Seismic ground motion values by zip code

Conterminous US 0. Virgin Islands 0. Client Testimonials. Read why professionals worldwide are choosing ISAT or write your own. With over 15, completed projects, we own the experience! Visit Gallery. The best support from start to finish. Video Library. Seismic Kits.

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Values shall be determined in accordance with Section Use straight-line interpolation for intermediate values of mapped spectral response acceleration at 1-second period, S 1. See requirements for site -specific ground motions in Section TABLE In each of the two orthogonal directions, the fundamental period of the structure used to calculate the story drift is less than T s. The diaphragms are rigid or are permitted to be idealized as rigid in accordance with Section P Bookmark.

Section Structural Design, Earthquake Loads Seismic ground motion values shall be determined in accordance