分析表明：车辆荷载谱作用下桥梁偏载作用明显；
The results indicate that under the vehicle load spectrum the effect of the non-symmetric load is obvious.
在对桥梁交通荷载进行调查统计分析的基础上，建立能代表真实运营状况的车辆交通荷载谱，从而实现结构所承受荷载历程的模拟。
Based on the investigation and statistics analysis of the traffic load, the traffic load spectrum which can reflects the actual load history of structures is simulated.
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