Performance-based assessment of slender reinforced concrete columns typical of precast industrial buildings

M.Deyanova,; Bellotti, Davide; Nascimbene, Roberto; Pampanin, Stefano

doi:10.1007/s10518-022-01542-5

Cited by 7 publications

(6 citation statements)

References 39 publications

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“…To examine the accuracy of Equation ( 17), the values for plastic hinge length and ultimate lateral loaddisplacement of four full-scale concrete column specimens under monotonic lateral load, previously tested by Barrera, 27 are compared with the plastic hinge length and the ultimate lateral load-displacement values estimated by Equations ( 17) and (1). Table 8 shows the key features of the concrete columns tested by Barrera 27 and the predictions of l p using the expression proposed by different researchers.…”

Section: Plastic Hinge Length: Estimates and Discussionmentioning

confidence: 99%

“…Current empirical relationships that predict the nonlinear response and failure mechanisms of RC columns have been developed mainly for lower aspect ratios (<7.0) 1 ; however, they do not follow well-known empirical models and assessment procedures calibrated for very slender RC columns 2 with aspects ratios larger than 10. As there is a worldwide trend to build increasingly larger, slim buildings with free-spanning floors, predicting the deformation capacity of reinforced concrete columns for a wide range of slenderness has become essential to guarantee safety when such buildings are subjected to accidental or seismic loads.…”

Section: Introductionmentioning

confidence: 99%

“…3 Park and Paulay 4 proposed an equation to estimate the tip displacement of a cantilever column based on curvature distribution and plastic hinge length, assuming the curvature distribution along the plastic hinge length to be constant. Using the second moment area theorem, they calculated the tip displacement of a column, as shown in Equation (1).…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, ultimate lateral displacements in concrete columns can be expressed by an elastic term, described in the first term of Equation ( 1), based on elastic curvature (ϕ y ), and by an inelastic term, described in the second term of Equation (1), expressed in terms of plastic curvature (ϕ p = ϕ À ϕ y ) and based on plastic hinge length, as such l p establishes a key step in predicting the descendent branch of the lateral displacement of a column. If the plastic hinge length is known, the tip displacement can easily be determined by integrating curvatures.…”

Section: Introductionmentioning

confidence: 99%

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Numerical simulation and experimental analysis of plastic hinge length of reinforced concrete columns under monotonic flexure and constant axial load

Souza Junior,

Oliveira

2024

Structural Concrete

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This article investigated test results of 81 reinforced concrete columns under monotonic flexure load via numerical simulation and experimental studies from the literature to comprehensively discuss the parameters that influence plastic hinge length. Moreover, it proposed a simplified method, based on the compressive strain of longitudinal reinforcing bars, and a new expression to estimate plastic hinge length, based on axial load ratio, shear span‐depth ratio, and longitudinal reinforcement ratio. In addition, it compares and discusses analytical expressions to estimate plastic hinge reported in previous research. The analysis shows that axial load ratio, shear span‐depth ratio, and longitudinal reinforcement ratio strongly influence both lateral load–displacement responses and plastic hinge length. Furthermore, the proposed simplified method is adequate for estimating plastic hinge length. Finally, the results show that the equation proposed as a way of estimating the plastic hinge length provides satisfactory predictions for reinforced concrete columns under monotonic flexure.

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Section: Plastic Hinge Length: Estimates and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Numerical simulation and experimental analysis of plastic hinge length of reinforced concrete columns under monotonic flexure and constant axial load

Souza Junior,

Oliveira

2024

Structural Concrete

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“…The change in the rebar layout in core concrete had an insignificant effect on the fire resistance of the columns. Deyanova et al (2023) carried out a nonlinear analysis of PC slender columns to predict the force-deformation responses of the columns under an earthquake scenario. Trilinear approximation of the inelastic behavior of the PC slender column was proposed.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical investigations of precast circular reinforced concrete slender columns with intermediate connection

Hamoda,

Ahmed,

Abadel

et al. 2023

Advances in Structural Engineering

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This paper carries out experimental and numerical investigations on the axial performance of circular Reinforced Concrete (RC) precast slender columns with an intermediate connection. A series of tests are carried out to study the effects of longitudinal reinforcement ratio (ρ), and embedded length of steel bars (Lb) of precast columns on their axial performance under concentric loading. Test results show that increasing the reinforcement ratio and the embedded length of the precast columns significantly improves the axial performance of the precast slender columns. Nonlinear finite element models (FEM) are developed to simulate the performance of the columns experimentally observed. The accuracy of the FEM is validated against the test results and found to reasonably predict the axial performance of tested columns.

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Cyclic loading test for prefabricated ultra‐high performance concrete columns with bellows grouting connection

Fu,

Wan,

Xiao

et al. 2024

Structural Concrete

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Accelerated bridge construction is crucial in bridge engineering. In order to improve the seismic performance of prefabricated columns, this study proposes using ultra‐high performance concrete (UHPC) in the plastic hinge areas of prefabricated columns with bellows grouting connections. In particular, cyclic loading tests are carried out on four 1/3‐scaled columns, including two cast‐in‐place columns and two bellows grouting connection columns. The results show that columns with UHPC in the plastic hinge areas exhibit larger lateral and ultimate bearing capacity, ductility, cumulative energy dissipation, and stiffness compared to those with conventional concrete. Additionally, bellows grouting connection column with UHPC shows superior seismic performance compared to cast‐in‐place column with conventional concrete. The proposed finite element analysis model is in a good agreement with the test results. Through using finite element analysis, three key parameters influencing the seismic performance of bellows grouting columns are examined, and the optimal combination of these parameters is identified.

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Performance-based assessment of slender reinforced concrete columns typical of precast industrial buildings

Cited by 7 publications

References 39 publications

Numerical simulation and experimental analysis of plastic hinge length of reinforced concrete columns under monotonic flexure and constant axial load

Numerical simulation and experimental analysis of plastic hinge length of reinforced concrete columns under monotonic flexure and constant axial load

Experimental and numerical investigations of precast circular reinforced concrete slender columns with intermediate connection

Cyclic loading test for prefabricated ultra‐high performance concrete columns with bellows grouting connection

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