中洲二期观光门架结构设计
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摘要
广州中洲二期观光门工程整体结构属于体型复杂的超限结构。结合结构设计理念,在设计中采用了基于性能的抗震设计方法,利用多种分析手段验证不同水准下结构的抗震性能,包括小震弹性验算、中震弹性及中震不屈服构件验算,以及罕遇地震下的弹塑性时程分析。参考振动台试验,提出合理的结构抗震设计措施。同时,根据工程的风洞试验结果进行不同风向角下的风振时程分析,进行合理的结构抗风设计。还研究了粘滞阻尼器的设置对结构在内力、变形、加速度及能量方面的控制效果。通过以上及结构整体稳定、温度效应、楼板振动等大量计算分析,提出了相应的超限设计措施,使结构能够更好地实现预定的性能目标。
Zhongzhou Phase Ⅱ Project is an ultra-limit structure with hybrid structure system and complicated structural shape.Design idea of performance based seismic design was presented.Seismic performance of the structure under different levels of ground motion was analyzed and verified by different methods,such as elastic analysis under frequent earthquake,un-yield and elastic verification of structure element under medium earthquake and inelastic dynamic time-history analysis under rare earthquake.Taking results of shaking table test as reference,reasonable enhance measures of seismic design were suggested.Meanwhile,wind-induced vibration time-history analysis under different wind directions based on wind tunnel test was applied and comfort problem can be well resolved.The control effects of vicious dampers on inter force,deformation,acceleration and energy dissipation of the structure were also studied.By means of analysis methods mentioned above and other plenty analysis of the whole structure stability,temperature effect,floor vibration and so on,relevant measures of ultra-structure design were suggested and the performance objective of the structure can be well realized.
Zhongzhou Phase Ⅱ Project is an ultra-limit structure with hybrid structure system and complicated structural shape.Design idea of performance based seismic design was presented.Seismic performance of the structure under different levels of ground motion was analyzed and verified by different methods,such as elastic analysis under frequent earthquake,un-yield and elastic verification of structure element under medium earthquake and inelastic dynamic time-history analysis under rare earthquake.Taking results of shaking table test as reference,reasonable enhance measures of seismic design were suggested.Meanwhile,wind-induced vibration time-history analysis under different wind directions based on wind tunnel test was applied and comfort problem can be well resolved.The control effects of vicious dampers on inter force,deformation,acceleration and energy dissipation of the structure were also studied.By means of analysis methods mentioned above and other plenty analysis of the whole structure stability,temperature effect,floor vibration and so on,relevant measures of ultra-structure design were suggested and the performance objective of the structure can be well realized.
引文
[1]韩小雷,郑宜,何伟球,等.中洲二期工程观光门架结构可行性报告[R].广州:华南理工大学高层建筑结构研究所,2009.
[2]GB50009—2001建筑结构荷载规范[S].北京:中国建筑工业出版社,2002.
[3]GB50011—2001建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.
[4]广州市中洲广场二期工程场地地震安全性评价报告[R].广州:广东省地震工程实验中心,2007.
[5]中洲中心二期项目模型模拟地震振动台试验研究报告[R].广州:广州大学工程抗震研究中心,2008.
[6]韩小雷,陈学伟,林生逸,等.基于纤维模型的超高层钢筋混凝土结构弹塑性时程分析及工程应用[J].建筑结构,2010,40(2):13-16.
[7]谢壮宁,石碧青.广州中洲观光门风荷载特征风洞试验数据图表[R].汕头:汕头大学大气边界层风洞实验室,2008.
[8]ASCE/SEC41-46 Seismic Rehabilitation of Existing Buildings[S].USA:American Society of Civil Engineers,2007.
[9]陈学伟,韩小雷,毛贵牛,等.粘滞阻尼器在连体高层结构中的抗风减振效果[J].土木建筑与环境工程,2009,31(5):74-80.
[10]马玉宏,金建敏,韩小雷,等.高层钢-混凝土组合门式结构消能减震体系模拟地震振动台试验研究[J].振动与冲击,2010,29(6):134-139.
[11]ATC Design Guide1,Minimizing Floor Vibration[S].USA:AppliedTechnology Council,1999.
[2]GB50009—2001建筑结构荷载规范[S].北京:中国建筑工业出版社,2002.
[3]GB50011—2001建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.
[4]广州市中洲广场二期工程场地地震安全性评价报告[R].广州:广东省地震工程实验中心,2007.
[5]中洲中心二期项目模型模拟地震振动台试验研究报告[R].广州:广州大学工程抗震研究中心,2008.
[6]韩小雷,陈学伟,林生逸,等.基于纤维模型的超高层钢筋混凝土结构弹塑性时程分析及工程应用[J].建筑结构,2010,40(2):13-16.
[7]谢壮宁,石碧青.广州中洲观光门风荷载特征风洞试验数据图表[R].汕头:汕头大学大气边界层风洞实验室,2008.
[8]ASCE/SEC41-46 Seismic Rehabilitation of Existing Buildings[S].USA:American Society of Civil Engineers,2007.
[9]陈学伟,韩小雷,毛贵牛,等.粘滞阻尼器在连体高层结构中的抗风减振效果[J].土木建筑与环境工程,2009,31(5):74-80.
[10]马玉宏,金建敏,韩小雷,等.高层钢-混凝土组合门式结构消能减震体系模拟地震振动台试验研究[J].振动与冲击,2010,29(6):134-139.
[11]ATC Design Guide1,Minimizing Floor Vibration[S].USA:AppliedTechnology Council,1999.
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