Cyclic Testing for Structural Detail Improvement of CFT Column-Foundation Connections

Hee-Ju Kim, Jong-Wan Hu and Won-Sup Hwang
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Hee-Ju Kim: Department of Civil Engineering, Inha University, Incheon 402-751, Korea
Jong-Wan Hu: Department of Civil and Environmental Engineering, College of Urban Science, Incheon National University, Incheon 406-840, Korea
Won-Sup Hwang: Department of Civil Engineering, Inha University, Incheon 402-751, Korea

Sustainability, 2015, vol. 7, issue 5, 1-22

Abstract: In this study, concrete-filled tube (CFT) column-to-foundation connections were investigated experimentally to improve the design of their structural details. Initially, five different types of foundation connections, which were classified according to the design parameters incorporating the types of anchor bolts, shear connectors, base members, and reinforced bars used, were fabricated. After conducting structural experiments on these foundation models, the performance and capacity of the individual model cases from the test results were compared with each other. The test results showed that some of the test models designed according to current design guidelines had problems related to the structural details. Therefore, this study proposed an adequate design methodology to improve the performance of foundation components, such as high tension bolt, base frame members, and embedded plate. An analytical investigation of the force-deformation relationship as well as the characteristic strains distributed over the individual foundation components was performed.

Keywords: concrete-filled tube (CFT); base plate; anchor bolts; design parameters (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2015
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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