SINT SEBASTIAANSBRUG, DELFT. REUSE REQUIRES CREATIVE THINKING
| Autor: | Spruit, R., Allaart, A., Pacejka, H., van Eekelen, S.J.M. |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| DOI: | 10.5281/zenodo.8171979 |
| Popis: | The Sint Sebastiaansbrug (Saint Sebastian Bridge) in Delft needed extensions to both sides to facilitate a new tramway next to pedestrian, bicycle and car traffic. During the preparation for widening the bridge, major flaws in the construction and foundation were discovered, leading to acute rejection of the bridge. Initially, a traditional design approach was used, consisting of demolishing the old bridge and building a new one. This resulting design exceeded the available budget by a high margin. Subsequently, City of Rotterdam Engineering took the available budget as a starting point. Its intention was to reuse as many elements of the previous bridge as possible, even though many of the piles had shown insufficient bearing capacity. Significant cost reductions were found in not demolishing the cantilever basement and the centre pillar in the waterway. Both structures were extended to facilitate the new, wider bridge. The extensions made use of new piles that at the same time relieved the old piles. The ramps on both banks of the channel were constructed on geosynthetic-reinforced piled embankments. The fill of the piled embankment consisted of municipal waste incineration ash, reducing the use of primary building material. The bridge was built according to the new design within the available budget. Paper presentation |
| Databáze: | OpenAIRE |
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