Chapter 30. C. Example Problems Part 1 ‐Low‐Rise Buildings Part 2 ‐Low‐Rise Buildings (Simplified) Part 3 – Buildings with h 60 ft Part 4 – Buildings with h ASCE 7 ‐10. To use the C&C design procedures of ASCE 7‐10, the building must meet the following. Seismic Loads Based on IBC 2012/ASCE 7-10 Based on Section 1613.1 of IBC 2012, “Every structure, and portion thereof, including nonstructural components that are permanently attached to structures and their supports and attachments, shall be designed and constructed to resist the effects of earthquake.
Wind Pressure Minimum requirements
Wind Pressure Minimum requirements
Hello,
Both ASCE 7-10 (28.4.4) and IBC 2012 (1609.6.3) list minimum wind pressures at 16 psf for walls. ASCE 7-10 also lists 8 psf minimum for vertical projections of roofs.
The minimum wind load comes into play on single story structures particularly in exposure B. There has been much written about LFRD vs ASD wind design. IBC has a conversion factor (1609.3.1). It seems obvious to me that 16 psf is an LFRD minimum wind pressure. 16/1.6 = 10 psf should be the minimum ASD wind pressure similar to ASCE 7-05.
The issue I am having is that neither code specifically lists this minimum value as an LFRD value and many Governing Agency building officials are now requiring the use 16 psf minimum for ASD lateral design of one story wood buildings. What literature is available that addresses this item - particularly ASCE or IBC sourced?
Thanks,
Rich Warren
S3 Engineers
Both ASCE 7-10 (28.4.4) and IBC 2012 (1609.6.3) list minimum wind pressures at 16 psf for walls. ASCE 7-10 also lists 8 psf minimum for vertical projections of roofs.
The minimum wind load comes into play on single story structures particularly in exposure B. There has been much written about LFRD vs ASD wind design. IBC has a conversion factor (1609.3.1). It seems obvious to me that 16 psf is an LFRD minimum wind pressure. 16/1.6 = 10 psf should be the minimum ASD wind pressure similar to ASCE 7-05.
The issue I am having is that neither code specifically lists this minimum value as an LFRD value and many Governing Agency building officials are now requiring the use 16 psf minimum for ASD lateral design of one story wood buildings. What literature is available that addresses this item - particularly ASCE or IBC sourced?
Thanks,
Rich Warren
S3 Engineers
Open Buildings Designed with ASCE 7-10
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Open Buildings Designed with ASCE 7-10
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In ASCE 7-10, should Chapter 27 or Chapter 28 be used to determine wind loads on an open low-rise building? I would prefer to use Chapter 28, but the title for Part 1 of Chapter 28 only indicates that it should be used for enclosed and partially enclosed low-rise buildings, but the user note in 28.2 says that this part should be used for enclosed, partially-enclosed or open low-rise buildings. The user note is not technically part of the code, so I'm inclined to think that chapter 28 cannot be used for open buildings unless there is a good argument that the title to part 1 has a typo and should include open buildings as well.