5-7 December 2018 - Hong Kong, China

CONFERENCE PAPERS

Ninth International Conference on Advances in Steel Structures (ICASS 2018)

Vol. I, pp. 3-19


FINITE ELEMENT ANALYSIS ON K-TYPE EXTERNAL BRACED STEEL ERAME SYSTEM

 

Guochang Li 1*, Fei Tian1, Zhijian Yang1, Guozhong Zhang1 and Yihe Feng2

1School of Civil Engineering, Shenyang Jianzhu University, Shenyang, China

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2Liaoning Province Shiyan High School, Shenyang, China

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DOI:10.18057/ICASS2018.P.112

ABSTRACT:

The concept of moment resisting frames with K-type external braces is proposed to increase the lateral stiffness, which has short external span and large lateral stiffness. In order to investigate the lateral stiffness, overstrength coefficient and the reduction factor of K-type external brace under horizontal load, finite element model was established to study the different slenderness ratios (from50 to 150) of K-type external steel braced frames. The results showed that the lateral load and displacement curve can be divided into elastic stage, the buckling of the compressive brace-yield of the tensile brace stage and plastic stage. The overstrength of K-bracing is related to the potential bearing capacity of the frame when the compressive brace buckled, and the potential growth of the tensile brace. The overstrength coefficient increases with increasing of the brace slenderness ratio. The range of recommended values of slenderness ratios of K-type external steel braces and design values of unbalanced force of column sections are proposed.

Keywords:

K-type external steel brace; lateral stiffness; lateral strength; overstrength coefficient; reduction factor; Finite Element Analysis

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IMPORTANT DATES

First call for paper:
1 January 2018
Abstract submission: (CLOSED)
1 April 2018
Notification of abstract acceptance:
on or before 16 April 2018 
Full paper submission: 
15 July 2018
Online Registration Begins:
1 August 2018
Notification of full paper acceptance:
31 August 2018
Early bird registration:
on or before 7 September 2018
Online Registration Closes:
31 October 2018
Announcement of programme:
1 November 2018
ICASS2018 December 05, 2018 08:00 AM