Steel structures have these applications in green building

Steel is a kind of green building material with high strength and stable performance, which can be factory-produced and recycled. As the steel structure technology becomes more and more mature, steel structure has more development in green environment.

The realization of steel structure

1.Application scope of steel structure

Steel has high strength, the steel structure built with it is light in self-weight, and the steel structure is usually molded in the factory and assembled on site without on-site mold support or long time maintenance.

Steel construction is convenient, short cycle, and the structure built by it can be well adapted to the building modeling, smooth and light, so the advantages of steel structure are quite obvious in the building with large span and peculiar modeling.

2.Main types of steel structure

Steel structure has formed a variety of mature structural systems after so many years of development.

For the buildings with regular column network and regular floor height, there are many structural forms to choose from, such as steel frame structure, net frame structure, net shell structure, truss structure, portal rigid frame structure and so on. The selection of its structural program has a great influence on the whole structure, not only the economic indicators, but also has a greater impact on the architectural effect.

Comparison and optimization of the scheme is the most important green building measure. According to the shape of the building, load and other characteristics, choose a reasonable structural form, under the premise of ensuring the structural safety and meeting the building function, strive for the simplest way of force transmission, the most economical materials and the lowest cost.

 

3.Technical support for optimization of steel structure scheme

Modeling is an essential and vital step in steel structure design. It is relatively easy to model conventional steel frames, net frames and net shells. Structural analysis software such as PCK and 3D3S integrates a fast modeling function, which allows you to input the dimensional parameters of the structure and model it quickly.

Complex building, its internal spatial relationship is also more complex, the traditional software has been unable to meet the requirements of complex architectural design, the need to complete the modeling with the help of spatial modeling software, professional communication needs to be directly docked in the three-dimensional model.

 

Application of new steel

1.High Strength Steel

With the progress of material science, new steel production process produces new types of steel.

Appropriate use of high-strength steel in steel structure can not only reduce the dead weight of the structure and the amount of steel, but also effectively solve a series of problems brought about by the oversize cross-section of the members.

 

2.Weather-resistant steel

In addition to strength, steel in corrosion resistance and other aspects of new developments.

Ordinary steel corrosion resistance is relatively poor, every once in a while need to be re-coated, late maintenance costs are relatively high. Add a small amount of alloying elements in the steel, so that it forms a protective layer on the metal surface, can effectively improve the corrosion resistance of steel.

Weathering steel is mostly used in shipbuilding, railroad and bridge projects, and in recent years it has been widely used in civil construction.

The use of weathering steel in coastal buildings, swimming pools and other buildings that are under strong corrosive climatic conditions for a long time can effectively prolong the service life of the steel structure, reduce the maintenance cost, and the economic benefits are obvious.

Weathering steel after rusting treatment is quite popular among architects because of its unique color. Weathering steel is also widely used in decoration, landscape and other projects. In the project of Life Visa Theme Pavilion, some of the main components are made of rusted weathering steel, and the main structure is both decorative components, which is economical and simple, green and environmental protection.

 

3.Fire-resistant steel

Ordinary steel has poor fire resistance, steel temperature exceeds 300 degrees Celsius after the rapid decline in its material strength. Under fire, the main body of the house collapses due to the yielding of steel from time to time. Fire resistance of steel structure is the key and difficult point of steel structure design.

Compared with ordinary steel, fire-resistant steel has greatly improved fire resistance, and its yield strength at 600 degrees Celsius is greater than 2/3 of the yield strength at room temperature.

The application of fire-resistant steel to buildings with high fire-resistance requirements can improve the fire-resistance limit of the building, win valuable time for fire rescue, and greatly improve structural safety.