空心板桥铰缝损伤后的横向影响研究

Research on the transverse influence of damage of hinged joints of hollow slab bridges

基于ANSYS有限元软件,建立能够模拟空心板桥铰缝损伤的力学模型,分析铰缝损伤后各板横向影响线的变化.结果表明,铰缝损伤会降低空心板横向传递荷载的性能,且铰缝损伤程度越大,各板分配到的最大荷载越大;同时,铰缝损伤后,距离受损铰缝越近、与周围完好连接越少的板,其受力状态越不利.

Building a mechanical model to simulate the hollow slab bridge under hinge joint damage base on ANSYS software,and analyzing the change of the transverse influence line of each slab after damage.The results show that the damage of the hinge joints will reduce the performance of the transverse load transfer of the hollow slab,and the greater the extent of hinge joint damage,the greater the maximum load distributed to each slab.And after hinge joints are damaged,the slab that the closer damaged hinge joint or less slabs are intact will bear more unfavorable stress.