The advantages of the steel structure used in the steel structure workshop

The welding of steel structure workshop involves many problems such as steel properties, welding connection and assembly. Attention should also be paid to the matching of base material and welding material, evaluation of welding process and preparation before welding. Welding process control and post-welding treatment are discussed from these perspectives.

1. Review of construction drawings.

Before welding construction, design drawings and construction drawings should be clear, and the person in charge should do a good job in the review of construction drawings. If the form of weld groove is not indicated. Weld gap. Pure bevel Angle. Whether single-sided welding and UT grade should be clearly marked in the drawing review process to avoid blind construction, resulting in step by step error results.

2. Review various certificates.

First, audit the qualification certificate of raw materials, including the quality certificate of incoming steel and welding rod. In order to be safe, sample inspection and retest can be carried out on the materials entering the site. Welding construction can only be carried out after the inspection results are qualified. The second is to determine the professional welding personnel. Welding personnel must obtain the relevant national welder qualification certificate, pay attention to the validity period of the certificate and the scope of welding approval. The on-site welder should check whether the welding machine, electrode and current are matched with the welding components to prevent the base metal from catching fire, prevent arc starting, and do not set up arc leading plate and lead plate according to the provisions. If the construction site is not equipped with welding rod baking equipment, the construction site shall not be inverted welding.

3. Welding process and site control.

Factory welding production should be strengthened inspection, control progress, factory processing production of steel components shall not be processed and produced on site. For example: H-beam welds should be cut and welded under factory conditions, cut on site. Weld quality and weld deformation cannot be controlled by welding, and the quality of inverted welding cannot be guaranteed by on-site welding. If the rods manufactured by the factory cannot be installed on site, they shall not be shortened or extended on site.

Advantages of steel structure used in steel plant:

1. High strength and light weight.

Steel has high strength and elastic modulus. The ratio of density to yield strength is relatively low compared to concrete and wood, and is therefore the same. Steel structure members have small section, light weight, convenient transportation and installation, suitable for large span, high height, heavy bearing structure.

2. Steel has good toughness, good plasticity, uniform material and high structural reliability.

Suitable for bearing impact and dynamic load, with good seismic performance. The internal structure of the steel is homogeneous and nearly isotropic.

The actual performance of the structure is more consistent with the computational theory. Therefore, the reliability of steel structure is very high.

3. High mechanization degree of steel structure manufacturing and installation.

Steel structural members are easy to manufacture in a factory. Construction site assembly. The steel structure components have high precision and high production efficiency. Fast assembly speed, short construction period. Steel structure is the structure of industrialization degree.

4. Good sealing performance of steel structure.