斜交框构桥开裂的有限元分析

The cracking of an oblique crossing frame bridge with finite element analysis

从理论上对裂缝产生的原因进行了分析,并结合京九线项目中某个工点框构桥,采用有限元分析软件SAP对框构桥进行整体建模计算分析,得出了框构桥各板体的受力特点,并提出了对应受力特点进行配筋补强的方法。

The anthor firstly analyses the reason of crack cccuring in theory. Then combining with a frame bridge of Beijing-Jiulong railway, he modelings frame bridge to calculate by using finite element software SAP. It gets an conclusion about mechanical characteristic of frame bridge and the author gives some suggestion about the problem mentioned at the beginning.