5-7 December 2018 - Hong Kong, China

CONFERENCE PAPERS

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


PARAMETER OPTIMIZATION OF BEAM-COLUMN CONNECTIONS WITH EXPANDED FLANGE IN STEEL FRAMES

 

Ma H.W. 1,2, Zhao Y. 1*, Wan Z.Q. 1 and Hu J. 3

1 School of Civil Science & Engineering, Yangzhou University, Yangzhou, China

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2 Jiangsu Hanjian Group Co., Ltd, Yangzhou, China

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3 Jiangsu BOCRE Modern Building Technology Co., Ltd, Suqian, China

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DOI:10.18057/ICASS2018.P.067

ABSTRACT:

This paper describes effect of expanded flange’s shape and size on the seismic performance   of beam-column connections with expanded flange in steel frames, and parameter optimization for expanded flange. Five specimens (one conventional beam-column connection and four beam-column connections with concave or convex arc) were designed and tested under low cyclic loading, and numerical models of connections with same conditions as specimens were established and analyzed.   Hysteretic performance of test and numerical stimulation of beam-column connections such as plastic hinge formation, hysteretic curve, skeleton curve, stiffness degradation, ductility and energy dissipation capacity were compared and analyzed, it is proved that connections with concave arc were better than two others. Based on comprehensive analysis of triaxiality ratio (Rσ), plastic equivalent strain index (PI) and cracking index (RI) of connections with concave arc, eighteen analytic models with difference of the length of line (la), the length of arc (lb), and width (c) were analyzed, the optimized parameters of expansion of beam-column connections with concave arc were given.

Keywords:

Steel frames; Expanded flange; Plastic hinge; Hysteretic curve; Ductility capacity

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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 Time's Up