What is steel girder in bridge?

Girder bridges are the simplest bridge type in structure and consist of steel beams shaped to an I-section or box section, called a plate girder bridge or a box girder bridge, respectively. Girder bridges are comprised of deck slabs, on which vehicles and people pass, and of main girders supporting the deck slabs.

What are girder bridges used for?

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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.

Prefabriced Steel Structure Bridge

In some locations it is necessary to span a wide gap at a relatively high elevation, such as when a canal or water supply must span a valley. Rather than building extremely large arches, or very tall supporting columns (difficult using stone), a series of arched structures are built one atop another, with wider structures at the base. Roman civil engineers developed the design and constructed highly refined structures using only simple materials, equipment, and mathematics. This type is still used in canal viaducts and roadways as it has a pleasing shape, particularly when spanning water, as the reflections of the arches form a visual impression of circles or ellipses.

Steel structure building is a popular type of building system now, and its main load-bearing members are made of steel, including column, beam, foundation and roof truss, while roof and wall using variety of materials, such as sandwich panel, steel sheet, wire mesh, foam cement board, ALC board for different building application.

What are box girder bridges and what are the advantages of using them?

The steady and continuous growth of highway network across the world is mostly an outcome of the dramatic increase in population, traffic and expansion of urban areas. And this has lead to lots of changes in the development as well as uses of different types of bridges. As it comes to different types of bridges, you must talk about box girder bridges. Box girders are almost indispensible for long bridges to keep the self-weight of the main structure as low as feasible. According to the width requirements single and/or multiple cell girders are chosen. For example, we can talk about steel box girders. They are very much in demand. They are commonly used for bridges with long spans.

Pecial configuration:

1. Main girder: Thermal protective coating is added at the bottom of the main girder.

2. Security monitoring and control

3. Option: PLC can be added.

4. Cable: high temperature resistant cable.

5. Electrical parts: high temperature resistant type.

6. Cabin: double layers insulation.

7. Safety double brake.

8. Industrial air-conditioning is added in the cabin.

9. Motor with higher protection class and insulation class H.

Features
1) Cost saving and transportation convenient, customer design available.
2) The main beam and column are qualified steel.
3) The steel structure makes the house resisting heavy wind of 140km/h and 8 grade earthquake.
4) Good ability to assemble and disassemble for several times without damage.
5) Widly used in construction site,office building,dormitory etc.
6) Environmental protection effect is good. Steel structure housing construction greatly reduces the sand, stone, the dosage of the ash, used materials mainly green, recyclable or degradation materials, building dismantled, most of the material can be recycled or degradation, won't cause much rubbish.

Building Purpose:

we will recommend the best design for the purpose of the building

A. Warehouse/Storage

B. Factory
C. Agriculture Barn
D. Retail Store
E. Repair/Mechanic Shop
F. Office Space
G. Medical Warehouse