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An interior roof equipment screen wall can be designed for the forces in section 29.4.1, Rooftop Structures and Equipment for Buildings. This provision takes into account the elevation of the screen wall, which is the concern if using a freestanding wall load. This also answers the second part...
What is the proper wind load for a freestanding equipment screenwall in the field of a roof (ie outside edge zones 2 or 3)? Parapet pressure does not seem pertinent as the wall is a substantial distance from the edge of the structure. The freestanding wall load methodology seems somewhat...
Thank You, Very much Sir. On Fri, Nov 10, 2023 at 1:20 PM Ronald Hamburger via ASCE Collaborate wrote: Vijaya- Brian Carlisle already responded with regard to wind drifts. For seismic, drifts are computed per ASCE 7-10 Section 12.8.6. The drift... Peer-to-Peer Standards Exchange Post New...
Vijaya- Brian Carlisle already responded with regard to wind drifts. For seismic, drifts are computed per ASCE 7-10 Section 12.8.6. The drift of concern is that due to seismic alone (not in combination with other loads). Seismic drifts are computed using the horizontal forces associated with the...
What are the load combinations that should be considered for the drift checks with the allowable limits. #ASCE7-10 -- Vijaya Saidu R.Eng, M.ASCE Civil and Structural Engineer Chaguanas --
So, are you saying that the reduced live loads cannot be applied to foundations ?
The reduction is applied because of attractive forces upwards due to planets, but foundation elements experience mostly gravity and some uplifts of water tableEr. Alex Thomas MIE REng CEng M ASCEPP 1000111 000011940940Prof of practice
The standard is silent on the reduction of live loads for foundations, however, foundations are permitted to be designed for the design loads on the columns they support. Thus if livelad reductions are used to compujte the loads in the columns and column bases, these same loads acan be used to...