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结构设计知识:房屋中易倒塌部位宜选择的加固方法有哪些?
日期:2018年8月22日 浏览[]

房屋中易坍毁部位宜挑选的加固办法有哪些?窗间墙宽度过小或抗震才能不满足要求时,可增设钢筋混凝土窗框或选用钢筋网砂浆面层、板墙等加固。支承大梁等的墙段抗震才能不满足要求时,可增设砌体柱、组合柱、钢筋混凝土柱或选用钢筋网砂浆面层、板墙加固。组合柱加固的设计与施工,可按本规程第9.3.3、9.3.4条的规则执行。


结构设计知识:房屋中易倒塌部位宜选择的加固方法有哪些?


 支承悬挑构件的墙体不符合判定要求时,宜在悬挑构件端部增设钢筋混凝土柱或砌体组合柱加固,并对悬挑构件进行复核。隔墙无拉结或拉结不牢,可选用镶边、埋设钢夹套、锚筋或钢拉杆加固;当隔墙过长、过高时,可选用钢筋网砂浆面层进行加固。


结构设计知识:房屋中易倒塌部位宜选择的加固方法有哪些?


出屋面的楼梯间、电梯间和水箱间不符合判定要求时,可选用面层或外加柱加固,其上部应与屋盖构件有牢靠衔接,下部应与主体结构的加固办法相连。出屋面的烟囱、无拉结女儿墙、门脸等超越规则的高度时,宜撤除、降低高度或选用型钢、钢拉杆加固。悬挑构件的锚固长度不满足要求时,可加拉杆或采纳减少悬挑长度的办法。


What are the suitable reinforcement methods for collapsing parts in houses? When the width of the window wall is too small or the seismic resistance can not meet the requirements, the reinforced concrete window frame can be added or reinforced with steel mesh mortar surface layer, slab wall and so on. The masonry column, composite column, reinforced concrete column or reinforced with steel mesh mortar surface layer and slab wall can be added when the seismic resistance of the wall segment supporting the beam can not meet the requirements. The design and construction of composite columns can be carried out according to rules 9.3.3 and 9.3.4 of this code.

When the wall supporting the cantilevered member does not meet the requirements of judgment, it is advisable to add reinforced concrete columns or masonry composite columns at the end of the cantilevered member to strengthen, and to check the cantilevered member. If the partition wall has no tie or is not firmly tied, it can be strengthened by edge setting, embedded steel jacket, anchor bar or steel tie bar; when the partition wall is too long or too high, it can be strengthened by steel mesh mortar surface layer.

When the staircases, elevators and water tanks out of the roof do not meet the judgment requirements, the surface layer or additional columns can be used to reinforce the roof. The upper part should be firmly connected with the roof components, and the lower part should be connected with the reinforcement method of the main structure. When a chimney, a parapet wall without tie, a door face, etc. beyond the regular height, it is advisable to remove, reduce the height or use section steel, steel rod reinforcement. When the anchorage length of the cantilevered member does not meet the requirements, it is possible to add a pull rod or adopt a way to reduce the length of the cantilever.



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