Analysis on the content of supervision work in the installation stage of steel structure engineering in China

Large-span steel structure engineering is a structure mainly made of steel, and it is one of the main types of building structures. It is the most common structural form in modern construction engineering. Let's analyze the content of the supervision work in the installation stage of China's steel structure engineering:

The supervision work in the installation stage of large-scale steel structures is mainly to supervise the operation of the internal management system and quality assurance system of the contractor, to supervise the implementation of various technical and organizational measures designed by the construction organization, and to carry out construction in strict accordance with the current national norms and standards for steel structures. The supervision of the steel structure installation stage should focus on the following links: The rationality and implementation of the installation plan, installation measurement, connection of high-strength bolts, installation welding quality, actual measurement of installation size deviation, painting, etc. Supervision work should strengthen on-site inspection, parallel inspection and side station supervision. Especially in the case that the quality of some steel structure construction units is low and the construction is still under-standardized, it is more practical to do a good job of on-site inspections and side stations to ensure the construction quality of steel structure projects.

Introduction to the painting process of large space frame steel structure

Compared with other building structures, large-scale space frame steel structures have more advantages. You can refer to the industry knowledge I wrote before. On the news page of the SAFS steel structure official website, today we will introduce its painting process:

Inspection and acceptance of paint coating for space frame steel structure:

1. During and after the surface paint coating construction, the painted workpiece should be protected to prevent flying dust and other debris;

2.  Paint coating post-processing inspection,  it should be consistent in color, bright in color, bright, without wrinkle and pimple;

3. To measure the thickness of paint film, use a touch-type paint film thickness gauge to measure the thickness of the paint film. The paint film thickness gauge generally measures the thickness of 3 points and takes the average value.

Space frame steel structure paint finished product protection: 

1. After the space frame components are painted, they should be temporarily enclosed and isolated to prevent stepping on and damage to the coating;

2.  After the space frame member is painted, if it encounters strong wind or rain within 4 hours, it should be covered to prevent dust and moisture from sticking to it and affect the adhesion of the coating;

3. When the painted components need to be transported, attention should be paid to prevent bumping, prevent dragging on the ground, and prevent the coating from being damaged;

4. Do not touch the acid liquid on the mesh frame components after painting to prevent the coating from being bitten.

The quality problems that should be paid attention to in the paint of space frame steel structure: 

1. The temperature of the paint coating operation should be between 5 and 38 °C. When the weather temperature is lower than 5 °C, the corresponding low-temperature coating material should be used;

2. When the temperature is higher than 40℃, stop the paint coating operation. After treatment, the coating operation is carried out;

3. When the air humidity is greater than 85%, or there is condensation on the surface of the component, do not carry out the paint coating operation, or carry out the coating operation after treatment;

4. Before the production of the space frame structure, the hidden parts of the components and the parts of the structure interlayer that are difficult to remove rust should be removed in advance and painted in advance.

Features of building roof steel color plate

Color steel plate is a kind of steel plate with organic coating. It has a wide range of applications and is mainly used for the walls and roofs of large public buildings, public workshops, prefab houses and other places.What are the characteristics of the steel color plate?

 

First of all, steel color panels are divided into veneer, color steel composite panels, floor decks, etc., which are generally used in the walls and roofs of public buildings, workshops, prefab houses and integrated houses. Because the composition is a very light organic material, it still weighs a little less than normal bricks. And it is resistant to corrosion, high temperature and high strength. So the scope of application is also wider. Because there are many types, there are more places to use.

 

Secondly, because the spliced ​​installation method is used, its installation and disassembly are more convenient. The rich colors meet the needs of many prefab buildings and achieve customer satisfaction. And the material is non-combustible. Fully meet the fire protection requirements of the mobile house. Because of its strength, it can adapt to most bad weather and terrain, and can still be used normally. The cost of production and purchase is also lower than that of general building materials, which can save some costs.

 

Finally, the steel color plate can maintain a large degree of heat preservation and heat insulation, and has the effect of maintaining room temperature. To a certain extent, the steel color plate can replace the use of bricks, will not cause a lot of construction waste, is environmentally friendly, and has a long service life, and it is not easy to rust. It can also be recycled and reused, and it is a very environmentally friendly new building material.

Why is steel structure processing and manufacturing an inevitable product of the era of economic development?

In recent years, a large number of new building materials have been developed and researched. With the promotion of energy saving, environmental protection and green buildings, steel structure processing and manufacturing was born. The construction field is no longer the era when reinforced concrete dominates, and because of the advantages of steel structure itself. On a global scale, especially in some areas of developed countries, steel structures have been reasonably and widely used in the field of construction. Why is steel structure fabrication popular in the construction industry? How is its unique advantage manifested? The following SAFS steel structure processing manufacturers will analyze it for you, and hope to help you.

The steel structure engineering system has the comprehensive advantages of light weight, quick installation, short construction period, good seismic performance and less environmental pollution.

The specific performance is as follows:

Earthquake resistance: Insiders know that the roof structure of low-rise villas is basically a triangular roof truss made of cold-formed steel members, which has stronger earthquake resistance and can be used even in places with high earthquake magnitudes.

Wind resistance: Steel structure buildings are light in weight, only one-fifth of that of brick-concrete structures. It can resist the hurricane of 70 meters per second, so that life and property can be effectively protected.

Durability: Light steel structure residential structures are all composed of cold-formed thin-walled steel member systems. The steel frame is made of super anti-corrosion high-strength cold-rolled galvanized sheet. Effectively avoid the influence of corrosion of steel plates during construction and use, increase the service life of light steel components, and make the service life of steel structures up to 100 years.

Buildings processed with steel structures also have the advantages of comfort, heat preservation, and energy saving, which are not available in traditional reinforced concrete buildings. So some people say that the steel structure even prolongs the life of the house, and there is some truth to it. It can be seen that the steel structure series products are still very useful, and the application will be more extensive.