| Tervlap
2020.05.25 10:51

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A cégcsoport korábbi irodaprojektjéhez hasonlóan az új épületet is a WELL Platinum minősítésnek megfelelően fejleszti a Futureal, ami az építés során szigorúan figyelemmel van a dolgozók egészségi állapotára és közérzetére. A program a WELL szigorú egészségvédelmi előírásaira alapozva dolgozta ki a „Stay Safe” újdonságait. Az alkalmazott gépészeti rendszer a levegő...

| Tervlap
2020.05.24 11:38

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A cseh stúdió két meglévő régi épület felújításával, és a hagyományos épületek léptékét és tömegformálását követő egyszerű, fekete-fehér hozzáadásokkal tette teljessé a Lasvit üveggyár irodáit. A Lasvit folytatni akarta a korábban üvegműhelyként használt meglévő épületek történetét, és a kortárs kiegészítésekkel kommunikálni a márka identitását. A megrendelő egy olyan társaság székhelyének...

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Miközben az 50-es, 60-as években unalmas, egyenlakótelepek épültek a városokban, az ipari építészetben szabadon szárnyalhatott a tervezők fantáziája.

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Új-Delhi híres kormányzati negyedét tönkretenné Narendra Modi miniszterelnök terve, ami bírálói szerint olyan, mint egy nagy hotel. A világhírű szobrász, Anish Kapoor is tiltakozik.

| MMK
2020.05.22 11:49
Mély fájdalommal értesítjük tagjainkat, hogy életének 96. évében elhunyt Dr. Kozák Miklós okleveles mérnök, kandidátus, a műszaki tudományok doktora, a Budapesti Műszaki Egyetem Vízgazdálkodási és Vízépítési Intézetének igazgatója, vasdiplomás mérnöke.

| MMK
2020.05.22 11:38
 Mély fájdalommal értesítjük tagjainkat, hogy életének 96. évében elhunyt Dr. Kozák Miklós okleveles mérnök, kandidátus, a műszaki tudományok doktora, a Budapesti Műszaki Egyetem Vízgazdálkodási és Vízépítési Intézetének igazgatója, vasdiplomás mérnöke.

Dallas– Compass Datacenters, LLC (“Compass” or the ”Company”) announced today its data centers will be built with concrete using CarbonCure technology. Developed by Nova Scotia-based CarbonCure Technologies, the procedure injects re-captured industrial CO2 into the concrete manufacturing process, dramatically reducing the volume of cement required in the mixing of concrete while also permanently removing CO2 from the atmosphere.

“Our data centers use concrete in many areas, from foundations and sidewalks to pre-cast walls and roofing,” said Nancy Novak, Compass Chief Innovation Officer. “We estimate using CarbonCure will reduce our CO2 footprint by an average of 1,800 tons per campus. That’s the equivalent CO2 sequestered by 2,100 acres of forest or driving a car 4 million miles. Our research and development investments are unique to the data center provider space but continually pay off with a lower-cost, faster-to-build, high-quality product.”

“Compass views sustainability from a holistic perspective, including construction and operations. By using CarbonCure technology in our concrete, we minimize our environmental impact without sacrificing quality,” said Adil Attlassy, Compass Chief Technology Officer. “Compass is helping the data center industry reduce its environmental impact with a holistic lens, supporting stewardship of our environment from construction through operations.”

“Cement is a major component of concrete and its production accounts for 7% of global CO2 generated, making it one of the largest contributors to carbon from the built environment. CarbonCure is pursuing a mission alongside many of the world’s leading concrete producers to eliminate 500 megatonnes of CO2 emissions from concrete production annually,” said Rob Niven, CarbonCure Technology’s Founder and CEO. “We are excited to be partnering with forward-thinking companies like Compass Datacenters to reduce the embodied carbon footprint of the built environment by making construction in the data center industry more sustainable.”

About CarbonCure Technologies

CarbonCure Technologies is the global leader in CO₂ utilization technologies for the world’s most abundant man-made material: concrete. The retrofit CarbonCure Technology enables concrete producers to use waste CO₂ to produce stronger, more sustainable concrete. CarbonCure is on a mission to reduce the embodied carbon footprint of the built environment, with the goal of reducing carbon emissions by 500 megatons annually. Hundreds of concrete plants around the world are producing concrete made with CarbonCure every day, supplying projects ranging from highways to high-rises and aquariums to airports. For more information, visit www.carboncure.com.

About Compass Datacenters

Compass makes lives better by providing the world’s technology leaders a secure place to plug in wherever they grow. We provide custom, move-in ready data centers from edge deployments to core facilities serving hyperscale, cloud and enterprise customers. Since our inception, we have embraced sustainability with the efficient use of land, green energy, water free cooling and building materials. Our campus approach empowers customers with easily-scalable capacity, high levels of control and ultimate flexibility with the long-term perspective and financial strength of private investors, RedBird Capital Partners, Ontario Teachers’ Pension Plan and the Azrieli Group. For more information, visit www.compassdatacenters.com.

The post COMPASS DATACENTERS ANNOUNCES USE OF CARBONCURE™ CONCRETE appeared first on Civil + Structural Engineer magazine.


| Consteel Blog
2020.05.22 02:23

It is known that the lateral torsional buckling resistance of a simple supported beam can be significantly increased if its compressed flange is connected adequately to a trapezoidal decking.

Eurocode allows to consider the compressed flange as fully restrained laterally, if the following condition is met (EN 1993-1-1 BB2.):

 

If the condition is not met, Eurocode doesn’t provide too much guidance how the contribution of the less rigid sheeting can be considered.

The following graph shows the effect of shear stiffness on the ultimate load capacity of a 10 m long simple supported IPE purlin loaded at the level of the top flange. It is assumed that several of these purlins are uses with 3 meters of distance between their centers.

The blue line in the graph shows the ultimate load carried by this purlin, in function of the actual shear stiffness. The graph has been built with the help of ConSteel software, using 7DOF beam finite elements. Such beam elements are adequate to consider the presence of any shear restraint.

In case of S=0, the value is calculated without any contribution. The line reaches the maximum value of 1, which is the ultimate load of this purlin, when lateral buckling checks are disregarded.

The required value of S, using the above formula is 16900 kN. If a typical roof sheeting of 35 mm depth is used and connecting screws are used at every rib, this condition can be fulfilled.

But if the screws are placed at every second rib only, the S value provided by the sheeting must be reduced by a factor of 5. The S values reduced by this factor of 5 would come to the range of 3000-7000 kN, being considerable below the required minimum S value, to disregard lateral torsional stability checks. These reduced S values are marked with vertical lines (yellow, orange and gray) on the following graph.

The very last vertical light blue line is placed at the required minimum S value of 16900 kN.

It is very well visible, that shear stiffnesses well below this minimum limit value can still provide almost 100% restraining effect, even if the screws are used at every second rib. In case of the thinner sheeting there appears although already a reduction of the ultimate load.

This picture shows the buckling shape of this simple supported purlin, under the presence of a shear restraint well below the minimum limit required by Eurocode.

There are not only screwed-down roofs used in the practice. On roofs on larger building often floating roofs are used. Such roofs can slide within certain limits independently from the sub-structure, allowing large areas to be built without interruption and dilatation which is very beneficial from water tightness point of view. In case of such roof systems, the lateral stiffness is much lower. Is there are test values available, they can be considered for design, but in such case evidently a full lateral restraint cannot be assumed and the lateral torsional buckling check must be performed by considering the actual values provided by the sheeting.

With the help of the mentioned 7DOF beam finite elements, these values can be considered in the analysis and in the forthcoming design step, built on the results of analysis. As visible from the graph, even a slightest actual shear stiffness can provide an increase of the ultimate load.

There might be also sheeting produced from aluminium, which can provide considerably lower stiffness than sheeting produced by steel. Or at parts there might be translucent panels made of plastic which is normally not considered as a load bearing component. But the analysis and design must be inline with the real structure, at such locations no restraint should be considered. This can also be correctly considered in the proposed analysis and design approach.


| Tervlap
2020.05.21 04:21

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A zsűrizésre hamarosan sor kerül, de az eredmények hagyományokhoz híven az őszi díjátadóig titokban maradnak. Ott azonban kettővel több díj talál gazdára: idén először tesztelik, melyik házak tetszenek legjobban a közönségnek. Évről-évre kínál újdonságokat az Év háza pályázat. A 10 év nyerteseit bemutató album, a középület kategória bevezetése, és a...

| Tervlap
2020.05.21 01:36

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Wilhelm Gábor szerint a solti ásatás azért nagyon izgalmas, mert a Duna-Tisza-közén nagyon ritka az ilyen feltárás. Bács-Kiskun megye területén Baján és Kecskeméten volt ehhez hasonló nagyságrendű munkálat. Kiemelte: Solton az évszázadok alatt egymásra épülve újabb és újabb kultúrrétegek jöttek létre. A csaknem kétméteres rétegsor kezdete több mint hatezer évre...

| Consteel Blog
2020.05.21 11:49

In everyday practice frames of pre-engineered metal buildings are often designed as 2D structures. Industrial buildings often have partial mezzanine floors, attached to one of the main columns, to suit the technology. Additionally, such buildings often have above the roof platforms for machineries.

When it comes to seismic design, as long as seismicity is not deemed to be a strongly controlling factor for final design, the mezzanines are just attached to the same type of frames as used at other locations and are locally strengthened, if necessary. Only the horizontal component of the seismic effect is considered in most of the cases.

The following picture shows a typical intermediate frame of a longer industrial hall, with built-in partial mezzanine floor and with a platform placed above the roof.

Picture0: Studied Intermediate frame 


Equivalent Lateral Force method

The most straightforward design approach is the Equivalent Lateral Force (ELF) method (EN 1998-1 4.3.2.2). There are certain conditions for the application of this method.

  • (1)P. this method may be applied to buildings whose response is not significantly affected by contributions from modes of vibration higher than the fundamental mode in each principal direction
  • (2) the requirement in (1)P is deemed to be satisfied in buildings which fulfill both of the following conditions

o   they have a fundamental period of vibration smaller than the followings

§  4*Tc or 2.0 sec

o   they meet the criteria for regularity in elevation given in 4.2.3.3

When a dynamic analysis is performed on this 2D frame, the following vibration modes are obtained:

Mode

Period of vibration (sec)

1

1.107

2

0.335

3

0.234

4

0.225

5

0.192

6

0.131

 


Table1: vibration modes

The first condition is met, but the criteria for the regularity in elevation is difficult to be judged. The first condition of 4.2.3.3(2) is met, but 4.2.3.3(3) is not really, as the mass is not decreasing gradually from foundation to the top, because of the heavily loaded above the roof platform.

Let us disregard this second criteria and accept ELF method first.

When the ELF method is applied, only the first (fundamental) mode is used, with the total seismic mass of the building. As the seismic effect is described with one single vibration mode only, the representation of the seismic effect is a simple equivalent load case. Using this regular load case all the common first and second-order analysis can be performed, as also the linear buckling analysis. For example, the bending moment diagram calculated from the dominant mode (from left to right) is the following:

Picture1: Bending moment using ELF method

This way ConSteel can perform an automatic strength and stability verification for the seismic (EQU) combinations. The results are visible here, respectively:

Picture2: Utilization ratios based on strength verifications using ELF method

Picture3: Utilization ratios based on stability verifications using ELF method


As it can be seen the structure is generally OK for strength, but there are some local overstresses at the platform and the utilization ratio is very high at the left corner. Regarding stability verifications the section seem to be weak. So – as expected – it is a key importance to be able to perform the stability verifications.

Of course, the platform column could be strengthened and close this exercise. But somebody can still have some doubts about the applicability of this ELF method, due to the criteria of vertical regularity.

Modal Response Spectrum Analysis

How could this be precisely calculated? The general approach proposed by EN 1998 is the Modal Response Spectrum Analysis (MRSA) (EN 1998-1 4.3.3.3). This method is applicable in all cases, where the fundamental mode of vibration alone does not describe adequately the dynamic response of the structure. MRSA will take into account all the calculated vibration modes, not only the fundamental and therefore the precise seismic effect can be worked out on the structure. But the main problem is that this will result an envelope of the maximum values of internal forces and displacements, without any guarantee that these correspond to the same time trace of the seismic action. Plus, they are not even in equilibrium…. And even the sign is only positive due to the use of modal combinations SRSS or CQC. And even worse, as the seismic action calculated this way cannot be described by a single load case, no linear buckling analysis can be done and therefore the automatic buckling feature of ConSteel cannot be used.

Let us see what MRSA with a CQC combination would give.

The first 7 vibration modes with the corresponding seismic mass participation values can be seen in the next table. The first column shows the frequencies in Hz and the second column shows the mass contribution factors in the horizontal direction. The other columns mean the mass participation in the other directions (out-of-plane and vertical), but these are not important for our example.

Table2: mass participation factors

EN 1998 requires to consider enough vibration modes in each direction to reach a minimum of 90% of the seismic mass. As visible, the fundamental mode has a relatively low contribution (77%) which justifies the initial doubts about only using this single mode and disregard all the others. To fulfill the 90% minimum criteria, the second mode must be also considered, but visible even the 4th and the 6th have non-zero (although less then 5%) contribution.

As said before ConSteel can perform only strength verifications but not stability verifications based on results of MRSA combined with CQC modal combination rule.

The bending moment diagram with the maximum possible values looks as shown below (all the bending moment values from the multimodal result are without a sign, they must be assumed as positive and negative values as well):

Picture4: Envelop bending moment diagram of maximum values, obtained with MRSA and CQC combination


The results of the strength verification are the following:

Picture5: Utilization ratios based on strength verifications using MRSA method with CQC combination

 

As visible the platform leg is still weak, it must be strengthened without a question. On other hand the utilization ratio (without stability verification!!) at the left corner is lower, therefore there is a chance the the ELF-based 97.9% strength verification result could be still acceptable as safe, but the stability must be checked somehow.

But it is also visible, that generally the bending moments obtained by MRSA CQC are much lower than those obtained with the ELF method. Why is this? And how can a stability verification be performed?

Seismic modal analysis with “selected modes” – ConSteel approach

Luckily ConSteel provides a very flexible approach, called as „selected modes” method. This allows the user to pick the vibration modes by himself/herself and create linear combinations from them by specifying appropriate weighting factors. As a result, a linear combination of the modal loads calculated from vibration modes is obtained, instead of the quadratic SRSS or CQC combinations, which can be considered already as a single equivalent load case and all the necessary first- and second-order static and linear buckling analysis can be performed, as in the case of ELF calculation.

The definition of the „selected modes” and the specification of weighting factor is not an automated process in ConSteel, it must be driven by the user. To be successful, it is important to understand how the structure works.

Although the first 2 vibration modes fulfill the minimum 90% mass contribution requirement, let us see the additionally also the 4th mode:

1st mode f=0.90 Hz, T=1.109 sec

Picture6: 1st vibration mode

 

2nd mode f=3.00 Hz, T=0.334 sec

Picture7: 2ndvibration mode


4thmode f=4.265 Hz, T=0.234 sec

Picture8: 4thvibration mode

 

The colors suggest that the fundamental mode describes globally the structure, but the second seems to affect additionally the platform region and the 2nd or 4this dominant for the mezzanine structure.

The corresponding bending moment diagrams are, respectively:

Picture9: Bending moment diagram calculated from the 1st vibration mode

Picture10: Bending moment diagram calculated from the 2nd vibration mode

Picture11: Bending moment diagram calculated from the 4th vibration mode


These bending moments also justify the assumption made based on the colors, the 2ndmode creates significant bending moments additionally to the first mode and the 4th mode creates significant bending moments additionally to the 1stmode. But it seems that also the 2nd mode created significant bending moments at this region.

It is interesting to note, that the bending moment diagram from the 1stmode (picture 9) almost perfectly fits to the CQC summarized bending moment (or course by assigning signs to the values based on the fundamental vibration mode) (see picture 4), except in the regions of the platform and the mezzanine. This means that in general the fundamental vibration modes describes quite well the dynamic response of this frame. And because of this, the bending moments could be calculated with the mass contribution factor corresponding to this mode (77%). And this is the reason, why the ELF method gives higher bending moment values, as there the same vibration mode was considered, but instead of the corresponding mass (77%), with 100% of the seismic mass.

As we discovered, the 2nd mode should be used together with the 1stmode to correctly describe the platform region, as this region is not fully dominated by the 1st mode only, the 2nd has a significant contribution.

Similarly to the mezzanine region, additionally to the 1st mode, here the 4thmode must be used to better approach the correct result.

The definition of the weighting factors could be done by the following – a bit arbitrary – way. Let us take the reference the MRSA CQC values at selected points of the structure and create corresponding rules for the linear combination to well approach the value obtained with the CQC combination, considered as reference value

Platform region

CQC value           70.21 kNm

1st mode            61.38 kNm          * 1.00    = 61.38 kNm

2nd mode           -33.29 kNm        * -0.265 = 8.82 kNm

Picture12: MRSA CQC Bending moment diagram considered as reference for the platform region


Mezzanine region (internal column)

CQC value           26.79 kNm

1st mode            11.74 kNm          * 1.00   = 11.74 kNm

4th mode            14.39 kNm          * 1.045 = 15.037 kNm

or (sidewall column)

CQC value           287.29 kNm

1st mode            272.87 kNm       * 1.00  = 251.55 kNm

2nd mode           89.10 kNm          * 0.16 = 35.74 kNm

Picture13: MRSA CQC Bending moment diagram considered as reference for the mezzanine region

 

As a summary the following 4 linear mode combinations could be set

For the frame in general

1: Mode 1 * 1.00

For the platform region

2: Mode 1 * 1.00 + Mode 2 * -0.265

For the mezzanine region

3: Mode 1 * 1.00   + Mode 4 * 1.045

4: Mode 1 * 1.00 + Mode 2 * 0.16

Of course, other weighting factors could be also set, as the condition we set was to meet the target value. The more target values we define in the region, we can more precisely set the factors. Usually it is recommended to keep the factor of the fundamental mode as 1.00 (or close to 1.00) and adjust the other factors for the modes appearing in the given mode linear combination as necessary.

With these 4 linear mode combinations we can already perform the automatic stability verifications. And the answers the original questions.

Utilization ratio at the left corner with stability verification included: strength 79.2%, stability 102.1% compared to the ELF results of strength 97.9% and stability 128.2%. So, the use of the ELF method was safe, the results can be accepted, the structure works for strength verifications but shows a small overstress regarding stability verification.

Leg of the platform: There was already a strength problem based on MRSA CQC results, therefore the post must be strengthened. The result of the stability verification with the fine-tuned seismic force is 106%.

Conclusion

This post wanted to call the attention of performing stability verifications for seismic combinations as well, like for any other combinations. For structures, where the ELF method is applicable, ConSteel can perform without problem these stability verifications automatically. Unfortunately for irregular structures the MRSA CQC method does not give directly a possibility. The special method implemented in ConSteel called „selected modes” can be successfully used to create loads, with the help of a linear combination with modes important for parts of the structures and with the resulted loads the stability verifications can already be executed.



| MMK
2020.05.21 11:01
A Magyar Mérnöki Kamara több éve sikeresen működő jogsegélyszolgálata iránti érdeklődés jelentősen megnőtt az elmúlt negyedévben. A veszélyhelyzet idején a jogsegélyszolgálatot a korábbi szóbeli, személyes konzultáció helyett a telefonon és e-mail-en történő tanácsadás keretében végezzük.

| MMK
2020.05.21 10:52
A Magyar Mérnöki Kamara elnöke, Nagy Gyula, május elején levélben javasolta a pályázatért felelős Pénzügyminisztériumnak, hogy a gazdaságélénkítő pályázatok feltételei között ne legyen alsó létszámhatár.

| Tervlap
2020.05.21 06:30

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Virtuálisan bejárhattuk a szegedi lézerközpont összes helységét, az itt folyó munkákat is megismerhettük. A fény kulcsfontosságú szerepet tölt be az emberiség életében, az ember a történelem előtti időktől kezdve különlegesen viszonyult a fényhez, mivel a környezeti ingerek 90%-a a szemünkön keresztül érkezik. Nem csoda, hogy a fénykutatás a tudósokat is...

| MMK
2020.05.20 09:46
Sok szervezet életében fontos esemény az évenkénti taggyűlés, vagy az azt helyettesítő küldöttgyűlés, amikor a vezetőség számot ad elmúlt évi munkájáról, céljainak teljesüléséről és gazdálkodásáról. Ez az esemény nyújt lehetőséget arra is, hogy a szakmai önkormányzat tagjai véleményt formáljanak a kamara munkájáról, illetve kijelöljék a következő év működésének főbb irányait.

| Brick+Data
2020.05.20 04:04

Ünnepel a teljes Brick+Data Csapat : -)

Beválogatták az Brick+Data egyik fejlesztését a Climate-KIC startup accelerator programjába.

Fókuszban a BIM Dashboard, ami valós idejű teljesítmény visszajelzést ad a tervezés alatt álló épületről, így folyamatosan segít a tervezőknek és beruházónak a helyes döntések meghozatalában.

Célunk az, hogy segítsük a fenntartható és gazdaságos épületek megszületését a tervezés folyamán történő adatalapú döntések segítségével.

A következő 6 hónapban az lesz a célunk, hogy a BIM Dashboard terméket gyorsítópályára tudjuk állítani:
– először egy 3 napos intenzív BootCamp-en veszünk részt, amit a holland származású Hans Westerhof fogja vezetni
– ezt követően a csapatra és termékre szabott üzleti coachingot fogunk kapni
– majd párhuzamosan több mentor segítségével fogunk dolgozni a termék fejlesztésén és piacra vitelén.


Biztosan jelentkezünk még részletekkel, kövessetek minket!

Csúsz István

The post BIM Dashboard projektünk a Climate-KIC startup accelerator programjában appeared first on Brick+Data.


VAUGHAN – Ware Malcomb, an award-winning international design firm, today announced construction is complete on two new buildings at Mississauga Gateway Centre, a Class A office complex offering both retail and office leasing opportunities in Mississauga, Ontario in Canada. Ware Malcomb provided architecture and interior design services and Triovest Realty Advisors was the development manager for the project.

Built on a 9.43-acre site, the two new five and four-story buildings are located at 2 and 8 Prologis Boulevard and total 21,048 square meters. The project was designed for Healthcare of Ontario Pension Plan (HOOPP) and the complex offers leasable build-to-suit space for office tenants.

The buildings are conjoined by a two-story entrance plaza that provides common areas and a coffee kiosk for tenants. The coffee kiosk was designed by Ware Malcomb’s interior architecture and design team. The entrance plaza also features a green roof and green wall, adding to its sustainability features. Curtain wall and aluminum composite panels were used on the exterior. The buildings have achieved LEED® CS Gold Certification.

In 2014, Ware Malcomb provided architectural design services for the first buildings at Mississauga Gateway Centre: a five-story, 13,935 square meter office building and a separate single-story, 4,181 square meter office building. Since then the complex has grown into a premier business park with seven buildings totaling approximately 59,458 square meters of Class A office space.

“Ware Malcomb has a long history with Mississauga Gateway Centre, and it is exciting to see it continue to grow as a premier destination for office and retail tenants alike,” said Frank Di Roma, Principal of Ware Malcomb’s Canada operations, including offices in Vaughan and Toronto. “This latest addition provides a striking new environment for a range of businesses.”

The General Contractor for the project was Ledcor Construction Limited.

About Ware Malcomb (waremalcomb.com)

Established in 1972, Ware Malcomb is an international design firm providing planning, architecture, interior design, branding, civil engineering and building measurement services to commercial real estate and corporate clients. With office locations throughout the United States, Canada and Mexico, the firm specializes in the design of commercial office, corporate, industrial, science & technology, healthcare, retail, auto, public/educational facilities and renovation projects. Ware Malcomb is recognized as an Inc. 5000 fastest-growing private company and a Hot Firm and Best Firm to Work For by Zweig Group. The firm is also ranked among the top 15 architecture/engineering firms in Engineering News-Record’s Top 500 Design Firms and the top 25 interior design firms in Interior Design magazine’s Top 100 Giants. For more information, visit waremalcomb.com/news and view Ware Malcomb’s Brand Video at youtube.com/waremalcomb.

About Triovest Realty Advisors

Triovest is an entrepreneurial leader in institutional real estate creating sustainable places that enhance communities and enrich relationships.  Its platform offers investment and advisory services with over $10 billion in assets under management and $2 billion in development.  From offices in each major market across Canada, Triovest combines local intelligence with deep expertise to drive superior returns. Visit triovest.com for more information.

The post WARE MALCOMB ANNOUNCES CONSTRUCTION IS COMPLETE ON TWO NEW BUILDINGS AT MISSISSAUGA GATEWAY CENTRE appeared first on Civil + Structural Engineer magazine.


| Tervlap
2020.05.20 01:22

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A MTESZ-székház közel tizenegyezer négyzetméteren az Országgyűlés Hivatalának háromszáz munkatársának nyújt majd nívós munkakörnyezetet. Ahogy a Magyar Építők korábban megjelent cikke részletezi, az 1970-ben épült székházat a tervek szerint szerették volna megtartani, ám a tartószerkezet állapota miatt inkább a teljes bontás és az újraépítés mellett döntött a megrendelő. Az iroda...

| Tervlap
2020.05.20 09:50

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Kétezer négyzetméterrel, 50%-kal növelik meg a SkyCourt alatt lévő csomagosztályozó területet azzal, hogy a forgalmi előtéren új épületrészt alakítanak ki, amely igény szerint tovább bővíthető. A kivitelezést februárban kezdték el, és várhatóan nyárra készül el. A Budapest Airport az új csarnok építésével párhuzamosan a csomagrendszer átvilágító berendezéseit is a jelenleg...

| AEC Magazine
2020.05.20 09:32

Image The new Dell Precision 3240 USFF workstation looks to be an interesting proposition for architects, engineers and designers looking beyond CAD and BIM

Read More ...


| MMK
2020.05.20 08:36
A Magyar Közlöny 111. számában megjelent a veszélyhelyzet során alkalmazandó egyes építésügyi, építésfelügyeleti és örökségvédelmi eljárásokkal kapcsolatos eltérő rendelkezésekről szóló 208/2020. (V. 15.) Korm. rendelet.

| Consteel Blog
2020.05.19 08:25

These days everyone is getting prepared for something: the children are waiting for the summer break, university students are preparing for their last exams, the rest is waiting for re-openings.

We at Consteel, we are busy with preparing Consteel 14, along with Pangolin (Consteel’s new Grasshopper plugin) while still working from our homes.

We did a small interview with a few of our colleagues on the getting-ready phase.

How do you feel about Consteel 14 on a scale of 1-14, where 1= Meh  14= I can’t wait for the users to see it!   ?

The team’s answers average is 11, which means we are pretty close to the finish!  

Let's see what our colleagues, working in different areas said.

Software Engineer

What are you responsible for, regarding the new version?

  • Pangolin, and the new Managed API underpinning it.

Pick something that you did (and is related to Consteel 14) and are especially proud of?

  • The Managed API, which will make programming ConSteel models from the outside possible in the ubiquitous .Net framework.

What are you working on right now?

  • Refinements of Pangolin.

Can you remember the hardest part during the development of something for Consteel 14 (if you want to / can name such)?

  • Solving various conflicts between Consteel's and Grasshopper's design philosophy in a non-confusing way.

Can you remember the greatest moment during the development of something for Consteel 14 (if you can/would like to, you can explain it a bit)?

  • Calculating the first 100% Pangolin created model.

How far away in time does the launch feel like?

  • Minutes.

How do your workdays look like? (Are you getting busier and busier each day or is it constantly easy/hard)?

  • Busier and busier as every change affects more and more.

Recommendation for the users to check out first after downloading Consteel 14?

  • Pangolin.

Anything else, that you would like to share about getting prepared for the new version launch?

  • Pangolin is immense but unrefined. The sooner and more you use it, the more suggestions and bug reports you to give us, the faster will it get better.

Development Engineer

What are you responsible for, regarding the new version?

  • Engineering background and functional planning for critical temperature calculation and linearly distributed surface load. coordination of the development of the new features I have tested the new features of ConSteel and created verification examples related to the new functionalities.

Pick something that you did (and is related to Consteel 14) and are especially proud of?

  • I think the intumescent paint design function is pretty thorough. It is unique that we calculate critical temperatures for every finite element. Also, I think it's quite reassuring that we automatically check back the critical temperature with the design utilization. It was a team effort, so I can't take all the credit, but I think it turned out great.

What are you working on right now?

  • Testing of design calculation improvements.

How far away in time does the launch feel like?

  • Feels like it's right around the corner compared to the months of development.

How do your workdays look like? (Are you getting busier and busier each day or is it constantly easy/hard)?

  • Constantly busy.


Software Engineer

What are you responsible for, regarding the new version?

  • Coordination of the development of the new features I have tested the new features of ConSteel and created verification examples related to the new functionalities.

Pick something that you did (and is related to Consteel 14) and are especially proud of?

  • Load distribution of the linear surface load, calculation of the critical temperature.

What are you working on right now?

  • On lots of bugfixes.

Can you remember the hardest part during the development of something for Consteel 14 (if you want to / can name such)?

  • Correcting the wrong codes of someone else.

How far away in time does the launch feel like?

  • Tomorrow.

Recommendation for the users to check out first after downloading Consteel 14?

  • Surface load.

Development Engineer

What are you responsible for, regarding the new version?

  • I have tested the new features of ConSteel and created verification examples related to the new functionalities.

Pick something that you did (and is related to Consteel 14) and are especially proud of?

  • I have written the system design document of the Beam - Beam Link Element.

What are you working on right now?

  • I am working on the verification of the effective section properties of the cold-formed sections.

How do your workdays look like? (Are you getting busier and busier each day or is it constantly easy/hard)?

  • Sometimes it is very easy, but there are days when I am very busy.

Software Engineer

What are you responsible for, regarding the new version?

  • Developing the smart link / beam-beam link feature, testing other new features, writing descript code.

Pick something that you did (and is related to Consteel 14) and are especially proud of?

  • Smart link / beam-beam link.

What are you working on right now?

  • Fixes and testing.

Can you remember the greatest moment during the development of something for Consteel 14 (if you can/would like to, you can explain it a bit)?

  • When the engineering team is vocally satisfied.

How far away in time does the launch feel like?

  • Too close :)

How do your workdays look like? (Are you getting busier and busier each day or is it constantly easy/hard)?

  • It's definitely getting busier

Recommendation for the users to check out first after downloading Consteel 14?

  • Smart link / beam-beam link :)

UX/UI designer

What are you responsible for, regarding the new version?

  • New website's design and some other design related material.

Pick something that you did (and is related to Consteel 14) and are especially proud of?

  • Pangolin logo

What are you working on right now?

  • Refreshing our product brochures.

Can you remember the hardest part during the development of something for Consteel 14 (if you want to / can name such)?

  • Designing the new website.

Can you remember the greatest moment during the development of something for Consteel 14 (if you can/would like to, you can explain it a bit)?

  • When I finished the logo for the Pangolin plugin.

How far away in time does the launch feel like?

  • It's around the corner.

How do your workdays look like? (Are you getting busier and busier each day or is it constantly easy/hard)?

  • It's like a roller coaster from January. But with deadlines approaching, it becomes busier.

Recommendation for the users to check out first after downloading Consteel 14?

  • Register on our website. :)


As you can see, Consteel 14 will be out soon, and its development happens with multiple dedicated experts' input.
We can't wait for the launch, stay tuned to get notified when you can access Consteel 14!


Ideal for replacing metallic material in a variety of cylinder applications

Walkerton, IN – Polygon Composites Technology, a leading manufacturer of composite tubing solutions for bearings, dielectric applications, surgical devices and more, announces PolySlide® Composite Tubing for pneumatic and hydraulic cylinders. PolySlide tubing replaces metallic material in a variety of cylinder applications.

Supplied as a cylinder tube ready for customer assembly, or as fully engineered cylinder assemblies for equipment manufacturer applications, the tubing is made of continuous filament-wound glass fiber and polymer resins. The fiberglass filament and resin materials combine together to form a high strength component that exhibits dimensional stability, is non-corroding, impingement resistant and is non-conductive. PolySlide is the solution for service in harsh environments. The cylinder tubing performs in high and low temperatures, grease, grit, salt, chemicals and other extreme conditions.

PolySlide cylinder tubing sizes range from as low as 0.25-inch inner diameter (ID) up to industrial-sized 24-inch IDs. The features of the tubing allow the seal to slide over the bore surface contour, minimizing interlocking friction. The inside diameter of the tubing has a smooth finish. Contact with the non-metallic rod guide bearing prevents galling and provides for a low coefficient of friction. A wear resistant material incorporated into the bore surface further increases the lifespan of the composite cylinder tubing.

Commonly found in pneumatic and low pressure hydraulic applications, such as fifth wheel actuation, gate valve actuators, water treatment flow control mechanisms, tie rod cylinders and more, a translucent version of the composite cylinder tubing is also available. For more information visit www.polygoncomposites.com/cylinders.

The post Polygon Announces PolySlide® Composite Tubing for Pneumatic and Hydraulic Cylinders appeared first on Civil + Structural Engineer magazine.


SPRINGDALE, Ark. – May 19, 2020 – Rockline Industries announced that the Arkansas Department of Labor has recognized its Springdale, Ark. campus with an award for exceptional safety, achieving 12 million safe work hours without a lost time accident (LTA) on April 8, 2020. This milestone puts Rockline Industries – Northwest Arkansas (NWA) in elite company as this has only been achieved one other time since Arkansas began recognizing workplace safety in 1976.

“Our associates really get it and are fully on board with our culture of safety. Despite all the recent distractions, our associates continue to go the extra mile in their daily work to help prevent safety incidents and this award is a testament to their dedication to safety,” said Mark Fougerousse, EHS manager of Rockline NWA.

The award from the department’s Occupational Safety and Health Division is part of Arkansas’ overall educational program to encourage workplace safety by honoring companies whose employees have accumulated a significant number of work hours without a lost day away from work due to a work-related injury or illness.

“Our team members do a great job of preventing incidents from occurring, if they see a potential risk, they speak up right away and it is addressed immediately,” Fougerousse continued. “In the time since hitting the 11 million safe work hours milestone our location has installed three new manufacturing lines and hired approximately 100 new associates all while keeping safety strong. We truly appreciate everyone’s dedication to being as safe as possible,” Fougerousse concluded.

“We have an incredible group of dedicated employees who believe that zero injuries are possible, at work and home. We pay attention to little details and truly look out for each other,” said Joel Slank, general manager of Rockline’s Springdale facility. “Awards are terrific but what’s more rewarding is the knowledge that our employees are acting safely and have a safe place to work,” Slank continued.

About Rockline Industries

Rockline Industries was founded in 1976 and is headquartered in Sheboygan, Wisconsin. It is one of the world’s largest manufacturers of coffee filters and consumer, health care, industrial and institutional wet wipes. A family-owned company, Rockline has repeatedly created first-to-market product design solutions for the wet wipe consumer and continues to provide innovative products to the nonwovens industry. Rockline employs nearly 2,500 people worldwide and has manufacturing facilities in Wisconsin, Arkansas, New Jersey, Tennessee, England and South China. For more information on Rockline Industries, visit www.RocklineInd.com.

The post Rockline Reaches 12 Million Safe Work Hours Milestone at Arkansas Plant appeared first on Civil + Structural Engineer magazine.


| AEC Magazine
2020.05.19 04:00

Image With the 2.13kg Precision 5750, Dell waves goodbye to the bulky 17-inch pro laptops of the past

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Tirana egyik legértékesebb műemlékét az Európai Bizottság, a köztársasági elnök és a helyi értelmiség sem tudta megmenteni.

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| Tervlap
2020.05.18 10:46

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| AEC Magazine
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Image Digital Blue Foam’s Covid Space Planner assesses the threat of exposure to virus in interior spaces

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| MMK
2020.05.17 11:34
Okleveles mérnök (BME 1951), kandidátus (1958) a műszaki tudomány doktora (MTA 1968), a BME vasdiplomás mérnöke. Nyugodjék békében, emlékét a mérnöktársadalom nagy tisztelettel őrzi meg.

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Pleasanton, Calif. — Simpson Strong-Tie, the leader in engineered structural connectors and building solutions, today joins ZFA Structural Engineers and Pullman Repair and Restoration in the launch of a new video detailing the team’s collaborative reconstruction, seismic retrofitting, and historic restoration of the Napa County Courthouse, which was critically damaged by the South Napa earthquake on April 14, 2014.

Registering 6.0 on the moment magnitude scale, the South Napa earthquake was the strongest to hit the San Francisco Bay Area since the Loma Prieta earthquake postponed the 1989 World Series. In addition to damaging plaster finishes, HVAC, and finish carpentry, the South Napa earthquake caused significant structural damage to the courthouse’s existing unreinforced masonry walls.

In the video, project leaders from Pullman and ZFA detail the use of fabric-reinforced cementitious matrix (FRCM) technology from Simpson Strong-Tie, a brand-new repair solution not used in California prior to the Napa County Courthouse restoration

Although several construction methods were considered for the repair of the courthouse structure, concrete masonry unit (CMU) walls were rebuilt to replace the most heavily damaged masonry walls, while FRCM technology was selected instead of more traditional repointing and grout injection as the solution for the less damaged walls with their countless small cracks.

FRCM systems are currently being introduced in the structural repair and rehabilitation industry as a new, effective strengthening technology offering reduced thickness, excellent durability, superior performance in high temperatures, and ease of installation versus traditional strengthening and repair methods

“When Simpson Strong-Tie brought FRCM to our attention, our confidence in them was at a high-enough level that we felt comfortable using a product that had not been used before in California,” says ZFA Executive Principal Kevin Zucco in the video chronicling the restoration. “With Simpson Strong-Tie, we know the product support is there, we know the engineering background is there, and we know we’ll get the approvals that we need.”

To prepare the team for the first-ever application of FRCM in California, mock-ups of the courthouse walls were built at a Simpson Strong-Tie research and development facility in nearby Stockton, CA, to practice installing the FRCM system. “From design support to field support, Simpson Strong-Tie was working with us hand in hand, and that made the process smoother and easier onsite,” says Pullman Project Manager Vivek Kumar in the video.

Since FRCM systems add less weight to the structure, they provide an excellent solution for strengthening concrete and masonry substrates, particularly in seismic retrofit applications. In addition to seismic retrofits, FRCM systems are ideal for the following applications:

  • Strengthening aging, damaged, or overloaded structures
  • Repairing and strengthening surfaces in a single application
  • Correcting size and layout errors
  • Matching existing substrate finishes
  • Strengthening or repairing damp substrates, or substrates in harsh environments subject to high temperatures, humidity, abrasion, or ultraviolet (UV) radiation

To watch the Napa Courthouse restoration video, click here. For additional information on the use of FRCM in seismic retrofitting and other applications, visit the Simpson Strong-Tie® FRCM information page.

About Simpson Strong-Tie Company Inc.

For more than 60 years, Simpson Strong-Tie has dedicated itself to creating structural solutions and technology to help people construct safer, stronger homes and buildings. Considered an industry leader in structural systems research, testing and innovation, Simpson Strong-Tie works closely with construction professionals to provide code-listed, field-tested products and value-engineered solutions. Our engineered products and solutions are recognized for helping structures resist high winds, hurricanes and seismic forces. They include structural connectors, fasteners, fastening systems, lateral-force-resisting systems, anchors, software solutions, and product solutions for repairing, protecting and strengthening concrete. From product development and testing to training and engineering and field support, Simpson Strong-Tie is committed to helping customers succeed. For more information, visit strongtie.com and follow us on FacebookTwitterYouTube and LinkedIn.

The post Simpson Strong-Tie, ZFA Structural Engineers, and Pullman Repair & Restoration Repair Napa County Courthouse Damaged by Quake Using Innovative Fiber Matrix appeared first on Civil + Structural Engineer magazine.


| Tervlap
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Tread’s Integration with the CONNEX Platform Provides Transparency in Materials, Transportation, and Ticketing on the Jobsite

BIRMINGHAM, Ala., May 13, 2020 (GLOBE NEWSWIRE) — Command Alkon, the Leading Supplier Collaboration Platform for Construction’s Heavy Work, and Tread, a digital platform for fleet management and moving construction materials like asphalt and aggregates easier and faster, are pleased to announce a new collaboration partnership. Together the solutions enable a many-to-many community of buyers, sellers, and haulers to seamlessly share ticketing data, enhance decision-making through insight-rich information, and remove the challenges associated with manual, siloed processes; including paper handoffs, data errors and duplication, and delayed invoice reconciliation.

“Partnering with Command Alkon is a natural fit for Tread as we grow across North America and help the industry embrace new technology solutions to increase productivity,” said Noah Dolgoy, Tread Founder & CEO. “By integrating our technologies, we expect to see a continued improvement in collaboration, payment automation, and workforce management as companies move to digitized processes and operate with greater visibility to tackle more complex projects.”

Tread’s platform will be integrated into Command Alkon’s CONNEX Platform, and will operate through one modern interface to streamline the processes for moving heavy construction materials through a digitized supply chain.

“Adoption of digitally collaborative technologies are removing historical inefficiencies in heavy construction and unlocking the kind of data-driven insights that dramatically improve intercompany workflows,” said Corey Paradis, Manager of Corporate Strategy at Command Alkon. “We are thrilled to have Tread join the platform as a CONNEX Connected Partner, offering jobsite stakeholders with the clear visibility they need to make smarter supply chain decisions in real-time.”

Tread is a cloud-based desktop and mobile platform that helps contractors, material producers, and movers across North America improve efficiencies in how aggregate, asphalt, soil, and salt are moved. Tread reduces dispatch times and provides operators with clear schedules, helping road builders and their subcontractors communicate seamlessly while improving productivity.

CONNEX’s purpose-built platform is designed to increase productivity levels and yield exceptional results across project performance, schedule, workforce management, and safety. The automated processes capture clear visibility across operations. Real-time collaboration and business intelligence tools for the heavy work supply chain are built in.

ABOUT TREAD
Tread is a construction tech company headquartered in Toronto, Canada, that workswith contractors, material producers, and movers across North America to advance how aggregate, asphalt, soil and salt are moved, using their cutting-edge technology. Tread strives to help everyone in the supply chain improve their performance and operations, from contractors, material producers, or movers. Tread is a proud member of national and regional associations across the US and Canada including OCA, OAIMA, FTBA, ORBA, OSSGA, ARHCA, and ASGA. For more information, please visit tread.io.

ABOUT COMMAND ALKON

As the Leading Supplier Collaboration Platform for Heavy Work, Command Alkon solutions deliver supply chain integration and frictionless digital collaboration across the heavy construction ecosystem. CONNEX, a many-to-many technology platform purpose built for the industry, enables business partners to automate inter-enterprise operations, capture real-time visibility into heavy material orders and deliveries, leverage leading-edge software experiences to achieve mutually beneficial goals, and share knowledge to manage by exception and promote certainty of outcomes. Founded in 1976, Command Alkon is headquartered in Birmingham, Alabama and has offices in locations around the globe. For more information, visit commandalkon.com.

The post Command Alkon and Tread Team Up to Streamline Management of Heavy Material Movements in Construction appeared first on Civil + Structural Engineer magazine.


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