U型预应力混凝土支护板桩承载力计算方法

Calculation method for bearing capacity of U-shaped pretressed reinforced concrete sheet pile

采用I字形截面构件水平承载力计算方法计算U型预应力混凝土支护板桩水平承载力,其中U型计算截面运用截面等效法简化为I字形截面,预应力计算按照预应力混凝土结构构件预应力损失法。该计算方法简单快捷,计算结果与现有U型预应力混凝土板桩承载力试验数据吻合较好,可靠性较高。

The horizontal bearing capacity of U-shaped pretressed reinforced concrete sheet pile was calcu- lated by the method for calculating that of the I-shaped structures. The U-shaped calculation section was simplified as I-shaped section by the equivalent cross-section area method. The prestressing was calculat- ed by the prestress loss method. This method was simple and convenient. The calculation results agreed well with the experimental data of existing pretensioned U-shaped prestressed reinforced concrete sheet pile and had high reliability.