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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...
Pete The intent of Section 12.13.9.3.4 is to assure that if lateral spreading occurs, and imposes permanent lateral deformation of the pile along its length, that the pile will still be able to sustain the gravity loads imposed on it and not cause collapse. The degree and rigor of analysis...
Good Day, This is my first posting, so I am grateful for any feedback/input. We have some discussions in our office related to Provision 12.13.9.3.4 in ASCE 7-16, in particular: Is the intention of this provision such that the engineer is to perform a p-delta analysis with secondary effects on...
The only load that need be considered for a pipe submerged within a basin i the inertial seismic load on teh pipe (and its contents) alone. Convective and impulsive loads, important to design of tank shells are not applicable to pipes within the basin. This is becasue the pipe is surrounded by...
I am looking for some clarification regarding the seismic load calculation for a pipe support anchorage design. The scenario is a pipe submerged in a water-filled concrete basin which is located in a high seismic region and experiences sloshing. In such a scenario, I understand that the pipe and...
Thank you so much for taking the time to answer my question. Your input was extremely helpful. -- Yousif Jacob A.M.ASCE Principal YJ Inc. Santa Clarita CA --
The minimum wind loads of Section 27.1.5 are intended to be used in the Chapter 2 load combinations, either LRFD or ASD. If using ASD, the 0.6 factor in the combinations is applicable. -- Ronald Hamburger, SE Consulting Principal Simpson Gumpertz & Heger --