RESPONSE OF STEEL BOX COLUMNS IN FIRE CONDITIONS

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YAHYAI MAHMOOD; REZAEIAN ABBAS; SAFAEIAN MAHDI

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Journal: JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING Year:2017 | Volume:4 | Issue:1 (10) Page(s): 101-112

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Title

RESPONSE OF STEEL BOX COLUMNS IN FIRE CONDITIONS

Author(s)

YAHYAI MAHMOOD | REZAEIAN ABBAS | SAFAEIAN MAHDI | Issue Writer Certificate

Keywords

STEEL COLUMNQ1

LOCAL BUCKLINGQ2

CRITICAL TEMPERATUREQ1

FINITE ELEMENT METHODQ2

FIREQ2

Abstract

Effect of elevated temperatures on the mechanical properties of steel, brings the importance of investigating the effect of FIRE on the steel structures anxiously. Columns, as the main load-carrying part of a structure, can be highly vulnerable to the FIRE. In this study, the behavior of steel gravity columns with box cross section exposed to FIRE has been investigated. These kinds of columns are widely used in common steel structures design in Iran. In current study, the behavior of such columns in FIRE conditions is investigated through the FINITE ELEMENT METHOD. To perform this, the finite element model of a STEEL COLUMN which has been previously tested under FIRE condition, was prepared. Experimental loading and boundary conditions were considered in the model and was analyzed. Results were validated by experimental data and various specimens of gravity box columns were designed according to the Iran’s steel buildings code, and modeled and analyzed using Abaqus software. The effect of width to thickness ratio of column plates, the load ratio and slenderness on the ultimate strength of the column was investigated, and the endurance time was estimated under ISO 834 standard FIRE curve. The results revealed that an increase in width to thickness ratio and load ratio leads to reduction of endurance time and the effect of width to thickness ratio on the ultimate strength of the column decreases with temperature increase.

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APA: Copy

YAHYAI, MAHMOOD, REZAEIAN, ABBAS, & SAFAEIAN, MAHDI. (2017). RESPONSE OF STEEL BOX COLUMNS IN FIRE CONDITIONS. JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING, 4(1 (10) ), 101-112. SID. https://sid.ir/paper/252583/en

Vancouver: Copy

YAHYAI MAHMOOD, REZAEIAN ABBAS, SAFAEIAN MAHDI. RESPONSE OF STEEL BOX COLUMNS IN FIRE CONDITIONS. JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING[Internet]. 2017;4(1 (10) ):101-112. Available from: https://sid.ir/paper/252583/en

IEEE: Copy

MAHMOOD YAHYAI, ABBAS REZAEIAN, and MAHDI SAFAEIAN, “RESPONSE OF STEEL BOX COLUMNS IN FIRE CONDITIONS,” JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING, vol. 4, no. 1 (10) , pp. 101–112, 2017, [Online]. Available: https://sid.ir/paper/252583/en

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