影城改造抽柱技术分析研究  

Analysis and research on the technology of column withdrawing in the modification of cinemas

作　　者：邹红 李延和[1] 单庆惠 ZOU Hong;LI Yanhe;SHAN Qinghui(College of Civil Engineering,Nanjing University of Technology,Nanjing 211816,China;Greentown Oriental Construction Management Co.,Ltd,Nanjing 211019,China)

机构地区：[1]南京工业大学土木工程学院,江苏南京211816 [2]绿城东方建设管理有限公司,江苏南京211019

出　　处：《苏州科技大学学报（工程技术版）》2018年第2期45-49,共5页Journal of Suzhou University of Science and Technology（Engineering and Technology Edition）

摘　　要：随着电影行业的发展,人们对电影院的布置和观影效果的要求越来越高,为了满足现代影院巨幕的安装需求,往往通过抽柱改造对原结构的使用空间进行扩大,抽柱扩跨改造的托换方法很多,文章系统介绍预应力混凝土托梁法、体内外同索预应力托换法、钢桁架托梁法这三种托换方法,并对比分析各方法的优缺点及适用性。并结合工程实例应用,给出具体的典型抽柱拆除加固法预应力混凝土托梁法的截面计算及承载力的验算过程。With the development of the film industry, the layout and viewing effect of the cinema are playing a more and more important role for those who watch movies. In order to meet the installation of large and modern cinema screens, the space of the original structure of cinema is often expanded by withdrawing columns from the buildings. There are many replacements of column withdrawing and span enlargement, but this paper introduces three of them including the prestressed concrete transfer beam, prestressed concrete structures with the same ten-don in internal and external, and steel trimmer truss beam, and the advantages and disadvantages of the methods are compared. Combining with application of engineering examples, the paper presents the checking process of section calculation and bearing capacities of column-removal retrofit technology and the prestressed concrete transfer beam.

关 键 词：影城改造 抽柱托换 预应力混凝土托梁法 体内外同索预应力托换法 钢桁架托梁法 

分 类 号：TU378[建筑科学—结构工程]