论文部分内容阅读
一、前言在我国的工业及民用建筑中,装配式钢筋混凝士柱的应用范围已获得了很大发展。但对某些大型厂房或公共建筑内重型钢筋混凝土柱,因受起重安装能力的限制,多采用现浇方式或将柱体分成数段预制,再用各种形式的埠接接头联结。以上二种方法都有较大缺点。现浇钢筋混凝土柱需要消耗大量木模,施工现场工作量大,进度迟缓,不符合工厂化生产及快速施工的原则。此外,对施工质量也很难保证,特别是高度为20一30M的重型柱子,由于木模板及木支撑架刚度较小,容易变形,因之柱的
I. Preface In China’s industrial and civil buildings, the scope of the application of reinforced concrete column has been greatly developed. However, in some large-scale workshops or heavy-duty reinforced concrete columns in public buildings, due to the limitation of lifting installation capacity, the method of in-situ pouring is adopted or the columns are divided into several sections to be prefabricated and then connected by various forms of port joints. The above two methods have larger disadvantages. Cast-in-place reinforced concrete columns need to consume a large number of wood mold, the construction site workload, slow progress, does not meet the factory production and rapid construction of the principle. In addition, the construction quality is also very difficult to guarantee, especially the height of 20-30M heavy columns, due to the rigidity of wooden formwork and wood support frame is small, easy to deform, because the column