双层桥箱内壁车辆碰撞混凝土损伤仿真研究

摘要

Double-decked continuous box bridge is a new structure system and how to evaluate the structure damage caused by vehicle collision inner box has a great significance to the wide application of the new structure .This paper researches all conditions of structure damages caused by vehicle collision inner box by means of computerized simulation .The study finds out the concrete injured parts and its degree ,analysis the sensitive factor of concrete damage ,which provides suggestions for the design of double-decked bridge .%双层连续箱梁桥是一种新型结构体系，如何评价车辆撞击箱梁内部造成的结构损伤对于这种新型结构的广泛运用具有重要意义。通过计算机仿真技术研究各种工况下车辆对箱梁桥内壁撞击引起的结构损伤情况，得出混凝土损伤部位以及程度，分析影响混凝土损伤的敏感因子，为双层桥结构设计提供参考。