METAL SCOPE INDIA
A Quick Glimpse on Steel Bridges & Its Advantages
Steel bridges are widely used around the world in different structural forms with different span length, such as railway over & under bridges, steel flyovers, highway bridges and foot over bridges.
Steel is an ideal material for bridges. It is an essential part of modern bridges because it is strong and has a long life, even
in the harshest conditions. New High strength, high performance, and weathering steels boast greater toughness and weldability at affordable prices. It can be used to build bridges of any length because of its durability and ease of
manufacture and maintenance.
The Metal Scope has extensive skills and expertise in design, structural engineering ,fabrication, project management & erection for steel bridges.
Extensive Skills and Expertise
Types of Steel Bridges
METAL SCOPE INDIA
Advantages of Steel Bridges
Decreased Weight One of the biggest advantages of steel is weight savings, which means lower erection costs since the bridge since the bridge pieces can be handled with lighter equipment. In addition, for the same span and load, a steel girder requires
less depth than a concrete girder, which can be helpful when constrained by vertical clearance requirements.
Steel components are made to closer tolerances, which often translates into a faster erection.
If the substructure and superstructure are designed properly, the lighter weight of steel will allow lighter
foundations than for concrete.
Generally, it’s easier to make spans continuous for both live and dead loads and to develop composite action with steel designs rather than with concrete ones.
Life-cycle cost Many factors affect the life of a bridge beyond whether or not the superstructure is comprised of steel or concrete such as design, type and frequency of traffic, environment, weather, maintenance,and changes in usage and conditions over time. In
short, each bridge is a unique case reflecting these factors and the state of the art at the time it was built.
Life cycle performance and the long term durability of steel bridges have been clearly documented. The long term durability of concrete in bridges remains uncertain. It’s easier to inspect and determine the structural state of a steel bridge where all the
components are visible.
The long-term durability and cost effectiveness of steel bridges will be further enhanced by the use of high performance steels with weathering capabilities.
STEEL is the most environmentally friendly material used in bridge construction.
Steel permits costeffective longer spans for crossing streams, lakes, wetlands, and environmentally protected areas. The long
spans may eliminate or at least minimize environmental impact. In some cases, the long spans possible with a steel bridge can
avoid the need for costly environmental impact studies. Longer spans also reduce the number of piers necessary for a crossing, minimizing the number of elements affecting the aesthetics.
Lighter Weight Construction's impact on an environment is lessened because the lighter weight of steel increases a crane’s reach. Also for the
same span length, the contractor can use smaller cranes and other equipment.
Steel bridge structures can be erected quickly while habitat creatures are still in hibernation or otherwise dormant.
BRIDGES are usually significant structures that have the power to add or detract from the landscape. it has less to do with
material selection and more to do with the overall design in terms of geometry , proportion, structural concept ,and integration with the site.
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