整体爬升钢平台模架装备筒架支撑系统在不均匀竖向荷载作用下的承载性能研究
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- 英文论文题名：Study on the Bearing Capacity of the Framed-tube Supporting System Structure in the Self-climbing Formwork and Scaffolding Equipment with Integrated Steel Platform Under Non-uniform Vertical Loads
- 论文作者：王小安
- 英文论文作者：WANG Xiao'an ; Shanghai Construction Group Co. ; Ltd
- 年：2017
- 作者机构：上海建工集团股份有限公司;
- 论文关键词：钢平台 ; 模架装备 ; 筒架支撑系统 ; 极限承载力 ; 局部稳定
- 英文论文关键词：steel platform ; formwork and scaffolding equipment ; framed-tube supporting system ; ultimate capacity ; local stability
- 会议召开时间：2017-05-18
- 会议录名称：全国模板脚手架工程创新技术交流会论文集
- 语种：中文
- 分类号：TU974
- 学会代码：SGJS
- 会议名称：全国模板脚手架工程创新技术交流会
- 会议地点：中国北京
- 主办单位：中国建设科技集团股份有限公司、中国建筑学会工程建设学术委员会、昌宜（天津）模板租赁有限公司、《施工技术》杂志社
- 学会名称：施工技术编辑部
- 页数：6
- 文件大小：1723k
- 原文格式：O
- 会议级别：全国
摘要
在整体爬升钢平台模架装备施工作业阶段,筒架支撑系统是关键承力系统,其各个筒架支撑结构与筒架支撑柱承受不均匀竖向荷载是一种常见状态。本文针对筒架支撑系统在竖向不均匀荷载作用下的弹性屈曲性能与弹塑性极限承载力进行分析。针对各筒架支撑单元承受不均匀荷载的情况,研究建议,将筒架支撑单元的受力均匀化,假定昕有筒架支撑单元都承受受力最大的筒架支撑单元昕承受的轴力,是偏于安全的处理方式;针对各筒架支撑柱承受不均匀荷载的情况,研究建议,在验算筒架支撑单元整体稳定的基础上,增加对筒架支撑柱局部稳定性的验算。
As the self-climbing formwork and scaffolding equipment with integrated steel platform is used in the concrete structure work.The framed-tube supporting system is a key structure,while the framed-tube supporting parts and columns in the system are normally bearing non-uniform vertical loads.It is suggested for the situation that the framed-tube supporting parts are non-uniformly loaded,all supporting parts will bear the same amount of vertical loads as the maximum load,which can lead to a safe result.It is also suggested for the situation that all the supporting columns are non-uniformly loaded,the local stability of the columns should be calculated on the basis of the verification to the overall stability of the framed-tube parts.
As the self-climbing formwork and scaffolding equipment with integrated steel platform is used in the concrete structure work.The framed-tube supporting system is a key structure,while the framed-tube supporting parts and columns in the system are normally bearing non-uniform vertical loads.It is suggested for the situation that the framed-tube supporting parts are non-uniformly loaded,all supporting parts will bear the same amount of vertical loads as the maximum load,which can lead to a safe result.It is also suggested for the situation that all the supporting columns are non-uniformly loaded,the local stability of the columns should be calculated on the basis of the verification to the overall stability of the framed-tube parts.
引文
[1]龚剑,朱毅敏,徐磊.超高层建筑核心筒结构施工中的筒架支撑式液压爬升整体钢平台模架技术[J].建筑施工,2014,36(1):33-38.
[2]王小安,梁颖元,李阳,等.筒架与筒架交替支撑式液压爬升整体钢平台模架设计计算分析[J].建筑施工,2014,36(4):383-389.
[3]扶新立,马静,秦鹏飞.筒架支撑式液压爬升整体钢平台的模架安装[J].建筑施工,2014,36(1):39-42.
[4]龚剑,李增辉,施雯钰,等.整体钢平台模架装备液压同步顶升性能分析[J].建筑施工,2014,36(4):378-382.
[5]王小安.整体爬升钢平台模架体系中的筒架支撑系统结构弹性屈曲性能分析[J].建筑施工,2016,38(1):62-65.
[6]钢结构设计规范:GB 50017—2003[S].北京:中国计划出版社,2003.
[2]王小安,梁颖元,李阳,等.筒架与筒架交替支撑式液压爬升整体钢平台模架设计计算分析[J].建筑施工,2014,36(4):383-389.
[3]扶新立,马静,秦鹏飞.筒架支撑式液压爬升整体钢平台的模架安装[J].建筑施工,2014,36(1):39-42.
[4]龚剑,李增辉,施雯钰,等.整体钢平台模架装备液压同步顶升性能分析[J].建筑施工,2014,36(4):378-382.
[5]王小安.整体爬升钢平台模架体系中的筒架支撑系统结构弹性屈曲性能分析[J].建筑施工,2016,38(1):62-65.
[6]钢结构设计规范:GB 50017—2003[S].北京:中国计划出版社,2003.