Английская Википедия:Dabar Bridge

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Шаблон:Infobox bridge The Dabar Bridge is located between the Šibenik and Vrpolje interchanges of the A1 motorway in the Dalmatia region of Croatia. It is a Шаблон:Convert long concrete girder bridge spanning the Dabar flash flood gully at a height of Шаблон:Convert.[1]

The bridge is Шаблон:Convert long overall, executed across 7 spans (Шаблон:Convert + 5 x Шаблон:Convert + Шаблон:Convert). Axis of the bridge is in a horizontal circular curve Шаблон:Convert in diameter. The cross section of the bridge comprises two dilated structures, each carrying one motorway carriageway consisting of two Шаблон:Convert wide traffic lanes and one Шаблон:Convert wide emergency lane. The bridge is Шаблон:Convert wide overall.

Construction

The deck structure consists of longitudinal girders, cross-girders, and the deck. The abutments and the outermost piers support the structure through bearings while the remaining four piers are fixed to the deck structure. The longitudinal girders are executed as prefabricated, pretensioned girders and there are 10 longitudinal girders comprising the cross-section of the bridge, i.e. five of them, with axes set Шаблон:Convert apart, supporting each of the carriageways. Length of the prefabricated girders ranges from Шаблон:Convert to Шаблон:Convert in the peripheral spans and between Шаблон:Convert and Шаблон:Convert in the remaining spans. The girders are Шаблон:Convert high I-sections with Шаблон:Convert wide upper flange. The bottom flange of the longitudinal girders is Шаблон:Convert wide. The longitudinal girders were manufactured in a special plant next to the bridge construction site and placed in the bridge structure using incremental launching.

Bridge piers comprise a box cross-section measuring Шаблон:Convert by Шаблон:Convert with a constant wall thickness of Шаблон:Convert. The top of each of the piers is closed by an Omnia slab Шаблон:Convert deep. Each motorway carriageway is supported by a separate set of piers. The abutments, on the other hand, are designed to support both of the carriageways. The cross-girders are placed at the abutments and the piers.[1][2]

The Dabar Bridge was designed by Jure Radnić and constructed by Hidroelektra niskogradnja, Zagreb.[3]

Traffic volume

Traffic is regularly counted and reported by Hrvatske autoceste, operator of the bridge and the A1 motorway where the bridge is located, and published by Hrvatske ceste.[4] Substantial variations between annual (AADT) and summer (ASDT) traffic volumes are attributed to the fact that the bridge carries substantial tourist traffic to the Dalmatian Adriatic resorts. The traffic count is performed using analysis of motorway toll ticket sales.

Dabar Bridge traffic volume
Road Counting site AADT ASDT Notes
Файл:Autocesta A1.svg A1 5316 Šibenik south 7,923 17,450 Between Šibenik and Vrpolje interchanges.

See also

References

Шаблон:Reflist