Common structure and characteristics of high-rise buildings
Foshan steel high-rise building structural systems are: structure structure structure - wall structure, shear wall structure,, frame supported shear wall structure, cylinder structure.
Structure structure structure by stringers, consisting of beams and columns, beams and columns of this structure are connected in a rigid structure in the framework. Advantage of the structure of the structure: high strength, light weight, integrity and resistance to shock, column grid layout flexibility, easy access to a larger space; simple construction, more economical; structural weaknesses structure: small lateral stiffness, lateral large; uneven settlement for bearing more sensitive and so on. According to analysis, the structure of the house when the altitude increases, the lateral force grew rapidly, when the height of the building must be reached, the lateral displacement of the large horizontal load internal forces generated far exceeds the internal forces generated by vertical loads. Usually applied to 10 or less, and the 10-story structure houses mercy.
Structure - wall structure, also known as the frame structure, the structure - shear wall structure of the system is defined by the structure and the shear vertical load-bearing structure together as much (high) layer house structure systems. It is the proper place in the structure of longitudinal and transverse directions, set a few reinforced concrete wall (shear) between the column and the column. In this structure, the structure and shear force collaboration, shear walls bear most of the horizontal load, the structure of the main places bear vertical loads, which can be reduced cross-section of the column. Shear walls in the building must limit the extent layout flexibility. Structure - shear wall structure system will give full play to the structure and shear their own characteristics, access to both flexible space large space, but also has a strong lateral stiffness. So this structure in contrast to common house design. Such systems are often used in office buildings, hotels, homes and some craft space. Structure of a wall structure, typically used 25 layers below the house structure.
Wall structure, is a structure consisting of vertical, horizontal reinforced concrete wall composed, namely the structure of the system structure selected shear walls. In addition to the wall to resist horizontal loads and vertical loads, but also on the role of the house from the envelope and segmentation. The advantage is overall good shear wall structure, lateral stiffness, suitable to do high-rise buildings, horizontal lateral force is small, and the absence of beams, columns and other exposed components, can not affect the use of the house function. The disadvantage is that due to the constraints shear position, making comparison of architectural interior space division is small, does not provide a large space for a house, poor ductility. Therefore more suitable for hotels and residences. Full shear wall structure commonly used in the 25 to 30-layer structure.
Tube structure, with reinforced concrete walled into the lateral stiffness of the cylinder in the form of a large structure. Cylinder under lateral wind loads of action, which is similar to the mechanical characteristics on the basis of a fixed cylindrical cantilever member. The windward side of the tension, while the leeward side will be under pressure. Drum structure can be divided into single cylinder, tube-in-tube system, truss tube system, a bundle tube systems. Cylinder able to shear, and can choose dense column structure; also be based on the actual need to use a different number of cartridges. Tube structure used for senior or super high-rise public buildings. Drum structure is used for more than 30 layers of super high-rise house structure, economic height of not more than 80 layers limit.
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