钢筋净距不准会出现什么后果

2025-04-07 03:14:16
推荐回答(1个)
回答1:

混凝土结构设计规范GB50010-2002 10.2.1梁钢筋混凝土梁纵向受力钢筋的直径当梁高h≥300mm时不应小于10mm,当梁高h<300mm时不应小于8mm。梁上部纵向钢筋水平方向的净间距(钢筋外边缘之间的最小距离)不应小于30mm和1.5d(d为钢筋的最大直径)下部纵向钢筋水平方向的净间距不应小25mm和d。梁的下部纵向钢筋配置多于两层时,两层以上钢筋水平方向的中距应比下面两层的中距增大一倍。各层钢筋之间的净间距不应小于25mm和d。 10.3.1柱中纵向受力钢筋应符合下列规定; 1、纵向受力钢筋的直径不宜小于12mm全部纵向钢筋的配筋率不宜大于5%圆柱中纵向钢筋宜沿周边均匀布置根数不宜少于8根且不应少于6根 2、当偏心受压柱的截面高度h≥600mm时在柱的侧面上应设置直径为10-16mm的纵向构造钢筋并相应设置复合箍筋或拉筋 3、柱中纵向受力钢筋的净间距不应小于50mm,对水平浇筑的预制柱其纵向钢筋的最小净间距可按本规范第10.2.1条关于梁的有关规定取用。 4、在偏心受压柱中垂直于弯矩作用平面的侧面上的纵向受力钢筋以及轴心受压柱中各边的纵向受力钢筋其中距不宜大于300mm。

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