Abstract

Strength as well as behaviour of 16 circular concrete filled steel tube (CFST) sections submitted to axial compressive load was presented in this paper. Specimens having length to diameter (L/D) ratios of 3, 4, 5 and 6 with diameter to thickness (D/t) ratios of 38 as well as 25.33 with same outer diameter of 76 mm and two different wall thickness of 2 mm and 3 mm were considered to study the influence of column parameters and effect of confinement (Ꝣ). The ultimate capacities of CFST columns were compared with Eurocode-4, Australian Standards (AS 5100), American Code (AISC 360 - 10) and Chinese code (DBJ13-51) predictions. Results showed that axial compressive loads of specimens with more wall thickness were found to be greater than lesser wall thickness specimens. The parameters that affect the column behaviour directly are relative slenderness ratio (λ) and L/D. Eurocode-4 results found to be conservative, Australian code and American Code underestimated while Chinese code overestimated the section capacity. Further, a finite element model of CFST specimens was developed with ABAQUS to check the accuracy of test results, buckling patterns and displacement curves.

Keyword

Concrete filled steel tube, Confinement, Axial compressive load, Relative slenderness ratio.

Cite this article

Shah SM, Ganesh GM

Refference

[1][1]Ekmekyapar T, Al-Eliwi BJ. Experimental behaviour of circular concrete filled steel tube columns and design specifications. Thin-Walled Structures. 2016; 105:220-30.

[2][2]Evirgen B, Tuncan A, Taskin K. Structural behavior of concrete filled steel tubular sections (CFT/CFSt) under axial compression. Thin-Walled Structures. 2014; 80:46-56.

[3][3]Han LH, You JT, Lin XK. Experimental behaviour of self-consolidating concrete (SCC) filled hollow structural steel (HSS) columns subjected to cyclic loadings. Advances in Structural Engineering. 2005; 8(5):497-512.

[4][4]Lai Z, Varma AH, Zhang K. Noncompact and slender rectangular CFT members: Experimental database, analysis, and design. Journal of Constructional Steel Research. 2014; 101:455-68.

[5][5]Lai Z, Varma AH. Noncompact and slender circular CFT members: experimental database, analysis, and design. Journal of Constructional Steel Research. 2015; 106:220-33.

[6][6]Han LH, Li W, Bjorhovde R. Developments and advanced applications of concrete-filled steel tubular (cfst) structures: members. Journal of Constructional Steel Research. 2014; 100:211-28.

[7][7]Abed F, AlHamaydeh M, Abdalla S. Experimental and numerical investigations of the compressive behavior of concrete filled steel tubes (CFSTs). Journal of Constructional Steel Research. 2013; 80:429-39.

[8][8]Yu ZW, Ding FX, Cai CS. Experimental behavior of circular concrete-filled steel tube stub columns. Journal of Constructional Steel Research. 2007; 63(2):165-74.

[9][9]Dundu M. Compressive strength of circular concrete filled steel tube columns. Thin-Walled Structures. 2012; 56:62-70.

[10][10]Giakoumelis G, Lam D. Axial capacity of circular concrete-filled tube columns. Journal of Constructional Steel Research. 2004; 60(7):1049-68.

[11][11]Griffis LF, Hajjar JL, Hazel PM, Janowiak MV, Kloiber RC, Larson LF, et al. specification-for-structural-steel-buildings-360-10. pdf.

[12][12]Wang W, Ma H, Li Z, Tang Z. Size effect in circular concrete-filled steel tubes with different diameter-to-thickness ratios under axial compression. Engineering Structures. 2017; 151:554-67.

[13][13]Hu HT, Huang CS, Wu MH, Wu YM. Nonlinear analysis of axially loaded concrete-filled tube columns with confinement effect. Journal of Structural Engineering-ASCE. 2003; 129(10):1322-9.

[14][14]Ahmad S, Kumar A, Kumar K. Axial performance of GGBFS concrete filled steel tubes. Structures 2020; 23:539-50. Elsevier.

[15][15]Li N, Lu Y, Li S, Gao D. Axial compressive behaviour of steel fibre reinforced self-stressing and self-compacting concrete-filled steel tube columns. Engineering Structures. 2020.

[16][16]Liao J, Li YL, Ouyang Y, Zeng JJ. Axial compression tests on elliptical high strength steel tubes filled with self-compacting concrete of different mix proportions. Journal of Building Engineering. 2021.

[17][17]Chen J, Chan TM, Chung KF. Design of square and rectangular CFST cross-sectional capacities in compression. Journal of Constructional Steel Research. 2021.

[18][18]Zhu JY, Chen J, Chan TM. Analytical model for circular high strength concrete filled steel tubes under compression. Engineering Structures. 2021.

[19][19]Shen M, Huang W, Liu J, Zhou Z. Axial compressive behavior of rubberized concrete-filled steel tube short columns. Case Studies in Construction Materials. 2022.

[20][20]Reddy GS, Bolla M, Patton ML, Adak D. Comparative study on structural behaviour of circular and square section-concrete filled steel tube (CFST) and reinforced cement concrete (RCC) stub column. Structures 2021; 29:2067-81. Elsevier.

[21][21]Liu Z, Lu Y, Li N, Zong S. Experimental investigation and computational simulation of slender self-stressing concrete-filled steel tube columns. Journal of Building Engineering. 2022; 48:103893.

[22][22]Zhang J, Ma L, Zhou C, Lee D, Filippou FC. Experimental study of axial compression behavior of circular concrete-filled steel tubes after being loaded at an early age. Construction and Building Materials. 2021.

[23][23]Fang H, Visintin P. Structural performance of geopolymer-concrete-filled steel tube members subjected to compression and bending. Journal of Constructional Steel Research. 2022.

[24][24]Liu Z, Lu Y, Li S, Yi S. Behavior of steel tube columns filled with steel-fiber-reinforced self-stressing recycled aggregate concrete under axial compression. Thin-Walled Structures. 2020.

[25][25]Das CS, Dey T, Dandapat R, Mukharjee BB, Kumar J. Performance evaluation of polypropylene fibre reinforced recycled aggregate concrete. Construction and Building Materials. 2018; 189:649-59.

[26][26]Butler L, West JS, Tighe SL. The effect of recycled concrete aggregate properties on the bond strength between RCA concrete and steel reinforcement. Cement and Concrete Research. 2011; 41(10):1037-49.

[27][27]Li LJ, Tu GR, Lan C, Liu F. Mechanical characterization of waste-rubber-modified recycled-aggregate concrete. Journal of Cleaner Production. 2016; 124:325-38.

[28][28]Yang YF, Han LH. Experimental behaviour of recycled aggregate concrete filled steel tubular columns. Journal of Constructional Steel Research. 2006; 62(12):1310-24.

[29][29]Lu Y, Liu Z, Li S, Li N. Bond behavior of steel fibers reinforced self-stressing and self-compacting concrete filled steel tube columns. Construction and Building Materials. 2018; 158:894-909.

[30][30]Li S, Liu Z, Lu Y, Zhu T. Shear performance of steel fibers reinforced self-confinement and self-compacting concrete-filled steel tube stub columns. Construction and Building Materials. 2017; 147:758-75.

[31][31]Chen P, Wang Y, Zhang S. Size effect prediction on axial compression strength of circular CFST columns. Journal of Constructional Steel Research. 2020.

[32][32]Dong H, Chen X, Cao W, Zhao Y. Bond behavior of high-strength recycled aggregate concrete-filled large square steel tubes with different connectors. Engineering Structures. 2020.

[33][33]Dong H, Chen X, Cao W, Zhao Y. Bond-slip behavior of large high-strength concrete-filled circular steel tubes with different constructions. Journal of Constructional Steel Research. 2020.

[34][34]Wang X, Liu Y, Li Y, Lu Y, Li X. Bond behavior and shear transfer of steel section-concrete interface with studs: testing and modeling. Construction and Building Materials. 2020.

[35][35]Qu X, Liu Q. Bond strength between steel and self-compacting lower expansion concrete in composite columns. Journal of Constructional Steel Research. 2017; 139:176-87.

[36][36]Shah SM, Ganesh GM. Influence of parameters on the strength and behavior of concrete filled steel tube specimens subjected to axial compression and cyclic loading. Materials Today: Proceedings. 2022.

[37][37]Wang X, Fan F, Lai J. Strength behavior of circular concrete-filled steel tube stub columns under axial compression: a review. Construction and Building Materials. 2022.

[38][38]Yu F, Chen L, Bu S, Huang W, Fang Y. Experimental and theoretical investigations of recycled self-compacting concrete filled steel tubular columns subjected to axial compression. Construction and Building Materials. 2020.

[39][39]Kwan AK, Dong CX, Ho JC. Axial and lateral stress–strain model for concrete-filled steel tubes. Journal of Constructional Steel Research. 2016; 122:421-33.

[40][40]Lai MH, Song W, Ou XL, Chen MT, Wang Q, Ho JC. A path dependent stress-strain model for concrete-filled-steel-tube column. Engineering Structures. 2020.

[41][41]Su M, Cai Y, Chen X, Young B. Behaviour of concrete-filled cold-formed high strength steel circular stub columns. Thin-Walled Structures. 2020.

[42][42]https://www.phd.eng.br/wp-content/uploads/2015/12/en.1994.1.1.2004.pdf. Accessed 10 February 2022.

[43][43]AS5100. 6. Bridge design—part 6: steel and composite construction. 2004.

[44][44]Housing and Urban-Rural Development Dept. of Fujian Province. Technical specifications for concrete-filled steel tubular structures (revised version).2010.

[45][45]American institute of steel construction. AISC 360‐10 Specification for Structural Steel Buildings. 2010.