A beam-to-column joint connection device of a cover plate weakened assembled corrugated web

Abstract

The invention relates to a cover plate weakening type assembly type wave web beam-column joint connection device and belongs to the field of structural engineering. The assembly type wave web beam-column joint connection device is composed of a round steel pipe column with a cantilever beam section, a wave web I-shaped beam section and a connecting device between the round steel pipe column with the cantilever beam section and the wave web I-shaped 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 wave web I-shaped beam section are assembled only through high-strength bolts and connecting plates on site; the fastening work of the bolts is convenient and fast; and the construction speed and construction quality are greatly improved. Meanwhile, the wave web I-shaped beam section can be built on the lower connecting plate of the round steel pipe column with the cantilever beam section, so that the construction difficulty is lowered, and on-site assembly and positioning are easy. A joint of the joint connection device is a beam-end reinforcement and dog-bone weakening combined joint; through reasonable design, double energy dissipation of bolt friction slippage and connecting plate and bolt plastic deformation can be achieved; and the joint ductility is good, and the energy-dissipating capacity and bearing capacity are high.

Description

Technical field [0001] The patent relates to a weakened cover plate assembly type wave web beam-column node 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 achieved world-renowned achievements. However, urban construction is still an extensive construction method based on concrete and on-site masonry, which has caused serious environmental pollution, serious material waste, 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 the comprehensive promotion of resource conservation and recycling, the improvement of the recycling system of renewable resources, the promotion of the utilization of construction waste, and the vigorous promotion of green buildings to make buildings gree...

AI Technical Summary

Problems solved by technology

[0004] At present, the plastic hinges that are commonly used in beam-to-column connections with prefabricated corrugated webs are relatively close to the column surface when failure occurs, 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 plate, which cannot be realized. Quick assembly, long construction time, 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

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