厚板转换层设置高度对结构抗震性能的影响
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摘要
为了分析厚板转换层设置高度对结构抗震性能的影响,根据建筑结构抗震设计规范,系统研究了地震作用下结构的破坏机理及计算方法,建立了地震作用下结构的运动方程,采用自振周期、楼层位移及层间位移角作为结构抗震性能指标,基于振型分解反应谱法对各指标进行了研究。结果表明:随着厚板转换层设置高度的增加,结构低阶振型的自振周期增大;楼层位移变大,层间位移角增大,结构整体抗震性能下降。
To analysis the effect of the level of thick plate transition layer on structural seismic performance,according to the code for seismic design of buildings,we systematically studied the failure mechanism and calculation method of structure under earthquake action and built the motion equation of buildings.Natural period of structure,floor displacement and inter-story displacement angle were used as the seismic performance indicators and they were analyzed by mode-superposition response spectrum method.It is shown that with the increase of the thick plate transition layer,the natural period of structure in the low order mode increases,the floor displacement and inter-story displacement angle rise,and the whole structure seismic performance declines.
To analysis the effect of the level of thick plate transition layer on structural seismic performance,according to the code for seismic design of buildings,we systematically studied the failure mechanism and calculation method of structure under earthquake action and built the motion equation of buildings.Natural period of structure,floor displacement and inter-story displacement angle were used as the seismic performance indicators and they were analyzed by mode-superposition response spectrum method.It is shown that with the increase of the thick plate transition layer,the natural period of structure in the low order mode increases,the floor displacement and inter-story displacement angle rise,and the whole structure seismic performance declines.
引文
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[16]张守筠.大跨度型钢混凝土转换层结构设计方案的对比分析[D].重庆:重庆大学,2010.
[2]董堃,孙颖.高层建筑梁式转换层结构实用设计方法探讨[J].工业建筑,2009,39(Sup1):264-269.Dong K,Sun Y.Discussion on the practical design method ofgirder transfer floor for high-rise building[J].IndustrialConstruction,2009,39(Sup1):264-269.
[3]张敏,凌志彬.大震作用下带拱式转换层高层结构动力弹塑性分析[J].北京交通大学学报,2011,35(6):34-36.Zhang M,Ling Z B.Dynamic analysis of elastoplasticperformance of tall building with arch transfer floor subjected tosevere earthquake[J].Journal of Beijing Jiaotong University,2011,35(6):34-36.
[4]靳晓燕.带厚板转换层高层建筑结构抗震性能分析[D].上海:同济大学,2007.
[5]张敏,梁炯丰.拱式转换层结构竖向受力分析[J].工业建筑,2008,38(5):46-53.Zhang M,Liang J F.Analysis of arch transfer floor subjected tovertical loading[J].Industrial Construction,2008,38(5):46-53.
[6]易广智,沈蒲生,朱建华.转换层位置对框架结构受力性能的影响分析[J].建筑结构,2008,38(6):80-81.Yi G Z,Shen P S,Zhu J H.Influence of different transfer girderheights on behaviors of frame structure[J].Building Structure,2008,38(6):80-81.
[7]王森,魏琏.不同高位转换层对高层建筑动力特性和地震作用影响的研究[J].建筑结构,2002,32(8):54-58.Wang S,Wei L.Study on the dynamic characteristics andseismic effect of different high conversion layer in high-risebuilding[J].2002,32(8):54-58.
[8]徐培福,王翠坤,郝锐坤.转换层设置高度对框支剪力墙结构抗震性能的影响[J].建筑结构,2000,30(1):38-42.Xu P F,Wang C K,Hao R K.Effect of the level of transfer flooron frame-supported shear wall seismic performance[J].BuildingStructure,2000,30(1):38-42.
[9]Dai G L,Tong X D,Huang X H,et al.Application of laminatedvierendeel truss in high-position transfer story structure[J].Journal of Southeast University:English Edition,2005,6(2):49-53.
[10]Li J H,Su R K L,Chandler A M.Assessment of low-risebuilding with transfer beam under seismic forces[J].EngineeringStructures,2003,25(12):1537-1549.
[11]潘国雄,陈旭能.某高层商住楼的厚板转换层设计[J].建筑结构,2010,40(7):27-29.Pan G X,Chen X N.Design of the thick plate transition layer ina high-rise building[J].Engineering Structures,2010,40(7):27-29.
[12]谷倩,肖楠,蔡全智,等.箱形转换层位置对高层结构抗震性能影响[J].武汉理工大学学报,2010,32(2):38-42.Gu Q,Xiao N,Cai Q Z.Influence of the elevation of box-shapedtransfer storey on seismic behaviour of high-rise structures[J].Journal of Wuhan University of Techndogy,2010,32(2):38-42.
[13]杨克家,梁兴文.带加强层高层建筑结构地震作用的简化算法[J].地震工程与工程振动,2011,31(3):141-142.Yang K J,Liang X W.A simplified method for calculatingearthquake action on high-rise structures with strengthenedstories[J].Journal of Earthquake Engineering and EngineeringVibration,2011,31(3):141-142.
[14]李国强,李杰,苏小卒.建筑结构抗震设计[M].北京:中国建筑工业出版社,2009.
[15]JGJ3-2002高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社.
[16]张守筠.大跨度型钢混凝土转换层结构设计方案的对比分析[D].重庆:重庆大学,2010.
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