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Hi To All In two way flat slabs do you fix or pin the edge and corner columns???

Hi to all When is the Mechanical Roofs not considered as a part of the main structure in seismic analysis? Thanks

TXStructural The phrase “as the limit does NOT apply to engineered solutions” this is an excellent phrase… to answer your question, the slab is a two way flat slab… the duct as I mentioned earlier is now 100mm after a good discussion with the client… now I took your advise and started with what...

Thank you hokie66 and Ron for the quick reply...I totally agree with you both that the request is ridiculous but the client has some background in engineering and a simply rejection will not be enough... however; the HVAC came back with a new diameter and not it is 100mm .... so basically the...

Hi To All I have a client that is asking to run his round HVAC in the flat concrete slab... the issue is that the pipes are 150mm in diameter and the flat slab thickness is 230mm ... I am trying to find a provision in the Canadian code or a paper... I found in the ACI318 clause 6.3.5.1 that the...

@ wannabeSE Thank you wannabeSE for your input and advise

Hi to all When is the Mechanical Roofs not considered as a part of the main structure in seismic analysis? Thanks

I need to add here that the structure have concrete shear walls

HI To All I am trying to start learning the pushover analysis in ETABS... Is there any guides on how to do that.. or steps that anyone recommends? Thanks

@slickdeals Thank you, it did work, and i also made the effort by deleting the walls that we do not need and adding columns instead and have them with pinned ends as you suggested. As for the deleted walls i added their self weight into the slabs. Now I am trying to find if there is any UPLIFT...

Hi To All I am fairly new in ETABS and I have now a situation where not all the walls are to be used to resist the lateral seismic forces. Or on other words I have existing walls and I want to introduce to a structure new shear walls that should take the seismic forces up to a certain floor...

Wow you guys are great.. this is my first time in this forum and i like it... From what i read in your comments (i mean all of you) and from what i was researching I apploaded a sketch that explains what are my intentions and what problems i am facing here...

Hi to all Due to space restrictions, is it possible to place the wooden joists directly on an I-Beam without having any wood nailer between the wooden joists and the I-beam, it is noted here that at the end of the joists there is a 2 1.3E LVL's (i.e. the LVL's are running along the I-beam) ...