Precast Concrete Arch Bridge Solution

The Precast Concrete Arch Bridge Solution has shown that overfilled reinforced concrete arch bridges are extremely durable and require virtually no maintenance: They have no exposed bridge deck, no transition joints or slabs, and no bridge bearings. Additional full scale load tests in Germany, Australia and the USA confirmed the validity of the BEBO System arch analyses and the large load carrying capacity of the overfilled arches.

Applications:

Bridges

• Spans from 3.6m to 31m and more - for highways, railways, pathways, bicycle racks, landscaping, etc
• Standardised designs - as per Indian BIS a. RC standards and codes
• Heavy live loads with high overfills - capable of supporting heavy freighter aircraft and mining haulers
• Smooth approaches - from earth embankments due to soil overfill, does not require any approach slab
• Low life cycle costs - traffic runs on overfill and not over an exposed bridge deck
• Aesthetic structures - the true arch form is accentuated.

• Rapid construction - minimum obstruction to traffic during construction
• Drainages under airport prons/ runways - can carry heavy loading and large overfills
• Drainages under stack yards - can carry heavy bulk loading.

• Cut-and-cover tunnels - with overfills as much as 30m
• Multi-span viaducts - for all forms of traffic grade separation
• Pedestrian, bicycle and animal crossings - under busy expressways

• Spans from 3.6rn to 12.8m are cast as a single unit
• Spans from 10.6m to 25.6m are cast as twin leaves
• The thickness of concrete element is uniform over the development. In case of twin leaf spans. the patent crown joint area is thicker to allow for in situ casting for the monolith connection without formwork
• The minimum overfill height required is 500mm and the uniform design holds up to 500mm overfill. Non-standard applications requiring higher overfills and/ or unconventional loadings are designed on the Project-to-project basis by BEBO, Switzerland.

• Spans range from 9.1m to 16.4m and are cast as twin leaves only to facilitate transportation from precast yard to site In regular trailers.
• The thickness of concrete element is uniform over the development except at the crown. where the patent crown joint area is thicker to allow for in situ casting for the monolith connection without formwork
• The minimum overfill height required is 500mm a. the uniform design holds up to 5000mm overfill. Non-standard applications requiring higher overfills and/ or unconventional loadings are designed on the Project-to-project basis by BEBO Switzerland.

• Spans range from from12.2M to 30m and more and are cast as single units or twin leaves, depending on the span
• Overfills may range from minimum requirement of 500mm to a maximum of 1000mm
• Since the tangent at the supports is inclined, there are heavy horizontal forces be supported by the foundations. Foundations are designed on a Project-to-project basis with site-specific geotechnical data.