What is the function of girder bridge?

The bridge in which girders are used for supporting its deck is called the girder bridge. Such girders can be either the rolled steel girder or the box girder. This bridge functions by transferring the load coming from the deck to the piers and the abutments through the girders.

What is girder?

U-girders are precast pre-tensioned, U-shaped girders on which track laying can be done immediately. “This is a standard span with twin U-girders of 28 m length each in one span and the total weight of one U-girder is approximately 160 MT.

What is an example of a girder?

Girder Sentence Examples A main girder consists of an upper and lower flange, boom or chord and a vertical web. It is the junction between the Oudh & Rohilkhand and East Indian railways, the Ganges being crossed by a steel girder bridge of seven spans, each 350 ft.

What is prestressed girder?

Precast prestressed girders are a type of concrete girder that facilitates the rapid construction of a bridge using girders fabricated off-site and then transported and erected into place at the job site. Prestressing members allows for a lower span-to-depth ratio, which allows for longer spans.

What is the difference between a girder and a beam?

The main difference between a girder and a beam is the size of the component. In general, workers in the construction industry refer to large beams as girders. If it is the chief horizontal support in a structure, it is a girder, not a beam. If it is one of the smaller structural supports, it is a beam.

What are the types of girder?

The two most common types of modern steel girder bridges are plate and box. The term “girder” is often used interchangeably with “beam” in reference to bridge design. However, some authors define beam bridges slightly differently from girder bridges. A girder may be made of concrete or steel.

Where is a girder placed?

be placed on a support pilaster (Figure 3-8) integrated into the foundation wall (flush or dropped). Girders can also be “dropped” by placing them into a notch in the foundation wall called a beam pocket (Figures 3-9 and 3-10). When girders are dropped, the joists rest directly on top of them.

Where are girders used?

A girder is commonly used to build bridges. A girt is a vertically aligned girder placed to resist shear loads. Small steel girders are rolled into shape. Larger girders (1 m/3 feet deep or more) are made as plate girders, welded or bolted together from separate pieces of steel plate.

How are girders made?

A plate girder is a girder that has been fabricated by welding plates together to create the desired shape. The fabricator receives large plates of steel in the desired thickness, then cuts the flanges and web from the plate in the desired length and shape.

When should you use a girder?

Girders mainly support smaller beams and are typically used to construct bridges and flyovers because they are capable of carrying extremely heavy loads. Girders are mostly used as box or Z shape members as girder bridges which are the most common and simple bridge type used in construction.

How many types of girder bridges are there?

A girder bridge is a bridge that uses girders as the means of supporting its deck. The two most common types of modern steel girder bridges are plate and box….Girder bridge.