Behavior of grouped stud shear connectors between precast high-strength concrete slabs and steel beams

다국어 초록 (Multilingual Abstract)

This study aims to examine the interface shear behavior between precast high-strength concrete slabs with pockets and steel beam to achieve accelerated bridge construction (ABC). Twenty-six push-out specimens, with different stud height, stud diameter, stud arrangement, deck thickness, the infilling concrete strength in shear pocket (different types of concrete), steel fiber volume of the infilling concrete in shear pocket concrete and casting method, were tested in this investigation. Based on the experimental results, this study suggests that the larger stud diameter and higher strength concrete promoted the shear capacity and stiffness but with the losing of ductility. The addition of steel fiber in pocket concrete would promote the ductility effectively, but without apparent improvement of bearing capacity or even declining the initial stiffness of specimens. It can also be confirmed that the precast steel-concrete composite structure can be adopted in practice engineering, with an acceptable ductility (6.74 mm) and minor decline of stiffness (4.93%) and shear capacity (0.98%). Due to the inapplicability of current design provision, a more accurate model was proposed, which can be used for predicting the interface shear capacity well for specimens with wide ranges of the stud diameters (from13 mm to 30 mm) and the concrete strength (from 26 MPa to 200 MPa).

참고문헌 (Reference)

1 김상효, "Ultimate strength of composite structure with different degrees of shear connection" 국제구조공학회 11 (11): 375-390, 2011

2 H.Y Loh, "The effects of partial shear connection in the hogging moment regions of composite beams" Elsevier BV 60 (60): 897-919, 2004

3 Xiaochen Ju, "Study on uplift performance of stud connector in steel-concrete composite structures" 국제구조공학회 18 (18): 1279-1290, 2015

4 Xiaoqing Xu, "Study on mechanical behavior of rubber-sleeved studs for steel and concrete composite structures" Elsevier BV 53 : 533-546, 2014

5 Qing-Tian Su, "Static behaviour of multi-row stud shear connectors in high- strength concrete" 국제구조공학회 17 (17): 967-980, 2014

6 Branko Milosavljević, "Static behaviour of bolted shear connectors with mechanical coupler embedded in concrete" 국제구조공학회 29 (29): 257-272, 2018

7 Qinghua Han, "Static behavior of stud shear connectors in elastic concrete–steel composite beams" Elsevier BV 113 : 115-126, 2015

8 Dongyan Xue, "Static behavior of multi-stud shear connectors for steel-concrete composite bridge" Elsevier BV 74 : 1-7, 2012

9 Chang-Su Shim, "Static behavior of large stud shear connectors" Elsevier BV 26 (26): 1853-1860, 2004

10 Jingquan Wang, "Static behavior of grouped large headed stud-UHPC shear connectors in composite structures" Elsevier BV 206 : 202-214, 2018

11 Chen Xu, "Static and fatigue performance of stud shear connector in steel fiber reinforced concrete" 국제구조공학회 24 (24): 467-479, 2017

12 Pil-Goo Lee, "Static and fatigue behavior of large stud shear connectors for steel–concrete composite bridges" Elsevier BV 61 (61): 1270-1285, 2005

13 Junhui Cao, "Static and Fatigue Behavior of Short-Headed Studs Embedded in a Thin Ultrahigh-Performance Concrete Layer" American Society of Civil Engineers (ASCE) 22 (22): 04017005-, 2017

14 JSCE, "Standard specification for steel and composite structures"

15 Martin Classen, "Shear-slip behaviour and ductility of composite dowel connectors with pry-out failure" Elsevier BV 150 : 428-437, 2018

16 이영학, "Shear resistance of stud connectors in high strength concrete" 국제구조공학회 52 (52): 647-661, 2014

17 Thi Hai Vinh Chu, "Shear resistance behaviors of a newly puzzle shape of crestbond rib shear connector: An experimental study" 국제구조공학회 21 (21): 1157-1182, 2016

18 Fei Yang, "Shear performance of a novel demountable steel-concrete bolted connector under static push-out tests" Elsevier BV 160 : 133-146, 2018

19 Jianan Qi, "Shear capacity of stud shear connectors with initial damage: Experiment, FEM model and theoretical formulation" 국제구조공학회 25 (25): 79-92, 2017

20 Masoud Paknahad, "Shear capacity equation for channel shear connectors in steel-concrete composite beams" 국제구조공학회 28 (28): 483-494, 2018

21 Shuangjie Zheng, "Shear behavior and analytical model of perfobond connectors" 국제구조공학회 20 (20): 71-89, 2016

22 Li An, "Push-out tests on studs in high strength and normal strength concrete" Elsevier BV 36 (36): 15-29, 1996

23 Spremic, M., "Push-out experiments of headed shear studs in group arragement" 9 : 139-160, 2013

24 Aida Mazoz, "Push-out Tests on a New Shear Connector of I-shape" 한국강구조학회 13 (13): 519-528, 2013

25 Josef Machacek, "Perforated shear connectors" 국제구조공학회 2 (2): 51-66, 2002

26 Xu, C., "Parametrical static analysis on group studs with typical push-out tests" 72 : 84-96, 2012

27 Shuangjie Zheng, "Parametric study on shear capacity of circular-hole and long-hole perfobond shear connector" Elsevier BV 117 : 64-80, 2016

28 "PR China minister of China. GB 50017-2003" China Planning Press 2003

29 김건수, "Numerical simulation of Y-type perfobond rib shear connectors using finite element analysis" 국제구조공학회 31 (31): 53-67, 2019

30 Chen Xu, "Mechanism study on the low cycle fatigue behavior of group studs shear connectors in steel-concrete composite bridges" Elsevier BV 138 : 196-207, 2017

31 Zhi-hui Zhu, "Mechanical performance of shear studs and application in steel-concrete composite beams" Springer Science and Business Media LLC 23 (23): 2676-2687, 2016

32 Zhuangcheng Fang, "Horizontal Shear Behaviors of Normal Weight and Lightweight Concrete Composite T-Beams" 한국콘크리트학회 12 (12): 717-737, 2018

33 Jee-Sang Kim, "Headed stud shear connector for thin ultrahigh-performance concrete bridge deck" Elsevier BV 108 : 23-30, 2015

34 "GB 50017, Code for design of steel structures" China Planning Press 2003

35 Mo Alkaysi, "Factors affecting bond development between Ultra High Performance Concrete (UHPC) and steel bar reinforcement" Elsevier BV 144 : 412-422, 2017

36 Chen Xu, "FEM analysis on failure development of group studs shear connector under effects of concrete strength and stud dimension" Elsevier BV 35 : 343-354, 2013

37 N. Gattesco, "Experimental study on stud shear connectors subjected to cyclic loading" Elsevier BV 38 (38): 1-21, 1996

38 Yi Liu, "Experimental study of static behaviour of stud shear connectors" Canadian Science Publishing 40 (40): 909-916, 2013

39 Sang-Hyo Kim, "Experimental shear resistance evaluation of Y-type perfobond rib shear connector" Elsevier BV 82 : 1-18, 2013

40 Martin Noel, "Experimental investigation of connection details for precast deck panels on concrete girders in composite deck construction" Elsevier BV 106 : 15-24, 2016

41 Xuewei Wang, "Experimental Research on PBL Connectors Considering the Effects of Concrete Stress State and Other Connection Parameters" American Society of Civil Engineers (ASCE) 23 (23): 04017125-, 2018

42 "Eurocode 4, Design of composite steel and concrete structure:Part 2: General rules for bridge"

43 Chang-Su Shim, "Design of shear connection in composite steel and concrete bridges with precast decks" Elsevier BV 57 (57): 203-219, 2001

44 Dennis Lam, "Capacities of headed stud shear connectors in composite steel beams with precast hollowcore slabs" Elsevier BV 63 (63): 1160-1174, 2008

45 ASTM, "C496/C496M-11, Standard test method for splitting tensile strength of cylindrical concrete specimens"

46 ASTM, "C469/C469M-14, Standard test method for static modulus of elasticity and Poisson’s ratio of concrete in compression"

47 ASTM, "C1231/C1231M-15, Standard practice for use of unbond caps in determination of compressive strength of hardened cylindrical concrete specimens"

48 Marko Pavlović, "Bolted shear connectors vs. headed studs behaviour in push-out tests" Elsevier BV 88 : 134-149, 2013

49 Mahdi Shariati, "Behaviour of C-shaped angle shear connectors under monotonic and fully reversed cyclic loading: An experimental study" Elsevier BV 41 : 67-73, 2012

50 Xinpei Liu, "Behavior of High-Strength Friction-Grip Bolted Shear Connectors in Sustainable Composite Beams" American Society of Civil Engineers (ASCE) 141 (141): 04014149-, 2015

51 Dennis Lam, "Behavior of Headed Stud Shear Connectors in Composite Beam" American Society of Civil Engineers (ASCE) 131 (131): 96-107, 2005

52 Yunbiao Luo, "Behavior and Strength of Headed Stud–SFRCC Shear Connection. II: Strength Evaluation" American Society of Civil Engineers (ASCE) 142 (142): 04015113-, 2016

53 Nader Fanaie, "Analytical study of composite beams with different arrangements of channel shear connectors" 국제구조공학회 19 (19): 485-501, 2015

54 Chen Xu, "Analytical investigation on failure development of group studs shear connector in push-out specimen under biaxial load action" Elsevier BV 37 : 75-85, 2014

55 AASHTO, "AASHTO LRFD bridge design specifications"