Multidirectional connection of steel beam-column joints based on dry connection

Abstract

The invention provides a multi-directional connection of steel beam-column joints based on dry connection, the core area of ​​the beam-column joints replaced by section steel is used as the connecting nodes of the beam-column joints, and the on-site splicing through bolts can effectively shorten the height of the prefabricated columns. It is convenient for transportation and quick assembly on site. The mild steel of the beam-column joint undergoes plastic yielding hysteretic deformation and dissipates seismic energy, so as to achieve the purpose of energy dissipation and shock absorption. replaceable. The beam-column joint of the invention overcomes the shortcomings of the current wet method operation on the construction site that still requires formwork, cast-in-place concrete, and maintenance, improves construction efficiency, reduces formwork supports and improves economic benefits.

Description

technical field [0001] The invention relates to the technical field of building structures, in particular to a multidirectional connection steel beam-column joint based on dry connection. Background technique [0002] With the continuous advancement of my country's urbanization, the continuous deepening of industrialization, the continuous improvement of people's education level and the intensification of population aging, my country's demographic dividend is gradually disappearing. Construction jobs with high labor intensity and poor labor environment are gradually being abandoned by people. At the same time, the traditional construction enterprises are faced with a large amount of labor, large resource consumption, low production efficiency, serious environmental pollution, water waste and other prominent problems that directly restrict the development of the traditional construction industry. In order to solve these problems, the prefabricated concrete-based building str...

AI Technical Summary

Problems solved by technology

[0004] Due to the late start of my country's prefabricated buildings, basic research is blank in many areas, which cannot provide guidance for engineering practice

Due to the characteristics of assembly, the connection mode and construction characteristics of nodes not only affect the overall mechanical performance of the structure but also affect the production efficiency

At present, my country mainly adopts wet connection, but wet connection affects the construction period and cannot fully utilize the advantages of assembly

Although the dry connection has applications, the structure is complex and difficult to install, and the energy dissipation capacity is seriously insufficient, and the current research mostly adopts the continuous pouring of several-story-high columns, and pre-embeds the connecting components or makes connecting holes in the columns. , as a means of connecting beams to realize the splicing of prefabricated beams

The column length of this dry connection method is relatively large, which is suitable for ordinary areas with convenient transportation, but it has great restrictions for some areas with harsh environments and inconvenient transportation.

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