Analysis of Ultimate Loading Capacity for Circular RPC Filled Steel Tube Stub Columns under Axial Compression

YAN Zhi-gang; ZHANG Wu-qi; AN Ming-zhe

Journal of Beijing University of Technology > 2011 > 37(3): 361-367.

YAN Zhi-gang, ZHANG Wu-qi, AN Ming-zhe. Analysis of Ultimate Loading Capacity for Circular RPC Filled Steel Tube Stub Columns under Axial Compression[J]. Journal of Beijing University of Technology, 2011, 37(3): 361-367.

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Analysis of Ultimate Loading Capacity for Circular RPC Filled Steel Tube Stub Columns under Axial Compression

1. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China;
2. Engineering Management Center of the Ministry of Railways, PRC, Beijing 100844, China

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Received Date: November 14, 2009
Available Online: November 18, 2022

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In order to study the axial compressive mechanical performance of reactive powder concrete (RPC) filled steel tube,an experiment on circular RPC filled steel tube stub columns is conducted to test the deformation and the strain under the axial full section load.The test results show that the main deformation is in elastic stage when the load is up to its ultimate loading capacity and then the load declines to be 80%-90% of the ultimate load.The empirical formula of ultimate loading capacity for the RPC filled steel tube stub columns is suggested according to the formula of CECS 104: 99 with the referenced tested data.The strength of the concrete and the coefficient α used for CECS 104: 99 formula are extended in order to apply the empirical formula to the engineering design.The tested data is recalculated with the revised α.The calculated results are in good agreement with the tested data.It satisfies with the engineering requirements.
- concrete filled steel tube column,
- reactive powder concrete,
- ultimate loading capacity,
- axial compression

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