摘要
文章基于相似理论和抗弯刚度相似原则对桃花峪大桥主塔进行试验模型设计,并依托建立的ABAQUS有限元模型,采用Full-Newton法分析施工阶段塔柱P-Δ压弯耦合效应引起的非线性力学行为。试验结果表明:顶推施工能够使截面应力水平降低约12%~18%。
Based on the similarity theory and the bending stiffness similarity principle, this article con- ducted the experimental model design on the main tower of Taohuayu Bridge, and, based on the es- tablished ABAQUS finite element model, it used Full-Newton method to analyze the nonlinear mechan- ical behavior caused by the P- △ compression and bending coupling effect of tower column during the construction.The test results showed that the jacking construction can reduce the section stress level by about 12% - 18%.
作者
陈松
冯德生
CHEN Song;FENG De-sheng(Chongqing Municipal Research Institute of Design,Chongqing,400020;Chongqing Branch of North China Municipal Engineering Design ＆ Research Institute Co.,Ltd.,Chongqing,400020)
出处
《西部交通科技》
2018年第8期143-146,172,共5页
Western China Communications Science & Technology
关键词
自锚式悬索桥
主塔
模型设计
有限元
顶推施工
Self-anchored suspension bridge
Main tower
Model design
Finite element
Jacking construction
