配筋混凝土结构设计中几个问题的探讨

DISCUSSION ON SOME PROBLEMS FOR DESIGNING OF REINFORCED CONCRETE STRUCTURES

本文结合现行《铁路桥涵设计规范》，对预应力混凝土染运营阶段由预加力引起的混凝土应力，普通钢筋混凝土梁截面上板梗相交处的剪应力，以及轴心受压构件的计算等问题进行了深入的分析与探讨，指出了规范的欠妥之处，并提出了相应的改进建议。

This paper has analyzed and discussed the following three problems according to theRailway Bridge Design Code:concrete stress of prestressed concrete beams at usage,shearstress at the cross of flange and web of reinforced concrete beams,analysis procedure of axi-ally compressed members。Irrationality of the present design code is pointed out.Some sug-gestions for improvement are presented here。