Mechanical properties of CFST short columns with different void ratios

• Autorzy: Song Junxi , Han Zhuowei , Wang Dawei , Lu Xiaorui

Identyfikatory

DOI

10.24425/ace.2023.146099

• Języki publikacji: EN

Abstrakty

EN

In order to study the mechanical behavior of concrete-filled steel tube(CFST) short column with different void ratios under a certain eccentricity. A fiber model of concrete-filled steel tube section with different void heights was established. Compared with existing model test data, the axial force and flexural moment strength models of concrete-filled steel tube columns with different void ratios were established. The results show that, in the case of different void ratios, the cross-section strength envelope shows an overall contraction tendency with the increase of void ratio, and each line is basically parallel. A model for calculating the coefficient of axial load degradation was established. The Han’s flexural moment strength model of the flexural component was revised, and the strength model of concrete-filled steel tube column under eccentric compression considering void ratio was established, which provides a theoretical basis and method for the safety assessment during the operation of concrete-filled steel tube arch bridges.

Słowa kluczowe

EN

concrete-filled steel tube; CFST; eccentric compression; finite element analysis; mechanical behavior; void ratio; air void

PL

rura stalowa wypełniona betonem; CFST; ściskanie mimośrodowe; analiza elementów skończonych; zachowanie mechaniczne; wskaźnik porowatości; pustka powietrzna

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2023
• Tom: Vol. 69, nr 3
• Strony: 587--596
• Opis fizyczny: Bibliogr. 23 poz., il., tab.

Twórcy

autor

Song Junxi

• Second Engineering Co.Ltd of CCCC Fourth Highway Engineering Co.Ltd, Beijing, China

• https://orcid.org/0009-0008-1168-8943

autor

Han Zhuowei

• Geotechnical and Structural Engineering Research Center, Shandong University, Jinan, China

• https://orcid.org/0000-0002-6072-2887

autor

Wang Dawei

• Geotechnical and Structural Engineering Research Center, Shandong University, Jinan, China

• https://orcid.org/0000-0003-0803-9391

autor

Lu Xiaorui

• Geotechnical and Structural Engineering Research Center, Shandong University, Jinan, China

• https://orcid.org/0009-0001-3806-4603

Bibliografia

• [1] F.J. Tokarz, “Experimental study of lateral buckling of arches”, Journal of the Structural Division, vol. 97, no. 2, pp. 545-559, 1971, doi: 10.1061/JSDEAG.0002816.
• [2] K.A. Farhan and M.A. Shallal, “Experimental behaviour of concrete-filled steel tube composite beams”, Archives of Civil Engineering, vol. 64, no. 2,pp. 235-251, 2020, doi: 10.24425/ace.2020.131807.
• [3] Z.R. Lu and C. Guo, “A study on RCFST column instability modes”, Archives of Civil Engineering, vol. 68, no. 2, pp. 211-225, 2022, doi: 10.24425/ace.2022.140638.
• [4] M.N. Baig, J.S. Fan, and J.G. Nie, “Strength of concrete filled steel tubular columns”, Tsinghua Science & Technology, vol. 11, no. 6, pp. 657-666, 2006, doi: 10.1016/S1007-0214(06)70248-6.
• [5] C.W. Roeder, B. Cameron, and C.B. Brown, “Composite action in concrete filled tubes”, Journal of Structural Engineering, vol. 125, no. 5, pp. 477-484, 1999, doi: 10.1061/(ASCE)0733-9445(1999)125:5(477).
• [6] G.C. Li, B.W. Chen, Z.J. Yang, and Y.H. Feng, “Experimental and numerical behaviour of eccentrically loaded high strength concrete filled high strength square steel tube stub columns”, Thin-Walled Structures, vol. 127, no. 6, pp. 483-499, 2018, doi: 10.1016/j.tws.2018.02.024.
• [7] S.L. Chen, C. Hou, H. Zhang, and L.H. Han, “Structural behaviour and reliability of CFST trusses with random initial imperfections”, Thin-Walled Structures, vol. 143, no. 10, 2019, doi: 10.1016/j.tws.2019.106192.
• [8] B. Yan, X.H. Zhou, and J.P. Liu, “Behavior of circular tubed steel-reinforced-concrete slender columns under eccentric compression”, Journal of Constructional Steel Research, vol. 155, no. 4, pp. 342-354, 2019, doi: 10.1016/j.jcsr.2018.11.018.
• [9] X. Nie, Y.H. Wang, S. Li, and J. Chen, “Coupled bending-shear-torsion bearing capacity of concrete filled steel tube short columns”, Thin-Walled Structures, vol. 123, no. 2, pp. 305-316, 2018, doi: 10.1016/j.tws.2017.11.026.
• [10] F.X. Ding, J. Liu, X.M. Liu, Z.W. Yu, and D.W. Li, “Mechanical behavior of circular and square concrete filled steel tube stub columns under local compression”, Thin-Walled Structures, vol. 94, no. 11, pp. 155-166, 2015, doi: 10.1016/j.tws.2015.04.020.
• [11] D.B. la Poutre, H.H. Snijder, and J.C.D. Hoenderkamp, “Spatial stability experiment on a semicircular steel arch”, in Proceedings of Advances in Structures-Steel, Concrete, Composite and Aluminium. Sydney: A.A. Balkema Publisher, 2003, pp. 207-212.
• [12] F.Y. Liao, L.H. Han, and S.H. He, “Behavior of CFST short column and beam with initial concrete imperfection: experiments”, Journal of Constructional Steel Research, vol. 67, no. 12, pp. 1922-1935, 2011, doi: 10.1016/ j.jcsr.2011.06.009.
• [13] J.Q. Xue, B. Briseghella, and B.C. Chen, “Effects of debonding on circular CFST stub columns”, Journal of Constructional Steel Research, vol. 69, no. 1, pp. 64-76, 2012, doi: 10.1016/j.jcsr.2011.08.002.
• [14] Z.Y. Liu, “Experiment study on interfacial normal bond strength of concrete filled steel tube”, Advanced Materials Research, vol. 594-597, pp. 947-954, 2012, doi: 10.4028/www.scientific.net/AMR.594-597.947.
• [15] Q.H. Shen, J.F. Wang, and J.Z. Li, “Experimental, numerical and design investigations on the performance of axially-loaded ECFT stub columns with spherical-cap gaps”, Structures, vol. 46, no. 12, pp. 109-127, 2022, doi: 10.1016/j.istruc.2022.10.022.
• [16] J.F. Wang, W. Liu, Q.H. Shen, J.Z. Li, and Z.H. Han, “Experimental investigation and theoretical analysis of axially-loaded concrete-filled elliptical tubes with circumferential gaps”, Thin-Walled Structures, vol. 181, no. 12, 2022, doi: 10.1016/j.tws.2022.110100.
• [17] F.Y. Liao and Y.J. Li, “Experimental behaviour of concrete filled steel tubes (CFST) with initial concrete imperfection subjected to eccentric compression”, in Trans Tech Publications. Advanced Building Materials and Sustainable Architecture: Selected, peer reviewed papers from the 2nd International Conference on Civil Engineering, Architecture and Building Materials (CEABM 2012), May 25-27, 2012, Yantai, China. 2012, pp. 33-36.
• [18] F.Y. Liao, L.H. Han, and Z. Tao, “Behaviour of CFST stub columns with initial concrete imperfection: Analysis and calculations”, Thin-Walled Structures, vol. 70, no. 9, pp. 57-69, 2013, doi: 10.1016/j.tws.2013.04.012.
• [19] L.H. Han, Y.Ye, and F.Y. Liao, “Effects of core concrete initial imperfection on performance of eccentrically loaded CFST columns”, Journal of Structural Engineering, vol. 142, no. 12, pp. 57-69, 2015, doi: 10.1061/(ASCE)ST.1943-541X.0001604.
• [20] B.C. Chen, Y.J. Chen, L.Y. Wang, and L.H. Han, “Study of stress-strain relation of concrete filled steel tubular eccentric compression column”, China Journal of Highway and Transport, vol. 17, no. 1, pp. 28-32, 2004, doi: 10.19721/j.cnki.1001-7372.2004.01.007.
• [21] C.A. Zeris and S.A. Mahin, “Analysis of reinforced concrete beam-columns under uniaxial excitation”, Journal of Structural Engineering, vol. 114, no. 4, pp. 804-820, 1988, doi: 10.1061/(ASCE)0733-9445(1988)114:4(804).
• [22] E. Spacone, F.C. Filippou, and F.F. Taucer, “Fibre beam-column model for non-linear analysis of R/C frames: Part 1. Formulation”, Earthquake Engineering & Structural Dynamics, vol. 25, no. 7, pp. 711-725, 1996, doi: 10.1002/(SICI)1096-9845(199607)25:7<711::AID-EQE576>3.0.CO;2-9.
• [23] X.P. Liu, C.H. Tang, S. Yang, K.H. Cai, and A.R. Liu, “Research on the influence of void ratio on the mechanical properties of eccentrically compressed concrete filled steel tubes”, Journal of Sun Yat sen University (Natural Science Edition), vol. 9, no. 3, pp. 40-44, 2010, doi: 10.3969/j.issn.1671-4229.2010.03.010.