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桥梁的横向分布状态,是评价桥梁状态的重要手段之一。然而针对损伤桥梁的荷载横向分布关系的研究,对桥梁的评估及加固技术具有非常重要的经济及社会意义。通过建立损伤桥梁的力学模型,分析梁体刚度的变化对桥梁荷载横向分布的影响,通过模拟分析力学模型,得到桥梁荷载横向分布的各内力值,并同试验结果进行对比分析,最后将所得的数值同各变量的理论数值进行对比,得出各变量的校验系数,进而得出该荷载等级下桥梁的工作状况系数,达到对该桥承载力和正常使用状态进行评估的目的。
The horizontal distribution of the bridge is one of the important means to evaluate the status of the bridge. However, the research on the transverse load distribution of damaged bridges has very important economic and social significance for the assessment and reinforcement of bridges. By establishing the mechanical model of damaged bridge, the influence of the change of the rigidity of the beam on the transverse load distribution of the bridge is analyzed. Through analyzing the mechanical model, the internal force values of the transverse load distribution of the bridge are obtained and compared with the test results. Finally, The numerical value is compared with the theoretical value of each variable, the calibration coefficient of each variable is obtained, and then the working condition coefficient of the bridge under the load level is obtained to evaluate the bearing capacity and the normal use state of the bridge.