无梁支承的混凝无柱帽板不大于30。HRB335钢筋成为历史
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取消板类构件最小配筋率0.15的规定
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8.5.1 钢筋混凝土结构构件中纵向受力钢筋的配筋百分率ρmin不应小于表8.5.1规定的数值
。C15砼 、计规筋成柱和斜撑构件的范又纵向受力普通钢筋宜采用HRB400
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