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Performance-based Optimum Retrofitting Design Of Concrete Bridge Piers

Submitted2018-09-12
Last Update2018-09-12
TitlePerformance-based Optimum Retrofitting Design Of Concrete Bridge Piers
Author(s)Author #1
Author title:
Name: Mohammad Alkhamis
Org: Civil Engineering Department, College of Technological Studies, P.O. Box 39199 Nuzha, 73052 Kuwait
Country:
Email: malkhamis@hotmail.com

Author #2
Author title:
Name: Mohammad Reza Ghasemi
Org: Department of Civil Engineering, University of Sistan and Baluchestan, Daneshgah blvd. Zahedan 98155-987 Sistan and Baluchestan, Iran
Country:
Email: mrghasemi@hamoon.usb.ac.ir

Author #3
Author title:
Name: Azim Gholinezhad
Org: Department of Civil Engineering, University of Sistan and Baluchestan, Daneshgah blvd. Zahedan 98155-987 Sistan and Baluchestan, Iran.
Country:
Email: azim_gholinezhad@yahoo.com

Author #4
Author title:
Name: Naser Shabakhty
Org: Department of Civil Engineering, University of Sistan and Baluchestan, Daneshgah blvd. Zahedan 98155-987 Sistan and Baluchestan, Iran.
Country:
Email: shabakhty@eng.usb.ac.ir

Author #5
Author title:
Name: Waleed Abdullah
Org: Civil Engineering Department, College of Engineering and Petroleum, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait.
Country:
Email: waleed.abdullah@ku.edu.kw

Other Author(s)
Contact AuthorAuthor #5
Alt Email: waleed.abdullah@ku.edu.kw
Telephone:
KeywordsBridge piers, Concrete jacket, Retrofitting, Pushover, Performance
AbstractThis paper presents a method to reduce the expenses of bridge piers retrofitting according to their performance. Performance-based engineering is the modern approach to earthquake resistant design, where the bridge pier performance is first evaluated, then concrete jacketing is utilized in order to attain the determined performance level. Bridge piers are analyzed using OpenSees software, in which the confining effect of concrete jacketing on the core concrete is odeled. Procedure A of ATC-40 code is incorporated in MATALAB programming software to calculate the performance point of piers. Particle Swarm Optimization (PSO) method is used to get the optimum cost of retrofitting considering the limitations of ATC-40 for different performance levels by interaction of OpenSees and MATLAB software. Compared to an average non-violated design, an optimum solution with 54.8% cost reduction was suggested, complying with all the practical design criteria.
Paperview paper 4471.pdf (1157KB)

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