梁上打孔是否需要加固?

2025-03-15 12:27:00
推荐回答(3个)
回答1:

框架结构中主梁和次梁是楼面载荷承接点,是不允许打孔的,且你打的孔径达到梁高的四分之一了,还不只一个孔,孔间隔较密,会造成应力集中而影响上面载荷,甚至会造成局部结构上的破坏,严重点说是属于破坏性施工,应该予以加固。
砖混结构中有承重墙和圈梁,承重墙是载荷的承接点,因此装修时不允许破坏承重墙的。
你所说“右边平行间隔约5公分打了两个,左边打了一个,孔径均为7.5cm, 梁的长度为6m,宽及厚均为30cm,在打孔的过程中未打到钢筋。”的情况,实属罕见,不管是框架结构还是砖混结构,其主梁、次梁、圈梁从钢筋的排布看不应出现未打到钢筋的情况。

回答2:

如果没打断钢筋就不需要

回答3:

  梁上是不能打孔的,受力结构。
  由支座支承,承受的外力以横向力和剪力为主,以弯曲为主要变形的构件称为梁。
  1、 从功能上分,有结构梁,如基础地梁、框架梁等;与柱、承重墙等竖向构件共同构成空间结构体系,有构造梁,如圈梁、过梁、连系梁等,起到抗裂、抗震、稳定等构造性作用。
  2、 梁按照结构工程属性可分为:框架梁、剪力墙支承的框架梁、内框架梁、梁、砌体墙梁、砌体过梁、剪力墙连梁、剪力墙暗梁、剪力墙边框梁。
  3、 从施工工艺分,有现浇梁、预制梁等。

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