Suspension type giant-scale steel frame supporting structure with additional damping device

Abstract

The present invention relates to a suspended large steel frame support structure with an additional damping device, which is applicable for high buildings and composed of a main structure and a sub-structure. The main structure is adopted with a large steel frame support structure, which is characterized that the support structure is composed of a splayed tough support and a reversal splayed pre-stress cable; the sub-structure is suspended on a large beam of the main structure; a horizontal damping device is arranged between the sub-structure and the main structure. The reversal splayed pre-stress cable can offset large push generated by the splayed tough support and transmit load in the large beam span to a large column in the form of pull to reduce the shearing force, the bending moment and the deflection of the beam, therefore, compared with a large frame structure, the large steel frame support structure can improve lateral resistance; compared with a large truss structure, the large steel frame support structure relieves collective stress. A damping device provided between the main structure and the sub-structure consumes more horizontal momentum, and greatly reduces the displacement and the acceleration of suspended floors.

Description

technical field [0001] The invention relates to a high-rise building steel structure, more specifically, the invention relates to a suspended giant steel frame support structure with an additional damping device. Background technique [0002] The megastructure mainly includes two parts, the main structure and the substructure. The substructure only bears vertical loads, and the main structure not only bears the vertical loads from itself and the substructure, but also resists horizontal effects such as wind and earthquakes. Therefore, the giant structure has clear force transmission, good wind and earthquake resistance, high stability, easy to meet the requirements of building functions, and fast construction speed. It is a promising high-rise structure. [0003] At present, there are more researches and applications on mega-frame structures and mega-truss structures. The overall deformation curve of the mega-frame structure is shear type. In order to meet the lateral movem...

AI Technical Summary

Problems solved by technology

The deformation curve of the giant frame structure is shear type as a whole. In order to meet the lateral movement requirements of high-rise and super-high-rise buildings, only by increasing the cross-sectional size of the giant components to improve the lateral resistance of the structure, the technical and economic indicators are not good.

Although the giant truss structure can significantly improve the lateral stiffness of the structure, the giant diagonal members in the giant truss intensify the stress concentration near the main nodes of the giant frame, making the engineering structure more complex

Therefore, the scope of application of the aforementioned two structures is severely limited by their own shortcomings of the main structure

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