End plate fabricated corrugated web engaging beam-column joint connecting device capable of achieving function recovery

Abstract

The invention relates to a recoverable end plate assembled corrugated web occlusal beam-column joint connection device, which belongs to the field of structural engineering. The node connection device is composed of square steel pipe column, corrugated web channel steel beam section and connection device. The welding parts of the node connection device of the present invention are all completed in the factory and assembled on site, so that the construction speed and construction quality are greatly improved. The corrugated web occlusal beam can be assembled with the floor in the factory to form a modular assembly unit, and then at the construction site, each assembly unit can be assembled and connected to the square steel pipe column with cantilever beam section through the corrugated web occlusal beam, which can fully utilize the corrugated web member to save energy. Advantages of high performance materials. The joint of the present invention is a combination of beam end reinforcement and cover plate connection weakening, which can realize the triple energy consumption of bolt friction slip and cover plate, connection plate, and bolt plastic deformation, and transfer the plastic hinge to the cover plate and connection plate. After the earthquake, it is only necessary to replace the connecting plate and the L-shaped piece to realize the functional restoration of the structure.

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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