Numerical Analysis of Composite Steel-Concrete Columns of Arbitrary Cross Section

Sousa, João Batista M.; Caldas, Rodrigo Barreto

doi:10.1061/(asce)0733-9445(2005)131:11(1721)

Cited by 27 publications

(18 citation statements)

References 31 publications

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“…The effects of temperature variation are taken into account at the cross section (integration point) level. The finite element is a displacement-based generic cross section beam-column element (Sousa Jr. and Caldas, 2005) in conjunction with the corotational formulation, which accounts for large displacements and rotations (Caldas, 2008).…”

Section: Numerical Modelmentioning

confidence: 99%

“…The 11 degree of freedom finite element employed by Sousa Jr. and Caldas (2005) for the numerical analysis of composite columns will be used, with uncoupled torsional stiffness added. The element is based on a total lagrangian formulation, suitable for large displacements and moderate rotations.…”

Section: Local Element Formulationmentioning

confidence: 99%

“…The element is based on a total lagrangian formulation, suitable for large displacements and moderate rotations. (Sousa Jr. and Caldas, 2005). The Principle of Virtual Work, associated with the strain-displacement relation…”

Section: Local Element Formulationmentioning

confidence: 99%

“…The steps taken to extend the previously developed scheme by Sousa Jr. and Caldas (2005) can be summarized as follows: -For consideration of fire action, the main modifications occur at the cross section level and include thermal analysis, considerations of degradation of materials properties in the stressstrain relationships and thermal strains. Alternatively, one may perform thermal analysis in an independent program or previous step and use the temperature distribution as data for the structural analysis; -The CR formulation allows one to analyze structures with large displacements and rotations.…”

Section: Program Implementationmentioning

confidence: 99%

“…The FE model is based on the beam-column element used to analyze composite columns by Sousa Jr. and Caldas (Sousa Jr. and Caldas, 2005) and the well-known corotational technique (Crisfield, 1997). Physical nonlinearity is taken into account at the cross section level divided into a matrix of segments which considers material property degradation under temperature action.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Finite element implementation for the analysis of 3D steel and composite frames subjected to fire

Caldas

Fakury

Sousa

2014

Lat. Am. j. solids struct.

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This paper presents a finite element formulation for the numerical analysis of three-dimensional framed steel, reinforced concrete or composite steel and concrete structures subjected to fire. Several specialized and commercial programs may be used for the analysis of structures in fire condition. Within this context, the purpose of this work is to present the steps taken to extend a previously developed static analysis procedure with beam elements in order to cope with the thermal and structural analysis of structures under fire action. Physical nonlinearity and material property degradation considering the temperature distribution are taken into account at the cross section level, which is divided into quadrilateral or triangular finite elements. Thermal strains are considered through the effective strain concept, and the resulting nonlinear system of equations is solved by the Newton-Raphson scheme. The accuracy and capability of the formulation to simulate the behavior of framed structures under fire action are assessed through comparison with various numerical and experimental results.

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Section: Numerical Modelmentioning

confidence: 99%

Section: Local Element Formulationmentioning

confidence: 99%

Section: Local Element Formulationmentioning

confidence: 99%

Section: Program Implementationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Finite element implementation for the analysis of 3D steel and composite frames subjected to fire

Caldas

Fakury

Sousa

2014

Lat. Am. j. solids struct.

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Experimental research on interfacial bonding performance of high‐strength steel pipe and surrounding concrete/grout for assembled composite columns

Zhu,

Wang

2023

Structural Concrete

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High‐strength steel pipe joints are proposed for assembled composite columns. The steel pipe extends into the upper and lower prefabricated columns and is anchored by poured concrete or grout to realize the connection of the prefabricated columns. Bonding performance of high‐strength steel pipe and surrounding concrete/grout is critical to the joint reliability. Steel pipe push‐out test was carried out, considering parameters of steel pipe section specification, bonding length, bonding material, and outer wall treatment of the steel pipe. Comparative analysis of measured load–displacement/slip curves and calculated bond strength were conducted. Bonding length of 600 mm could provide sufficient bond strength. Increasing bonding length could delay the slippage, but the bond strength decreased. High‐strength grout significantly increased the peak load size. The slenderness ratio and diameter–thickness ratio of the steel pipe had no obvious influence on the bonding performance. Steel pipe with D114*25 section obtained higher bonding strength with smaller ratio of bonding area to cross‐sectional area. Spiral ribs welded to the outer wall of the steel pipe could effectively improve the bonding strength and delay the interface slip. With easy construction and reliable performance, spiral ribs were recommended to be applied in prRactical projects.

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The Composite Steel Reinforced Concrete Column Under Axial and Seismic Loads: A Review

Mostafa

Liu

2019

Int J Steel Struct

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Numerical Analysis of Composite Steel-Concrete Columns of Arbitrary Cross Section

Cited by 27 publications

References 31 publications

Finite element implementation for the analysis of 3D steel and composite frames subjected to fire

Finite element implementation for the analysis of 3D steel and composite frames subjected to fire

Experimental research on interfacial bonding performance of high‐strength steel pipe and surrounding concrete/grout for assembled composite columns

The Composite Steel Reinforced Concrete Column Under Axial and Seismic Loads: A Review

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