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http://dx.doi.org/10.4334/JKCI.2012.24.2.129

Experimental Evaluation of Bearing and Bond Strengths in Compression Splices  

Chun, Sung-Chul (Dept. of Architectural Engineering, Mokpo National University)
Lee, Sung-Ho (Daewoo Institute of Construction Technology, Daewoo E&C Co., Ltd.)
Publication Information
Journal of the Korea Concrete Institute / v.24, no.2, 2012 , pp. 129-136 More about this Journal
Abstract
Compression splices are required for all compression members in almost all of the floors in high-rise buildings. Therefore, a clear understanding of the behavior of compression splices can provide a rational design of compression splices. Tests of compression splices with bearing only and bond only cases were conducted to investigate the component resistance characteristics of compression splices. Test results showed that the circumferential tensile stresses induced by bearing and bond overlapped at the end of the splice length deterred bond and bearing splices from developing target splicing strength when both normal bond and bearing splices were used. In particular, the bearing strength was more significantly reduced than the bond strength since the bearing relied on the limited area near the end of the splice length. However, the strength of the normal splice was always higher than the strength of the bond only or the bearing only case. Consequently, the study results showed that splice strength in compression cannot be improved by means of removing bond or bearing. In addition, the bond strength in bond only splices was nearly same as the bond strength in tension splices and the strength increase of compression splice is attributed to end bearing only characteristic.
Keywords
compression lap splice; bond; end bearing; splice length; relative displacement;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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