基于可更换耗能连接的装配式混凝土梁柱节点力学性能试验研究

TU375.4; 为提高结构的震后修复效率和修复后工作性能,提出一种带有可更换耗能连接的装配式混凝土框架梁柱节点构造.将可更换耗能连接作为梁端抗弯部件和阻尼器,销轴体系作为梁端抗剪部件,进行节点试件的拟静力试验,分析其力学特性、抗震能力和修复后性能?结果表明,试件在加载过程中表现出稳定的耗能能力和高延性性能,塑性变形集中在耗能连接的核心钢板内,卸载后混凝土裂缝均可闭合.发生较大转角位移时,试件可保持稳定的承载能力,其失效模式为核心钢板中部的疲劳断裂.更换核心钢板后试件的弹性刚度、滞回性能和延性等与初始工况一致,混凝土部件仍保持弹性,表明节点的震后修复性能良好.所提出的节点构造可应用于高烈度区域...

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Published in东南大学学报（自然科学版） Vol. 51; no. 1; pp. 1 - 8
Main Authors 谢鲁齐, 吴京, 章锦洋, 刘晨昱
Format Journal Article
LanguageChinese
Published 东南大学混凝土及预应力混凝土教育部重点实验室,南京211189 20.01.2021
Subjects
低周疲劳能力
滞回性能
可更换耗能连接组件
装配式混凝土框架
震后修复性能
Online AccessGet full text
ISSN1001-0505
DOI10.3969/j.issn.1001-0505.2021.01.001

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Abstract TU375.4; 为提高结构的震后修复效率和修复后工作性能,提出一种带有可更换耗能连接的装配式混凝土框架梁柱节点构造.将可更换耗能连接作为梁端抗弯部件和阻尼器,销轴体系作为梁端抗剪部件,进行节点试件的拟静力试验,分析其力学特性、抗震能力和修复后性能?结果表明,试件在加载过程中表现出稳定的耗能能力和高延性性能,塑性变形集中在耗能连接的核心钢板内,卸载后混凝土裂缝均可闭合.发生较大转角位移时,试件可保持稳定的承载能力,其失效模式为核心钢板中部的疲劳断裂.更换核心钢板后试件的弹性刚度、滞回性能和延性等与初始工况一致,混凝土部件仍保持弹性,表明节点的震后修复性能良好.所提出的节点构造可应用于高烈度区域,使结构在强震后快速恢复承载能力和使用功能.
AbstractList TU375.4; 为提高结构的震后修复效率和修复后工作性能,提出一种带有可更换耗能连接的装配式混凝土框架梁柱节点构造.将可更换耗能连接作为梁端抗弯部件和阻尼器,销轴体系作为梁端抗剪部件,进行节点试件的拟静力试验,分析其力学特性、抗震能力和修复后性能?结果表明,试件在加载过程中表现出稳定的耗能能力和高延性性能,塑性变形集中在耗能连接的核心钢板内,卸载后混凝土裂缝均可闭合.发生较大转角位移时,试件可保持稳定的承载能力,其失效模式为核心钢板中部的疲劳断裂.更换核心钢板后试件的弹性刚度、滞回性能和延性等与初始工况一致,混凝土部件仍保持弹性,表明节点的震后修复性能良好.所提出的节点构造可应用于高烈度区域,使结构在强震后快速恢复承载能力和使用功能.
Author 谢鲁齐
刘晨昱
吴京
章锦洋
AuthorAffiliation 东南大学混凝土及预应力混凝土教育部重点实验室,南京211189
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Xie Luqi
Zhang Jinyang
Liu Chenyu
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Keywords 低周疲劳能力
滞回性能
可更换耗能连接组件
装配式混凝土框架
震后修复性能
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Title 基于可更换耗能连接的装配式混凝土梁柱节点力学性能试验研究
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