Talk about your thoughts on the future development trend of building structure.

The buildings in the future will be higher and higher, the span will be bigger and bigger, but the required period will be shorter and shorter.

There will be more and more new structural forms.

Height direction: it is mainly used for symbolic multi-functional office buildings, and the frame can only be less than 100m. The shear wall structure and tube structure are too heavy, and the construction period is too long to realize large space, and pure concrete will be less and less. Pure steel structure, due to fire resistance (mainly affected by 9 1 1 event), is estimated to be not used much. Therefore, to sum up, the hybrid structure (the combination of steel frame and concrete tube) in super high-rise buildings will have great development, such as CCTV Building, Shanghai Center, Shanghai World Financial Center and so on. There are also high-rise structures such as TV towers, and mixed structures are also used more, such as the new Guangzhou TV tower (small waist).

Span direction: mainly used for large stadiums and bridges. I will only introduce the structural aspects. Cable-membrane structure will develop rapidly, with light weight, large space span and changeable shapes (which architects like very much). There is also a space reticulated shell structure. Many large stadiums, airports and railway station waiting rooms in China have adopted cable-membrane structures and space reticulated shells.

2, structural materials:

The steel structure is developing slowly. At present, it is mainly used in single-storey factories, super high-rise buildings and long-span structures. Because of its light material but high strength, it is favored by more people. However, in other building types, such as civil buildings and industrial buildings, such as residential buildings, concrete frames, frame-shear walls and other structural forms are still widely used at this stage. However, the annual steel production in China has begun to exceed the demand, and it is estimated that it will gradually penetrate into this series of building types. After all, steel houses are not uncommon abroad.

3, building construction technology

Now Yicheng is advocating industrialized production, that is, production, processing and construction are all assembly lines. Simply put, it is to shorten the time period of building construction. I remember that many hotels with 6 or 7 floors were built in a week at home and abroad. These are the practices of this concept. With the gradual penetration of this concept, the promotion of steel structure will be greatly accelerated. After all, it takes a long time for concrete to develop strength. When the houses and office buildings in the future are directly manufactured by factories and then directly bolted on site, even if the buildings are developed, they have been successfully practiced abroad for a long time, just like the Empire State Building.