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Demolition of a 65-year-old box-girder prestressed concrete bridge located in Northern Sweden
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering. Politehnica University Timisoara, Timisoara, Romania.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.ORCID iD: 0000-0003-3548-6082
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.ORCID iD: 0000-0003-0089-8140
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.ORCID iD: 0000-0002-0560-9355
Show others and affiliations
2023 (English)In: EuroStruct 2023 European Association on Quality Control of  Bridges and Structures: Digital Transformation in Sustainability / [ed] Alfred Strauss; Konrad Bergmeister, John Wiley & Sons, 2023, p. 229-234Conference paper, Published paper (Refereed)
Abstract [en]

A new bridge was built in Kalix, northern Sweden, to replace an existing prestressed concrete box-girder bridge that had been in service for over 60 years. The old bridge had a total length of 283.6 m divided into five spans: 43.9 m, 47.0 m, 94.0 m, 47.0 m, and 43.9 m. It was constructed using the balanced cantilever method with segments having lengths of around 3.0 m. The need for replacement arose from recommendations extracted from an assessment of the old bridge's state and capacity. In addition to the construction of the new bridge, its replacement necessitated the creation and evaluation of demolition procedure for the existing bridge. This procedure had to be carefully designed to avoid damaging the new bridge and stability-related issues but also to prevent debris from falling into the Kalix River, which is part of a Natura 2000 protected area. This paper discusses various issues considered while developing the demolition strategy, including the use of bed-rock anchored tendons, intermediate support fixing at specific locations, and proper evaluation of position of the demolition equipment supported by the bridge, among others. The problem of disposing of the demolished material is also discussed.

Place, publisher, year, edition, pages
John Wiley & Sons, 2023. p. 229-234
Series
ce/papers - Proceedings in Civil Engineering, E-ISSN 2509-7075 ; 6:5
Keywords [en]
Bridge, Demolition, Waste Disposal, Deconstruction, Tendons, Anchoring System
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-103664DOI: 10.1002/cepa.2745ISI: 001256546000084OAI: oai:DiVA.org:ltu-103664DiVA, id: diva2:1827915
Conference
EUROSTRUCT2023 - 2nd Conference of the European Association on Quality Control of Bridges and Structures, Vienna, Austria, September 25-29, 2023
Note

Funder: NCC  Infrastructure, Civil Engineering Division, Sweden;

Full text license: CC BY

Available from: 2024-01-15 Created: 2024-01-15 Last updated: 2026-02-02Bibliographically approved

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Daescu, Cosmin AlGonzalez-Libreros, JaimeWang, ChaoElfgren, LennartSas, Gabriel
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