单箱三室PC连续弯箱梁桥静载试验

Research on Static Load Test of PC Continuous Curved Box Girder Bridge with Single Box and Three Chambers

为了评估某单箱三室连续弯箱梁桥的实际承载能力,验证桥梁设计和施工质量的可靠度水平,对其进行静载试验。试验结果表明:各控制截面的挠度和应变实测值均比理论分析值小,与之对应的校验系数在规范要求范围内,该弯箱梁桥的结构刚度和强度均满足规范要求;静载试验前后,测试截面附近区域未见明显裂缝。

In order to evaluate the actual carrying capacity of the single-box and three-room continuous-box curved girder bridge and verify the reliability level of the design and construction quality of the bridge,the static load test was conducted.The test results show that the deflection and strain of each control section are smaller than the theoretical analysis value,and the corresponding calibration coefficient of the bridge meets the specification requirements,with no obvious cracks in the area around the static load test.