Analytical model for composite joints under sagging moment

Bennacer, M.A.; Béroual, Abderrahmane; Kriker, Abdelouahed; Demonceau, Jean-François

doi:10.1016/j.engstruct.2015.07.024

Cited by 7 publications

(13 citation statements)

References 15 publications

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“…This positive state of stress leads to a higher compression strength of the concrete slab in this area [2], [3], [4], [5]. Moreover, some authors described different inclination of the concrete struts of mechanism 2 [3], [6], [7]. Standard formula took the angle 45° into account.…”

Section: State Of the Artmentioning

confidence: 99%

“…There is a concrete slab in compression confined by means of the transverse reinforcement, continuity of the slab around the column flange and friction on the column flange. This positive state of stress leads to a higher compression strength of the concrete slab in this area [2], [3], [4], [5]. Moreover, some authors described different inclination of the concrete struts of mechanism 2 [3], [6], [7].…”

Section: State Of the Artmentioning

confidence: 99%

“…The concrete slab in compression as the component of a steel-concrete composite joint occurs mainly in following situations: 1) asymmetric joint loading by hogging moments; 2) exceptional internal column loss; 3) horizontal seismic loading. Current code formula [1] for effective width calculation of this component is inaccurate, as is stated in many publications [2], [3], [4], [5], [6], [7]. Until now, no research has dealt with the bearing capacity and the stiffness of steel fibre-reinforced concrete (SFRC) slab in compression in a nodal zone of steel-concrete composite frame.…”

Section: Introductionmentioning

confidence: 99%

“…Current code formula [1] for effective width calculation of this component is inaccurate, as is stated in many publications [2], [3], [4], [5], [6], [7]. Until now, no research has dealt with the bearing capacity and the stiffness of steel fibre-reinforced concrete (SFRC) slab in compression in a nodal zone of steel-concrete composite frame.…”

Section: Introductionmentioning

confidence: 99%

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Steel FRC slab in compression in composite steel‐concrete frame joints

Cervenka¹,

Dolejš²

2021

ce papers

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The objective of the research is a steel fiber‐reinforced concrete slab in compression in a composite frame joint. EN 1998‐1 relates only to composite joints with common concrete slab. This standard prescribes two mechanisms: mechanism 1 acts in the concrete slab with a concentrated compressive force on the column flange; mechanism 2 consists of struts and tie model, where concrete struts compress the concave parts of the column cross‐section. By these mechanisms, it is prescribed inaccurate formula for the effective width calculation of a common concrete slab in compression in the nodal zone, as the standard procedure does not consider the contribution of the confinement effect to the resistance of mechanism 1. Mechanism 1 represents a direct bearing of the concrete slab against the column flange. There is a concrete slab in compression confined by transverse reinforcement, slab continuity around the column flange and friction on the column flange. Moreover, some publications describe different inclination of the concrete struts of mechanism 2. The resistance of mechanism 2 significantly depends on this inclination. The aim of this work is to derive a more accurate formula for calculation the effective width of the steel fiber‐reinforced concrete slab in compression in the nodal zone. Experiment with real‐sized isolated composite joint, validation of ATENA numerical models and parametric study of composite joints with fiber‐reinforced concrete slab are the main steps of this research.

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Section: State Of the Artmentioning

confidence: 99%

Section: State Of the Artmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Steel FRC slab in compression in composite steel‐concrete frame joints

Cervenka¹,

Dolejš²

2021

ce papers

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

SFRC Slab in Compression in Steel‐concrete Composite Frame Joints

Cervenka

Dolejš

2023

ce papers

View full text Add to dashboard Cite

The objective of the research is a steel fiber‐reinforced concrete slab in compression in a composite frame joint. EN 1998‐1 relates only to composite joints with common concrete slab and it prescribes two mechanisms. By these mechanisms, it is prescribed inaccurate formula for the effective width calculation of a common concrete slab in compression in the nodal zone, as the standard procedure does not consider the contribution of the confinement effect to the resistance of mechanism 1. Moreover, some publications describe different inclination of the concrete struts of mechanism 2. The aim of this work is to derive a more accurate formula for calculation the effective width of the steel fiber‐reinforced concrete slab in compression in the nodal zone. Experiment with real‐sized isolated composite joint, validation of numerical models and parametric study of composite joints with fiber‐reinforced concrete slab are the main steps of this research.

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Theoretical model and structural performance of assembled joint between circular CFDST column and composite beam

Guo

Wang

2020

Archiv.Civ.Mech.Eng

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Analytical model for composite joints under sagging moment

Cited by 7 publications

References 15 publications

Steel FRC slab in compression in composite steel‐concrete frame joints

Steel FRC slab in compression in composite steel‐concrete frame joints

SFRC Slab in Compression in Steel‐concrete Composite Frame Joints

Theoretical model and structural performance of assembled joint between circular CFDST column and composite beam

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