Experimental Study on a Novel Dry Connection for a Precast Concrete Beam-To-Column Joint

At present, precast buildings have become the focus of the building industrialization, and the precast concrete frame structure has been widely used in the construction industry. On this background, a novel precast concrete frame with a bolt connection joint was proposed in this paper. The novel con...

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Main Authors: Yachao Zhong, Feng Xiong, Jiang Chen, Ai Deng, Wen Chen, Xulong Zhu
Format: Article
Language:English
Published: MDPI AG 2019-08-01
Series:Sustainability
Subjects:
Online Access:https://www.mdpi.com/2071-1050/11/17/4543
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spelling doaj-c953381e98c64ce4bb0bdb3e198a00312020-11-25T02:30:14ZengMDPI AGSustainability2071-10502019-08-011117454310.3390/su11174543su11174543Experimental Study on a Novel Dry Connection for a Precast Concrete Beam-To-Column JointYachao Zhong0Feng Xiong1Jiang Chen2Ai Deng3Wen Chen4Xulong Zhu5Key Laboratory of Deep Underground Science and Engineering (Ministry of Education), Sichuan University, Chengdu 610065, ChinaKey Laboratory of Deep Underground Science and Engineering (Ministry of Education), Sichuan University, Chengdu 610065, ChinaKey Laboratory of Deep Underground Science and Engineering (Ministry of Education), Sichuan University, Chengdu 610065, ChinaSouthwest Electric Power Design Institute, Sichuan University, Chengdu 610056, ChinaCollege of Architecture and Environment, Sichuan University, Chengdu 610065, ChinaCollege of Architecture and Environment, Sichuan University, Chengdu 610065, ChinaAt present, precast buildings have become the focus of the building industrialization, and the precast concrete frame structure has been widely used in the construction industry. On this background, a novel precast concrete frame with a bolt connection joint was proposed in this paper. The novel connections include connection steel plates, bolts and rubber layers. To investigate the seismic performance of the precast structure, two full-scale, precast, cruciform, reinforced concrete specimens, and a monolithic counterpart, are tested under reversed cyclic loading. For the precast specimens, two different thickness rubber layers are applied in the connection region, respectively. Seismic behavior was evaluated based on failure mode, hysteretic behavior, stiffness degeneration, ductility and energy dissipation. The results indicated that precast specimens had almost the same ultimate bearing capacity as the cast-in-place ones, and the failure mode is also the same. The precast specimens satisfied the strong column-weak beam design concept. Additionally, the initial stiffness is obviously decreased by adding rubber washers at the joint region, showing a semi-rigid characteristic. At the end of this paper, an equivalent stiffness computation method of the precast joint is discussed.https://www.mdpi.com/2071-1050/11/17/4543precast concretebeam-to-column jointseismic performancebolt connection
collection DOAJ
language English
format Article
sources DOAJ
author Yachao Zhong
Feng Xiong
Jiang Chen
Ai Deng
Wen Chen
Xulong Zhu
spellingShingle Yachao Zhong
Feng Xiong
Jiang Chen
Ai Deng
Wen Chen
Xulong Zhu
Experimental Study on a Novel Dry Connection for a Precast Concrete Beam-To-Column Joint
Sustainability
precast concrete
beam-to-column joint
seismic performance
bolt connection
author_facet Yachao Zhong
Feng Xiong
Jiang Chen
Ai Deng
Wen Chen
Xulong Zhu
author_sort Yachao Zhong
title Experimental Study on a Novel Dry Connection for a Precast Concrete Beam-To-Column Joint
title_short Experimental Study on a Novel Dry Connection for a Precast Concrete Beam-To-Column Joint
title_full Experimental Study on a Novel Dry Connection for a Precast Concrete Beam-To-Column Joint
title_fullStr Experimental Study on a Novel Dry Connection for a Precast Concrete Beam-To-Column Joint
title_full_unstemmed Experimental Study on a Novel Dry Connection for a Precast Concrete Beam-To-Column Joint
title_sort experimental study on a novel dry connection for a precast concrete beam-to-column joint
publisher MDPI AG
series Sustainability
issn 2071-1050
publishDate 2019-08-01
description At present, precast buildings have become the focus of the building industrialization, and the precast concrete frame structure has been widely used in the construction industry. On this background, a novel precast concrete frame with a bolt connection joint was proposed in this paper. The novel connections include connection steel plates, bolts and rubber layers. To investigate the seismic performance of the precast structure, two full-scale, precast, cruciform, reinforced concrete specimens, and a monolithic counterpart, are tested under reversed cyclic loading. For the precast specimens, two different thickness rubber layers are applied in the connection region, respectively. Seismic behavior was evaluated based on failure mode, hysteretic behavior, stiffness degeneration, ductility and energy dissipation. The results indicated that precast specimens had almost the same ultimate bearing capacity as the cast-in-place ones, and the failure mode is also the same. The precast specimens satisfied the strong column-weak beam design concept. Additionally, the initial stiffness is obviously decreased by adding rubber washers at the joint region, showing a semi-rigid characteristic. At the end of this paper, an equivalent stiffness computation method of the precast joint is discussed.
topic precast concrete
beam-to-column joint
seismic performance
bolt connection
url https://www.mdpi.com/2071-1050/11/17/4543
work_keys_str_mv AT yachaozhong experimentalstudyonanoveldryconnectionforaprecastconcretebeamtocolumnjoint
AT fengxiong experimentalstudyonanoveldryconnectionforaprecastconcretebeamtocolumnjoint
AT jiangchen experimentalstudyonanoveldryconnectionforaprecastconcretebeamtocolumnjoint
AT aideng experimentalstudyonanoveldryconnectionforaprecastconcretebeamtocolumnjoint
AT wenchen experimentalstudyonanoveldryconnectionforaprecastconcretebeamtocolumnjoint
AT xulongzhu experimentalstudyonanoveldryconnectionforaprecastconcretebeamtocolumnjoint
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