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以甬江大桥为背景,进行联塔结构模型试验,通过全过程加载试验和理论分析,探讨了联塔结构的抗弯承载力和极限状态。根据试验现象和荷载-位移关系,总结了在弹性阶段、开裂阶段结构的变形特征。试验结果符合理论分析规律,结构有较大的安全储备。
Taking the Yongjiang Bridge as the background, the tower model test was conducted. Through the whole process of loading test and theoretical analysis, the flexural capacity and limit state of the tower were discussed. According to the phenomenon of test and the relationship between load and displacement, the deformation characteristics of the structure during the cracking stage are summarized. The test results are in line with the law of theoretical analysis, the structure has a larger safety reserve.