The results indicated that transverse shear effect affects greatly on the bending properties of the plank while the ratio of span-height was small.
结果表明：在跨高比较小时，横向剪切效应对板的弯曲性能有显著影响；
The calculated strength could show the affection caused by transverse shear effect and the affection had only relation to the loading value and no to the ratio of span-height.
预测的强度能够反映出横向剪切效应的影响，其影响只与载荷大小有关，而与跨高比无关；
For the relatively smaller loads, the economical height-to-span ratio scopes of space steel trusses and space prestressed steel trusses can be found.
对于相对较小的荷载，可以找到立体钢桁架及立体预应力钢桁架的经济高跨比范围。
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