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基于现行施工规范模板结构方案的比选及验算

发表时间:2013-07-31  浏览量:1017  下载量:478
全部作者: 杨国立,李瑞鸽
作者单位: 台州学院建筑工程学院
摘 要: 《混凝土结构工程施工规范》(GB 50666-2011)模板工程中的荷载标准值选取、新浇筑混凝土对模板侧面的压力等部分与旧规范规定有很大的差异。依据新规范规定,结合某现浇混凝土结构的现浇板的模板系统进行实例验算,首先对工具式钢模板配板方案进行比选,选取模板规格及块数尽量少、错缝排列、刚性好的方案;其次计算出每平方米支撑面模板荷载标准值,对模板结构的内钢楞进行抗弯验算、抗剪验算和挠度验算,对立杆进行长细比验算、轴心受压强度验算和轴心受压稳定性验算。研究为施工单位进行模板的方案设计提供了新的思路及案例模型。
关 键 词: 土木建筑工程施工;施工规范;模板及支架;钢模板配板
Title: Comparison and checking calculation of formwork structure scheme based on the current construction specification
Author: YANG Guoli, LI Ruige
Organization: School of Civil Engineering and Architecture, Taizhou University
Abstract: The selection of load standard value, the pressure of young concrete on the side of formwork and others about formwork engineering in the “Code for Construction of Concrete Structures” (GB 50666—2011) are very different from the old specification. According to the new specification, combining with the slab formwork system of a cast-in-situ concrete structure, this paper presents an instance checking calculation. Firstly, the tool-type steel form matching board schemes are selected and compared, the scheme with the minimized number of forms, the arranged staggered joints, and the good rigidity are selected. Secondly, the formwork load standard value per square meter of support surface is calculated, the bending resistance checking, shearing resistance checking and deflection checking of inner steel arris of the formwork structure are carried out. The slenderness ratio checking, axial compressive strength checking and axial compression stability checking of pole are also done. The study provides a new thinking and case model of formwork scheme design for construction organization.
Key words: civil engineering construction; construction specification; formwork and support; steel form matching board
发表期数: 2013年7月第14期
引用格式: 杨国立,李瑞鸽. 基于现行施工规范模板结构方案的比选及验算[J]. 中国科技论文在线精品论文,2013,6(14):1313-1317.
 
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