Reference Type: Journal Article Record Number: 1 Author: Fan, S. G., Li, S., He, B. B., Jia, L. L. and Ding, R. M. Year: 2019 Title: FIRE RESISTANCE PERFORMANCE ANALYSIS OF HIGH-STRENGTH STEEL Q550 COLUMNS UNDER AXIAL COMPRESSION Journal: Advanced Steel Construction Volume: 15 Issue: 2 Pages: 185-191 Date: Jun Type of Article: Article Short Title: FIRE RESISTANCE PERFORMANCE ANALYSIS OF HIGH-STRENGTH STEEL Q550 COLUMNS UNDER AXIAL COMPRESSION Alternate Journal: Adv. Steel Constr. ISSN: 1816-112X DOI: 10.18057/ijasc.2019.15.2.8 Accession Number: WOS:000469776700008 Keywords: High-strength steel Q550 Axial compression Fire resistance performance Critical temperature mechanical-properties recommendations Construction & Building Technology Engineering Materials Science Abstract: With the improvement in steel production technology, high-strength steel, as a building material, has become a new current in civil engineering. To reveal the mechanical behavior of axially compressed high-strength steel Q550 (a nominal yield strength f(y)>= 550 MPa) columns without axial constraint at elevated temperatures, the finite element method was used to establish several transient analysis models with the software ABAQUS. The accuracy of the finite element model was verified by comparison with the results of prior experiments. To investigate the mechanical behavior and failure mechanism of high-strength steel Q550 columns in fire, the fire resistance of Q550 columns was numerically simulated and analyzed based on effective finite element models. The effects of the parameters on the fire resistance of high-strength steel Q550 column with a rectangular hollow section under axial compression were studied with an emphasis on the load ratio, initial imperfection amplitude, slenderness ratio and sectional dimensions. The results indicate that the load ratio is the main factor affecting the fire resistance performance of high-strength steel Q550 columns. Copyright (c) 2019 by The Hong Kong Institute of Steel Construction. All rights reserved. Notes: ISI Document Delivery No.: IA7ZL Times Cited: 0 Cited Reference Count: 30 Fan, Sheng-Gang Li, Shuai He, Bing-Bing Jia, Lian-Lian Ding, Run-Min National Natural Science Foundation of China [51378105, 51478106]; National Key Research and Development Program of China [2017YFC0703802]; Jiangsu Provincial Qing Lan Project; Jiangsu provincial Six Talent Peaks Project [JZ-001] The authors gratefully acknowledge the financial support of the National Natural Science Foundation of China (No. 51378105 and 51478106). This work is sponsored by the National Key Research and Development Program of China (Grant No. 2017YFC0703802). The research was sponsored by Jiangsu Provincial Qing Lan Project and Jiangsu provincial Six Talent Peaks Project (No. JZ-001). These financial supports are gratefully acknowledge 0 1 Hong kong inst steel construction Hunghom kowloon URL: ://WOS:000469776700008 Author Address: [Fan, Sheng-Gang; Li, Shuai; He, Bing-Bing; Jia, Lian-Lian; Ding, Run-Min] Southeast Univ, Sch Civil Engn, Minist Educ, Key Lab Concrete & Prestressed Concrete Struct, Nanjing 210096, Jiangsu, Peoples R China. Fan, SG (reprint author), Southeast Univ, Sch Civil Engn, Minist Educ, Key Lab Concrete & Prestressed Concrete Struct, Nanjing 210096, Jiangsu, Peoples R China. 101010393@seu.edu.cn Language: English