Failure Investigation of under Construction Prestressed Concrete Bridge in Chitwan, Nepal
On 6 April 2021, a 200 m-long under-construction prestressed concrete bridge failed in the Chitwan District in central Nepal. Two of the four bridge spans collapsed without any notable evidence of dynamic force application. Under-construction bridge failures are sometimes reported and can have a sig...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Infrastructures |
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| Online Access: | https://www.mdpi.com/2412-3811/7/2/14 |
| _version_ | 1797479268936056832 |
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| author | Rabindra Adhikari Pratyush Jha Lalit Bhatt Dipesh Thapa Davide Forcellini Dipendra Gautam |
| author_facet | Rabindra Adhikari Pratyush Jha Lalit Bhatt Dipesh Thapa Davide Forcellini Dipendra Gautam |
| author_sort | Rabindra Adhikari |
| collection | DOAJ |
| description | On 6 April 2021, a 200 m-long under-construction prestressed concrete bridge failed in the Chitwan District in central Nepal. Two of the four bridge spans collapsed without any notable evidence of dynamic force application. Under-construction bridge failures are sometimes reported and can have a significant impact on the future construction adjustments. Thus, a detailed study of failure mechanisms will be insightful for the structural engineering community. Aiming to document the failure modes and exemplify lessons for improvement, this paper reports the detailed component level failure mechanisms of the bridge using visual inspection, site measurements, finite element modeling, and some forms of non-destructive testing. The chronological failure mechanisms are presented based on the field evidence and juxtaposed with the results of analytical modeling. The sum of findings highlights that the dead load failure, triggered by the settlement of falseworks, is the most critically governing factor that initiated and aggravated the damage scenario. |
| first_indexed | 2024-03-09T21:43:26Z |
| format | Article |
| id | doaj.art-c7beec5aa6ee47a893dcfd7ae5c9d771 |
| institution | Directory Open Access Journal |
| issn | 2412-3811 |
| language | English |
| last_indexed | 2024-03-09T21:43:26Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Infrastructures |
| spelling | doaj.art-c7beec5aa6ee47a893dcfd7ae5c9d7712023-11-23T20:25:55ZengMDPI AGInfrastructures2412-38112022-01-01721410.3390/infrastructures7020014Failure Investigation of under Construction Prestressed Concrete Bridge in Chitwan, NepalRabindra Adhikari0Pratyush Jha1Lalit Bhatt2Dipesh Thapa3Davide Forcellini4Dipendra Gautam5Department of Civil Engineering, Cosmos College of Management and Technology, Lalitpur 44600, NepalInterdisciplinary Research Institute for Sustainability, IRIS, Kathmandu 44601, NepalInterdisciplinary Research Institute for Sustainability, IRIS, Kathmandu 44601, NepalDepartment of Civil Engineering, Cosmos College of Management and Technology, Lalitpur 44600, NepalDepartment of Civil and Environmental Engineering, University of Auckland, Auckland 1010, New ZealandDepartment of Civil Engineering, Cosmos College of Management and Technology, Lalitpur 44600, NepalOn 6 April 2021, a 200 m-long under-construction prestressed concrete bridge failed in the Chitwan District in central Nepal. Two of the four bridge spans collapsed without any notable evidence of dynamic force application. Under-construction bridge failures are sometimes reported and can have a significant impact on the future construction adjustments. Thus, a detailed study of failure mechanisms will be insightful for the structural engineering community. Aiming to document the failure modes and exemplify lessons for improvement, this paper reports the detailed component level failure mechanisms of the bridge using visual inspection, site measurements, finite element modeling, and some forms of non-destructive testing. The chronological failure mechanisms are presented based on the field evidence and juxtaposed with the results of analytical modeling. The sum of findings highlights that the dead load failure, triggered by the settlement of falseworks, is the most critically governing factor that initiated and aggravated the damage scenario.https://www.mdpi.com/2412-3811/7/2/14prestressed concrete bridgefalseworkforensic analysisconstruction failure |
| spellingShingle | Rabindra Adhikari Pratyush Jha Lalit Bhatt Dipesh Thapa Davide Forcellini Dipendra Gautam Failure Investigation of under Construction Prestressed Concrete Bridge in Chitwan, Nepal Infrastructures prestressed concrete bridge falsework forensic analysis construction failure |
| title | Failure Investigation of under Construction Prestressed Concrete Bridge in Chitwan, Nepal |
| title_full | Failure Investigation of under Construction Prestressed Concrete Bridge in Chitwan, Nepal |
| title_fullStr | Failure Investigation of under Construction Prestressed Concrete Bridge in Chitwan, Nepal |
| title_full_unstemmed | Failure Investigation of under Construction Prestressed Concrete Bridge in Chitwan, Nepal |
| title_short | Failure Investigation of under Construction Prestressed Concrete Bridge in Chitwan, Nepal |
| title_sort | failure investigation of under construction prestressed concrete bridge in chitwan nepal |
| topic | prestressed concrete bridge falsework forensic analysis construction failure |
| url | https://www.mdpi.com/2412-3811/7/2/14 |
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