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the "NaN Vmph" means that the software developed an error. I just ran a generic site in the middle of the island, using the hazard tool and successfully obtained wind results. I suggest you try again, if you have not done so already, and if this does not work, try shifting you site location...
This message was posted by a user wishing to remain anonymous I'm trying to determine the wind speed for a Risk Category II structure located on Kauai, Hawaii. When I input the info into the hazard tool, the wind output indicates "NaN Vmph." What does this mean and how do we determine the wind...
There are two separate considerations for nonstructural components in ASCE 7 Chapter 13. One of these is protecting building occupants from falling debris and relates to anchorage and bracing of these components so that they do not become dislodged during shaking and become a falling hazard. The...
In my professional opinion, exemption is not the same as exclusion. It may be that other load cases and combinations govern the design instead of "SDC-C with overall weights less than 20lbs". PLEASE NOTE: I am use to dealing with structures supporting mechanical devices and including some...
This message was posted by a user wishing to remain anonymous Hello together, I'm going to design an application for a customer in Saudi-Arabia (SDC=C), who demands, that components need to be seismically approved acc. to ASCE 7. The intended application is a mechanical, nonstructural device...
Dear Osama , fluctuations in water table is affected to the structure may not be taken as a load in fact reduction of load can be applied. Due to attraction from above and gravity below to cause shrinking and expansion. In any case a basement floor is advisable. Weight of removed material is...
Section 2.3.4 does not address buoyancy, but rather, self-straining effects, such as thermal loads, shrinkage, creep, etc. In both ASCE 7-16 and 7-22 loads associated with water embodied in soil is considered as load H in the load combinations of Chapter 2. ASCE 7-22 contains somewhat clarified...
Dear ASCE, I have a technical question regarding the buoyancy load ( uplift pressure from the ground water), as per ASCE 7 -22, section 2.3.4, could we consider it as Hw with factor of 1.0 , or the load will be under fluid load (F) with load factor of 1.2? could you please advice
Ronald, Thank you so much for this very helpful response! We looked into the ASCE 37-14 and the Eurocode EN-1991-1-6. Our met masts usually serve in unpopulated areas in deserts or mountainous regions. Their service life is usually less than 3 years. Having looked at the codes,...