Paper Information

Journal:   INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING   MARCH 2016 , Volume 8 , Number 1; Page(s) 45 To 51.
 
Paper: 

CYCLIC PERFORMANCE OF CONCRETE-FILLED STEEL BATTEN BUILT-UP COLUMNS

 
 
Author(s):  RAZZAGHI M.S.*, KHALKHALIHA M., AZIMINEJAD A.
 
* QAZVIN BRANCH, ISLAMIC AZAD UNIVERSITY, QAZVIN, IRAN
 
Abstract: 

Steel built-up batten columns are common types of columns in Iran and some other parts of the world.
They are economic and have acceptable performance due to gravity loads. Although several researches have been conducted on the behavior of the batten columns under axial loads, there are few available articles about their seismic performance. Experience of the past earthquakes, particularly the 2003 Bam earthquake in Iran, revealed that these structural members are seismically vulnerable. Thus, investigation on seismic performance of steel batten columns due to seismic loads and providing a method for retrofitting them are important task in seismic-prone areas.
This study aims to investigate the behavior of concrete filled batten columns due to combined axial and lateral loads. To this end, nonlinear static analyses were performed using ANSYS software. Herein, the behaviors of the steel batten columns with and without concrete core were compared. The results of this study showed that concrete-filled steel batten columns, particularly those filled with high-strength concrete, may cause significant increases in energy absorption and capacity of the columns.
Furthermore, concrete core may improve post-buckling behavior of steel batten columns.

 
Keyword(s): STEEL BATTEN COLUMNS BUCKLING NUMERICAL ANALYSIS LATERAL LOADS
 
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