Seismic Design Category Map. For the design of buildings in seismic design category a, use asce 7 section 11.7. Per local ordinance it is 20 psf with further statement that snow loads shall be determined per section 7 of asce 7, but the design roof load shall not be less than a uniform snow load of 25 psf.

90 mph for both 2003 irc and 2003 ibc. In the international building code and the. The selection of seismic design category for use in the design and analysis of all new and existing facilities shall be based on the spectral response accelerations shown in table 4 after adjustment for site class effects as specified in asce 7.

Search for address or coordinates reference.

The hazard maps this study produced are contained in the british standards. However, for ceilings, sdc d, e and f are roughly equivalent to the previous seismic zones 3 & 4. As alluded to earlier, the sdc indicates the amount of attention that must go into the seismic design and construction of a building. 2003 ibc is based on section 1614.