| Autor: |
Radić, Jure, Šavor, Zlatko, Hrelja, Gordana, Oršanić, Filip, Friedl, Marsel, Žderić, Željko |
| Přispěvatelé: |
Chen, Baochun, Radić, Jure |
| Jazyk: |
angličtina |
| Rok vydání: |
2009 |
| Předmět: |
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| Popis: |
The new Maslenica highway bridge is a concrete arch of 200 metres span and 65 metres rise, fixed to the abutments. The arch cross section is of double cell box type, with constant 4, 0 m depth and constant width of 9.0 metres. The superstructure comprises eight simple-span precast prestressed girders made continuous over intermediate supports and interconnected by concrete deck slab cast in situ. The arch was constructed by free cantilevering on travelling formwork carriages in 5.26 meter long segments. Piers at the arch abutments were extended by auxiliary steel staying pylons 23 metres high to facilitate successive cantilevering. The installed oscillatory cable-crane of 500 metres span and 6.0 tons capacity was utilized for the transport on the site. The arch construction was speeded-up by the omission of the crown diaphragm, which was constructed on some other Croatian arch bridges. With careful planning, based on 24 hours working days, the arch construction was finished in eleven months. The actual duration of the arch construction was only nine months, because high winds incurred work stoppages adding up to two months period. All erection phases, as actually executed, were numerically calculated on the site by the Designer. A detailed account of the Maslenica Bridge construction is presented in the paper. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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