torsion vector

To be in light of the fault of increase coefficient of bias distance η formula in current RC standard in practice,considering the influence of two stepped moments by using limited unit theory again and again,we reached the η of corresponding side and side deflection f of biasing structure whose column ends are different and restraint conciliations are not the same.

针对现行钢筋混凝土设计规范中η计算公式在应用方面存在的某些不足 ,采用有限元迭代法并考虑二阶弯矩的影响 ,得出了在不同端弯矩和约束条件下偏压构件任意截面处侧向挠度 f与相应的η值。