Analysis of Axial Bearing Capacity of Concrete-Filled Steel Tube Hollow Columns

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Abstract:

Based on the triple shear unified yield criterion, the mechanical behavior of the concrete-filled steel tube columns was analyzed. The calculation formulas of axial bearing capacity of the concrete-filled steel tube columns were deduced with considerations of the restriction effects of steel tube and the effects of the intermediate principal stressed. The results show that the intermediate principal stress effect parameter b has influences on the ultimate bearing capacity. With the increase of the intermediate principal stress effect parameter b, the ultimate bearing capacity of the concrete-filled steel tube columns increases too. The results show that formula deduced in the paper has good applicability and the solution has an important practical value.

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Periodical:

Advanced Materials Research (Volumes 639-640)

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770-773

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Online since:

January 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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