| Abstract: | Records obtained from the West Valley College Gymnasium in Saratoga, California during the 1984 Morgan Hill earthquake are used to study the dynamic behavior of the overall gymnasium as well as its flexible disaphragm. The ground-level motions recorded in the two orthogonal axes of the structure differ considerably in peak acceleration and amplify by approximately 1.5 times at the roof edges and by 4-5 times at the center of the diaphragm. The diaphragm responds with a frequency of approximately 4 Hz in both orthogonal axes. A simple finite-element model is used to match the fundamental frequency of the diaphragm with that from the records. Using this model and the ground-level motions as input, the diaphragm center displacements are calculated by varying the structural damping. Best comparisons are obtained for 5% damping. These results are discussed in terms of the code provisions. |
| Genre: | Article |
| ProdID: | 70015385 |
| Citation Author: | Celebi, Mehmet; Bongiovanni, Giovanni; Safak, Erdal; Brady, A. Gerald |
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| Citation End Page: | 350 |
| Citation Issue: | 2 |
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| Citation Language: | English |
| Citation Larger Work Title: | Earthquake Spectra |
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| Citation Number Of Pages: | 14 |
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| Citation Search Results Text: | Seismic response of a large-span roof diaphragm; 1989; Article; Journal; Earthquake Spectra; Celebi, Mehmet; Bongiovanni, Giovanni; Safak, Erdal; Brady, A. Gerald |
| Citation Start Page: | 337 |
| Citation Volume: | 5 |
| Citation Year: | 1989 |
| Type: | citation/reference |
| Text: | Seismic response of a large-span roof diaphragm; 1989; Article; Journal; Earthquake Spectra; Celebi, Mehmet; Bongiovanni, Giovanni; Safak, Erdal; Brady, A. Gerald |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1193/1.1585525 |
| Date Other: | Sun, 1 Jan 1989 00:00 -0600 |
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