拆模工序对沈阳文化艺术中心音乐厅缓黏结预应力结构内力变形的影响
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摘要
为了探明模架拆除对复杂大空间大悬挑结构内力及变形的影响,对沈阳文化艺术中心音乐厅结构进行施工阶段有限元分析。在分析中,考虑了混凝土、钢束等材料的时效性能,利用"生死技术"设计了4个拆模阶段、6种拆模方案,考察各拆模方案、拆模阶段对音乐厅结构变形、关键构件的混凝土及钢束的应力分布。分析结果表明:1虽然各方案模架拆除顺序不同,但最终状态下音乐厅的变形最大位移均出现在屋顶悬挑端部;2当拆除23.2 m悬挑区域模架时,对音乐厅结构的变形变化、混凝土应力分布以及钢束有效应力变化具有较大影响;3当拆除屋顶非悬挑区域模架时,方案一、方案三和方案五音乐厅悬挑端均出现向上翘曲的变形;4建议采用二、四或六拆模方案进行施工。
In order to ascertain the effect of form removal on the internal force and deformation of complex large space and long cantilever structure,finite element analysis of the concert hall structure of Shenyang culture art center is carried out. In the analysis,the temporal effectiveness of materials such as concrete and steel cableis considered,four stripping construction process and six stripping construction plans are designed in the usage of "life and death technology". The result indicates as follows 1) The maximum displacement of the concert hall all eventually occurred at the cantilever of the roof regardless of the order of form removal in different plans; 2) Stripping cantilever formwork at 23. 2 meter has great effect on the deformation,distribution stress of concrete and effective stress of steel cable of concert hall; 3) The upward deformation occurred at the cantilever of concert hall while stripping roof non- cantilever formwork in plan 1,plan 3 and plan 5; 4) It is recommended that plan2( or plan4 and plan 6) in the construction.
In order to ascertain the effect of form removal on the internal force and deformation of complex large space and long cantilever structure,finite element analysis of the concert hall structure of Shenyang culture art center is carried out. In the analysis,the temporal effectiveness of materials such as concrete and steel cableis considered,four stripping construction process and six stripping construction plans are designed in the usage of "life and death technology". The result indicates as follows 1) The maximum displacement of the concert hall all eventually occurred at the cantilever of the roof regardless of the order of form removal in different plans; 2) Stripping cantilever formwork at 23. 2 meter has great effect on the deformation,distribution stress of concrete and effective stress of steel cable of concert hall; 3) The upward deformation occurred at the cantilever of concert hall while stripping roof non- cantilever formwork in plan 1,plan 3 and plan 5; 4) It is recommended that plan2( or plan4 and plan 6) in the construction.
引文
[1]王光远.论时变结构力学[J].土木工程学报,2000,33(6):105-108.Wang Guangyuan.On mechanics of time-varying structures[J].China Civil Engineering Journal,2000,33(6):105-108.(in Chinese)
[2]曹志远.土木工程分析的施工力学与时变力学基础[J].土木工程学报,2001,34(3):41-46.Cao Zhiyuan.Construction mechanics and time-varying mechanics in civil engineering[J].China Civil Engineering Journal,2001,34(3):41-46.(in Chinese)
[3]秦杰,王泽强,张然,等,2008奥运会羽毛球馆预应力施工监测研究[J].建筑结构学报,2007,28(6):83-91.Qin Jie,Wang Zeqiang,Zhang Ran,et al.Study on pre-stress construction monitoring of the badminton gymnasium for 2008 Olympic Games[J].Journal of Building Structures,2007,28(8):83-91.(in Chinese)
[4]汪大绥,姜文伟,包联进,等,CCTV新台址主楼施工模拟分析及应用研究[J].建筑结构学报,2008,29(3):104-110.Wang Dasui,Jiang Wenwei,Bao Lianjin,et al.,Staged construction analysis and application research on New CCTV Building[J].Journal of Building Structures,2008,29(3):104-110.(in Chinese)
[5]刘红波,陈志华,牛犇.弦支穹顶结构施工过程数值模拟及施工监测[J].建筑结构学报,2012,33(12):79-84+129.Liu Hongbo,Chen Zhihua,Niu Ben.Numerical simulation and in-situ monitoring of pre-stressing construction of suspen-dome structures[J].Journal of Building Structures,2012,33(12):79-84+129.(in Chinese)
[6]赖寒,何志军,丁洁民.上海中心大厦考虑施工过程的竖向变形及差异分析与研究[J].结构工程师,2011,27(6):14-21.Lai Han,He Zhijun,Ding Jieming.Analysis and research of deformation difference of Shanhai Tower considering contruction process[J].Structural Engineers,2011,27(6):14-21.(in Chinese)
[7]任瑞,刘冰.超高层混合结构考虑施工过程的竖向变形差异计算和分析[J].结构工程师,2013,29(2):56-62.Ren Rui,Liu Bing.Calculation and analysis of vertical deformation difference of super high-rise hybrid structures considering contruction process[J].Structural Engineers,2013,29(2):56-62.(in Chinese)
[8]赵建昌,李永和,王起才.新型缓粘结预应力体系试验研究[J].建筑结构学报,2006,26(2):52-59.Zhao Jianchang,Li Yonghe,Wang Qicai.Experimental research on a new type of bond-retarded prestressed system[J].Journal of Building Structures,2005,26(2):52-59.(in Chinese)
[9]朱保兵,林颖儒,徐晓明,等.沈阳文化艺术中心结构设计关键技术研究[J].建筑结构,2012,42(S1):368-371.Zhu Baobing,Lin Yinru,Xu Xiaoming,et al.,Study on the key technologies of structural design of Shenyang Culture and Art Center[J].Building structure,2012,42(S1):368-371.(in Chinese)
[10]中华人民共和国交通部JTGD 62—2004公路钢筋混凝土及预应力混凝土桥涵设计规范[S].北京:人民交通出版社,2004.Ministry of Commuricotions of people’s Republic of China JTGD 62—2004 Code for design of highway reinforced concrete and prestressed concrete bridge and culverts[S].Beijing:China Connunications Press,2004.(in Chinese)
[11]社団法人日本道路協会.道路橋示方書·同解説Ⅲコンクリート橋編[M].2002Japan Road Association.Specifications for highway bridges partⅢconcrete bridges[M].2002(in Japanese)
[12]中华人民共和国信房部和城乡建设部.JGJ 162—2008建筑施工模板安全技术规范[S].北京:中国建筑工业出版社,2008.Ministry of Housing and Urban-Rural Deuelopment of the People’s Repubtic of China.JGJ 162—2008Technical code for safety of forms in constructions[S].Beijing:China Architecture and Building Prtss,2008.(in Japanese)
[2]曹志远.土木工程分析的施工力学与时变力学基础[J].土木工程学报,2001,34(3):41-46.Cao Zhiyuan.Construction mechanics and time-varying mechanics in civil engineering[J].China Civil Engineering Journal,2001,34(3):41-46.(in Chinese)
[3]秦杰,王泽强,张然,等,2008奥运会羽毛球馆预应力施工监测研究[J].建筑结构学报,2007,28(6):83-91.Qin Jie,Wang Zeqiang,Zhang Ran,et al.Study on pre-stress construction monitoring of the badminton gymnasium for 2008 Olympic Games[J].Journal of Building Structures,2007,28(8):83-91.(in Chinese)
[4]汪大绥,姜文伟,包联进,等,CCTV新台址主楼施工模拟分析及应用研究[J].建筑结构学报,2008,29(3):104-110.Wang Dasui,Jiang Wenwei,Bao Lianjin,et al.,Staged construction analysis and application research on New CCTV Building[J].Journal of Building Structures,2008,29(3):104-110.(in Chinese)
[5]刘红波,陈志华,牛犇.弦支穹顶结构施工过程数值模拟及施工监测[J].建筑结构学报,2012,33(12):79-84+129.Liu Hongbo,Chen Zhihua,Niu Ben.Numerical simulation and in-situ monitoring of pre-stressing construction of suspen-dome structures[J].Journal of Building Structures,2012,33(12):79-84+129.(in Chinese)
[6]赖寒,何志军,丁洁民.上海中心大厦考虑施工过程的竖向变形及差异分析与研究[J].结构工程师,2011,27(6):14-21.Lai Han,He Zhijun,Ding Jieming.Analysis and research of deformation difference of Shanhai Tower considering contruction process[J].Structural Engineers,2011,27(6):14-21.(in Chinese)
[7]任瑞,刘冰.超高层混合结构考虑施工过程的竖向变形差异计算和分析[J].结构工程师,2013,29(2):56-62.Ren Rui,Liu Bing.Calculation and analysis of vertical deformation difference of super high-rise hybrid structures considering contruction process[J].Structural Engineers,2013,29(2):56-62.(in Chinese)
[8]赵建昌,李永和,王起才.新型缓粘结预应力体系试验研究[J].建筑结构学报,2006,26(2):52-59.Zhao Jianchang,Li Yonghe,Wang Qicai.Experimental research on a new type of bond-retarded prestressed system[J].Journal of Building Structures,2005,26(2):52-59.(in Chinese)
[9]朱保兵,林颖儒,徐晓明,等.沈阳文化艺术中心结构设计关键技术研究[J].建筑结构,2012,42(S1):368-371.Zhu Baobing,Lin Yinru,Xu Xiaoming,et al.,Study on the key technologies of structural design of Shenyang Culture and Art Center[J].Building structure,2012,42(S1):368-371.(in Chinese)
[10]中华人民共和国交通部JTGD 62—2004公路钢筋混凝土及预应力混凝土桥涵设计规范[S].北京:人民交通出版社,2004.Ministry of Commuricotions of people’s Republic of China JTGD 62—2004 Code for design of highway reinforced concrete and prestressed concrete bridge and culverts[S].Beijing:China Connunications Press,2004.(in Chinese)
[11]社団法人日本道路協会.道路橋示方書·同解説Ⅲコンクリート橋編[M].2002Japan Road Association.Specifications for highway bridges partⅢconcrete bridges[M].2002(in Japanese)
[12]中华人民共和国信房部和城乡建设部.JGJ 162—2008建筑施工模板安全技术规范[S].北京:中国建筑工业出版社,2008.Ministry of Housing and Urban-Rural Deuelopment of the People’s Repubtic of China.JGJ 162—2008Technical code for safety of forms in constructions[S].Beijing:China Architecture and Building Prtss,2008.(in Japanese)