Acrow steel props are supporting systems made of steel materials. It is usually composed of braces, pressing bars, beams, columns, trusses and other components made of shaped steel and steel plate. And each member or component is connected with welding seam, bolts or rivets. Compared with traditional building structure like reinforced concrete, wood, masonry, and other structures, it has the following characteristics:

1.Uniform material, high reliability.

Steel produced in the steel plant has stable quality with strict inspection control. Moreover, the structure of steel is uniform, its physical and mechanical properties are close to each other, which is in line with the assumption that the material commonly used in the structural theoretical calculation is homogeneous and isotropic. Therefore, the actual force condition of the steel structure is consistent with the theoretical calculation result, and the working reliability is high.

2.High strength and lightweight.

Although the density of steel is higher than that of other building materials, its strength and elastic modulus are also higher than other buildings. Both the tensile and compressive strength of steel materials are higher. Therefore, the ratio of the gravity density of steel and the ratio of design strength is much smaller than that of concrete or masonry and is also smaller than that of wood. For example, when the load and span are the same, the dead weight of the steel roof structure is about 30-45% of that of reinforced concrete roof. While in a light steel roof truss, it can be less than 20%.

3.Good plasticity and toughness, strong ability to resist impact and vibration.

Steel is not only of high strength and almost uniform material but also of good plasticity and toughness.

Therefore, under general conditions, the acrow steel prop will not break suddenly due to accidental or local overloading and has a strong resistance to impact and vibration load.

4.Suitable for the machining process, a high level of industrial production.

The acrow steel prop is usually manufactured in the factory with a high degree of mechanization. So it is a kind of structure with high production efficiency, high speed, high manufacturing precision, and good quality. That is to say, acrow steel prop is a kind of structure manufactured with a high degree of mechanization.

5.Convenient transportation and installation. High construction speed. 

Acrow steel props are lightweight and have the ability of shock-resistant and vibration-resistant, which makes them easy to transport and install. In addition, the construction period is short as the structural components are manufactured with precise fabrication and can be bolted together, making the assembling and installation easier.