Implementation of new elements and material models in OpenSees software to account for post-earthquacke fire damage

Mortazavi, Seyed Javad and Mansouri, Iman and Awoyera, P. O. and Naser, M. Z. (2020) Implementation of new elements and material models in OpenSees software to account for post-earthquacke fire damage. Structures, 27. pp. 1777-1785.

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Abstract

Post-earthquake fire (PEF) damage in buildings is a hazard, which is usually not taken into consideration during structural design in buildings. Past instances of PEF events have led to severe damage and loss of lives, often higher than those experienced during the earthquake event. PEF is a complex phenomenon that requires special treatment, one that can be pursued via OpenSees– an efficient structural modeling software. Despite recent advancements in OpenSees, the latest edition still lacks constitutive thermal and mechanical models for spring element, spring section, parallel material, and beam elements with hinges. For this, carrying out a global thermal analysis of structures with the aforementioned element/member characteristics has been a daunting task,. To overcome this knowldeg gap, this work presents the development of constitutive models to be used in OpenSees to enable engineers from conducting a reaslitic and practical engineering simulation of a PEF event. A further development of OpenSees, introducing a New UserMat function, has also been carried out. Lastly, a series of case studies were explored using numerical implementations of the proposed models and validated based on hand calculations and new OpenSees material development

Item Type:	Article
Uncontrolled Keywords:	Constitutive model OpenSees Fire Thermal analysis New material New element
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment
Depositing User:	Mrs Patricia Nwokealisi
Date Deposited:	22 Jan 2021 09:37
Last Modified:	22 Jan 2021 09:37
URI:	http://eprints.covenantuniversity.edu.ng/id/eprint/13799

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