Cyclic loading tests of interior beam–column connections for concrete-filled thin-walled tube columns

Lim, Jong In; Eom, Tae-Sung; Kim, Jin-Won; Ha, Tae-Hyu

doi:10.1016/j.engstruct.2019.04.007

Cited by 7 publications

(2 citation statements)

References 15 publications

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“…It is well recognized that the connection between the CFT columns and reinforced concrete (RC) beams is an imperative research field for CFT systems [ 15 , 16 , 17 ]. Currently, studies involving the connection between the CFT columns and RC beams are mainly focused on the CFST structure [ 18 , 19 , 20 , 21 , 22 , 23 ]. Among them, according to whether the steel tube is interrupted in the joint core, the joints can be divided into column-through system and beam-through system.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigations on Seismic Behavior of RC Beam to PVC-CFRP Confined Concrete Column Exterior Joint with Steel Tube Connector

Tan

Bao

et al. 2022

Polymers

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Recently, substantial investigations were developed on a polyvinyl chloride (PVC)-carbon fiber-reinforced polymer (CFRP) confined concrete (PFCC) structure owing to its superior mechanical behavior and durability. However, a convenient and effective joint configuration between the PFCC columns and reinforced concrete (RC) beams still requires in-depth study. In the present work, the seismic performance of an RC beam to PFCC column exterior joint with steel tube connector (STC) is systematically studied. Eleven joint specimens are fabricated and tested, with the steel ratio of STC, reinforcement ratio of the frame beam, axial compression ratio, stirrup ratio of the joint and CFRP strips spacing as the design parameters. The experimental results, that is, 8 the failure modes, hysteretic response, ductility, strength, stiffness and energy dissipation, are analyzed. All specimens exhibit joint shear failure, although the joints with STC exhibit significantly better performance those of ordinary joint. In addition to reducing the axial compression ratio, the reinforcement ratio of the frame beam or increasing the stirrup ratio of the joint can also produce a positive effect. Furthermore, the numerical analysis of the exterior joints is performed; the calculated skeleton curves agree well with the test results, and additional parametric studies (i.e., the diameter, height and concrete strength of the joint) are carried out based on the verified numerical model.

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Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigations on Seismic Behavior of RC Beam to PVC-CFRP Confined Concrete Column Exterior Joint with Steel Tube Connector

Tan

Bao

et al. 2022

Polymers

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“…Concrete-filled steel tubular (CFST) columns are practical structural components that have been widely used for several decades because of their excellent strength, ductility, and constructional convenience (Du et al, 2017; Sheet et al, 2013; Tang et al, 2017). The most important component of a CFST frame structure is beam–column connection (Fanaie and Moghadam, 2019; Lima et al, 2019; Varma et al, 2002; Wu et al, 2005). The seismic behavior of connection has a significant influence on the reliability of a building.…”

Section: Introductionmentioning

confidence: 99%

Behavior of large-scale connections between circular concrete-filled steel tubular columns and H-section steel beams

Yang

Liu

Zhang

et al. 2019

Advances in Structural Engineering

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Three large-scale connections between circular concrete-filled steel tubular columns and H-section steel beams were tested. The specimens include one connection with T-shaped stiffeners under static load and two connections, respectively, with T-shaped stiffeners and diaphragms (including interior and exterior diaphragms) under cyclic loads. During the test, the experimental phenomena were observed. The static properties of strength and ductility are calculated for static connection based on load–displacement curves, while the seismic properties of strength, ductility, and energy dissipation are analyzed for seismic connections based on hysteretic load–displacement curves. Combining experimental phenomena, mechanical properties, and stress development, the beam-hinge failure mode can be identified for all specimens. The measured beam strengths of specimens are compared with those predicted by the current AISC-360, EC4, and GB 50017-2017 codes. The study results show that all connections are reliable. A finite element model, established and verified with the experimental results, is used to perform parametric analysis. Furthermore, design suggestions of T-shaped stiffeners and diaphragms are proposed based on a parametric analysis.

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Seismic behavior of braced frames with different connection details to concrete filled tube columns

et al. 2020

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Cyclic loading tests of interior beam–column connections for concrete-filled thin-walled tube columns

Cited by 7 publications

References 15 publications

Experimental and Numerical Investigations on Seismic Behavior of RC Beam to PVC-CFRP Confined Concrete Column Exterior Joint with Steel Tube Connector

Experimental and Numerical Investigations on Seismic Behavior of RC Beam to PVC-CFRP Confined Concrete Column Exterior Joint with Steel Tube Connector

Behavior of large-scale connections between circular concrete-filled steel tubular columns and H-section steel beams

Seismic behavior of braced frames with different connection details to concrete filled tube columns

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