Deformation Controlled Nonlinear Analysis of Prestressed Concrete Continuous Beams

Campbell, T. I.; Kodur, Venkatesh

doi:10.15554/pcij.09011990.42.55

Cited by 16 publications

(6 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The obtained system of nonlinear stiffness equations is solved using the iterative procedure described by Campbell and Kodur [23] and the deflections of the beam are computed.…”

Section: Beam Analysismentioning

confidence: 99%

A numerical model for predicting the fire resistance of reinforced concrete beams

Kodur

Dwaikat

2008

Cement and Concrete Composites

167

View full text Add to dashboard Cite

“…The obtained system of nonlinear stiffness equations is solved using the iterative procedure described by Campbell and Kodur [23] and the deflections of the beam are computed.…”

Section: Beam Analysismentioning

confidence: 99%

A numerical model for predicting the fire resistance of reinforced concrete beams

Kodur

Dwaikat

2008

Cement and Concrete Composites

167

View full text Add to dashboard Cite

“…The last step in the analysis is to construct the global stiffness matrix of the beam and the associated loading vector. The obtained system of nonlinear stiffness equations is solved using an iterative procedure described by Campbell and Kodur [23] and the deflections are computed. These deflections and rate of deflections of the beam, together with temperatures and strength capacities for each segment, are checked against the limiting values discussed above to assess the failure state of the beam under fire conditions at that time step.…”

Section: Computer Implementation Computer Programmentioning

confidence: 99%

Performance-based Fire Safety Design of Reinforced Concrete Beams

Kodur

Dwaikat

2007

Journal of Fire Protection Engineering

View full text Add to dashboard Cite

A numerical model, in the form of a computer program, is presented for tracing the fire behavior of reinforced concrete (RC) beams over the entire range of loading from pre-fire conditions to collapse under fire. The three stages associated with the analysis of fire resistance; namely, establishing the fire temperature-time development, calculating the heat transfer through the structure from the fire, and the structural analysis are explained. The model, which accounts for nonlinear material properties at elevated temperatures, is capable of predicting the fire resistance of RC beams under realistic fire scenarios, load levels, and failure criteria. The validity of the numerical model is established by comparing the predictions from the computer program with results from full-scale fire resistance tests. Through the results of numerical study, it is shown that the type of failure criterion, load level, and fire scenario have significant influence on fire resistance of RC beams. The computer program can be used to undertake performance-based fire safety design of RC beams for any value of the significant parameters, such as fire exposure, concrete cover thickness, section dimensions, concrete strength, concrete type, and load intensity.KEY WORDS: fire resistance, performance-based design, structural fire safety, high temperature, reinforced concrete beams, high strength concrete, numerical model.

show abstract

“…Incremental load or displacement is then applied on which iterations are performed to obtain the admissible nodal displacements that satisfy the constitutive behaviour of each element. Unlike the previous technique adopted by Campbell and Kodur (1990) in which the moment-curvature relationship is based on the mid-section of an element, the present study is based on the moment-curvature relationship of the section at each nodal point. Apart from the more accurate modelling of varying tendon eccentricity within each element, the present formulation also avoids significant discontinuity of curvature across element boundaries.…”

Section: General Approachmentioning

confidence: 99%

“…Apart from the more accurate modelling of varying tendon eccentricity within each element, the present formulation also avoids significant discontinuity of curvature across element boundaries. While Campbell and Kodur (1990) have adopted an iteration scheme using the secant flexural stiffnesses, an iteration scheme using the initial flexural stiffnesses and residual curvatures is devised so as to cope with not only loading beyond the peak resistance along the post-peak branch (i.e. continued increase in curvature) but also unloading before reaching the peak resistance.…”

Section: General Approachmentioning

confidence: 99%

Non-linear analysis and moment redistribution of prestressed concrete members

Leung

Kwan

2013

Proceedings of the Institution of Civil Engineers - Engineering

View full text Add to dashboard Cite

Most of the existing codes of practice allow moment redistribution to be applied to reinforced concrete design with upper limits of 20-30%. It is, however, questionable whether the same limits are valid for the design of prestressed Engineering and Computational Mechanics Volume 166 Issue EM1 Non-linear analysis and moment redistribution of prestressed concrete members Leung, Au and Kwan Engineering and Computational Mechanics Volume 166 Issue EM1 Non-linear analysis and moment redistribution of prestressed concrete members Leung, Au and Kwan Engineering and Computational Mechanics Volume 166 Issue EM1 Non-linear analysis and moment redistribution of prestressed concrete members Leung, Au and Kwan Engineering and Computational Mechanics Volume 166 Issue EM1 Non-linear analysis and moment redistribution of prestressed concrete members Leung, Au and Kwan Engineering and Computational Mechanics Volume 166 Issue EM1 Non-linear analysis and moment redistribution of prestressed concrete members Leung, Au and Kwan

show abstract

Deformation Controlled Nonlinear Analysis of Prestressed Concrete Continuous Beams

Cited by 16 publications

References 3 publications

A numerical model for predicting the fire resistance of reinforced concrete beams

A numerical model for predicting the fire resistance of reinforced concrete beams

Performance-based Fire Safety Design of Reinforced Concrete Beams

Non-linear analysis and moment redistribution of prestressed concrete members

Contact Info

Product

Resources

About