大跨度钢筋桁架楼承板吊挂支撑施工技术

Construction Technology of Hanging Support for Large-span Reinforced Truss Floor Bearing Plate

部分跨度过大需要底部支撑的楼承板的施工,往往受制于下层楼板混凝土的浇筑进度和混凝土的强度。当下层楼板混凝土浇筑进度和强度无法满足上层大跨度钢筋桁架楼承板的回顶支撑施工条件时,可采用在上层楼板大跨度钢筋桁架楼承板跨中增加支撑钢梁或支撑角钢,但此做法施工工序繁琐,难度较大,成本高且资源浪费较多。

The construction of some floor bearing plates with too large span and bottom support to be needed is often restricted by pouring progress of lower floor concrete and strength of concrete.When concrete pouring progress and strength of the lower floor slab cannot meet construction conditions of roof support of upper long-span reinforced truss floor support plate,supporting steel beam or supporting angle steel can be added in middle of the upper floor slab long-span reinforced truss floor support plate span,but the method has cumbersome construction procedures,great difficulty,high cost and more waste of resources.