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沉降后浇带和施工后浇带有什么区别呢? - 工程施工 - 项目管理 - 氿上知道
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满意答案
1、后浇带是建筑物长度超过规范长度及为了施工要求，后浇带主要作用：1）在前期施工中混凝土水化热变化产生破坏（也就是防止：热胀产生楼板起拱、开裂、施工时模板变形倒塌等作用），2）使用率高及美观，3）降低成本。后浇带施工时与沉降缝区别是：后浇带钢筋不能断开而且要加强，在施工前必须预留足够搭接长度伸出来，后浇砼按原设计等级要提高一个等级并且外加胀膨剂，沉降缝钢筋可以断开平齐施工。
2、沉降缝主要是起到建筑物不均匀下沉产生裂缝之用，主要设在高低层恒荷载相关较大的部位。基础与基础之间一般都是断开，可以留置在基础以外，如：作悬挑梁、板，沉降缝同时也可以作伸缩缝之有。
ComeOn
回答于：2013-08-28
共3条回答