What are the types of steel frame factory roof structures?

Among modern industrial buildings, steel frame factory has become the first choice of many enterprises due to their significant advantages such as high load-bearing capacity, convenient construction, and low maintenance costs. As an important part of the steel frame factory, the roof’s structural type is directly related to the safety, stability and service life of the entire building. The following will introduce several common types of steel frame factory roof structures in detail, and explore their characteristics and application scenarios.

1. Trapezoidal steel roof truss

Trapezoidal steel roof trusses are suitable for steel structure factory with gentle roof slopes. The characteristic of this kind of roof truss structure is that the connection with the columns can be made either hinged or rigid. When rigid connections are used, the lateral stiffness of the building can be significantly improved, making the entire structure more stable. The bending moment patterns of trapezoidal steel roof trusses and simply supported bending members are relatively close, and the force on the chords is relatively uniform, allowing the material to fully exert its effectiveness. Therefore, trapezoidal steel roof structures are widely used in various steel structure workshops.

trapezoidal steel roof truss factory building

2. Triangular steel roof structure

Triangular steel roof structures are suitable for steel structure factory with steep slope roofs. Unlike trapezoidal steel roof structure, triangular steel roof trusses are usually hingedly connected to columns, resulting in a lower overall lateral stiffness of the house. In a simply supported roof truss, the bending moment diagram under load is a parabolic distribution, which is very different from the triangular shape, causing uneven stress on the chords. The internal force at the support is large and the internal force at the mid-span is small, so the section of the chord cannot fully function. In addition, the intersection angle between the upper and lower chords at the support is too small and the internal force is large, resulting in a complex structure of the support node. Therefore, triangular steel roof trusses are used under specific conditions, such as factory buildings that require steep slope roofs.

triangular steel roof structure factory building

3. Parallel chord steel roof structure

Parallel chord steel roof structure is a multi-functional roof truss structure that is widely used in single-slope roofs and double-slope roofs of steel frame factory. In addition, it can also be used in crane brake trusses, trestles, brackets and support systems. Parallel chord steel roof trusses have outstanding advantages in terms of structural force. Similar rods have the same length and node structure forms, which facilitates the industrialization of production. This roof truss structure makes construction more convenient and faster, while reducing maintenance costs. The parallel-chord steel roof truss has a modern appearance that can meet the aesthetic needs of different businesses.

steel frame factory

4. Truss roof structure

Truss roof structures are another common type of structure found in steel frame plants. It consists of a series of interconnected steel members forming a spatial grid structure. The truss roof has excellent load-bearing capacity and stability and can withstand large-area roof loads. At the same time, due to its unique construction method, the truss roof can flexibly adapt to various complex architectural forms. In addition, the truss roof also has good seismic resistance and can protect the safety of the building in natural disasters such as earthquakes.

truss roof structure factory building

In short, there are various types of roof structures for steel frame factory, each with its own characteristics and application scenarios. During the design and construction process, the appropriate roof structure type should be selected based on actual needs and engineering conditions. At the same time, factors such as the safety, stability, and service life of the structure should be fully considered to ensure the overall quality and performance of the steel frame factory.