拱式转换层位置对框架结构受力性能的影响
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摘要
研究目的:通过算例分析比较,对框架结构在不同高度设置拱式转换层时的内力和位移特点进行研究。研究结论:带转换层结构与无转换层结构相比,转换层以上的结构构件内力变化较小,转换层以下各层内力变化较大。转换层不同高度的结构相比,高位转换层以下结构构件的内力变化相对较小,以上结构构件的内力变化相对较大。水平荷载下,转换层以上结构变形曲线以剪切变形为主,以下结构则呈弯曲变形特征,转换层处为上、下变形曲线的转折处。顶点位移随着转换层位置的升高而增大。不设转换层时,在结构下部出现一个极大值。设转换层后,转换层往往为层间位移较小处。只要合理设计,拱式转换层结构可具有良好抗震性能。
Research purposes:Through the comparison and analysis of the calculation example,the study is done on the internal force and displacement characteristics when installing arched conversion layer at different heights to the frame structure.Research conclusions:Compared with the structure of no conversion layer,the internal force of the structure member above the conversion layer changes a little while the internal force of the every flayer below the conversion layer increase much.For the structures of conversion layers at different heights,the internal force of the structure member below the conversion layer changes a little while the internal force of the structure member above the conversion layer increase much.Under horizontal load,the deformation curve on the structure above conversion layer is shearing deformation mainly and the the deformation curve on the structure below the conversion layer is bending deformation mainly.The conversion layer is the turning point between above and below deformation curves.With no conversion layer,the max.value appears on the low part of the structure.The top displacement increases with raising height of the conversion layer.The conversion layer is the place with small displacement between layers.Therefore,if the design is reasonable,the arched conversion layer can have a perfect seismic performance.
Research purposes:Through the comparison and analysis of the calculation example,the study is done on the internal force and displacement characteristics when installing arched conversion layer at different heights to the frame structure.Research conclusions:Compared with the structure of no conversion layer,the internal force of the structure member above the conversion layer changes a little while the internal force of the every flayer below the conversion layer increase much.For the structures of conversion layers at different heights,the internal force of the structure member below the conversion layer changes a little while the internal force of the structure member above the conversion layer increase much.Under horizontal load,the deformation curve on the structure above conversion layer is shearing deformation mainly and the the deformation curve on the structure below the conversion layer is bending deformation mainly.The conversion layer is the turning point between above and below deformation curves.With no conversion layer,the max.value appears on the low part of the structure.The top displacement increases with raising height of the conversion layer.The conversion layer is the place with small displacement between layers.Therefore,if the design is reasonable,the arched conversion layer can have a perfect seismic performance.
引文
[1]陈进,江世永,孙亮.单跨框支转换梁应力分布规律的有限元分析[J].四川建筑科学研究,2004(1):35-37.Chen Jin,Wang Shiyong,Sun Liang.Finite Element Analysis Aboutstress Distribution of One-span Transfer Beam Supported on R.C.Frame[J].Building Science Research of Sichuan,2004(1):35-37.
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[3]Han-Seon Lee,Dong-Woo Ko.Seismic response characteristics of high-rise RC wall buildings having different irregularities in lower stories[J].Engineering Structures,2007(10):1-18.
[4]王平山,干钢,孙炳楠,等.高层建筑厚板转换层内力分布研究[J].浙江大学学报(自然科学版),1998(5):570-576.Wang Pingshan,Gan Gang,Sun Bingnan,etc.Analysis of Thick Plate Transition Layer for High Rise Building[J].Journal of Zhejiang University(Natural Science),1998(5):570-576.
[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(5):46-49.Zhang Min,Liang Jiongfeng.Analysis of Arch Transfer Floor Subjected to Vertical Loading[J].Industrial Construction,2008(5):46-49.
[6]梁炯丰,张敏.拱式转换层上、下部刚度比对结构多遇地震反应的影响分析[J].特种结构,2007(2):65-69.Liang Jiongfeng,Zhang Min.Analysis of Effect of Stiffness Ration of Arch Transfer Floor Structure on Frequent Earthquake Reaction[J].Special Structures,2007(2):65-69.
[7]梁炯丰,杨泽平,王俭宝,等.刚度比对拱式转换层结构抗震性能的影响[J].铁道工程学报,2008(7):98-102.Liang Jiongfeng,Yang Zeping,Wang Jianbao,etc.The Effect of Stiffness Ration on Seismic Behavior of Arch Transfer Floor Structure[J].Journal of Railway Engineering Society,2008(7):98-102.
[8]刘劲松,裘涛.不同高位大跨钢桁架转换层对建筑结构抗震性能影响的研究[J].工程抗震与加固改造,2006(2):46-50.Liu Jingsong,Qiu Tao.Study on Seismic Performance of Structure Affected by Long-span Steel Transfer Trusses Located at a Different High Level[J].Earthquake Resistant Engineering and Retrofitting,2006(2):46-50.
[9]荣维生,王亚勇.板式转换结构转换层位置对高层建筑抗震性能的影响[J].建筑科学,2004(4):1-6.Rong Weisheng,Wang Yayong.Effect of the Level of Transfer Slab on Seismic Behavior of Tall Building Structures[J].Building Science,2004(4):1-6.
[10]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(8):54-58.Wang Sen,Wei Lian.Study on Influence of the High Level of Transfer Floor on the Structural Behavior of High-rise Building[J].Building Structure,2002(8):54-58.
[11]梁炯丰.拱式转换层结构弹性性能研究[D].南昌:华东交通大学,2007.Liang Jiongfeng.Study on Elastic Properties of Arch Transfer Floor Structure[D].Nanchang:East China Jiaotong University,2007.
[2]唐兴荣,蒋永生,丁大钧.预应力混凝土桁架转换层结构的试验研究和设计建议[J].土木工程学报,2001(4):32-40.Tang Xingrong,Jiang Yongsheng,Ding Dajun.Experimentalstudy on Transfer Story Structure with Prestressed Concrete Truss[J].China Civil Engineer Journal,2001(4):32-40.
[3]Han-Seon Lee,Dong-Woo Ko.Seismic response characteristics of high-rise RC wall buildings having different irregularities in lower stories[J].Engineering Structures,2007(10):1-18.
[4]王平山,干钢,孙炳楠,等.高层建筑厚板转换层内力分布研究[J].浙江大学学报(自然科学版),1998(5):570-576.Wang Pingshan,Gan Gang,Sun Bingnan,etc.Analysis of Thick Plate Transition Layer for High Rise Building[J].Journal of Zhejiang University(Natural Science),1998(5):570-576.
[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(5):46-49.Zhang Min,Liang Jiongfeng.Analysis of Arch Transfer Floor Subjected to Vertical Loading[J].Industrial Construction,2008(5):46-49.
[6]梁炯丰,张敏.拱式转换层上、下部刚度比对结构多遇地震反应的影响分析[J].特种结构,2007(2):65-69.Liang Jiongfeng,Zhang Min.Analysis of Effect of Stiffness Ration of Arch Transfer Floor Structure on Frequent Earthquake Reaction[J].Special Structures,2007(2):65-69.
[7]梁炯丰,杨泽平,王俭宝,等.刚度比对拱式转换层结构抗震性能的影响[J].铁道工程学报,2008(7):98-102.Liang Jiongfeng,Yang Zeping,Wang Jianbao,etc.The Effect of Stiffness Ration on Seismic Behavior of Arch Transfer Floor Structure[J].Journal of Railway Engineering Society,2008(7):98-102.
[8]刘劲松,裘涛.不同高位大跨钢桁架转换层对建筑结构抗震性能影响的研究[J].工程抗震与加固改造,2006(2):46-50.Liu Jingsong,Qiu Tao.Study on Seismic Performance of Structure Affected by Long-span Steel Transfer Trusses Located at a Different High Level[J].Earthquake Resistant Engineering and Retrofitting,2006(2):46-50.
[9]荣维生,王亚勇.板式转换结构转换层位置对高层建筑抗震性能的影响[J].建筑科学,2004(4):1-6.Rong Weisheng,Wang Yayong.Effect of the Level of Transfer Slab on Seismic Behavior of Tall Building Structures[J].Building Science,2004(4):1-6.
[10]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(8):54-58.Wang Sen,Wei Lian.Study on Influence of the High Level of Transfer Floor on the Structural Behavior of High-rise Building[J].Building Structure,2002(8):54-58.
[11]梁炯丰.拱式转换层结构弹性性能研究[D].南昌:华东交通大学,2007.Liang Jiongfeng.Study on Elastic Properties of Arch Transfer Floor Structure[D].Nanchang:East China Jiaotong University,2007.
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