期刊文献+

施工阶段多(高)层建筑钢筋混凝土结构统一模型 被引量:10

Unified model of reinforced concrete structures of multi-story or high-rise buildings during construction
原文传递
导出
摘要 为便于现场施工组织和安全检验,针对多(高)层建筑混凝土结构施工阶段,建立了一个包含了基础刚度与施工模板支撑薄弱层参数的统一模型。分析结果表明,建筑底部楼层承担的施工荷载随基础刚度降低而增大,当基础刚度降低到相当于0.5倍楼板厚度时,最大施工荷载比率会超过刚性基础条件下的最大施工荷载比率约3.2%;施工模板支撑薄弱层导致其上楼板承担的施工荷载增大,其下楼板承担的施工荷载减小,变化幅度约4.3%。因此,施工阶段必须考虑到基础刚度与模板支撑薄弱层。 A unified model was developed to organize construction conveniently and check safety of the structures in site for reinforced concrete structures of multi-story or high-rise buildings. The model accounted for stiffness of the foundation and the insufficient level shores. Analyzing results show that the loads on the lowest several slab levels in the buildings will increase with decreasing foundation stiffness for some types of construction schedules, and may even exceed the maximum slab load. When the stiffness of foundation is decreased to 0.5 times thickness of the slab, and the maximum slab load will be over the maximum slab load of the rigid foundation by as much as 3.2%; the insufficient level shores will increase loads on the slab and reduce the loads under the slab by as much as 4.3%. Consequently, foundation stiffness and insufficient level shores should be taken into account during construction.
出处 《清华大学学报(自然科学版)》 EI CAS CSCD 北大核心 2004年第12期1680-1683,共4页 Journal of Tsinghua University(Science and Technology)
基金 国家自然科学基金资助项目(50378051) 中国博士后科学基金资助项目(2003033159) 教育部优秀青年教师资助计划项目
关键词 房屋建筑 混凝土结构 施工 基础刚度 薄弱层支撑 building concrete structures construction processes foundation stiffness insufficient level shores
  • 相关文献

参考文献11

  • 1Neilsen K.Load on Reinforced Concrete Floor Slabs and Their Deformation During Construction [R].Bulletin No.15 Final Report,Swedish Cement and Concrete Research Institute,Royal Institute of Technology,Stockholm,1952.
  • 2Grundy P,Kabaila A.Construction loads on slabs with shored formwork in multistory buildings [J].ACI J Struc Eng,1963,60(12): 1729-1738.
  • 3Agarwal R K,Gardner N J.Form and shore requirements for multistory buildings [J].ACI J Struc Eng,1974,71(11): 559-569.
  • 4LIU Xila,CHEN Wai-Fah,Bowman M D.Construction load analysis for concrete structures [J].ASCE,J Struc Eng,1985,111(5): 1019-1036.
  • 5Chen W F,Mosallam K H.Concrete buildings analysis for safe construction [M].CRC Press,1991.
  • 6Stivaros R C,Halvorsen G T.Equivalent frame analysis of concrete buildings during construction [J].Concrete International ACI,1991,13(8): 57-62.
  • 7FANG Dongping,GENG Chuandong,ZHU Hongyi,et al.Floor load distribution in reinforced concrete buildings during construction [J].ACI,J Struc,2001,98(2): 149-156.
  • 8DUAN Mingzhu,CHEN Wai-Fah.Improved simplified method for slab and shore load analysis during construction [R].CE-STR-95-24,Purdue: Purdue University,1995.
  • 9方东平,张传敏,赵挺生.基于特征参数的施工期钢筋混凝土建筑结构分析模型[J].清华大学学报(自然科学版),2003,43(10):1373-1375. 被引量:7
  • 10李瑞礼,曹志远.结构工程施工分析的材料时变效应[J].同济大学学报(自然科学版),2003,31(8):926-930. 被引量:10

二级参考文献20

共引文献187

同被引文献54

引证文献10

二级引证文献22

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部