Views: 0 Author: Site Editor Publish Time: 16-05-2025 Origin: Site
They are typically classified as hot-rolled and built-up products, featuring cross-sectional shapes like angles, channels, I or H, square, rectangular, round. Globally, the demand for steel structures continues to rise steadily.
There are many different types of steel structures, each designed to meet specific requirements. Here are some of the most common types of steel structures:
2.1 Steel frame structures
These are the most common type of steel structures and are used in a wide range of buildings, from high-rise offices to residential homes. The steel frame structure consists of vertical steel columns, horizontal steel beams, and steel connections that hold the members together. The beams and columns are connected by welding or bolting, creating a rigid and stable structure.
2.2 Steel truss structures
Steel truss structures are a type of construction method that uses a series of interconnected triangles to distribute weight evenly across the structure. Steel truss structures are commonly used for roofs and bridges, but can also be used for other applications where long spans are required.
2.3 Steel arch structures
These structures are used for bridges and buildings where a long span is required. The steel arch structure consists of a curved steel arch that supports the weight of the structure. The arch is made up of a series of connected steel members that form a curved shape.
2.4 Steel cable structures
Steel cable structures are a type of construction method that uses steel cables to support the weight of the structure, creating a suspension system. They are commonly used for suspension bridges and roofs. The steel cable structure consists of steel cables that are anchored to towers or columns at either end of the structure. The cables are then stretched taut across the span of the structure, creating a suspension system that supports the weight of the structure. The cables are anchored to the ground or to concrete blocks to provide additional stability.
2.5 Steel space frame structures
Steel space frame structures are a type of construction method that uses a three-dimensional framework of steel tubes to support the weight of the structure. Steel space frame structures are commonly used for large buildings such as airports and sports arenas. The steel space frame structure consists of a series of steel tubes that are welded together to create a three-dimensional framework. The framework is then covered with roofing and cladding materials to create the final structure.
2.6 Light gauge steel structures
Light gauge steel structures use lightweight steel frames to support the weight of the structure and are commonly used for residential and small commercial buildings. The light gauge steel structure consists of steel frames made of thin sheet steel that are cold-formed into C-shaped or Z-shaped sections. The sections are then assembled into a frame using screws or bolts.
2.7 Pre-engineered steel structures
Pre-engineered steel structures are a type of construction method that uses standardized components that are prefabricated off-site and assembled on-site. Pre-engineered steel structures are commonly used for industrial buildings such as factories, warehouses, and distribution centers. The pre-engineered steel structure consists of standardized components such as steel columns, beams, purlins, and girts that are designed to fit together easily.
Structural steel shapes are defined by many standards worldwide, including angles, tolerances, dimensions, and cross-sectional measurements. These standards also name the different steel shapes. Many sections are formed by hot or cold rolling, while others are made by welding together flat or bent plates.
Here are standard common structural steel shapes:
· L- shape: is often used as a corner section in construction, industry, commerce, transportation, or mining.
· U-shape: two sides parallel to the correct angles resemble the shape of the letter “U”. This type has relatively high durability.
· C-shape: has a cross-section resembling the letter “C”; this form is used to make purlins below the roof with a supporting effect.
· Z-shape: there is a cross-section resembling the letter “Z”, similar to the form of “C”, this form is also mainly used to make purlins.
· Tubular hollow cross form: tubular hollow cross sections are highly resistant to twisting and are used mainly in multi-axis constructions.
· Flatform: often referred to as plates, used to attach to construction parts to enhance bearing strength.
· Rectangular hollow cross-section: The rectangular open cross-section resembles the circular hollow cross-section. This type is often used in many mechanical and construction steel industries.
· Square hollow cross-section: Since this form is difficult to combine with other forms, the square open cross-section is used only as a column or pillar of the building.
· Taper-shaped beams and columns: popular in industrial prefabricated steel buildings.
When compared, steel dominates every other conventional structural material such as stone, cement, or wood in terms of strength/weight ratio. It means that the tolerance against poor foundations is higher.
Ductility is the ability of the material to withstand loads without failure. Thanks to the elastic nature of steel, it can return to its original shape after bending. Yielding up to some point prevents premature failures. Hard and brittle materials can fail suddenly, thus are not favourable.
The ability of a material to absorb energy is called toughness. Structural steels have high toughness values; thus they are very suitable for construction applications. They are both strong and ductile. Also, it should be mentioned that the main difference between mild and structural steel is that structural steels are stiffer in order to carry higher loads without needless sagging.
Steel structures make so various different architectural designs possible. All around the world, astonishing steel buildings, towers, and bridges can be witnessed. One would be surprised to find out that this material was not economically reasonable to use as a structural component, just one hundred years ago.
In a comparison with reinforced concrete, a 40×40 cm2 steel carrier can do the same job as a 100×100 cm2 reinforced concrete carrier. This example shows that a net saving in terms of a usable area can be done (5).
There exist some drawbacks which can be solved with additional costs like corrosion and fire susceptibility, or the risk of buckling under heavy loads. Yet, major advantages may still outweigh these drawbacks in particular design applications.
Structural steel is a highly durable material that can withstand decades of use in even the harshest environments. The high durability of structural steel makes it ideal for use in applications where long-term performance and reliability are critical. For example, structural steel is used to construct bridges, buildings, and other structures expected to last for many decades.
Structural steel is a sustainable material that can be recycled repeatedly. In fact, steel is one of the most recycled materials in the world. In 2021, the steel industry recycled 1.6 billion tons of scrap, equivalent to 74% of the steel produced that year.
Recycling steel has many environmental and economic benefits. It reduces the need to mine and process new iron ore, which saves energy and reduces greenhouse gas emissions. It also helps to conserve landfill space.
By carefully considering the disadvantages of structural steel and taking steps to mitigate them, engineers and architects can complete design and construct safe, durable, and aesthetically pleasing structural steel structures.
What comes to your mind when you hear the word structural steel? Hopefully, it’s not just construction. Structural Steel is that the most preferential metal by architects, designers, engineers, contractors, and fabricators. Due to properties especially highly durable, corrosion-resistant, tensile, and relatively low price has found used in various fields.
· Buildings: Structural steel is the backbone of many modern buildings, from skyscrapers to homes. It is used to create the frames that support the weight of the walls, floors, and roof.
· Bridges: Structural steel is also used to build bridges, which can be very long and span large distances. It is strong enough to support the weight of vehicles and pedestrians, and it can also withstand the forces of wind and water.
· Towers: Structural steel is used to build towers, such as telecommunications towers and wind turbines. These towers must be able to withstand strong winds and other extreme weather conditions.
· Other structures: Structural steel is also used in a variety of other structures, such as warehouse constructions, stadiums, and industrial plants.
Structural steel is a versatile and durable material that is essential for modern construction. It is strong, lightweight, and relatively inexpensive, making it an ideal choice for a wide variety of applications.
It can be troubling to decide on such an important matter. A wrong decision in the manufacturer can be costly. Our advice given below can be useful when choosing your manufacturer
Determine your priorities and expectations from your manufacturer before the interview with the candidates.
Rushing into a choice of the manufacturer may take more of your time than evaluating them. Test multiple companies if necessary and choose the best one for you.
A company with a good history is less likely to let you down, best to keep that in mind.
There are lots of invisible costs in the process of procurement. Hiring experienced professionals or companies for your procurement projects may cut your expenses substantially. Feel free to ask anything about this subject to Yena’s experienced team in various structural steel projects.
QingDao Xinguangzheng is well experienced in steel construction projects like high rise buildings, roof systems, bridge parts, industrial buildings.
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