Analysis on design parameters of seismic performance based on damage for recycled aggregate concrete-filled steel tube column
International Journal of Structural Integrity
ISSN: 1757-9864
Article publication date: 24 September 2019
Issue publication date: 18 March 2020
Abstract
Purpose
The purpose of this paper is to establish the horizontal displacement angle limit values under different performance level, use damage as the quantitative index of performance level and determine the design principle of the RACFST column for performance-based seismic fortification target based on the damage.
Design/methodology/approach
The paper is based on the seismic performance test of the RACFST column.
Findings
First, three-level seismic are introduced into the performance design foundation of the RACFST column. Second, the performance level of the RACFST column is divided into five grades: normal use, temporary use, use after repair, life safety and prevention of collapse. Third, the seismic performance targets of RACFST columns are divided into four categories: unacceptable situation, basic performance target, important performance target and special performance target.
Originality/value
The initial damage of the recycled aggregate occurs in the process of crushing and screening, and the damage evolution and development of the RACFST column occur under cyclic load. This is one of the problems that should not be avoided in the design of the seismic performance of the RACFST column. New levels are introduced in the performance design foundation of the RACFST column.
Keywords
Acknowledgements
This work was financially supported by the Science and Technology Break-through Project of Henan Province (172102210285) and Key Scientific Research Project Plan for Colleges and Universities in Henan Province (20A560012) and the Safe Production Project of Key Technology for Major Accident Prevention and Control (Henan-0006-2016AQ). All these are gratefully appreciated.
Citation
Zhang, X., Deng, D. and Yang, J. (2020), "Analysis on design parameters of seismic performance based on damage for recycled aggregate concrete-filled steel tube column", International Journal of Structural Integrity, Vol. 11 No. 2, pp. 185-201. https://doi.org/10.1108/IJSI-04-2019-0029
Publisher
:Emerald Publishing Limited
Copyright © 2019, Emerald Publishing Limited