推荐回答(3个)
一、性质不同
1、通长筋:直径不一定相同但必须采用搭接、焊接或机械连接接长且两端一定在端支座锚固的钢筋。
2、架立筋:辅助箍筋架立的纵向构造钢筋。
二、作用不同
1、通长筋:保证发挥受拉承载力。
2、架立筋:主要作用是把受力钢筋固定在正确的位置上,并与受力钢筋连成钢筋骨架,从而充分发挥各自的力学性能。
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扩展资料:
通长筋的应用:
沿梁全长的顶部和底部应至少配两根纵向钢筋。第一级和第二级抗震等级的钢筋直径不应小于14mm,且不应分别小于梁顶和梁底纵向钢筋较大截面面积的1/4。三、四级抗震等级的钢筋直径不应小于12mm。框架梁采用双肢抱箍时,必须在跨中采用长筋,不设抱箍。
当采用两个以上抱箍时,方可进行抱箍。通长钢筋按受拉搭接长度加长,立筋只交错150,为“结构错开”,不起连接作用。
参考资料来源:百度百科-架立筋
参考资料来源:百度百科-通长筋
架立钢筋设置在梁的受压区外边缘两侧,用来固定箍筋和形成钢筋骨架。如受压区配有纵向受压钢筋时,则可不再配置架立钢筋。架立钢筋的直径与梁的跨度有关 般的说,架立筋是梁中用来架立箍筋的,差不多出现在三肢箍以上的梁,就是两边的筋是通过了,中部筋只有附加筋(也就是我们说的挑筋),如果没有架立筋的话,中部的那肢箍筋没法绑了,所以出现了架立筋呀.
1、 梁往往并非一跨,而是多跨.贯通筋就是通长筋,一直穿过多跨.中间接头需要绑扎或机械连接,质量确有保证时也可用焊接.
2、 梁的集中标注中必注贯通筋.贯通筋是纵筋,是梁最重要的受力筋.
3、 梁的的支座需要附加筋和负筋,此类钢筋往往伸入相邻跨三分之一处截断,不是贯通筋.
4、 非贯通筋应原位标注.多数时候也是受力筋.
5、梁的箍筋为多肢,上下筋不能满足肢数要求时,需要增加架立筋.架立筋计算时不考虑受力,仅为满足箍筋肢数要求,保证梁的整体性,图纸上不需要标注.
6、 梁的侧面有时需要增加构造筋,抗扭钢筋等等,集中标注必注.
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附图在哪里?
通长筋经常代替架力筋或代替负筋。架力筋若直径不小于Φ12,而且有合格的连接,并且最两端又有可靠锚固时,也能代替通长筋。以上情况是在设计时,结构师运筹的事。当设计没明确时,施工单位也应尽这个义务。(这个义务不是责任)
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