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吕西林, LU Xi-lin, LI Jun-lan
地震工程与工程振动,2006,22(3)42~50,-0001,():
-1年11月30日
本文对两组五个钢筋混凝土核心筒试件进行了低周反复荷载试验,研究了不同轴压比和剪跨比的核心筒破坏机理、承载能力、延性和耗能能力等方面的抗震性能。结果表明,轴压比对核心筒的抗震性能有较大影响。
钢筋混凝土核心筒, 反复荷载, 轴压比, 抗震性能
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【期刊论文】考虑场地类别与设计分组的延性需求谱和弹塑性位移反应谱
吕西林, LU Xi-lin, ZHOU Ding-song
地震工程与工程振动,2004,24(1)57~63,-0001,():
-1年11月30日
非线性反应谱是基于性能的抗震设计理论中亟待解决的基础性课题之一。本文将四种场地类别上的641条地震记录,按我国现行抗震规范设计分组的要求分为12组,对大量具有不同屈服强度系数的单自由度体系作了弹塑性时程分析。研究了结构强度水平、周期、场地类别以及设计分组等因素对延性需求的影响。结果表明,在给定屈服强度水平下结构的延性需求强烈地依赖于场地条件、设计分组等因素。对于短周期结构,延性需求随场地土变软而增大,同类场地随设计分组特征周期增大而增大。通过非线性回归分析,建立了与场地类别、设计分组相对应的延性需求谱μ-ξy-T的计算公式。在此公式的基础上,结合现阶段抗震设计规范构建了弹塑性位移反应谱,可用于结构弹塑性位移需求的简化计算,同时讨论了弹塑性位移反应谱的基本特点。
基于性能的抗震设计, 延性需求谱, 场地类别, 设计分组, 弹塑性位移反应谱
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【期刊论文】Study on a new shear wall system with shaking table test and finite element analysis
吕西林, Xilin Lu*, † and Xiaohan Wu
Earthquake Engng Struct. Dyn. 2000; 29: 1425-1440,-0001,():
-1年11月30日
A new seismic energy dissipation shear wall structure is proposed in Ibis paper. Tile new shear wall is one with purposely built-in vertical slits within the wall panel, and rubber belts as seismic energy dissipation devices are installed in the vertical slits. In order to verify this concept, shaking table tests of a 1O-storey shear wall modcl with rubber belts filled in the vertical sifts were carried out, and comparison of seisndc behaviour was made between the new shear wa]l system and a shear wall with reinforced concrete connecting beams as energy dissipation, Furthermore, the seismic behaviour of this new shear wall is analysed by a finite element time history analysis method The test and analysis show thai the new shear wall system has a very good ability to dissipate seismic energy and is easy to use in engineering practice.
reinforced concrctc, shear wall, shaking table test, seisndc energy dissipation, finite element method, time history analysis
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【期刊论文】Study on a new shear wall system with shaking table test and finite element analysis
吕西林, Xilin Lu*, † and Xiaohan Wu
Earthquake Engng Struct. Dyn. 2000; 29: 1425-1440,-0001,():
-1年11月30日
A new seismic energy dissipation shear wall structure is proposed in Ibis paper. Tile new shear wall is one with purposely built-in vertical slits within the wall panel, and rubber belts as seismic energy dissipation devices are installed in the vertical slits. In order to verify this concept, shaking table tests of a 1O-storey shear wall modcl with rubber belts filled in the vertical sifts were carried out, and comparison of seisndc behaviour was made between the new shear wa]l system and a shear wall with reinforced concrete connecting beams as energy dissipation, Furthermore, the seismic behaviour of this new shear wall is analysed by a finite element time history analysis method The test and analysis show thai the new shear wall system has a very good ability to dissipate seismic energy and is easy to use in engineering practice.
reinforced concrctc, shear wall, shaking table test, seisndc energy dissipation, finite element method, time history analysis
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吕西林, LU Xi-lin, LI Xue-ping, YU Yong
同济大学学报,2002,30(1)1~5,-0001,():
-1年11月30日
在试验研究和理论分析的基础上,提出了方钢管混凝土柱与钢染连接节点的设计及构造建议。并对试验结果和理论公式的计算结果进行了对比这一设计方法已被国家有关技术规程所采纳
方钢管混凝土柱, 钢梁, 连接, 节点
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