Temporary Steel Box Girder Bridge Rectangular or Trapezoidal in Cross section

High Performance Temporary Steel Box Girder Bridge Rectangular or Trapezoidal in Cross-section

Description

Bailey Bridge (Panel Bridge) is a standard bridge equipment, adopted extensively and the most popular in the world, possessing the features of simple structure, convenient transport, speedy erection and easy disassembling. Steel Box Girder Bridge refers to a beam bridge whose main beam is in the form of a thin-wall closed section. Long hollow trusses made of steel or concrete are usually used as beams. This makes the bridge light and sturdy. Bridges constructed using this method are called Steel Box Girder Bridge.

Specification

A steel box girder bridge is a bridge in which the main beams comprise girders in the shape of a hollow box. The box girder normally comprises either prestressed concrete, structural steel, or a composite of steel and reinforced concrete. The box is typically rectangular or trapezoidal in cross-section.

Application

Spans from 3.6m to 31m and more - for highways, railways, pathways, bicycle racks, landscaping, etc

Standardized 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.

Design
Design of steel box girder bridge normally follows the same principles as for other bridges. However, because they are normally significantly lighter than vehicular bridges, they are more vulnerable to vibration and therefore dynamics effects are often given more attention in design.
To ensure steel box girder bridges are accessible to disabled and other mobility-impaired people, careful consideration is nowadays also given to provision of access lifts or ramps, as required by relevant legislation.

Advantage

Long-term corrosion protection

High level of mechanical resilience

Perfect all-round protection also in cavities and edges

Cathodic corrosion protection

Attractive appearance

Very economical

Maintenance free

Good Eco-balance, environmentally-friendly process

Features
Modular, pre-engineered, pre-fabricated bridge system
Standard interchangeable components
Highly adaptable, fully reusable and re-locatable
Transported in standard ISO containers
Quick and simple to build using labour
Fully galvanized for long life and minimum maintenance
3.048m module length
4.2m single lane
Proprietary steel decking systems to suit different loading requirements
Durbar finish or factory applied anti-skid surfacing
Full highway load carrying capability
Simple, cost effective foundations

Our company

Our experienced team is focused on your steel bridge project's success, from start to finish. Our proven ability to identify and overcome design inconsistencies, potential problems with erection, and shipping obstacles results in the fabrication of structural steel that is right the first time, helping you avoid costly construction delays.

Finally

The success of the Bailey bridge was due to the simplicity of the fabrication and assembly of its modular components, combined with the ability to erect and deploy sections with a minimum of assistance from heavy equipment. Many previous designs for military bridges required cranes to lift the pre-assembled bridge and lower it into place. The Bailey parts were made of standard steel alloys, and were simple enough that parts made at a number of different factories could be completely interchangeable. Each individual part could be carried by a small number of men, enabling army engineers to move more easily and more quickly than before, in preparing the way for troops and materiel advancing behind them. Finally, the modular design allowed engineers to build each bridge to be as long and as strong as needed, doubling or tripling up on the supportive side panels, or on the roadbed sections.