Vol. 15, No. 1, pp. 30-36(2019)
DEVELOPMENTS AND BEHAVIORS OF SLIP-RELEASED NOVEL
CONNECTORS IN STEEL-CONCRETE COMPOSITE STRUCTURES
Yang Ding1, 2, Xiao-Meng Dai1 and Jia-Bao Yan1, 2 *
1 School of civil engineering, Tianjin University, Tianjin 300072, China
2 Key Laboratory of Coast Civil Structure Safety of Ministry of Education, Tianjin University, Tianjin 300072, China
*(Corresponding author: E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it. )
Received: 12 June 2017; Revised: 28 October 2017; Accepted: 17 December 2017
DOI:10.18057/IJASC.2019.15.1.5
 View Article |
Export Citation: Plain Text | RIS | Endnote |
ABSTRACT
Effective connection between steel beam and concrete slab is the key issue for steel -concrete composite structures. The slip-released connectors were developed to overcome cracking of the concrete in the hogging moment region of a continuous beam. A full-scale push-out test with two specimens was conducted to investigate the slipping behaviors of the connectors. Test results offered useful information on the slipping behaviors of the connectors in terms of load-slip behaviors and failure modes. FE models were developed for the slip-released connectors and the accuracy of the FE simulation was checked by the reported test results. Two concepts of the connectors, i.e., an improved version with foamed plastic blocks covered by protecting shell and the sliding connectors were developed to improve the structural performances of the slip-released connectors. Numerical simulations results showed that both concepts could effectively release the shear force within their slipping allowed limit and could achieve the performance requirement of releasing slip.
KEYWORDS
Composite structures, Slip-released connectors, Push-out test, Finite element analysis, Shear resistance
REFERENCES
[1] Spremic M., Markovic Z., Veljkovic M., et al., D. “Push-out experiments of headed shear studs in group arrangements”, Advanced Steel Construction, 9(2), 139-160, 2013.
[2] Han Q.H., Wang Y.H., Xu J., et al., “Static behavior of stud shear connector in elastic concrete-steel composite beams”, Journal of Constructional Steel Research, 113, 115-126, 2015
[3] Lin Z.F., Liu Y.Q. and Roeder C.W., “Behavior of stud connections between concrete slabs and steel girders under bending moment”, Engineering Structures, 117, 130-144, 2016
[4] Ju X.C. and Zeng Z.B., “Study on uplift performance of stud connector in steel-concrete composite structures”, Steel Composite Structures, 18(5), 1279-1290, 2015.
[5] Chu T.H.V., Bui D.V., Le V.P.N., et al., Ahn, J.H. and Dao, D.K., “Shear resistance behaviors of a newly puzzle shape of crestbond rib shear connector: An experimental study”, Steel Composite Structures, 21(5), 1157-1182, 2016.
[6] Chung C.H., Lee J. and Kim J.S., “Shear strength of T-type Perfobond rib shear connectors”, KSCE Journal of Civil Engineering, 20(5), 1824–1834, 2016.
[7] Henderson I.E.J., Zhu X.Q., Uy B., et al., “Dynamic behavior of steel-concrete composite beams with different types of shear connectors, Part I: Experimental study”, Engineering Structures, 103, 198-307, 2015.
[8] Henderson I.E.J., Zhu X.Q., Uy B., et al., “Dynamic behavior of steel-concrete composite beams with different types of shear connectors. Part II: Modelling and comparison”, Engineering Structures, 103, 308-317, 2015.
[9] Dai X.H., Lam D. and Saveri E., “Effect of concrete strength and stud collar size to shear capacity of demountable shear connectors”, Journal of Bridge Engineering, 141(11), 04015025, 2015.
[10] Yan J.B., Liew J.Y.R. and Zhang M.H., “Shear-tension interaction strength of J-hook connectors in steel-concrete-steel sandwich structure”, Advanced Steel Construction, 11(1), 72-93. 2015.
[11] Yan J.B., Liew J.Y.R., Sohel K.M.A., et al., “Push-out tests on J-hook connectors in steelconcrete sandwich structure”, Materials and Structures, 47, 1693-1714, 2014.
[12] He S.H., Fang Z., Fang Y.W., et al., “Experimental study on perfobond strip connector in steel concrete joints of hybrid bridges”, Journal of Constructional Steel Research, 118, 169-179, 2016.
[13] Zona A. and Ranzi G., “Shear connection slip demand in composite steel–concrete beams with solid slabs”, Journal of Constructional Steel Research, 102, 266-281, 2014.
[14] Lin W.W. and Yoda T., “Experimental and numerical study on mechanical behavior of composite girders under hogging moment”, Advanced Steel Construction, 9(4), 309-333, 2013.
[15] Abe H. and Hosaka T., “Flexible shear connectors for railway composite girder bridges”, Composite Construction in Steel and Concrete IV, ASCE, Reston, VA, 71-80, 2002.
[16] Nie J.G., Lin Y.X., Tao M.X., et al., “Uplift-Restricted and Slip-Permitted T-Shape Connectors”, ASCE, Journal of Bridge Engineering, 20(4), 04014073, 2015.
[17] GB/T 228.1 -2010, Metallic materials -Tensile testing -Part 1: Method of test at room temperature. 2010, General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Beijing, China.
[18] GB/T50081 -2002, Standard for test method of mechanical properties on ordinary concrete , Ministry of Construction of China, Beijing, China, 2002.
[19] Luo G.L., “Numberical Simulation of Haihe Bridge Based on Multi -scale Model” , Tianjin University, Tianjin, China, 2015 .
[20] Lee P.G., Shim C.S. and Chang S.P. “Static and fatigue behavior of large stud shear connectors for steel -concrete composite bridges” , Journal of Constructional Steel Research, 61, 1270 -1285, 2005.
[21] Shim C.S., Lee P.G. and Yoon T.Y., “Static behavior of large stud shear connectors” , Engineering Structures, 26, 1853 -1860, 2004.
[22] Nie X., “Study on the structural behavior of key components in steel -concrete composite rigid frame bridge” , 2013, Tsinghua University, Beijing, China.
[23] Pathirana S.W., Uy B., Mirza O., et al., “Strengthening of existing composite steel - concrete beams utilizing bolted shear connectors and welded studs” , Journal of Constructional Steel Research, 114, 417 -430, 2015.
[24] GB50010 -2010, Code for design of concrete structures , Ministry of Construction of China, Beijing, China, 2010.