Construction method and structure of fixing cantilevered I beam by foam: Fid-Bau Portal

Construction method and structure of fixing cantilevered I beam by foam

LAN JIADING / HUANG JIBIN / SHI XIAOQING / CHEN YEWEI

The invention discloses a construction method and a structure of fixing a cantilevered I beam by foam. The construction method comprises the following steps of first, inserting the cantilevered I beaminto an I-shaped notch of a foam pup joint; then arranging the cantilevered I beam sleeved with the foam pup joint on a structural plate according to a construction scheme demand; after the cantilevered I beam is arranged, mounting a reinforcing steel bar and a template of a shear wall and carrying out pouring of concrete of the shear wall; forming a construction structure of fixing the cantilevered I beam by foam after pouring of concrete of the shear wall, wherein the construction structure of fixing the cantilevered I beam by foam is reserved till an outer rack removal stage; eliminating the foam pup joint first; then pulling out the I beam after elimination; scabbing concrete holes left by eliminating the pup joint; and then plugging the holes by concrete. The construction method is simple in construction operation, a customized foam member is small in dimension, light in weight and quite convenient for field work operation, a problem of leakage of grout in a conventional processcan be reduced, and the concrete pouring quality around a connector is improved.

本发明公开了一种悬挑工字钢泡沫固定的施工方法及结构，本发明是先将悬挑工字钢插入泡沫短节的工字形槽口内，再将套有泡沫短节的悬挑工字钢按施工方案要求在结构板上进行排布，悬挑工字钢排布好后，再进行剪力墙钢筋、模板安装，并进行剪力墙混凝土浇筑，剪力墙混凝土浇筑完成后即形成本发明的悬挑工字钢泡沫固定施工结构。该悬挑工字钢泡沫固定结构一直保留到外架拆除阶段，拆除时先进行泡沫短节的清除，清除后拔除工字钢，并将清除泡沫短节后留下的混凝土孔洞凿毛，再用混凝土将孔洞封堵即可。本发明施工操作简便，定制泡沫构件尺寸小，重量轻，非常便于现场工作操作，并能减少传统工艺中的漏浆问题，提高接口周边混凝土浇筑质量。

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