钢筋混凝土双向偏压构件的最优配筋计算

Calculation of the optimum reinforcement for RC members under biaxial eccentric loads

在平截面假定的基础上,推导出了钢筋混凝土(RC)双向偏压构件正截面承载力计算的有关公式;在Matlab环境下,编制了此类构件配筋的电算程序,并开发了相应的用户界面。利用该界面,设计者只要输入构件的截面尺寸、材料强度和外力,即可得到该构件最经济的配筋形式。该方法概念清楚,结果精确可靠,也同样适用于RC单向偏压构件的配筋,可为工程设计提供极大的方便。

On the basis of plane hypothesis,relative formulas for the reinforcement calculation of RC compressive members under biaxial eccentric loads were derived. In Matlab,a program was compiled for the determination of optimum reinforcement pattern of such RC members and the corresponding graphic user interface was developed. By using this interface to obtain the optimum reinforcement pattern for a section,the designers only need to input the cross sectional dimensions,strengths of materials and internal forces at the section. With clear concept and accurate results,the method is also suitable for determining the reinforcement for RC members under uniaxial eccentric loads so that is can be conveniently used in design.