Seismic experimental study on a precast concrete beam-column connection with grout sleeves

Yan, Qiushi; Chen, Tianyi; Xie, Zhengchao

doi:10.1016/j.engstruct.2017.09.027

Cited by 175 publications

(56 citation statements)

References 10 publications

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“…Although interface shear performance is specially addressed for PC structures, shear failure is not preferred due to its brittle nature and thus prevented in many codes. A more reasonable mode is ductile flexural failure, which is consistent with the results of some experimental investigations [17,61,62]. Despite the uneven stiffness introduced by grout sleeve and connection interface, there is little difference between the bearing capacities of precast and monolithic joints [17,63], so the bearing capacity models proposed for corroded cast in situ components are used to evaluate the flexural performance of PC structures.…”

Section: Models For Shear Capacitysupporting

confidence: 80%

“…In some experimental investigations [17,61,62], exural failure at the beam/column end can be the failure mode for frames under seismic impact. erefore, the exural bearing capacity is another crucial aspect when considering ultimate limit state.…”

Section: Prediction Of Residual Flexural Capacitymentioning

confidence: 99%

“…Unlike shear failure, exural failure is more in uenced by high di usivity and pitting factor around the interface, especially the latter. By simplifying the seismic impact as a horizontal force at the end of upper column, as many experimental researches did [17,61], it is clear that the failure of the example is controlled by exural bearing capacity at the beam end. is result is reasonable, as the ductile exural failure is preferred in engineering practice.…”

Section: Advances In Civil Engineeringmentioning

confidence: 99%

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Service Life Prediction of Precast Concrete Structures Exposed to Chloride Environment

Zhang

Zeng

Fang³

et al. 2019

Advances in Civil Engineering

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Chloride-induced corrosion is widely accepted as one of the primary causes of premature deterioration for concrete structures in marine or deicing salt environment. For precast concrete (PC) structures, such durability problems may even be severer because defects in joint areas, e.g., cracks caused by grout shrinkage and improper construction, can accelerate chloride ion transportation process and may cause the interface shear failure when subjected to seismic load. By applying the path probability model (PPM) and reliability theory, a probabilistic framework was proposed to predict three limit states of PC structures, including corrosion initiation, serviceability limit state, and ultimate limit state. Using Monte Carlo simulation, a beam-to-column joint was further analyzed to illustrate the differences between PC structures and those cast in situ. The analysis indicates that corrosion initiation and serviceability limit state are sensitive to chloride diffusivity at connection area, and the higher pitting factor can significantly influence the bearing capacities of PC structures.

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Section: Models For Shear Capacitysupporting

confidence: 80%

Section: Prediction Of Residual Flexural Capacitymentioning

confidence: 99%

Section: Advances In Civil Engineeringmentioning

confidence: 99%

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Service Life Prediction of Precast Concrete Structures Exposed to Chloride Environment

Zhang

Zeng

Fang³

et al. 2019

Advances in Civil Engineering

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“…Precast concrete structures are increasingly replacing conventional concrete structures because of their remarkable advantages, such as shorter construction time, lower cost, less energy consumption, better quality of the components, and easier quality control [1,2]. However, the complexity and efficiency of the connection of steel bars between precast concrete structural members may hinder widespread application of precast concrete structures.…”

Section: Introductionmentioning

confidence: 99%

Mechanical behaviour of grouted sleeve splice under uniaxial tensile loading

Lü

Huang

et al. 2019

Engineering Structures

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This paper presents an experimental and analytical study on mechanical behaviour of two kinds of new low-cost grouted sleeves processed by seamless steel pipe, i.e., grouted sleeve with wedge and grouted sleeve with wedge and thread, under uniaxial tension. In total, twenty-two rebar splice specimens with various embedded lengths, spliced bar diameters and wedge lengths are prepared and tested. The test results indicate that the performance of both grouted splices meets the requirements of ACI318 and JGJ107. The required embedded length of rebar in the splice is found to be around 6-6.4 times the spliced bar diameter due to confinement effect. The tensile capacity of the splice increases with increasing diameter of the anchorage segment of the spliced bar, and length and slope of the wedge at both ends of the sleeve. Because of the good performance of wedges threads do not significantly improve the tensile capacity of the sleeve but improve the bond strength and bearing capacity in non-wedge segment of the sleeve. The tensile capacity of the specimen is slightly lower than that of steel bar and the reduction coefficient of bearing capacity is estimated. An analytical model is proposed to predict the tensile capacity of grouted sleeves considering the effects of confinement and reduction of tensile capacity of the splices, the predictions of which are in good agreement with experimental data.

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“…Lateral resistant, ductility and lateral stiffness were 98%, 80% and 80% monolithic connection. Yan et al [17] studied seismic behavior of precast connections, experimentally. The column, joint and a part of beam away from the joint was precast while a part of beam near to the joint was cast in place.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study on Proposed T-Form Semi-Precast Moment-Resisting Concrete Connections

Fathi

parvizi

2019

Scientia Iranica

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This paper presents the results of experimental and numerical study on a proposed exterior semi-precast moment-resisting concrete connection. Steel linkage element connects precast concrete beam to column in two cases of bolted and welded connections. These connections were compared to monolithic connection based on stiffness, strength, energy dissipation capacity and ductility factor. An accurate 3D nonlinear finite element model has been simulated to study the behavior of these connections. A good agreement was observed between numerical results and experimental ones in behavior and damage mode. Although, all samples satisfied all the code criteria, but the trend of failure in bolted and welded connection was observed on the weld and bolts area, at the connection zone between beam and steel linkage. However, in monolithic connection, the yielding was observed in rebars and crushing of concrete at the end of beam. The initial stiffness of bolted and welded connection specimen was less than that of monolithic connection specimen. But, the beam moment capacity factors of these samples were a little more than monolithic sample; so, the ductility factors of them were a little less than that of monolithic sample.

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Seismic experimental study on a precast concrete beam-column connection with grout sleeves

Cited by 175 publications

References 10 publications

Service Life Prediction of Precast Concrete Structures Exposed to Chloride Environment

Service Life Prediction of Precast Concrete Structures Exposed to Chloride Environment

Mechanical behaviour of grouted sleeve splice under uniaxial tensile loading

Experimental and Numerical Study on Proposed T-Form Semi-Precast Moment-Resisting Concrete Connections

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