The Type of Steel Building Structures

Base Plate

This article introduces the four different types of steel building structures.

There are four types of steel building structures. They are:

  • Portal rigid steel frame
  • Frame structure
  • Truss structure
  • Grid structure

Portal Frame Steel Building Structures

Portal Steel Frame Buildings are the most common structure system. The composition of Portal Steel Frame Buildings has a lot of advantages, such as high load-bearing capacity, wide span and long life, which makes it suitable for industrial buildings and large-span structures.

Portal Steel Frame Buildings can be divided into two types: portal frame buildings and portal frame buildings with floor trusses and roof trusses. The former is mainly composed of column beams, beams and girders, while the latter is mainly composed of floor beams and roof beams.

Portal steel frames are usually composed of two-dimensional (2D) or three-dimensional (3D) steel parts. 2D steel parts include columns, columns and beam flanges, while 3D steel parts include columns, columns, beams and beam flanges.

Laser Cutted Steel
Laser Cutted Steel

Portal Rigid Steel Frame

Portal rigid steel-frame structures are the most common form of steel structure. They are formed by two rigid frames, which are connected by a rigid beam and each has its own foundation. The plane of each frame is an independent plane. The plane can be a plane or plane beams. Plane frames have a smaller volume than the planar beam, so they need smaller area foundations and have less impact on the land area due to their small size, but also because they can be installed quickly without affecting road traffic in cities with high construction pressure by using a crane to install them.

Dimension Check Steel Profile
Dimension Check Steel Profile

Common Nodes of Portal Frame

The portal steel frame’s particular nodes include column foot node, beam, column to beam node, roof beam node, column and roof bracing, tie beam connection node, and gutter bracket.

Column foot node: The column foot node is a specially designed connection between the column and foundation. It can be used to support the load of the building without any other steel structure.

Beam: A beam is a structural member that supports only part of its own weight through bending or axial compression. It can be used to support gravity loads such as walls or floors.

Column to beam node: The column to beam node is made from two pieces of steel that connect a column with a beam or joist. It has been designed for high strength and long life span which are needed for typical construction projects like commercial buildings or industrial plants.

Roof beam node: This type of connection is used between two different beams or joists in order to form a new composite section with increased stiffness and strength compared to individual components alone.

Steel Structure Packaging
Steel Structure Packaging

Steel Building Frame Structures

Steel building frame structures are the most common type of steel building construction, and they represent the most economical way to build a commercial or industrial structure. They have many advantages over other types of building frames, including cost savings, ease of installation and flexibility in design.

Steel building frame structures consist of columns and beams that are often welded together to form a strong, rigid structure. The columns are typically 8 feet wide and 12 feet tall, while the beams can be up to 48 inches wide and as long as needed for your specific project.

The primary advantage of steel framing is its cost-effectiveness: It costs about half as much as concrete for equivalent building size, according to the National Ready-Mixed Concrete Association (NRMCA). Steel also has less thermal conductivity than concrete, meaning it doesn’t require insulation on interior walls as much as concrete does — another cost savings!

Steel buildings can be erected quickly because their components are prefabricated in a shop environment before they’re shipped out to sites for assembly. This saves time during construction because crews don’t need to wait for materials or components before they can start working on them; they already have everything they need right there on site.

Laser Cut Structural Profile
Laser Cut Structural Profile

Frame structure

A-frame structure consists of columns and horizontal beams. The structure is designed to resist bending, and it is often used in buildings where the walls are not load-bearing. The columns are rigidly connected to the foundation while the horizontal beams are connected with moment connections at their ends. When an eccentric load is applied on a beam, this moment connection will transfer it directly to the column by virtue of its location on one end of that particular beam.

Truss structure

The truss structure is the most economical of all steel building structures. It can be used for small and large buildings, for example, factories, exhibition halls, theaters, airports and stadiums. With a truss structure, you can have a large span as well as a high-rise capacity. The costs of these types of buildings are lower compared to other construction materials because they use less concrete and wood materials than other types of construction like block or timber-framed buildings.

What are the Types of Truss Structures?

Truss structures are structures that are composed of a series of triangles. Trusses are used to build roofs, bridges, and many other types of construction.

There are three basic types of trusses:

1) Warren Truss – This type of truss is the most common type used today. The Warren Truss has two parallel top chords (the top pieces) and two sets of parallel bottom chords (the bottom pieces). The top chords are connected to each other at each end by vertical members called “top chord tie members.” The bottom chords are connected to each other at each end by diagonal members called “bottom chord tie members.”

2) Pratt Truss – In this type of truss, you have two parallel top chords (the top pieces), but only one set of parallel bottom chords (the bottom piece). In addition, the ends of the top chord tie members and bottom chord tie members in this type of truss are connected together by horizontal struts that extend from one end to the other.

3) K Truss – The king of all trusses and the strongest, the K-truss is made up of two triangles connected at one point. This results in the most efficient use of material and allows for large spans. The only downside? It’s more expensive than other truss types. If you’re planning on building an industrial complex or a warehouse that will house heavy machinery and equipment, then this is the type of truss structure for you.

4 ) Howe Truss -The Howe truss was designed by William Howe in 1844 as a way to support bridges over railways without putting too much stress on either side. It’s also known as a “double-intersection” truss because it uses two intersections at 90 degrees instead of just one like other types of trusses do. This makes it very strong, but less economical than other options such as K-trusses or Fink trusses which use triangular shapes instead of rectangles.

5) Fink Truss: The Fink truss is a patented roof truss design developed by William Fink in 1896. It is a form of portal frame made from straight timbers, with each timber having a single end bearing on another timber or on a wall plate. A pair of diagonals also forms a triangle that is structurally sound, but not quite rigid enough for some applications on its own.

6) Gambrel Truss: The gambrel truss is an arch-shaped truss used for roofing and framing buildings that were originally built without steel beams to support them. It consists of two triangular sections connected by vertical members called chords, which provide lateral stability against racking forces such as those caused by earthquakes or strong winds.

Transport Racks
Transport Racks

Grid Structure

The grid structure is a type of steel building construction in which the floor system is essentially a grid, with posts and beams that form a rectangle. Using this method, you can build any shape you want. In fact, it’s one of the most economical methods available because it doesn’t require any more material than necessary to support whatever weight is placed upon it. This makes it perfect for warehouses and factories where you have large open spaces to cover but don’t need much height.

Base Plate
Base Plate

Which is Better-Reinforced Concrete or Structural Steel?

We are often asked, “Which is better reinforced concrete or structural steel?” The answer to this question is not a simple one. Each material has its own strengths and weaknesses that make it more suitable for certain applications and less suitable for others.


Concrete can be made to be very strong under compression (like when you stand on a sidewalk or driveway) but not so much under tension (like when you step off the sidewalk and onto the grass). Concrete is also brittle and will crack if subjected to bending forces, which makes it unsuitable for use in long spans. The other main disadvantage of concrete is that it takes a long time to cure (several weeks), which means that many concrete projects are delayed until the material is ready.


Steel is much more flexible than concrete and can span longer distances with fewer supports needed along its length. Steel also has greater tensile strength than concrete so it can carry heavier loads than concrete, which is important when designing buildings that carry heavy loads such as office buildings or high rise apartments. Steel can be made stronger than concrete by using thicker cross sections or by adding bars into the cross-section at regular intervals along its length, which increases its resistance to cracking under bending forces.

Yena’s success is the result of long-term, dedicated effort in developing and manufacturing a wide variety of steel structures. The company’s technology is recognized by mainstream construction markets with a commitment to continuous development in brand image, product quality and service reliability. From conception to completion, our professional and experienced staff will be on hand to consult, coordinate and assist you at every step of the way. We look forward to working with you in the near future!

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