Partial-interaction analysis with push-out tests

• Published in: Journal of constructional steel research Vol. 61; no. 9; pp. 1318 - 1331
• Main Authors: Jeong, Youn-Ju, Kim, Hyeong-Yeol, Kim, Sang-Hyo
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.09.2005
• Subjects: Interface; Nonlinear; Partial-interaction; Push-out; Steel–concrete; Partial-interaction; Steel–concrete; Nonlinear; Interface; Push-out
• ISSN: 0143-974X; 1873-5983
• DOI: 10.1016/j.jcsr.2005.01.010

This paper deals with an experimental and analytical study to simulate partial-interaction behavior by using push-out results for steel–concrete composite members. In order to analyze the interface behavior of steel–concrete by the degree of interaction, a total of 9 push-out test specimens were tested. The steel–concrete interface was idealized by a number of interface elements and the properties of interface element were determined as the results of push-out tests. To validate the current study, using a commercial structural analysis program, a nonlinear structural analysis was performed for a steel–concrete composite member exclusively designed for this study, and the results were compared with the results of the flexural test. The results of this study have shown that the partial-interaction behavior of steel–concrete composite members can be efficiently and accurately predicted by the analysis method presented in this paper.