钢管混凝土拱桥温度问题研究综述

A state-of-art of research on temperature problem of concrete filled steel tubular arch bridge

对钢管混凝土拱桥温度问题的研究现状进行了综述.从钢管混凝土拱肋截面温度场分析、核心混凝土水化热计算模型、钢管混凝土拱桥温度应力的计算、温度变化与脱粘关系等方面,分析了现有研究已解决和尚未解决的问题.指出今后的研究应开展温度场的实桥测试分析,综合考虑桥梁所在区域、桥梁结构形式和拱肋截面形式等因素,提出温度场的简化计算方法,同时要研究温度变化与脱粘的关系.

A state - of - art of research on CFST arch bridge temperature problem is presented. The summarization focused on the solved and unsolved problems on temperature field analysis, hydration heat calculation model for core concrete, thermal stress and the relationship between debonding and temperature variation. Some suggestion for future research is put forward such as temperature field analysis of real bridge, research considering region factor and type of cross section and structure, simplified temperature field calculation method; and it is pointed out that analysis on relationship between debonding and temperature variation should pay enough attention.