| 塑性铰区埋入高阻尼隔震橡胶层厚度的数值模拟分析 |
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| 引用本文： | 陈怀亮,张大长.塑性铰区埋入高阻尼隔震橡胶层厚度的数值模拟分析[J].四川建筑科学研究,2010,36(6). |
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| 作者姓名： | 陈怀亮 张大长 |
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| 作者单位： | 1. 南通纺织职业技术学院建工系,江苏,南通,226007
2. 南京工业大学土木工程学院,江苏,南京,210009 |
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| 基金项目： | 江苏省高校自然科学基金资助项目(05KLB560044); 江苏省建设厅科研资助项目(JS200519) |
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| 摘 要： | 钢筋混凝土(RC)桥墩一旦出现塑性铰后,混凝土的破坏主要集中在塑性铰区域,而且塑性铰区混凝土的损伤及破坏程度在较大程度上影响RC桥墩的抗震性能。本文希望通过在RC桥墩塑性铰区域埋入橡胶层来提高其变形能力、增强延性和耗能能力,改善传统RC桥墩的抗震性能。基于橡胶、混凝土和钢筋的本构模型及承载力—变形理论,采用条带法,本文提出了不同轴压比、不同层间位移角所需要橡胶层厚度的计算方法,并编制了计算程序;分析得到了不同轴压比、不同层间位移角的RC柱中所需埋入的橡胶层的最小厚度,为确定RC柱塑性铰区所埋入橡胶层厚度提供参考。
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| 关 键 词： | 塑性铰 高阻尼隔震橡胶 厚度 数值模拟分析 |
Numerical simulation on the thickness of high damping rubber layer built in plastic hinge |
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| CHEN Huailiang,ZHANG Dachang.Numerical simulation on the thickness of high damping rubber layer built in plastic hinge[J].Building Science Research of Sichuan,2010,36(6). |
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| Authors: | CHEN Huailiang ZHANG Dachang |
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| Affiliation: | CHEN Huailiang1,ZHANG Dachang2 (1.Nantong Textile Vocational Technology College,Nantong 226007,China,2.College of Civil Engineering,Nanjing University of Technology,Nanjing 210009,China) |
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| Abstract: | Generally,the damage of concrete is concentrated on the plastic hinge zone,once plastic hinge appears in reinforced concrete(RC) bridge pier.What's more,the damage condition of concrete has a large effect on the seismic performance of RC bridge pier.This paper aimed at developing a new type of RC bridge pier with a rubber layer built-in its plastic hinge zone,in which the deformation capacity,ductility and energy dissipation are increased.Based on the constitutive model of rubber material,concrete,steel and... |
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| Keywords: | plastic hinge high damping rubber layer thickness numerical simulation |
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