Reliability Analysis on Load-Bearing Capacity of Axially Loaded of Recycled Aggregate Concrete-Filled Steel Tube

Abstract:

The first degree second order moment method (JC method) is applied to analyze the reliability of recycled aggregate concrete-filled steel tube (RACFST). Several performances are studies, which are the influences of different load combinations, specific values of loads,confinement coefficients and recycled coarse aggregate replacement percentage on the reliability of the column. It is found that the reliability index varied with the load combination and specific value of loads. The analytical results indicate that the reliability index of the round steel tube is higher than square steel tube and the influence of recycled coarse aggregate replacement percentage can almost be ignored It can be concluded that the formula had great influence on reliability index and the revised formula can meet the requirements of the ductility of structure reliability.

• Periodical: Applied Mechanics and Materials (Volume 711)
• Pages: 438-443
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.711.438
• Online since: December 2014
• Authors: Rong Hua Yang*, Gao Bo Mai
• Keywords: JC Method, Recycled Aggregate Concrete-Filled Steel Tube (RACFST), Reliability Analysis, Short Columns

References

[1] Yang Y F, Han L H. Experimental behavior of recycled aggregate concrete filled steel tubular columns[J]. Journal of Construction Steel Research, 2006, 62(12): 1310-1324.

DOI: 10.1016/j.jcsr.2006.02.010

[2] Xiao J Z, Li J B, Zhang C. Mechanical properties of recycled aggregate concrete under uniaxial loading[J]. Cement and Concrete Research, 2005，35 (6): 1187-1194.

DOI: 10.1016/j.cemconres.2004.09.020

[3] Chen Zongping, Ke Xiaojun, Xue Jianyang. Mechanical performance and ultimate bearing capacity calculation of steel tube confined recycled coarse aggregate concrete [J]. China Civil Engineering Journal, 2013, 46(2): 70-77. (in Chinese).

[4] Ke Xiaojun, Chen Zongping, Xue Jianyang. Experimental study on the bearing capacity of recycled aggregate concrete-filled square steel tube short columns under axial compression[J]. Engineering mechanics. 2013, 30 (8) : 35-41. (in Chinese).

DOI: 10.1201/b17568-86

[5] Wu Bo, Liu Wei, Xu Zhe, Liu Qiongxiang. Experimental study on the behavior of recycled-concrete-segment/lump filled steel tubular stub columns subjected to concentrically axial load [J]. China Civil Engineering Journal, 2010, 43(2): 32-38. (in Chinese).

[6] WU Bo, LIU Wei, LIU Qiongxian. Axial behavior of thin-walled steel stub columns filled with demolished concrete segment/lump[J]. Journal of Building Structures, 2010, 31 (8): 22-28(in Chinese).

DOI: 10.4028/www.scientific.net/amr.690-693.881

[7] Zhang Z Q, Xiao S L, Lei J S. Investigation on ultimate bearing capacity of recycled aggregate concrete-filled steel tubular short columns under axial compressive load [J]. Advanced Materials Research, 2010, 160/161/162: 1205-1210.

DOI: 10.4028/www.scientific.net/amr.160-162.1205

[8] YAO Guohuang, HAI Linhai. Design method of technical specification for concrete-filled steel tubular (DBJ13 51-2003) and reliability analysis[J] . Industrial Construction, 2006: 36(1): 66-70. (in Chinese ).

[9] YU Zhiwu, HE Sasa. Reliability analysis of ultimate bearing capacity of concrete-filled tubular steel stub columns[J]. . Engineering Mechanics, 2006, 23(11): 139-144. (in Chinese ).

[10] XIAO A-lin，HE Yi-bin, GUO Jian. Reliability Analysis on ultimate bearing capacity of steel-reinforced high-strength concrete filled steel tubular slender Columns[J]. Journal of Civil Architectural & Environmental Engineering. 2009, 31(5): 31-37. (in Chinese ).

DOI: 10.1201/b19126-429

[11] GONG Jinxin. Reliability calculation methods of engineering structures[M]. Dalian: Dalian University of Technology press, 2003. (in Chinese ).

[12] Zhang Ming. Structural reliability analysis method and procedure [M]. Beijing: Science Press, 2009. (in Chinese ).

[13] Han Fudong. Mathematical statistics the basic mechanical properties of recycled concrete analysis and research on the reliability [D]. Shandong: Shandong University of Science and Technology, 2010, 5. (in Chinese ).