Research Article
Jan 1977
Reinforced Concrete Frames in Fire Environments
Publication: Journal of the Structural Division
Volume 103, Issue 1
Abstract
In modeling the fire response of reinforced concrete frame structures, the heat flow problem was separated from the structural analysis and two computer programs were written for solving the separate problems. Both programs account for the temperature dependence of the thermal and mechanical properties of materials; the structural analysis accounts for the degradation of concrete and steel through cracking, crushing, spalling, and yielding. FIRES-T (Fire Response of Structures — Thermal) evaluates the thermal response of reinforced concrete elements using a nonlinear finite element approach coupled with time step integration. Using the thermal histories predicted by FIRES-T, FIRES-RC (Fire Response of Structures — Reinforced Concrete Frames) evaluates the structural response of reinforced concrete frames by a nonlinear, direct stiffness method coupled with time step integration. An iterative approach is used within time steps to find deformed shapes which result in equilibrium between forces associated with external load and internal stresses and degradation.
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Published In
Journal of the Structural Division
Volume 103 • Issue 1 • January 1977
Pages: 211 - 224
Copyright
© 1977 American Society of Civil Engineers.
History
Published in print: Jan 1977
Published online: Feb 1, 2021
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Authors
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James M. Becker, AM.ASCE
Asst. Prof., Dept. of Civ. Engrg., Mass. Inst. of Tech., Cambridge, Mass.
Boris Bresler, M.ASCE
Prof., Dept. of Civ. Engrg., Univ. of California, Berkeley, Calif.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.