单箱双室连续箱梁桥荷载试验研究

Experimental study on load testing of single box double chamber continuous box girder bridge

结合某单箱双室预应力混凝土连续梁桥工程,介绍了该桥静力荷载试验的内容与方法,其中包括测点布置、荷载布置、加载制度以及试验结果与计算结果的对比分析等。通过静力荷载试验来测试桥跨结构强度、刚度,以检验桥跨结构在正常使用状态下的承载能力和结构变形是否符合设计要求。试验结果表明:该桥结构处于正常受力状态,结构刚度、强度均满足规范要求。

Combined with the project of a single-box and double-chamber prestressed concrete continuous beam bridge,the contents and methods of static load test of the bridge are introduced,including the arrangement of measuring points,load arrangement,loading system and the comparative analysis of test results and calculation results.The strength and stiffness of bridge span structure are tested by static load test to verify whether the bearing capacity and structural deformation of bridge span structure in normal service state meet the design requirements.The test results show that the bridge structure is under normal stress,and the structural stiffness and strength meet the requirements of specifications.