The Different Types of Structural Steel Professionalمنذ 5 أشهر - Multimedia - Saoula - 100 الآراء
Steel bridge structure – advantages, elements and components
Steel bridges are widely used around the world in different structural forms with different span length, such as highway bridges, railway bridges, and footbridges. The main advantages of structural steel over other construction materials are its strength, ductility, easy fabrication, and rapid construction. It has a much higher strength in both tension and compression than concrete, and relatively good strength to cost ratio and stiffness to weight ratio. Steel is a versatile and effective material that provides efficient and sustainable solutions for bridge construction, particularly for long span bridges or bridges requiring enhanced seismic performance.
Amongst bridge materials steel has the highest and most favorable strength qualities, and it is therefore suitable for the most daring bridges with the longest spans. Normal building steel has compressive and tensile strengths of 370 N/sq mm, about ten times the compressive strength of a medium concrete and a hundred times its tensile strength. A special merit of steel is its ductility due to which it deforms considerably before it breaks, because it begins to yield above a certain stress level.
Advantages of Steel bridge structure
The multiple advantages of steel equate to a more cost-effective option than other building materials. Smaller crews working with smaller scale construction equipment can install and erect steel-based projects because of its light weight. This lighter weight also allows for faster installation, so projects are erected more quickly. This timeliness also affords key cost-savings advantages to construction companies. Some of its advantages are-
Lower construction costs compared with other materials helps save money for municipal governments. Faster construction reduces traffic and business disruption.
Steel bridges last longer than other types, which means they don’t have to be replaced as quickly. Steel components require less maintenance and don’t need to be replaced as often.
Steel is highly adaptable to different climates and geographic conditions. The relative lightness of steel compared with other materials reduces energy use during delivery and construction.
Steel components are less likely to be damaged during extreme events like hurricanes and earthquakes. Steel components are used to transmit critical utility services across bridges.