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根据国内某高速公路扩建工程前的行车状况,对重载车辆进行分类汇总,采用数理统计的方法得到重车车辆荷载模型。基于此荷载模型,对既有预应力混凝土T梁桥的受力状态进行分析,为预应力混凝土T梁桥的拓宽改建提供依据。
According to the traffic conditions of a highway expansion project in China, the heavy-duty vehicles are classified and summarized, and the load vehicle model of heavy-lift vehicles is obtained by mathematical statistics. Based on this load model, the stress state of existing prestressed concrete T-beam bridge is analyzed, which provides the basis for widening and rebuilding the prestressed concrete T-beam bridge.