General Information
| Completion: | 2017 |
|---|---|
| Status: | in use |
Project Type
| Structure: |
Multi-span extradosed bridge |
|---|---|
| Function / usage: |
Motorway bridge / freeway bridge |
| Material: |
Prestressed concrete bridge Structurae Plus/Pro - Subscribe Now! Structurae Plus/Pro - Subscribe Now! |
Awards and Distinctions
| 2019 |
finalist
for registered users |
|---|
Location
Technical Information
Dimensions
| total length | 442.200 m | |
| span lengths | 72.800 m - 3 x 100.000 m - 68.800 m | |
| number of spans | 5 | |
| deck | deck width | 24.200 m |
| girder depth | 4.000 m | |
| roadway / carriageway width | 2 x 10.535 m | |
| foundations P3 | width | 14.000 m |
| pier P1 | diameter | 5.500 m |
| height | 54.200 m | |
| pier P2 | diameter | 5.500 m |
| height | 65.100 m | |
| pier P3 | diameter | 5.000 m |
| height | 81.200 m | |
| pier P4 | diameter | 5.500 m |
| height | 69.700 m | |
| pylons | thickness | 1.35 m |
| pylon height (above deck) | 8.500 m |
Materials
| piers |
precast reinforced concrete
|
|---|---|
| deck slab |
prestressed concrete
|
| abutments |
reinforced concrete
|
| bottom flange |
prestressed concrete
|
| webs |
fiber reinforced concrete
|
Case Studies and Applied Products
New combination of extradosed and butterfly web: Shin-Meishin Mukogawa Bridge
The Shin-Meishin Mukogawa Bridge is located in Japan, north of Kobe, between the Takatsuki and Kobe junctions on the Shin-Meishin Expressway. The 442 m long extradosed bridge with a continuous rigid frame an ... [more]
Box girder design and erection
The superstructure of the extradosed bridge consists of two parallel box sections which are connected by a diaphgragm at the piers as well as through a continuous deck slab. The webs of box sections are designed as butterfly webs made of precast high-strength (80 MPa) fiber-reinforced precast concrete elements, 2.900 meters wide and 15 cm thick, which connect to the upper and bottom flanges of the box through dowels. They are also prestressed diagonally. The box girders were erected by cantilevering out from the piers first laterally to achieve the full width of 24 meters on a 5.5 meter diameter pier and then longitudinally in block lengths of 6.0 meters using a launching gantry.
Pier design and erection
The piers are made of single-shaft hollow circular section with a diameter of 5.00 m (P3) or 5.500 m (P1, P2, P4). The shortest pier, P1 is 54.200 meters tall while the highest, P3 and located in the middle of the river, is 81.200 meters high. Pier P4 is supported on a rectangular flat footing while the other piers are supported by circular caisson foundations. The piers were erected using the SPER method using half-precast reinforced concrete elements 2.0 meters high with embedded hoops and ties. Two of semi-cylindrical elements were used to make up the hollow circular section of the piers. They are pre-assembled and then lifted onto the already erected part of the pier. This method reduces the amount of formwork necessary on-site considerably, as the outer and inner pannels of the precast elements serve as formwork for most of the perimeter. Formwork is only necessary where the elements are joined in-situ. The hollow spaces between the outer and inner panels are also filled in.
Participants
Owner
Design
General contractor
Prestressing
Relevant Web Sites
Relevant Publications
- (2019): Extradosed Bridges. International Association for Bridge and Structural Engineering (IABSE), Zurich (Switzerland), ISBN 978-3-85748-168-0, pp. 125.
- About this
data sheet - Structure-ID
20076735 - Published on:
04/02/2019 - Last updated on:
06/04/2021
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