通扬运河大桥梁板试验分析

Analysis on Beam Slab Test of Tongyang Canal Bridge

该文通过一根25m预应力混凝土空心板的静载试验,测试了空心板在试验荷载作用下的工作状态,测定了结构的强度、刚度,将实际测试值与理论计算值进行了比较,并分析了空心板预加应力时的上挠度实测值偏小的原因,从而判断了空心板的安全承载力和使用条件。

Through the static load test of a 25-m pre-stressed concrete hollow slab, the working status of the hollow slab is tested under the testing load action, and the strength and rigidity of the structure are measured. The article compares the measured value with the theoretical calculation value, and analyzes the cause of smaller measured value of camber during the prestressing of hollow slab so as to estimate the safe bearing capacity and the using conditions of hollow slab.