大底盘多塔楼结构抗震性能研究
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摘要
大底盘多塔楼结构是底部相连上部分开的一种复杂结构形式。本工程由于立面收进要求采用竖向搭接转换块,目前对竖向搭接转换的结构研究不够充分全面。针对竖向搭接转换的结构形式,进行模拟地震整体结构振动台试验,并利用MIDAS软件进行整体结构分析。结果表明,采取搭接块的结构竖向刚度均匀,没有形成软弱层;大底盘与塔楼交界处的剪力突变,应采取适当的加强;裙房底部柱子应采取适当加强措施。
A Multi-tower structure with large podium is a complex structure form which is connected at the bottom and departed at the top.The engineering in this paper adopts the vertical overlapping transitional block because of the requirement of the setback in elevation.However,the vertical overlapping transitional block is not fully studied at present.To study the structural form with the vertical overlapping transitional block,a shaking table test has been done and numerical analysis by the software MIDAS has been accomplished.The results show that the structure with the overlapping block has uniform vertical stiffness and doesn' t have the soft layer.Some measures should be taken to strengthen the roof of the podium according to the shear force abrupt change.The columns of the podium should be strengthened properly.
A Multi-tower structure with large podium is a complex structure form which is connected at the bottom and departed at the top.The engineering in this paper adopts the vertical overlapping transitional block because of the requirement of the setback in elevation.However,the vertical overlapping transitional block is not fully studied at present.To study the structural form with the vertical overlapping transitional block,a shaking table test has been done and numerical analysis by the software MIDAS has been accomplished.The results show that the structure with the overlapping block has uniform vertical stiffness and doesn' t have the soft layer.Some measures should be taken to strengthen the roof of the podium according to the shear force abrupt change.The columns of the podium should be strengthened properly.
引文
[1]徐培福,傅学怡,王翠坤,肖从真.复杂高层建筑结构设计[M].北京:中国建筑工业出版社,2005. Xu P F,Fu X Y,Wang C K,Xiao C Z.Design of complex high-rise structures[M].Beijing:China Architecture & Building Press,2005(in Chinese).
[2]徐培福,傅学怡,耿娜娜,等.搭接柱转换结构的试验研究与设计要点[J].建筑结构,2003,33(12): 3-7. Xu P F,Fu X Y,Geng N N.The research of experiment and design points of the structure with transfer ??bracket[J].Building Structure,2003,33(12 ):3-7 (in Chinese).
[3]顾磊,傅学怡.福建兴业银行大厦搭接柱转换结构有限元分析和预应力策略[J].建筑结构,2003, 33(12):13-16. Gu L,Fu X Y.The analysis of the FEM and method of the pre-stressing of the lapping column transfer structure in Fujian Industrial Bank[J].Building Structure, 2003,33(12):13-16(in Chinese).
[4]傅学怡,雷康儿,杨想兵,等.福建兴业银行大厦搭接柱转换结构研究应用[J].建筑结构,2003,33 (12):8-12. Fu X Y,Lei K G,Yang X B.The research and application of structure with transfer bracket in Fujian Industrial Bank[J].Building Structure,2003,33(12 ): 8-12(in Chinese).
[5]周颖,卢文胜,吕西林.模拟地震振动台模型实用设计方法[J].结构工程师,2003,3:30-38. Zhou Y,Lu W S,LU X L.Practical Model Design Method of Shaking Table Tests[J].Structural Engineers, 2003,3:30 -38(in Chinese).
[6]JGJ 3—2002高层建筑混凝土结构技术规程[S]. JGJ 3—2002 Technical specification for concrete structures of tall building[S](in Chinese).
[7]同济大学土木工程防灾国家重点实验室.上海黄浦区174街坊项目2#～3#楼模拟地震振动台试验研究报告[R].上海:同济大学,2010. State Key Laboratory of Disaster Reduction in Civil Engineering,Tongji University.Shaking table model test of building with 2&3 towers of NO.174 block in HuangPu District of Shanghai City[R].Shanghai: Tongji University,2010(in Chinese ).
[2]徐培福,傅学怡,耿娜娜,等.搭接柱转换结构的试验研究与设计要点[J].建筑结构,2003,33(12): 3-7. Xu P F,Fu X Y,Geng N N.The research of experiment and design points of the structure with transfer ??bracket[J].Building Structure,2003,33(12 ):3-7 (in Chinese).
[3]顾磊,傅学怡.福建兴业银行大厦搭接柱转换结构有限元分析和预应力策略[J].建筑结构,2003, 33(12):13-16. Gu L,Fu X Y.The analysis of the FEM and method of the pre-stressing of the lapping column transfer structure in Fujian Industrial Bank[J].Building Structure, 2003,33(12):13-16(in Chinese).
[4]傅学怡,雷康儿,杨想兵,等.福建兴业银行大厦搭接柱转换结构研究应用[J].建筑结构,2003,33 (12):8-12. Fu X Y,Lei K G,Yang X B.The research and application of structure with transfer bracket in Fujian Industrial Bank[J].Building Structure,2003,33(12 ): 8-12(in Chinese).
[5]周颖,卢文胜,吕西林.模拟地震振动台模型实用设计方法[J].结构工程师,2003,3:30-38. Zhou Y,Lu W S,LU X L.Practical Model Design Method of Shaking Table Tests[J].Structural Engineers, 2003,3:30 -38(in Chinese).
[6]JGJ 3—2002高层建筑混凝土结构技术规程[S]. JGJ 3—2002 Technical specification for concrete structures of tall building[S](in Chinese).
[7]同济大学土木工程防灾国家重点实验室.上海黄浦区174街坊项目2#～3#楼模拟地震振动台试验研究报告[R].上海:同济大学,2010. State Key Laboratory of Disaster Reduction in Civil Engineering,Tongji University.Shaking table model test of building with 2&3 towers of NO.174 block in HuangPu District of Shanghai City[R].Shanghai: Tongji University,2010(in Chinese ).
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