曲线刚构桥参数敏感性分析

Analysis on parameter sensibility of curved rigid-frame bridge

通过建立曲线刚构桥的Midas有限元模型,分析了有关计算参数对桥梁结构受力响应的敏感性,指出对曲线刚构桥而言,混凝土容重、弹性模量以及曲率半径的敏感性较强,采用轻质高强材料以及尽可能大的曲率半径对有效提高曲线连续刚构桥的安全性是有益的。

Through establishing Midas finite element model of curved rigid-frame bridge,the paper analyzes sensibility of relevant calculation parameters upon bridge structure stress response. As far as curved rigid-frame bridge being concerned,the sensibility of concrete volume,elastic modulus and curvature radius are rather stronger,applying light-weight and high-strength material and rather big curvature radius are beneficial for improving curved continuous rigid-frame bridge safety.