Vol. 12, No. 3, pp. 296-315 (2016)
A PSEUDO-DYNAMIC TEST STUDY ON A SELF-CENTERING
PREFABRICATED STEEL FRAME WITH A COLUMN BASE CONNECTED
BY SEMI-RIGID JOINTS
Yanxia Zhang1*, Zongyang Wang 2,Wei Zhao 2, Wenzhan Zhao 2 and Yuanyuan Chen 2
1 Associate Professor, Beijing Higher Institution Engineering Research Center of Structural Engineering and New Materials, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
2 Postgraduate, School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
*(Corresponding author: E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.)
Received: 4 September 2015; Revised: 10 September 2015; Accepted: 19 September 2016
DOI:10.18057/IJASC.2016.12.3.5
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ABSTRACT
Self-centering steel frame structures are advantageous in that they can control structural damage,reduce or eliminate residual deformation, and are easy to repair after strong earthquakes. Aself-centeringprefabricated steel frame with a column base connected by semi-rigid joints (SPSF-SRJ) is proposed in the presentstudy. The goal is to address the problem of excessive plasticity that a self-centering prefabricated frame with acolumn base connected by rigid joints exhibits. In addition, a pseudo-dynamic test is performed on the sub-structureof the proposed system to investigate and discuss the seismic performance of the system, which is then comparedwith the seismic performance of a self-centering prefabricated steel frame with a column base connected by rigidjoints (SPSF-RJ). The test results show that the proposed performance-based design goal can be realized in theSPSF-SRJ. The semi-rigid joints effectively protect the column base and eliminate or reduce the damage to thecolumns; after an earthquake, only the steel beams require repairs, which significantly reduces the post-earthquakerepair cost.
KEYWORDS
Self-centering prefabricated steel frame, Column base connected by Semi-rigid joints,Pseudo-dynamictest, Performance-based design goal, Gap opening, Plastic strain
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