TESTS TO COLLAPSE OF SIMPLE STRUCTURES AND COMPARISON WITH EXISTING CODIFIED PROCEDURES

摘要

The results of tests on fifteen four-column frame specimens subjected to progressive unidirectional ground shaking up to collapse are analyzed. Test structure performance is compared with proposed limits for minimizing P-A effects in highway bridge piers. The stability factor is found to have a strong relation to the relative structural performance in this regard. Specimens with 9 less than 0.25 satisfied the proposed criteria for at least a portion of their respective test schedule. The limit is violated prior to the final test in which complete specimen collapse occurs. Finally, a series of shake table tests are compared with an analytical model using two methods.