標題: Analytical model for predicting axial capacity and behavior of concrete encased steel composite stub columns
作者: Chen, CC
Lin, NJ
土木工程學系
Department of Civil Engineering
關鍵字: concrete encased;composite column;confined concrete
公開日期: 1-May-2006
摘要: The axial compressive capacity and force-deformation behavior of concrete encased steel stub columns were analytically investigated. An analytical model was developed for predicting the force-deformation response for composite stub columns with various structural steel sections and volumetric lateral reinforcement. Constitutive relationships were established for materials used in the composite cross section, which included unconfined concrete, partially and highly confined concrete, structural steel section, and longitudinal reinforcing bar. The axial capacity of composite stub columns can be determined from strengths contributed from each material component following the stress-strain relationship. Analytical results show that the axial load-carrying capacity and force-deformation behavior measured in the experiments can be accurately predicted. In addition to the lateral reinforcement, the structural steel section can provide a confinement effect on the concrete and enhance the axial capacity and post-peak strength. (c) 2005 Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.jcsr.2005.04.021
http://hdl.handle.net/11536/12270
ISSN: 0143-974X
DOI: 10.1016/j.jcsr.2005.04.021
期刊: JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
Volume: 62
Issue: 5
起始頁: 424
結束頁: 433
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