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本文以某空心板梁桥为工程背景,采用梁格法对该桥进行分析,得出了该桥在设计荷载下单片梁(板)的最大内力情况,然后按照等效荷载发方式对其进行加载,测试了该桥在汽车荷载作用下各梁(板)关键截面的应变和位移。试验表明,采用梁格法能够简便准确的计算出空心板(梁)桥结构的受力状态,为类似的桥梁结构检测提供参考和依据。
In this paper, a hollow girder bridge is taken as the engineering background, the girder method is used to analyze the bridge, and the maximum internal force of the monolithic girder (plate) under the designed load is obtained. Then the equivalent internal load is used to load the girder , The strain and displacement of the key section of each beam (plate) under the load of the car were tested. The test shows that the beam grid method can calculate the stress state of the hollow slab (beam) bridge structure easily and accurately, and provide reference and basis for the similar bridge structure detection.