劲性骨架混凝土拱桥徐变收缩应力重分布试验研究

Research of Stress Redistribution at the Section on Creep--Shrinkage of Sturdy Framework Concrete Arch Bridge

本文根据某大型拱桥的模型试验研究,对徐变收缩导致截面应力重分布问题,提供了系统的实测资料,并与徐变换算截面特性法的理论计算结果作了详细对比分析。在此基础上,对大桥的设计施工提出了有益的建议。

Based on the model test of a large span arch bridge, this paper offeres a series of test deta on the stress redistribution at the section leaded by creep shrinkage and compares them with the result calculated with the method of creep couversion section property. A instrutive advice is offered for the design and construction of large span bridges.