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Experimental Study on Seismic Behavior ofSeismic-damaged Lateral Joints in CompositeFrame Consisting of CFSST Columns and SteelBeams Strengthened with Enclosed ReinforcedConcrete
Experimental Study on Seismic Behavior ofSeismic-damaged Lateral Joints in CompositeFrame Consisting of CFSST Columns and SteelBeams Strengthened with Enclosed ReinforcedConcrete
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摘要：
A new composite strengthening method of seismic-damaged lateral joints in composite frame consisting of Concrete-Filled SquareSteel Tubes （CFSST） columns and steel beams strengthened with enclosed Reinforced Concrete （RC） at the ends of columns andwelding steel plates at the ends of beams was presented. Based on the current design specifications, one half scaled models of 4lateral joints in composite frame consisting of CFSST columns and steel beams were designed and manufactured. One model wasoriginal control specimen, one was strengthened by enclosed RC, and the others were strengthened after pre-damage. The destructiontests under lateral cyclic load on the models were carried. The effectiveness of seismic-damaged joints strengthened with enclosedRC and the reinforcement effect on different levels of seismic damage were studied. The test results show that seismic- damagedjoints in composite frame consisting of CFSST columns and steel beams strengthened with enclosed RC meets the strongcolumn-weak beam joints requirement of seismic design, and the failure modes are of all joints are the bending failure of steel beam.The reinforcement with enclosed RC has a significant on increasing the ultimate capacity and the seismic behaviors of joints. Thestudy indicated the rehabilitated joints recover the level of their original seismic performances before seismic damage in a certainextent damage level. Based on the test data, namely the ultimate capacity, limit displacement, ductility, the energy consumptioncoefficient, limit displacementthe strengthening method of seismic-damaged joints by strengthened with enclosed RC is an effectivemethod for seismic strengthening.
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| 篇名 | Experimental Study on Seismic Behavior ofSeismic-damaged Lateral Joints in CompositeFrame Consisting of CFSST Columns and SteelBeams Strengthened with Enclosed ReinforcedConcrete | ||
| 来源期刊 | 建筑工程：中英文版 | 学科 | 工学 |
| 关键词 | Frame Joint with Concrete-Filled Square STEEL Tube (CFSST)-Steel Beam Strengthening with Enclosed ReinforcedConcrete (RC) QUASI-STATIC Test SEISMIC Damage SEISMIC Behavior | ||
| 年，卷（期） | 2015,（2） | 所属期刊栏目 | |
| 研究方向 | 页码范围 | 22-29 | |
| 页数 | 8页 | 分类号 | TU |
| 字数 | 语种 | ||
| DOI | |||
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研究主题发展历程
节点文献
Frame
Joint
with
Concrete-Filled
Square
STEEL
Tube
(CFSST)-Steel
Beam
Strengthening
with
Enclosed
ReinforcedConcrete
(RC)
QUASI-STATIC
Test
SEISMIC
Damage
SEISMIC
Behavior
研究起点
研究来源
研究分支
研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
建筑工程：中英文版
主办单位：
Ivy
Publisher
出版周期：
季刊
ISSN：
2329-8065
CN：
开本：
出版地：
湖北省武汉市武昌区珞狮南路519号（中国
邮发代号：
创刊时间：
语种：
出版文献量（篇）
37
总下载数（次）
0
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0
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