Pseudo-dynamic test on CFDST composite frame

被引：0
|
作者：
Huang L. [1 ,2 ]
Guo L. [1 ]
Lu F. [1 ]
Pu Y.-F. [1 ]
Wang J.-F. [1 ,2 ]
机构：
[1] College of Civil Engineering, Hefei University of Technology, Hefei
[2] Anhui Key Laboratory of Civil Engineering Structures and Materials, Hefei
来源：
Zhendong Gongcheng Xuebao/Journal of Vibration Engineering | 2022年 / 35卷 / 06期
关键词：
CFDST; Composite structure; OpenSees finite element; Pseudo-dynamic test;
D O I：
10.16385/j.cnki.issn.1004-4523.2022.06.022
中图分类号：
学科分类号：
摘要：
The concrete-filled double skin steel tubular (CFDST) column and steel-concrete composite beam connected by high-strength blind bolt is a new assembly type frame composite structure. Applied the OpenSees software and MTS servo-hydraulic loading device, a multi-story frame pseudo-dynamic test is conducted for investigating the dynamic response evaluation of composite structure and deformation-failure detection of test specimen under a rare earthquake, where the vulnerable bottom two-story frame is assigned as test specimen. The axial force loading with horizontal follow-up capability is one of technical difficulties in the pseudo-dynamic test. The simplified boundary with omitted axial force and the approximate boundary with horizontal follow-up axial force are compared. The test results show that under the rare earthquake, the beam-column joint of composite frame will reach the bending collapse first. The joint rotation dissipates the seismic energy, thereby avoiding plastic hinge at the beam ends. Using the high-strength blind bolt, the beam-column joint belongs to semi-rigid joint, which results in a larger layer displacement angle of composite frame than the 2% restriction of the code for seismic design. The axial force is slightly beneficial to increase the horizontal stiffness of CFDST column, the loading scheme of omitting the axial force is an acceptable boundary simplification. © 2022, Editorial Board of Journal of Vibration Engineering. All right reserved.
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页码：1501 / 1510
页数：9
相关论文
共 20 条
  • [1] Tao Z, Han L H., Development in the research of concrete filled double-skin steel tubes, Journal of Harbin Institute of Technology, Z1, pp. 144-146, (2003)
  • [2] Tao Z, Han L H, Zhao X L., Behaviour of concrete-filled double skin (CHS inner and CHS outer) steel tubular stub columns and beam-columns [J], Journal of Constructional Steel Research, 60, 8, pp. 1129-1158, (2004)
  • [3] Sulthana U M, Jayachandran S A., Axial compression behaviour of long concrete filled double skinned steel tubular columns, Structures, 9, pp. 157-164, (2017)
  • [4] Uenaka K., CFDST stub columns having outer circular and inner square sections under compression, Journal of Constructional Steel Research, 120, pp. 1-7, (2016)
  • [5] Huang H, Zhu Q, Chen M C, Et al., Experimental study on concrete-filled double-skin square steel tubes under compression-bending-torsion loading conditions, China Civil Engineering Journal, 49, 3, pp. 91-97, (2016)
  • [6] Hu Y, Zhao J H, Zhang D F, Et al., Experimental seismic performance of CFDST- steel beam frames with different construction details, Journal of Constructional Steel Research, 162, (2019)
  • [7] Wang J F, Zhong L P, Guo L, Et al., Pseudo-dynamic test analysis on blind bolted joints between square CFDST columns and steel beams, China Civil Engineering Journal, 52, 9, pp. 1-11, (2019)
  • [8] Guo L, Wang J F, Lu J, Et al., Dynamic performance tests on blind bolted endplate joints between CFDST columns and composite beams, Earthquake Engineering and Engineering Vibration, 39, 3, pp. 99-108, (2019)
  • [9] Mahin S A, Shing P S B., Pseudo dynamic method for seismic testing, Journal of Structural Engineering, 111, 7, pp. 1482-1503, (1985)
  • [10] Xue J Y, Zhai L, Zhao X, Et al., Pseudo-dynamic test and elasto-plastic seismic response analysis of RC-CFST composite frame model of traditional-style building, China Civil Engineering Journal, 52, 6, pp. 24-34, (2019)
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