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...
Main Authors: | , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2019-08-01
|
Series: | Sustainability |
Subjects: | |
Online Access: | https://www.mdpi.com/2071-1050/11/17/4543 |
id |
doaj-c953381e98c64ce4bb0bdb3e198a0031 |
---|---|
record_format |
Article |
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 |
_version_ |
1724829129083191296 |