Methodology for calculating load capacity reduction and slip relationship of clustered group nail connectors

Advances in Bridge Engineering - Tập 5 Số 1
Shichao Wang1, Chenhao Tang1, Yanqing Fu2, Jun Zhu1, Jing Di1, Guodong Li3
1School of Highway, Chang’an University, Xi’an 710064, China
2Central Research Institute of Building and Construction Co. Ltd. MCC Group, Beijing 100088, China
3Institute of Transportation, Inner Mongolia University, Hohhot 010070, China

Tóm tắt

AbstractClustered group nail connectors are key connecting components for the full lifecycle construction and safe operation of steel–concrete composite structural bridges. To thoroughly investigate the stress mechanism of clustered group nail connectors in steel–concrete composite structures, this paper conducts a detailed numerical analysis on 100 sets of such connectors. It analyzes the stress mechanism of individual nail connectors and quantitatively calculates the group nail effect under the coupled action of multiple factors (nail spacing between layers, number of nail layers, concrete strength). Based on clarifying the force transmission patterns of nails and concrete in different layers during the loading process, this paper proposes a method for calculating the average bearing capacity reduction coefficient and the load-slip curve of single nails in clustered group nail connectors under the coupled action of multiple factors, which has been validated by experimental data. This research provides a theoretical basis for the design and calculation of group nail connectors in steel–concrete composite structural bridges.

Từ khóa


Tài liệu tham khảo

Anderson D (2004) Eurocode 4 Design of composite steel and concrete structures [J]. Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-41714-6_51757

Classen M (2018) Limitations on the use of partial shear connection in composite beams with steel T-sections and uniformly spaced rib shear connectors [J]. J Constr Steel Res 142:99–112. https://doi.org/10.1016/j.jcsr.2017.11.023

Deng WQ, Hu JW, Liu D, Zhao XB, Cha S, Zhang JD (2022) Test and calculation method of shear bearing capacity of cluster welding nail connectors [J]. China J highway Transp 35:194–204. https://doi.org/10.19721/j.cnki.1001-7372.2022.10.018

Ding FX, Yin GA, Wang HB (2017) Static behavior of nail connectors in bi-direction push-off tests[J]. Thin-WalledStructures 120:307–318. https://doi.org/10.1016/j.tws.2017.09.011

Ding JG, Zhu JS, Kang JF, Wang XC (2021) Experimental naily on grouped nail shear connectors in precast steel- UHPC composite bridge[J]. Eng Struct 242:112479. https://doi.org/10.1016/j.engstruct.2021.112479

Fang ZC, Fang HZ, Huang JX, Jiang HB, Chen GF (2022) Static behavior of grouped nail shear connectors in steel–precast UHPC composite structures containing thin full-depth slabs[J]. Eng Struct 252:113484. https://doi.org/10.1016/j.engstruct.2021.113484

GB 50917–2013 (2013) Code for Design of Steel-concrete Composite Bridges [S]. China Architecture and Construction Press, Beijing

GB/T 10433–2002 (2003) Cylindrical head welding nail for arc nail welding [S]. State Administration of Quality Supervision, Inspection and Quarantine, Beijing

Huang CP, Zhang ZX, Zheng ZJ (2015) Force characteristics and failure mechanism experimental study of group nail in steel concrete composite structure[J]. J Wuhan Univ Technol 37:100–105. https://doi.org/10.3963/j.issn.1671-4431.2015.02.019

Li M (2015) Study on refined calculation method and time-effect characteristics of stud connectors of steel-concrete composite beam bridge [D]. Doctoral thesis, Southeast University, Nanjing, China

Li CJ (2017) Naily on force transfer mechanism and calculation method of shear connectors of assembled composite beams [D]. Doctoral thesis, Chongqing Jiaotong University, Chongqing, China

Lian WR (2015) Naily on mechanical properties and design method of steel-concrete composite pylon anchorage system with steel anchor box [D]. Doctoral thesis, Chang ’an University, Xian, China

Lin ZF, Liu YQ (2015) Model experiment on shear-tension interaction relation ship of headed studs [J]. China J Highway Trans 28:80–86. https://doi.org/10.19721/j.carolcarrollnki.1001-7372.2015.01.011

Luo YZ (2008) Research on bolt-nailed shear joints of steel-concrete composite beams [D]. Doctoral thesis, Central South University, Changsha China

Okada J, Yoda T, Lebet JP (2006) A naily of the grouped arrangement of nail connectors on the shear strength behavior [J]. J Struct Mech Earthquake 23:75–89. https://doi.org/10.2208/jsceseee.23.75s

Shi L (2021) Naily on the mechanical behavior of assembled discrete group nail shear key in composite beam [D]. Chongqing Jiaotong University, Chongqing, China, Thesis

Shi L, Fan L (2022) Experimental naily on mechanical behavior of prefabricated multi-key shear keys [J]. J Civil Environ Engin 44:105–112. https://doi.org/10.11835/J.ISSN.2096-6717.2020.194

Su QT, Han X, Ren F (2014) Mechanical properties of multi-row push-out test specimens [J]. J Tongji Univ, China 42:1011–1016. https://doi.org/10.3969/j.issn.0253-374x.2014.07.004

Tong GS. Stability interpretation of multi-storey frame-support frame in GB50017–2017 "Steel Structure Design Standard" [J]. Steel structure 2019;3. https://doi.org/10.13206/j.gjg201901017.

Tong LW, Chen LH, Wen M, Xu C (2020) Static behavior of nail shear connectors in high-strength-steel–UHPC composite beams. Eng Struct 218:110827. https://doi.org/10.1016/j.engstruct.2020.110827

Wang YH, Yu J, Liu JP, Chen YF (2019a) Shear behavior of shear nail groups in precast concrete decks. Eng Struct 187:73–84. https://doi.org/10.1016/j.engstruct.2019.02.002

Wang JQ, Qi JN, Tong T, Xu QZ, Xiu HL (2019b) Static behavior of large nail shear connectors in steel-UHPC composite structures. Eng Struct 178:534–542. https://doi.org/10.1016/j.engstruct.2018.07.058

Wang W, Zhang XD, Ding FX, Zhou XL (2021a) Finite element analysis on shear behavior of high-strength bolted connectors under inverse push-off loading. Energies 14:479. https://doi.org/10.3390/en14020479

Wang W, Zhang XD, Zhou XL, Wu L, Zhu HJ. Naily on Shear Behavior of Multi-Bolt Connectors for Prefabricated Steel–Concrete Composite Beams. Frontiers in Materials. 2021 8;2296–8016. https://www.frontiersin.org/articles/10.3389/fmats.2021.625425

Wei X, Xiao L, Wen ZY (2021) Research progress of steel-concrete composite bridge in 2020 [J]. J Civil Environ Engin 43:107–119. https://doi.org/10.11835/j.issn.2096-6717.2020.106

Xu C, Sugiura K (2013) FEM analysis on failure development of group studs shear connector under effects of concrete strength and stud dimension [J]. Eng Fail Anal 35:343–354

Xu C, Sugiura K, Wu C, Su QT (2012) Parametrical static analysis on group nails with typical push-out tests[J]. J Constr Steel Res 72:84–96. https://doi.org/10.1016/j.jcsr.2011.10.029

Xu H, Zhang S, Rong B (2022) Investigation on shear behavior of nails and PBL shear connectors in steel-concrete hybrid bridge girder. Structures 43:1422–1435. https://doi.org/10.1016/j.istruc.2022.07.050

Yang F, Liu Y, Jiang Z (2018) Shear performance of a novel demountable steel-concrete bolted connector under static push-out tests[J]. Eng Struct 160:133–146. https://doi.org/10.1016/j.engstruct.2018.01.005

Yu YL, Guo SJ, Wang LC, Yang Y, Xiang YQ (2020) Experimental and numerical analysis of grouped nail shear connectors embedded in HFRC[J]. Constr Build Mater 242:118197. https://doi.org/10.1016/j.conbuildmat.2020.118197

Zhang Q, Jia D, Bao Y (2018) Internal force transfer effect-based fatigue damage evaluation for PBL shear connector groups[J]. J Constr Steel Res 148:469–478. https://doi.org/10.1016/j.jcsr.2018.06.016

Zhang J, Hu XM, Fu WJ, Du H, Sun QM, Zhang Q (2020) Experimental and theoretical naily on longitudinal shear behavior of steel-concrete composite beams[J]. J Constr Steel Res 171:106144. https://doi.org/10.1016/j.jcsr.2020.106144

Zhang G, Li XY, Tang CH, Song CJ, Ding YH (2023a) Behavior of steel box bridge girders subjected to hydrocarbon fire and bending-torsion coupled loading [J]. Eng Struct 296:116906. https://doi.org/10.1016/j.engstruct.2023.116906

Zhang G, Tang CH, Li XY (2023b) Fire resistance of steel truss-concrete composite bridge girder. J Building Struct 44:214–226. https://doi.org/10.14006/j.jzjgxb.2022.0260

Zhang AP (2021) Study on shear Performance of stud connectors of Steel-hybrid structure [D]. Doctoral thesis, Zhejiang university, Hangzhou, China

Zhou XH, Zhi WR, Di J (2014) Nail effect and calculation method of shear bearing capacity of bolted shear connectors of steel anchor box [J]. J China Highway 27:13 JournalArticle/5b435873c095d716a4c7387e

Thông tin
Thông tin xuất bản

Advances in Bridge Engineering

Tập 5 Số 1

Thông tin tác giả