有关钢筋的问题

2025-02-12 08:36:23
推荐回答(2个)
回答1:

一、主次梁上表面标高一样时,只有次梁底筋在主梁底筋上 次梁面筋在主梁面筋上 一种做法;

二、梁上连接两端支座负弯筋的架立筋的作用是固定箍筋,直径12是为了代替框架梁上部应有的通长筋,当代替通长筋时必须满足受力钢筋的搭接长度;上部架立钢筋(包括通长筋)的根数同于箍筋的肢数;
三、一级接头钢筋直螺纹加工时不得用切断机切,因为切口是斜的,不能保证两边的钢筋顶住;用手臂的力量能把整个套筒都拧进去的话 就表示直螺纹加工得太深 对钢筋承载能力很有影响;

四、梁下部钢筋的锚固弯钩向上还是向下,规范不会规定,11G101-1上画出来的是中国人的习惯,英、美的习惯喜欢朝下锚在柱子里,可以避免节点钢筋拥挤;

五、设计不可能不指定按一排或两排配置,现场不可以自行决定,无法安排时应与设计人沟通。

回答2:

第一条看图集,第二条受力钢筋和架立筋加起来不小于箍筋肢数,架立筋意思就是形成架子的钢筋,你不用担心,设计会注明钢筋根数的,包括架立筋根数,第三条直螺纹加工太深会导致两边的钢筋顶住,导致拧不紧!具体你看看直螺纹接头的规范,第四条,向上向下都行,怎么方便怎么弯,具体看G101和G901,目的是锚固,第五条配出来5/1是写错了,一排放不下才放2排,需要达到受力钢筋总截面面积

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