Finite element analysis on seismic performance of high strength steel frames with Y-type eccentrically braces
Lian Ming , Su Mingzhou
DOI:10.11835/j.issn.1674-4764.2016.04.014
Received December 20, 2016,Revised , Accepted , Available online July 04, 2017
Volume ,2016,Pages 86-95
- Abstract
The finite element models of test specimen were established after the shake table test of high strength steel frames with Y-type eccentrically braces (Y-HSS-EBF). A 9-story Y-HSS-EBF structure was designed and nonlinear time history analysis were conducted to study the influence of link length, link web ratio of height to thickness and ratio of depth to span to seismic performance of 9-story Y-HSS-EBFs. Results indicated that different link length and ratio of depth to span had different influence to the interstory displacement, seismic performance of link, column moment and energy dissipation capacity, but slight influence to column axial force and base shear force. Different link web ratio of height to thickness had different influence to energy dissipation capacity, but slight influence to interstory displacement, seismic performance of link, column force and base shear force. Finally, some recommendations for engineering design were given based on the analysis.