A Simplified Method for Assessing the Response of RC Frame Structures to Sudden Column Removal

Column loss is a type of damage that can occur in frame structures subjected to explosions or impacts. The response of such structures largely depends on the capacity of the assembly of elements and on the inertia effects due to the sudden nature of the phenomenon. Frame structures are able to devel...

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Main Authors: Valerio De Biagi, Foad Kiakojouri, Bernardino Chiaia, Mohammad Reza Sheidaii
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/10/9/3081
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author Valerio De Biagi
Foad Kiakojouri
Bernardino Chiaia
Mohammad Reza Sheidaii
author_facet Valerio De Biagi
Foad Kiakojouri
Bernardino Chiaia
Mohammad Reza Sheidaii
author_sort Valerio De Biagi
collection DOAJ
description Column loss is a type of damage that can occur in frame structures subjected to explosions or impacts. The response of such structures largely depends on the capacity of the assembly of elements and on the inertia effects due to the sudden nature of the phenomenon. Frame structures are able to develop various resisting mechanisms that prevent the collapse to progress. The assessment of the robustness often requires complex and detailed numerical modelling. For the preliminary design of a robust frame, simplified methods to assess the effectiveness of the redistribution of the loads after the removal of a member are welcome. In the present paper, an approach based on the idealisation of the damaged structure into a single degree-of-freedom system with an elastic-plastic compliance law is proposed. The output of the method is the dynamic response of a target point, which can serve for assessing the residual safety of the structure. Comparing the obtained results with the outputs of a more sophisticated FE (Finite Elements) analysis, a satisfying accuracy is found.
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spelling doaj.art-bf97ecd0e6d347969c8b764171d0f1e72023-11-19T22:58:13ZengMDPI AGApplied Sciences2076-34172020-04-01109308110.3390/app10093081A Simplified Method for Assessing the Response of RC Frame Structures to Sudden Column RemovalValerio De Biagi0Foad Kiakojouri1Bernardino Chiaia2Mohammad Reza Sheidaii3Department of Structural, Geotechnical and Building Engineering, Politecnico di Torino, 10129 Torino, ItalyDepartment of Structural, Geotechnical and Building Engineering, Politecnico di Torino, 10129 Torino, ItalyDepartment of Structural, Geotechnical and Building Engineering, Politecnico di Torino, 10129 Torino, ItalyDepartment of Civil Engineering, Urmia University, Urmia 5756151818, IranColumn loss is a type of damage that can occur in frame structures subjected to explosions or impacts. The response of such structures largely depends on the capacity of the assembly of elements and on the inertia effects due to the sudden nature of the phenomenon. Frame structures are able to develop various resisting mechanisms that prevent the collapse to progress. The assessment of the robustness often requires complex and detailed numerical modelling. For the preliminary design of a robust frame, simplified methods to assess the effectiveness of the redistribution of the loads after the removal of a member are welcome. In the present paper, an approach based on the idealisation of the damaged structure into a single degree-of-freedom system with an elastic-plastic compliance law is proposed. The output of the method is the dynamic response of a target point, which can serve for assessing the residual safety of the structure. Comparing the obtained results with the outputs of a more sophisticated FE (Finite Elements) analysis, a satisfying accuracy is found.https://www.mdpi.com/2076-3417/10/9/3081sudden damagecolumn removalreinforced concretesimplified methodframe structure
spellingShingle Valerio De Biagi
Foad Kiakojouri
Bernardino Chiaia
Mohammad Reza Sheidaii
A Simplified Method for Assessing the Response of RC Frame Structures to Sudden Column Removal
Applied Sciences
sudden damage
column removal
reinforced concrete
simplified method
frame structure
title A Simplified Method for Assessing the Response of RC Frame Structures to Sudden Column Removal
title_full A Simplified Method for Assessing the Response of RC Frame Structures to Sudden Column Removal
title_fullStr A Simplified Method for Assessing the Response of RC Frame Structures to Sudden Column Removal
title_full_unstemmed A Simplified Method for Assessing the Response of RC Frame Structures to Sudden Column Removal
title_short A Simplified Method for Assessing the Response of RC Frame Structures to Sudden Column Removal
title_sort simplified method for assessing the response of rc frame structures to sudden column removal
topic sudden damage
column removal
reinforced concrete
simplified method
frame structure
url https://www.mdpi.com/2076-3417/10/9/3081
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