Please submit manuscripts in either of the following two submission systems

    ScholarOne Manuscripts

  • ScholarOne
  • 勤云稿件系统

  • 登录

Search by Issue

  • 2024 Vol.31
  • 2023 Vol.30
  • 2022 Vol.29
  • 2021 Vol.28
  • 2020 Vol.27
  • 2019 Vol.26
  • 2018 Vol.25
  • 2017 Vol.24
  • 2016 vol.23
  • 2015 vol.22
  • 2014 vol.21
  • 2013 vol.20
  • 2012 vol.19
  • 2011 vol.18
  • 2010 vol.17
  • 2009 vol.16
  • No.1
  • No.2

Supervised by Ministry of Industry and Information Technology of The People's Republic of China Sponsored by Harbin Institute of Technology Editor-in-chief Yu Zhou ISSNISSN 1005-9113 CNCN 23-1378/T

期刊网站二维码
微信公众号二维码
Related citation:Wei Liu,Jinqing Jia.Experimental Studies on Seismic Behavior of Exterior SRUHSC Joints[J].Journal of Harbin Institute Of Technology(New Series),2017,24(5):61-70.DOI:10.11916/j.issn.1005-9113.16120.
【Print】   【HTML】   【PDF download】   View/Add Comment  Download reader   Close
←Previous|Next→ Back Issue    Advanced Search
This paper has been: browsed 1548times   downloaded 827times 本文二维码信息
码上扫一扫!
Shared by: Wechat More
Experimental Studies on Seismic Behavior of Exterior SRUHSC Joints
Author NameAffiliation
Wei Liu State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China 
Jinqing Jia State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China 
Abstract:
To investigate the seismic behavior of the joints, six steel reinforced ultra high strength concrete (SRUHSC) frame exterior joints were tested. Three levels of axial compressive ratio varying from 0.25 to 0.45 were investigated to determine how this variable might influence the performance of the joints including failure mode, ductility, energy dissipation capacity, stiffness degradation, shear strength and shear deformation by the quasi-static cyclic test on SRUHSC exterior joints. This research program suggests that the design of joint should make full use of the joint panel deformation to dissipate energy of earthquake. It is tested that the value of 0.38 as a dividing point about the effect of axial compression ratio on the seismic performance of SRUHSC exterior joints should be taken into account in design. In addition, the increase of volumetric ratio of stirrup could possess the ductility for adequate response to unexpected strong earthquakes and a recommended value of minimum volumetric ratio of stirrup with high axial-load level is pointed out.
Key words:  exterior joints  ultra high strength concrete  steel  axial compression ratio
DOI:10.11916/j.issn.1005-9113.16120
Clc Number:TU378.2
Fund:
Descriptions in Chinese:
  

钢骨超高强混凝土边节点抗震性能试验研究

刘 伟,贾金青

(大连理工大学 海岸和近海工程国家重点实验室,辽宁 大连,116024)

创新点说明:

1)研究了轴压比对钢骨超高强混凝土边节点破坏形态的重要影响,随着轴压比提高,破坏形态由梁塑性铰延性破坏变为节点核心区剪切破坏,当轴压比超过试验轴压比0.38,破坏形态转变为小偏心受压破坏。

2)研究了不同轴压比下钢骨超高强混凝土边节点抗震性能,包括承载力、延性、剪切变形、应力应变,在此基础上,提出了钢骨超高强混凝土边节点的轴压比限值。

3)提出了钢骨超高强混凝土边节点轴压比限值下的最小配箍率。

研究目的:

主要解决钢骨超高强混凝土边节点抗震设计问题,提出这种新型结构体系的轴压比限值及最小配箍率。

研究方法:

开展了钢骨超高强混凝土边节点的低周往复试验研究,使用IMC数据采集系统采集数据,节点核心区采用LVDT测量剪切变形,并进行理论分析。

结果:

1)随着轴压比提高,破坏形态由梁塑性铰延性破坏变为节点核心区剪切破坏,当轴压比超过试验轴压比0.38,破坏形态转变为小偏心受压破坏。

2)当轴压比提高80%时,构件的延性系数下降57%。

3)当试验轴压比小于0.38时,提高轴压比能提高构件的初始刚度,而当试验轴压比超过0.38时,提高轴压比导致初始刚度下降,且刚度急速退化。

4)当试验轴压比小于0.38时,提高轴压比能提高构件的承载力,而当试验轴压比超过0.38时,提高轴压比承载力反而降低。

5)提出钢骨超高强混凝土边节点的轴压比限值0.38(设计轴压比0.65),及对应的最小配箍率。

结论:

1)研究了轴压比对钢骨超高强混凝土边节点破坏形态的重要影响,随着轴压比提高,破坏形态由梁塑性铰延性破坏变为节点核心区剪切破坏,当轴压比超过试验轴压比0.38,破坏形态转变为小偏心受压破坏。

2)研究了不同轴压比下钢骨超高强混凝土边节点抗震性能,包括承载力、延性、剪切变形、应力应变,在此基础上,提出了钢骨超高强混凝土边节点的轴压比限值。

3)提出钢骨超高强混凝土边节点的轴压比限值0.38(设计轴压比0.65),及对应的最小配箍率。

关键词:边节点,钢骨超高强混凝土结构,钢骨,轴压比

LINKS