Calculation and Analysis for Limit Bearing Capacity of Steel Tube Reinforced Short Column Piers by Limit Equilibrium Method

Abstract:

The existed concrete column reinforced by external steel tube is a common reinforcement technique and widely used in engineering. However, the computational theory on bearing capacity of the reinforced structure is insufficient at present. In the condition that the existed column concrete before completely unloading is reinforced or the initial stress level is low, the mechanics characteristics of reinforced components were analyzed based on the limit equilibrium method, and then the computational equations of the bearing capacity subjected to axial loading after the short column pier reinforced structure had been deduced. Comparing the calculation results with the correspondent experimental data shows that the deduced equation can provide reasonable results for predicting the axial bearing capacity, which provides a support for the computation of the bearing capacity for the reinforcement pier in practice.

• Periodical: Applied Mechanics and Materials (Volumes 744-746)
• Pages: 8-12
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.744-746.8
• Online since: March 2015
• Authors: Jin Sheng Liu, Bo Qiu*, Yong Jiu Qian
• Keywords: Bridge Piers, Bridge Reinforcement, Limit Equilibrium Method, Steel Tube Reinforcement

References

[1] L.H. Han, Y.F. Yang: Modern steel tube-confined concrete structure technique (China Architecture & Building Press, Beijing 2004).

[2] S.T. Zhong: Steel tube-confined concrete structure, (Tsinghua University Press, Beijing 2003).

[3] S.H. Cai: Modern steel tube-confined concrete structure (China Communications Press Press, Beijing 2003).

[4] S.H. Cai, Z.S. Jiao: Beijing: Journal of Building Structures. Forum Vol. 13-29 (1984), p.5 (6).

[5] W.B. Yuan: The calculation of structure bearing capacity by limit equilibrium method (China Architecture & Building Press, Beijing 1958).

[6] W. Liu: Research on work mechanicm of concrete-filled steel tube structure under local compression, (Fuzhou University press, Fuzhou, 2005).