Prestressed support friction damping assembled steel structure system and design method thereof

Abstract

The invention relates to the technical field of structural engineering, and discloses a prestressed support friction damping assembled steel structure system and a design method. The system is formedby stacking layered frame structures up and down, each layered frame structure includes steel columns, steel beams and floor plates, the steel columns between the upper and lower adjacent layered frame structures are disconnected at the connection positions of the floor plates on the lower layer, connection through self friction is achieved, and meanwhile, high-strength cables are connected between the adjacent layered frame structures; and the top ends of the steel columns are provided with upper flange plates so as to be fixedly connected to the steel beams, the bottom ends of the steel columns are provided with lower flange plates, the lower flange plates are in contact with the upper surfaces of the floor plates of the adjacent layered frame structure on the lower layer, the upper surfaces of the floor plates are provided with friction coating layers and limiting devices, and the limiting devices are steel plate strips arranged along the edges of the floor plates. By means of the system, the layers are connected through the high-strength cables and the mutual friction between the columns, construction is convenient and efficient to achieve, and the stress performance is good.

Description

technical field [0001] The invention relates to the technical field of structural engineering, in particular to a prestressed support friction damping assembled steel structure system and a design method. Background technique [0002] A large number of welding operations are carried out during the construction of traditional steel structure buildings, which seriously affects the construction progress and causes environmental pollution, and the quality of on-site welding is not easy to guarantee, which affects the safety of the structure. The prefabricated steel structure system is widely used because of its high degree of industrialization, fast construction speed, low environmental pollution and easy control of construction quality. [0003] Most of the current assembled steel structure buildings are connected by bolts or welds. On-site bolted or welded connections still consume a lot of construction time, and the connection nodes are all rigid connections, which are prone ...

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Problems solved by technology

[0005] The technical problems to be solved are: the existing prefabricated steel structure frames are rigidly connected, there are many construction nodes, the efficiency is low, and the frame structure itself has poor seismic resistance

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