5-7 December 2018 - Hong Kong, China

CONFERENCE PAPERS

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


THE INFLUENCE OF SECTION ASPECT RATIO ON THE MECHANICAL PERFORMANCE OF PARTIALLY ENCASED COMPOSITE COLUMNS

 

Jie Liu1*, Yiyi Chen1

1 State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai, China

 E-mails: This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it.

DOI:10.18057/ICASS2018.P.061

ABSTRACT:

At present, the research on partially encased composite (PEC) columns mainly focuses on square section, few studies on the columns with different section aspect ratio. However, in resident buildings, the requirement to conceal column into walls ask variety of aspect ratio of column section. The different aspect ratio will lead to different constraint of steel flange on the concrete, and when the aspect ratio is different, the load proportion that concrete bear will be different, so the mechanical properties of the column will be different. At the same time, the width-thickness ratio of flange, the spacing of links will affect the confinement of concrete, and then affect the mechanical behaviour of the PEC columns. In this paper, the finite element model with dynamic explicit method was developed and it was validated by test results in both capacity and deformability of the PEC columns. Then it was used to explore the influence of section aspect ratio, width-thickness of flange and link spacing on the distribution of concrete confinement zones and mechanics performance of PEC columns.

Keywords:

Partially encased composite column; Aspect ratio; Finite element method; Confinement of concrete

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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