High-ductility prestressed fabricated concrete beam-column connecting joint and construction method thereof

Abstract

The invention discloses a high-ductility prestressed fabricated concrete beam-column connecting joint and a construction method thereof. The high-ductility prestressed fabricated concrete beam-columnconnecting joint comprises a prefabricated beam, a prefabricated column, first and second post-tensioned prestressed tendons for connecting the prefabricated column with the prefabricated beam, and energy dissipation angle steel. A penetrating unbonded prestressed tendon reserved hole way is formed in the section centroid of the beam for allowing the first prestressed tendon to penetrate into; anunbonded prestressed tendon reserved hole way is formed in the position, at the top of the beam, of the end of the beam for allowing the second prestressed tendon to penetrate into; a groove is formedin the position, at the top of the beam, of the anchorage section of the beam so as to anchor the second prestressed tendon; hole ways also need to be reserved in the positions, corresponding to thebeam, of the column; and the energy dissipation angle steel is arranged on the position, connected with the column, of the lower portion of the beam and fixed through pre-embedded high-strength connection bolts. The high-ductility prestressed fabricated concrete beam-column connecting joint is easy and convenient to construct, cast-in-situ concrete is not needed, the self-resetting capability is achieved, the ductility is high, the energy dissipation capacity is good, and good continuous-collapse resistance is achieved.

Description

technical field [0001] The invention belongs to the technical field of prefabricated assembled concrete structures in civil engineering, and in particular relates to the connection structure of prefabricated assembled concrete beam-column nodes. Background technique [0002] The prefabricated building refers to a building that uses factory-made building components and assembles the components through reliable connections at the construction site. It has the advantages of fast construction speed, energy saving and environmental protection, and little impact on the construction environment. In recent years, my country has vigorously developed prefabricated buildings, which has become an important starting point for the transformation and upgrading of my country's buildings and has risen to a national strategy. [0003] At present, there are two main ways to connect the beam-column joints of the prefabricated concrete frame structure system in China, one is the traditional wet ...

AI Technical Summary

Problems solved by technology

[0007] The technical problems to be solved are: the traditional wet connection requires on-site wet work, the construction period is long, and the joint connection form is complicated, it is difficult to grout, the quality is not reliable, and there are safety hazards; the dry connection transmission beam of the corbel is added The end bending moment capacity is poor, and the integrity is not high

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