基坑临时支撑穿地下室结构节点施工技术

Construction Technology of Crossing Basement Nodes of Temporary Support for Foundation Pit

介绍了3种常用的地下室内支撑结构的立柱形式,阐述了其受力特点及对应的节点防水做法。立柱穿底板节点防水设计与施工采用水泥基渗透结晶型防水涂料、止水钢板、防水卷材等材料进行加强处理、多道设防,确保节点不渗漏且结构受力合理,保证临时支撑节点的防水效果。

This article introduces three commonly used pillar forms of basement indoor support structure, and elaborates its stress characteristics and corresponding node waterproofing practices. CCCW, waterproofing steel plate and waterproofing membrane are used for strengthening treatment and multi-channel fortification, to ensure that the nodes are not leaking, the structural stress is reasonable, and the waterproofing effect of temporary supporting nodes is guaranteed.