桥梁结构的精细化分析

Refined Analysis of Bridge Structure

近些年,随着各国桥梁新规范的出台,国际工程界开始倡导桥梁结构的精细化分析,美国AASHTO桥梁设计规范、欧洲桥梁规范Eurocode和中国桥梁规范均已将桥梁结构的精细化分析纳入相关条款,对桥梁结构的精细化分析逐渐引起了人们的重视。笔者在用Midas Civil对钢桁架桥进行三维整体计算的基础上,采用ANSYS对局部构件建立仿真模型,并进行精细化分析。通过分析结果,进一步优化局部构件的设计,提高了桥梁结构的安全性。

With the introduction of new bridge specifications of many countries in recent years,the refined analysis of bridge structure has been advocated by the international engineering community and included into relevant provisions in AASHTO bridge Design Specification in the United States,Eurocode bridge Design Specification in Europe and China bridge Specification.The refinement analysis of bridge structure has gradually attracted people's attention.Steel truss bridge is 3D integral calculated by Midas Civil.Simulation model of local components is built by ANSYS.Refined analysis is done.According to the analysis results,the design of local components is further optimized and safety of bridge structure is improved.