某不对称配筋偏心受压柱,b×h=300mm×500mm。用HRB335级钢筋,其中受压钢筋用4 22,A' s =1520mm 2 ,混凝土强度等级为C30,构件的计算长度l 0 =6.0m,承受轴向压力设计值N=130kN,柱端弯矩设计值M 1 =M 2 =203.8kN·m。安全等级二级,环境类别为一类。设a s =a' s =40mm试计算钢筋截面面积A s 。
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