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本文提出利用等效荷载法计算主弯矩,进而计算次弯矩的方法.计算了预应力井式梁和双向板的次弯矩,并对其特征进行分析.算例表明,井式梁和双向板的次弯矩在支座间不呈直线分布,而是由于相邻构件的约束呈空间立体形状.次弯矩在方向和数值上也有其独特的特征.
In this paper, the method of calculating the primary bending moment using the equivalent load method and then calculating the secondary bending moment is proposed. The secondary bending moments of the pre-stressed well beam and the two-way slab are calculated and their characteristics are analyzed. The example shows that the well beam and the The secondary bending moments of the two-way plates are not distributed linearly between the bearings, but are due to the spatial three-dimensional shape of the constraints of the adjacent members. The secondary bending moments also have their unique features in terms of direction and value.