桥梁结构日照温差二次力及温度应力计算方法分析

摘要

The temperature difference between the bridge prestressed concrete box beam structure under solar radiation effects induced by the stress mainly include self restraint stress and secondary stress of these two aspects,to a certain extent,resulting in the bridge structure crack,is not conducive to the stability,the safe operation of the bridge.In view of this situation,and the key points of this paper focu-ses on the analysis of the bridge structure calculation method of temperature stress and temperature stress two times,hope can further be used in engineering practice.%预应力混凝土箱梁结构桥梁在太阳辐射作用之下所诱发的温度差异应力主要包括自我约束应力以及次应力这两个方面，会在一定程度上造成桥梁出现结构裂缝，不利于桥梁自身的稳定、安全运行。针对此情况，分析桥梁结构日照温差二次力以及温度应力的计算方法与要点，望能够进一步在工程实践中加以应用。