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。
The load combination is complex with consideration of the effect of asymmetry distribution of live load, snow accumulation and horizontal seismic load.
当不均匀沉降较明显时，必须检查其对结构内的作用效应。
Where significant differential settlements are likely their influence on the action effects in the structure should be checked.
讨论了初始表面不均匀性对剪切效应的影响程度。
Lastly, the influence of the initial imperfection of the shear stress is studied as well.
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