An assembled end plate connection node connection device with recoverable function

Abstract

The invention relates to a function-restorable assembly type end plate connection joint connection device and belongs to the field of structural engineering. The function-restorable assembly type end plate connection joint connection device is composed of a round steel pipe column with a cantilever beam section, a common beam section and a connecting device between the round steel pipe column with the cantilever beam section and the common beam section. Welded parts of the joint connection device are finished in a factory; weld seam accuracy and quality of the welded parts are easier to control; the round steel pipe column with the cantilever beam section and the common beam section are assembled only through high-strength bolts, connecting plates and Pi-shaped connecting members on site; and accordingly, the construction speed and construction quality are greatly improved. Meanwhile, the common beam section can be built on the lower connecting plate of the round steel pipe column with the cantilever beam section, so that the hoisting difficulty is lowered, and on-site assembly and positioning are easy. A joint of the joint connection device is a beam-end reinforcement and cover plate connecting weakening combined joint; through reasonable design, double energy dissipation of bolt friction slippage and connecting plate and bolt plastic deformation can be achieved, and fast restoring after an earthquake can be also achieved; and the joint ductility is good, and the energy-dissipating capacity and bearing capacity are high.

Description

technical field [0001] This patent relates to an assembled end plate connection node connection device with recoverable functions, which belongs to the technical field of structural engineering. Background technique [0002] Since the reform and opening up, my country has achieved world-renowned achievements in the field of urban construction. At the same time, the traditional extensive construction mode with high energy consumption, high pollution, and low efficiency is still relatively common. Change the production mode of the existing construction industry and develop green buildings. It is an important strategy to lead the new normal of economic development and achieve sustainable development. The prefabricated steel structure building is a green building in the whole life cycle, which has the characteristics of standardized design, factory production, assembly construction, integrated decoration, and information management. Vigorously promoting prefabricated steel struc...

AI Technical Summary

Problems solved by technology

[0004] At present, when the beam-column joints of the prefabricated steel structure are damaged, the plastic hinge is relatively close to the column surface, which may easily cause shear buckling of the column web in the joint domain, local buckling of the column flange, and yielding of the beam end plate, or prone to tearing of the beam end. , it is necessary to add cover plates, stiffeners or side plates to achieve the purpose of plastic hinge movement at the beam end, which not only puts forward higher requirements on the joint processing technology, but also causes complex stresses in multiple welds Field problems, and it is not conducive to the rapid recovery after the earthquake

At the same time, the connection method of the double-flange cover plate increases the difficulty of construction, puts forward higher requirements for high-altitude operations, and is not easy to assemble quickly

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