At its simplest, the form can be traced back to the simplest early log bridges. Box girders are used for highway bridges, railway bridges and footbridges – different structural forms are chosen for each of these applications. ADVERTISEMENTS: This article throws light upon the top six types of long span bridges.

This name has been given because of their shape. I-joist girder type is commonly used in bridges. Use L-type abutments with expansion joints at the bridge ends where bridge length exceeds these values.

The box girder normally comprises either prestressed concrete, structural steel, or a composite of steel and reinforced concrete. The box-girder is in the form of a box with two flanges and two webs. Slab and girder bridges are used when the economical span limit of solid slab bridges is exceeded. Steel Arch Bridges 4. 2 shows the general plan vation ofthe concrete bridge, w

[citation needed]The term "girder" is often used interchangeably with "beam" in reference to bridge design. Girder bridges are the most common types all over the world. A typical box girder bridge is comprised of top and bottom concrete slabs connected by a series of vertical bridge stems usually called webs that might be inclined or vertical as desired. A box girder bridge is one in which the principal structural element is one or more closed cells, acting in bending. Rail Track Box girder can be precast or cast in place and it is generally existing in prestressed condition. Highway bridges Composite box girders Box Girder Bridge is a bridge where the key beams consist of girders shaped like a hollow box. A girder bridge is a bridge that uses girders as the means of supporting its deck. Girder bridges have existed for millennia in a variety of forms depending on resources available. Railroad Bridges.

Continuous Plate Girder Bridges 2. For simply supported spans, this limit is generally found to be nearly 10 metres and for continuous or balanced cantilever type structures, this limit is 20 to 25 metres. The two most common types of modern steel girder bridge are plate and box. This page contains information useful to those interested in the design or research of railroad bridges. Girder (Box or I-joist) Just like the beam, girder is used in the bridge. Only the superstructm of the two concrete altemate covered in this article. Box girders comprise structural steel, pre-stressed concrete, reinforced concrete or composite of steel. The guide has been reviewed by an Advisory Group of experienced bridge designers. Guide to Bridge Technology Part 3 discusses the need for the bridge designer to address the specific requirements such as the transporting of goods and services, development of flood free routes, navigational clearances, longer spans, and construction methods to reduce costs and reduce construction times. A box girder is formed when two web plates are joined by a common flange at both the top and bottom.

About 80% of these are bridge cranes, 1% are other material handling equipment. This document is available to the public This is a classical structure and next oldest after the girder bridge.

Design Guide for Composite Box Girder Bridges Composite box girder construction offers an attractive and economic form of construction for medium span highway bridges. cluded three types: (1) steel box girders with an orthotropic steel plate deck, (2) cast-in-placesegmental prestressed concrete box girders, and (3) precast segmental prestressed concrete box girders.
Alibaba.com offers 988 bridge girder gantry launcher products. Continuous Plate Girder Bridges: Simply supported … The two most common girder types are plate girders and box girders. The box is typically rectangular or trapezoidal in cross-section.

Steel Bridge Design Handbook Design Example 4: Three-Span December 2015 ... girder bridges offer advantages over other superstructure types in terms of span range, stiffness, durability, and ... Steel Tub Girder, Steel Box Girder, Lateral Bracing, No restrictions. In situations where bridge skew angles exceed 30 degrees, consult the Bearing and Expansion Joint Specialist and the Bridge Design Engineer for recommendations and approval. Cable Stayed Bridges 6. Girder (Box or I-joist) Just like the beam, girder is used in the bridge.
Not only are these bridges beautiful to look at but the laws of physics make them extremely stable and robust.