A beam-to-column joint of a bolt-reinforced bolt-assembled concrete frame

Abstract

The invention discloses a concrete frame beam-column node assembled with bolts, steel bars, and bolts, which belongs to the field of construction engineering and includes: prefabricated concrete columns, prefabricated beams, prefabricated nodes, connecting steel bars, nuts, end nuts, and bolt plates; the prefabricated concrete columns There are protruding steps on the four sides of the top and bottom, and a bolt plate groove is reserved at the rear of the protruding step; the bolt plate is inserted into the bolt plate groove; the prefabricated beam and the prefabricated node are integrally prefabricated; the prefabricated concrete The column is close to the upper and lower surfaces of the prefabricated node; the connecting steel bar passes through the reserved steel bar channel, and the bottom is close to the lower bolt plate; the nut is screwed on the connecting steel bar and is close to the protruding step; The end nut is screwed on the upper end of the connecting steel bar, and is close to the latch plate on the top. The invention reduces the difficulty of on-site operation, ensures the quality of nodes, is simple and quick to install on-site, has high efficiency, and has good anti-seismic performance at the same time.

Description

technical field [0001] The invention relates to a beam-column joint of a concrete frame assembled with bolts, steel bars and bolts, belonging to the field of construction engineering. Background technique [0002] The elements in a precast concrete structure are produced in a factory, and the prefabricated elements are transported to construction for assembly. This construction method can greatly improve the level of mechanized construction, reduce construction personnel, save construction time, speed up construction progress, and reduce construction costs. The development of prefabricated concrete structure is an effective way to realize the industrialization of construction, which can effectively save resources, reduce environmental pollution, and is conducive to improving the modernization level of the national construction industry, and has broad development prospects. [0003] The key to the performance of precast concrete frame structures lies in the connection of bea...

AI Technical Summary

Problems solved by technology

Post-casting "wet" joints often leave protruding steel bars at the end of precast beams, which seriously affects the efficiency of precast beams and columns hoisting; bolted joints are inconvenient to operate on site, and conventional bolts can only be tensioned, and generally Auxiliary section steel nodes need to be pre-embedded, which affects connection efficiency and performance; welding connection nodes are located in a narrow field, and manual operation is inconvenient, welding quality is difficult to guarantee, and efficiency is low

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