用梁格法分析新旧连续刚构桥的拼接效应

Joint effect of the new and old continuous steel bridge analyzed by gridiron method

介绍了箱形截面梁的梁格分析法,指出了使用梁格法在建模计算以及分析结果时应当注意的问题,并采用该方法对某高速公路改扩建工程的一新旧连续刚构(32+60+32)m跨线桥进行拼接效应分析,论证了对该类型桥实施整体拼接的可行性。

It introduces the gridiron method of the box section beam,points out the problems need attention in the modeling calculation and result analysis with the gridiron method,and does joint effect analysis to a new and old continuous steel dry bridge（32＋60＋32） m in one highway extend project with this method,which proofs the feasibility of actualizing integral joint to this style bridge.