Seismic Analysis of Precast Concrete Bridge Columns Connected with Grouted Splice Sleeve Connectors

Ameli, M. J.; Pantelides, Chris P.

doi:10.1061/(asce)st.1943-541x.0001678

Cited by 177 publications

(45 citation statements)

References 20 publications

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“…Goto [34] observed that the initiation of cracks at the bar-concrete interface occurs at an angle of approximately 60°. In most recent efforts, Ameli and Pantelides [12] observed this angle to be approximately 45°, which was later confirmed by acoustic emission measurements as reported by Parks et al [30]. The importance of θ lies in the proper simulation of σ1, which controls splitting failures of the assembly.…”

Section: Normal Stressmentioning

confidence: 67%

“…Ameli and Pantelides [12] and Wang et al [13] modeled precast column-footing connections using force-based fiber beam-column elements to assess their seismic post-yield behavior. In the former study, the steel bar was discretized, and bond springs were used to model slippage of the bars, whereas, in the latter, connections were modeled by modifying the steel constitutive model of the bars.…”

Section: Introductionmentioning

confidence: 99%

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Predicting Behavior of Grouted Dowel Connections Using Interfacial Cohesive Elements

Elsayed¹,

Nehdi

Ghrib

2019

Applied Sciences

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Grouted dowel connections are used extensively in precast load bearing walls owing to their simple construction and forgiving tolerances. Current design guidelines do not adequately consider the composite nature of such connections. Moreover, robust numerical models for these connections are yet to be developed. Therefore, a finite element model of grouted dowel connections was developed in this paper. The model adopts a phenomenological bond-slip constitutive law to predict the load versus slip response of grouted bars and considers tensile yielding of the reinforcement. The local bond-slip law used was generated from carefully designed experiments to eliminate spurious effects associated with bond testing. The model was validated using experimental results on grouted connections, as well as data retrieved from the open literature. Excellent agreement between experimental and numerical results was observed, highlighting the accuracy of the model in depicting interfacial stresses of the assembly. The model requires simple calibration, is computationally efficient, and can accurately simulate the failure behavior of bars embedded in grouted connections.

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Section: Normal Stressmentioning

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Predicting Behavior of Grouted Dowel Connections Using Interfacial Cohesive Elements

Elsayed¹,

Nehdi

Ghrib

2019

Applied Sciences

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“…Furthermore, load cracks are also likely to form around the connection interface due to defects [69], high exural moment [61,71], and sti ness change caused by sleeves [17]. As cracks can dramatically increase di usion [72], the durability problem around the connection interface can even be severer.…”

Section: Advances In Civil Engineeringmentioning

confidence: 99%

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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“…In addition, partial debonding of the longitudinal reinforcements can decrease the rate of the strain of reinforcements, as well as delay the reinforcements fatigue fracture, so as to improve the ductility of specimen, for the reason that partial debonding alleviated strain concentrations and distributed strain averagely along the debonding length (Ameli et al, 2015, 2016; Ameli and Pantelides, 2016; Belleri and Riva, 2012; Giovanni et al, 2011; Kawashima et al, 2001; Riva, 2006; Tazarv and Saiidi, 2016b). The debonding and partial debonding phenomena were also measured by optical fiber sensing technology (Wang et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the seismic behavior of precast concrete column with grouted corrugated sleeves and debonded longitudinal reinforcements

Chen

Zhao

Ding

et al. 2019

Advances in Structural Engineering

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The seismic performance and the influence of debonded longitudinal reinforcements at the footing on the precast concrete columns connected with the embedded grouted corrugated sleeve were investigated experimentally in this research. Low cyclic loading tests were carried out on eight bending columns and four shear columns, considering the designed parameters of the partial debonding of the longitudinal reinforcements above the column–foundation interface, the axial load index, and the strength of the stirrups. Experimental results indicate that the partial debonding of the longitudinal reinforcements heavily influenced the damage spreading of the bending columns, but does not affect the damages of the shear columns. Compared to the columns without debonded longitudinal reinforcements, the seismic behaviors in terms of the ductility and energy dissipation can be improved clearly by the partial debonding of the longitudinal reinforcements for bending columns, but there was no clear improvement for shear columns. In addition, with the decrease of the axial load index or the increase of the strength of the stirrups, the seismic behaviors of the precast columns with the partial debonding of the longitudinal reinforcements are improved largely.

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Seismic Analysis of Precast Concrete Bridge Columns Connected with Grouted Splice Sleeve Connectors

Cited by 177 publications

References 20 publications

Predicting Behavior of Grouted Dowel Connections Using Interfacial Cohesive Elements

Predicting Behavior of Grouted Dowel Connections Using Interfacial Cohesive Elements

Service Life Prediction of Precast Concrete Structures Exposed to Chloride Environment

Experimental study on the seismic behavior of precast concrete column with grouted corrugated sleeves and debonded longitudinal reinforcements

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