首页/ 题库 / [问答题]轴心受压构件设计时,纵向受力钢筋和箍筋的的答案

轴心受压构件设计时,纵向受力钢筋和箍筋的作用分别是什么?

问答题
2022-01-05 00:54
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正确答案

纵筋的作用:①与混凝土共同承受压力,提高构件与截面受压承载力;②提高构件的变形能力,改善受压破坏的脆性;③承受可能产生的偏心弯矩、混凝土收缩及温度变化引起的拉应力;④减少混凝土的徐变变形。横向箍筋的作用:①防止纵向钢筋受力后压屈和固定纵向钢筋位置;②改善构件破坏的脆性;③当采用密排箍筋时还能约束核芯内混凝土,提高其极限变形值。


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