空间钢管桁架人行天桥的设计与分析

Design and Analysis on Space Steel Pipe Truss Elevated Pedestrian Crossing

该文对上海浦东云莲路人行天桥的总体设计作了介绍,该桥为27m+27m的两跨钢管桁架连续梁。利用空间有限元程序建立梁单元模型对其受力进行了分析。根据受力结果了解各杆件的应力情况,并对应力较大部位进行优化设计,采用新颖的构造措施改善其应力水平。

The article introduces the overall design of the elevated pedestrian crossing in Yunliang Road of Pudong Shanghai.The crossing is a 27 m + 27 m 2-span steel-pipe truss continuous beam bridge.The space finite element program is used to set up the beam unit model for analyzing its bearing.The article understands the stress conditions of every pole according to the bearing result,and optimizes the design of the larger stressed positions.The new constructional measures are used to improve its stress level.