End plate assembly type corrugated web grip beam-column joint connection device with recoverable function

Abstract

The invention relates to an end plate assembly type corrugated web grip beam-column joint connection device with a recoverable function, and belongs to the field of structure engineering. The joint connection device is composed of square steel pipe columns, corrugated web channel steel beam sections and a connection device body. The welding parts of the joint connection device are finished in a factory and assembled on site, and the construction speed and the construction quality are greatly improved. A corrugated web grip beam and a floor can be assembled into a modular assembly unit in a factory, assembly units are assembled and connected through the corrugated web grip beam and the square steel pipe columns with cantilever beam sections on a construction site, and the advantages of material saving and high performance of corrugated web components can be fully played. The joint is a beam end reinforcing and cover board connection weakening combined type joint, bolt friction slippage and the triple energy dissipation of plastic deformation of a cover board, a connection board and bolts can be achieved, plastic hinges are transferred onto the cover board and the connection board, and only the connection board and an L-shaped part need to be replaced to achieve the function recovering of the structure after an earthquake.

Description

technical field [0001] The patent relates to a recoverable end plate assembled corrugated web occlusal beam-column joint connection device, which belongs to the technical field of structural engineering. Background technique [0002] Since the reform and opening up, my country's urban development has made remarkable achievements. However, urban construction still belongs to the extensive construction method based on concrete and on-site masonry, which has caused serious environmental pollution, serious waste of materials, high construction costs, and low product quality. In April 2015, the "Opinions of the Central Committee of the Communist Party of China and the State Council on Accelerating the Construction of Ecological Civilization" required comprehensive promotion of resource conservation, recycling and efficient use, improvement of the recycling system of renewable resources, promotion of resource utilization of construction waste, and vigorous promotion of green build...

AI Technical Summary

Problems solved by technology

[0004] At present, the common beam-to-column joints with end-plate assembled wave webs are damaged when the plastic hinge is close to the column surface, which is likely to cause shear buckling of the column web in the node domain, local buckling of the column flange, and yielding of the beam end, resulting in Serious damage to the end plate cannot be replaced, nor can it be quickly assembled. The construction takes a long time and is not suitable for prefabricated buildings.

At the same time, the existing joints need to be strengthened by adding cover plates, stiffeners or side plates to achieve the purpose of moving the plastic hinges at the beam end. This not only puts forward higher requirements for the joint processing technology, but also causes many Complex Stress Field Problems Produced by Superposition of Weld Seams

Moreover, the plastic deformation caused by the earthquake occurs on the main body of the beam member, which is not conducive to the rapid repair after the earthquake.

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