Based on the bridge doctor finite element analysis software,taking the proposed 30 m+30 m+30 m three-span continuous T-beam bridge in the mountainous area of Guizhou province as an exam-ple,the finite element models of the original bridge and the widening bridge are established respective-ly,and the transverse distribution coefficient before and after the bridge is quantitatively analyzed,and the mechanical response change law of each beam under construction and operation is quantitative-ly analyzed.The results show that the internal force and displacement of the beam adjacent to the wid-ened section vary by 10%to 20%,and the internal force and displacement change of the rest of the beam are not more than 4%.
关键词
改扩建工程/桥梁拼宽/横向分布系数/受力性能
Key words
reconstruction and expansion project/bridge widening/lateral distribution coefficient/mechanical performance
维普
万方数据