钢筋混凝土受弯构件纵向受拉钢筋面积的合理取值

THE REASONABLE EVALUATION OF THE AREA OF THE LONGITUDINAL TENSILED REINFORCEMENT IN THE REINFORCED CONCRETE BENDING COMPONENT

提出了将裂缝控制和挠度控制均用纵向受拉钢筋面积Ａｓ来表达的设计方法，使得两类极限状态具有直接可比性，避免了传统方法为满足裂缝控制和挠度控制而盲目增大钢筋面积和截面尺寸的现象，是一种实用而又经济合理的设计方法。

A design method described by the area of longitudinal tensile bars for crack and deflection control is given herein.This metbed makes the two kind of limit states comparable and avoids the phenomenon in the traditional way increasing arbitrarily the area of bars and section dimensions for satisfying the demand of crack and deflection control.This design method is a economic and reasonable one.