The load combination is complex with consideration of the effect of asymmetry distribution of liveload, snow accumulation and horizontal seismic load.
且考虑了屋面活载不均匀效应、雪压堆积效应和水平地震作用的影响，荷载组合复杂。
2
Reliability index is influenced by the variance of basic parameters, resistance distribution, and ratio of liveload to dead load.
可靠指标与极限状态方程中的各基本变量的变异性、抗力的概型分布、以及活荷恒荷效应比有关。
3
Based on the universal finite element analysis software ANSYS, a spatial model of the bridge is built and the stress distribution under the liveload on main sections is analyzed.