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请问大于100M超长地下车库要设伸缩缝吗? - 工程施工 - 项目管理 - 氿上知道
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满意答案
1。车库顶部要有不小于500的覆土。
如果没有覆土,建议用Ansys等有限元软件对顶板进行分析并通过加强配筋、采用预应力和下述2~6条措施加以处理。
2。混凝土中掺微膨胀剂。
具体见《混凝土外加剂应用技术规范》GB50119-2003
3。适当加强可能产生应力集中部位的钢筋。
4。按《地下工程防水技术规范》GB50108-2001规范的防水混凝土要求设计和施工。
5。采用细而密的布筋方式(钢筋间距不大于100)。
6。采用上述措施后,才100米长如果施工单位的现场管理水平比较规范放心可以不作后浇带(我那个地下车库140米长就未设后浇带),否则可在中间适当部位设一条后浇带(其实如果施工单位现场管理差,设了后浇带更容易漏水,设的目的只是将来发生扯皮时减少设计的责任,呵呵江湖险恶要有自我防范意识麽)。
7。尽量选择在比较冷的季节施工。
8。建议建筑将车库改为长而蜿蜒的蛇行布局。其效果就相当于地下长水管隔一定距离需加一个U型管一样,可以有效化解伸缩应力。
LilyZ
回答于:2014-03-19
共2条回答