Bond behavior and shear transfer of steel section-concrete interface with studs: Testing and modeling

Wang, Xianlin; Liu, Yuqing; Li, Yongxuan; Lu, Yuanchun; Li, Xuefeng

doi:10.1016/j.conbuildmat.2020.120251

Cited by 23 publications

(3 citation statements)

References 22 publications

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“…Additionally, the concrete is poured into the composite sections, which are composed of main girders and cross girders welded together. In the proposed composite connection, high-performance PBL connectors are used in place of conventional headed studs, which provide superior long-term performance [12]. In comparison to the other connections mentioned, the innovative composite connection has a more efficient load transfer path and simpler configurations.…”

Section: Novel Proposalmentioning

confidence: 99%

Load Transfer Mechanism of Steel Girder-Rc Pier Connection in Composite Rigid-Frame Bridge

2022

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The composite rigid-frame bridge, where the steel girder and the reinforced concrete (RC) pier are rigidly connected, has a high bearing capacity and superior long-term performance. The steel girder-RC pier connection is the critical detail for the design of such a structural form. To this end, a detailed review of composite rigid-frame bridges in China and abroad was carried out to summarize various forms of connections and evaluate their applicability. A novel connection type was then proposed to improve the connective performance between steel plate girders and RC piers. Threedimensional finite element models were further developed to investigate the force transfer mechanism, accounting for the impact of concrete stress, shear force in the connectors, and stress of steel plates. The results indicated that the proposed connection was capable of transmitting external loads reliably, and its ultimate bearing capacity exceeded design loads. The shear force of perfobond connectors, the tension of reinforcement, and the bearing effect of the bottom flange provided the major force transmission path to resist the external load.

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Section: Novel Proposalmentioning

confidence: 99%

Load Transfer Mechanism of Steel Girder-Rc Pier Connection in Composite Rigid-Frame Bridge

2022

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“…19 The headed studs might increase the interfacial bond resistance and shear stiffness, enhance the post-peak bond behavior, and avoid brittle failure, according to Wang et al's push-out studies on SRC specimens. 20 By examining the failure mechanism of the stud connection and the load-slip curve of the UHPC-steel interface, several studies proposed a shear strength formula and a load-slip relationship of embedded ultra-high-performance concrete studs. [21][22][23][24] Different numerical constitutive models and modeling methods (the cracking element method and the cracking particle method) are employed to reflect elastic-plastic mechanics and brittle fracture of the concrete lining.…”

Section: Introductionmentioning

confidence: 99%

“…Bonilla et al created a nonlinear FE push‐out test model to investigate the effects of stud location and concrete strength on the resistance and behavior of shear connections 19 . The headed studs might increase the interfacial bond resistance and shear stiffness, enhance the post‐peak bond behavior, and avoid brittle failure, according to Wang et al's push‐out studies on SRC specimens 20 . By examining the failure mechanism of the stud connection and the load‐slip curve of the UHPC‐steel interface, several studies proposed a shear strength formula and a load‐slip relationship of embedded ultra‐high‐performance concrete studs 21–24 .…”

Section: Introductionmentioning

confidence: 99%

Research on the bond‐slip behavior and constitutive relationship between I‐shaped steel and shotcrete in tunnel

Lü

Ran

et al. 2023

Structural Concrete

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The failure of the initial support of the tunnel caused by the synergistic deformation of steel and shotcrete under high‐ground stress is expected to be solved by arranging studs and steel webs to enhance the structure's bearing capacity. Hence, the bond‐slip mechanism of steel shotcrete with or without studs is unclear. This study aims to determine the bond behavior of the interface between the steel and shotcrete composite structure for tunnel support. The findings of push‐out experiments demonstrate that shotcrete on steel flange longitudinal splitting failure is the failure mode of natural bonding specimens. Tensile failure and expansion failure under the effect of studs is the failure mechanisms of stud steel‐sprayed concrete specimens. Furthermore, experimental data and a mathematical model establish the bond‐slip constitutive law of natural bonding and stud specimens. Finally, in addition to providing a theoretical foundation for the research of bond‐slip, the constitutive model put forward in this paper also supports the prevention of initial support failure in tunnel engineering.

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Finite element analysis of the shear performance of box-groove interface of ultra-high-performance concrete (UHPC)-normal strength concrete (NSC) composite girder

Farouk

Zhu

Yuhui³

2022

Innov. Infrastruct. Solut.

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Bond behavior and shear transfer of steel section-concrete interface with studs: Testing and modeling

Cited by 23 publications

References 22 publications

Load Transfer Mechanism of Steel Girder-Rc Pier Connection in Composite Rigid-Frame Bridge

Load Transfer Mechanism of Steel Girder-Rc Pier Connection in Composite Rigid-Frame Bridge

Research on the bond‐slip behavior and constitutive relationship between I‐shaped steel and shotcrete in tunnel

Finite element analysis of the shear performance of box-groove interface of ultra-high-performance concrete (UHPC)-normal strength concrete (NSC) composite girder

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