Abstract：Analyze the dynamic structure characteristic and three dimensional seismic wave response of a two-span continuous skew girder bridge, using parameters such as skew angle, shear span ratio, reinforcement ratio and axial compression ratio and so on. Take a skewed girder bridge of Fuzhou for engineering background, design a 1:5 scale two-span continuous skewed girder bridge model for the shaking table experiment, by the shaking table experiment and FEM modeling, study the seismic response rules and destroy characteristic of the skewed girder bridges. Results of shaking table test show that: the structural acceleration response and displacement response are different under different types of ground motion and the same site category but with different seismic action. The smaller of the axial compression ratio, the larger of the acceleration and displacement response with the same skew angle; when the axial compression ratio is the same, the smaller the skew angle, acceleration and displacement response is big. Through the test, a reasonable choice of skew angle has great influence on the dynamic performance of bridge in the design of skew bridge.
许永吉，卓卫东. 两跨连续斜交梁桥振动台试验研究[J]. 振动与冲击, 2016, 35(5): 228-233.
XU yong-ji, ZHUO wei-dong . Research on the shaking table test of a two-span continuous skew girder bridge. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(5): 228-233.
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