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目前,在上海地区多层住宅施工中,根据设计规定,要求将墙体工程圈梁由预制圈梁改为现浇圈梁。为了适应这一要求,八三年初我公司在八○四队施工的三钢商店工程中对二种形式的专用工具式的硬架支模进行了试验。又在上钢新村的三号房中试用了“脚手用钢管”组合而成的承重钢模板体系,也有二种形式。经过这一阶段的试验与使用,取得了一些技术数据、确定和统一了施工工艺、同时亦肯定了支模的两种形式——槽钢专用工具式和钢管组成型式。现将这些形式的试验与施工中的一些情况叙述如下:
Currently, in the construction of multi-storey residential buildings in Shanghai, according to the design regulations, it is required that the wall engineering beam be changed from a precast ring beam to a cast-in-place ring beam. In order to adapt to this requirement, in early 1983, our company conducted two kinds of special tool-style hard frame support molds in the steel shop construction project of the 804 team. In addition, in the No. 3 house of the Shanggang New Village, a steel bearing steel formwork system consisting of a combination of “foot steel pipes” has also been used. After this stage of trials and use, some technical data were obtained, and the construction process was determined and unified. At the same time, two forms of support molds, channel-specific tool type and steel pipe composition type, were also confirmed. Some of these forms of test and construction are described below: