三拱肋钢管混凝土拱桥的温度效应研究  

Study on Temperature Effect of Three Arch Rib CFST Arch Bridge

作　　者：徐清 XU Qing(China Gezhouba Group Construction Engineering Co.,Ltd.,Kunming,Yunnan 650200,China)

机构地区：[1]中国葛洲坝集团建设工程有限公司,云南昆明650200

出　　处：《建筑施工》2020年第4期648-651,共4页Building Construction

摘　　要：由于截面特性以及材料特性等因素,混凝土钢管拱桥在受到日照及温度梯度的影响后,系梁及拱肋截面会产生较大的温度应力,从而对桥梁的稳定性、安全性造成相应的影响。通过某三拱肋钢管混凝土拱桥的温度效应研究,分别分析温度对系梁及拱肋的内力影响,从而研究出温度效应对钢管拱桥的受力影响规律,为以后同类型桥梁施工提供一定的借鉴依据。Due to the cross-section characteristics and material characteristics and other factors, when the concrete filled steel tube(CFST) arch bridge is affected by sunshine and temperature gradient, the tie beam and arch rib crosssection will produce greater temperature stress, which will have a corresponding impact on the stability and safety of the bridge. Through the study of temperature effect of a three arch rib concrete filled steel tube arch bridge, the influence of temperature on the internal force of tie beam and arch rib was analyzed respectively, so as to study the influence law of temperature effect on the stress of the steel tube arch bridge, and provide reference for the same type of bridge construction in the future.

关 键 词：钢管混凝土桥 温度梯度 应力 拱肋 

分 类 号：TU973.2[建筑科学—结构工程]