大跨径连续梁桥中的温度应力研究

Research on the influence of temperature stress load on long span continuous girder bridge

由于构件混凝土材料的属性,连续梁桥在温度载荷下会在内部引起较大的应力和应变,从而会产生裂缝。裂缝一旦形成,将对桥梁的交通安全和桥梁的使用产生重大影响。因此,文章认为研究温度荷载对于连续梁桥的影响是必要的,且具有一定的参考价值。

Because of the characteristics of the concrete materials of the continuous beam bridge,under the action of temperature load,there will be a large stress and strain inside the bridge,resulting in cracks.Once the cracks are formed,they will have an important impact on the traffic safety of the bridge deck and the use of the bridge.Therefore,it is necessary to study the influence of temperature load on continuous beam bridge,and has certain reference value.