2013年2月上 施工技术 第42卷第3期 CONSTRUCTION TECHNOLOGY 37 D0I:10.7672/sgjs2013030037 某大型公共场馆抽柱改造工程设计与施工* 李果，袁珊珊，杜健民 (中国矿业大学江苏省土木工程环境灾变与结构可靠性重点实验室，江苏徐州221116) [摘要]为满足某大型公共场馆的使用要求，需要对位于中轴线上的3根钢筋混凝土柱进行拆除，此举将使大梁的 最大跨度从12m增大到24m.在考虑结构整体性能以及抗展性能的基础上，综合采取了增设支点柱、增大断面加 固梁和粘贴碳纤维布的改造方案，同时采取了先改造加固后拆除柱的施工方案.施工安全监测结果表明：柱拆除 后，梁、柱的应力进行了重分配，结构的整体挠度变形很小，结构的改造和加固是安全的. [关键词]改造工程；抽柱；加固；设计；施工 [中图分类号]TU746.3 [文献标识码]A [文章编号]1002-8498(2013)03-0037-04 Design and Construction of Column-removed Retrofit Project for Some Large Public Building Li Guo Yuan Shanshan Du Jianmin Jiangsu Key Laboratory of Environmental Impact and Structural Safety in Engineering of China University of Mining Technology Xushou Jiangsu 221116 China Abstract:To satisfy the function requirements of a large public building three reinforced concrete columns on the central axis need to be removed which caused the largest span of transverse beams to increase from 12m to 24m.Considering the structural integrity and seismic resistance a retrofitting scheme was adopted which included providing additional supporting columns enlarging beams section and strengthening with carbon fiber sheets.During the construction all the retrofitting and strengthening work were finished before the columns were removed.The construction safety monitoring shows that stress redistribution occurred to the columns and beams after columns removal.The overall deflection of structure was subjected to little change which indicates that the retrofitted structure is safe. Key...
某大型公共场馆抽柱改造工程设计与施工.pdf
