Condition Assessment of an Aging PSC Bridge in Karachi
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Détails bibliographiques
| Auteur(s): |
Rashid Ahmed Khan
(NEO University of Engineering and Technology, Karachi, Sindh, PK)
Aslam Faqeer Mohammad (NEO University of Engineering and Technology, Karachi, Sindh, PK) Sarosh Hashmat Lodi (NEO University of Engineering and Technology, Karachi, Sindh, PK) Murad Ali Shah (Chief Minister of Sindh, Government of Pakistan, PK) Sohail Bashir (lnstitution of Engineers Pakistan (lEP}, Karachi Center, PK) |
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| Médium: | papier de conférence | ||||
| Langue(s): | anglais | ||||
| Conférence: | IABSE Conference: Risk Intelligence of Infrastructures, Seoul, South Korea, 9-10 November 2020 | ||||
| Publié dans: | IABSE Conference Seoul 2020 | ||||
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| Page(s): | 161-166 | ||||
| Nombre total de pages (du PDF): | 6 | ||||
| DOI: | 10.2749/seoul.2020.161 | ||||
| Abstrait: |
With many of the Karachi bridges that are built before the adoption of modern philosophies of design, are structurally deficient and degraded, owing to the ageing effects and non-existent maintenance. In most cases, these bridges as they approach their service lifetime are now carrying much higher volume and heavier loaded freight vehicles, which warrants continuous assessment of their safety to increased operational loads and seismicity, before deciding on their optimal management. A pre-stressed concrete bridge (PSC) located in Karachi is investigated for structural deficiencies and possible weakening based on a three-tier approach, including Non-Destructive Evaluation (NDE) and seismic evaluation. The study results show that the overall behaviour of the bridge structure has adequate strength to meet the West Pakistan Highway Code (WPHC) [1] and American Association of State Highway and Transportation Officials (AASHTO) 2006 [2] code demands. |
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