| 英文摘要 |
An experimental program for a single-span scaled bridge model equipped with two types of rubber bearings was performed using shaking table test and pseudo-dynamic test. Among the four test cases with three peak ground accelerations, major differences for the case with same input ground acceleration but different test methods aroused from the coefficient of friction used. The maximum displacement of girder obtained from shaking table test was observed to be smaller than the one from pseudo dynamic test, as well as the results in the residual displacement. In addition, whether the friction/sliding of rubber bearing will occur or not, the measured base shear force of the column satisfied well with the inertial force of the superstructure being transferred via bearing system, not only from the test but also in the analytical model. In comparison of results, the analytical results in the proposed numerical model were found helpful in predicting the maximum displacement demand on girders and the shear force demand in columns. |
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