抗震缝间距对涵洞应力的影响

The distance between aseismatic joints influences on stress of culvert

采用静力分析方法,对新疆某水利枢纽工程导流泄洪洞进行应力分析,得到涵洞在不同缝间距下的应力分布。通过三种方案的研究,判知:涵洞应力随抗震缝间距的增加而增大,抗震缝附近的应力明显增大,抗震缝的间距不宜过大或过小,缝间距宜为10 m左右。

The static analysis method was used to carry out a 3-D finite element analysis for the someone of Xinjiang engineering under different transformation joints. Stresses become larger when the distance between transformation joints become larger and the stresses around transformation joints are obviously larger than the others. So distance between transformation joints can＇ t be too large or too small, 10 m is a good choice.