Energy consumption sleeve of prestress assembling node and mounting and working method thereof

Abstract

The invention discloses an energy consumption sleeve of prestress assembling nodes and a mounting and working method thereof. The energy consumption sleeve comprises a plurality of split sleeve units,wherein the plurality of the split sleeve units are spliced to form a sleeve for wrapping prestress assembling nodes through high-strength bolts; each split sleeve unit comprises a split column sleeve unit and a beam end sleeve; the split column sleeve units and the beam end sleeves are connected through arc-shaped adhesive elastic dampers at angle parts; the arc-shaped adhesive elastic dampers comprise a plurality of arc-shaped steel plates; and the plurality of the arc-shaped steel plates are overlapped in sequence alternatively through an adhesive elastic material layer. According to the energy consumption sleeve of the prestress assembling nodes, an adhesive elastic material with good energy consumption performance is combined with a node sleeve, so that the energy consumption performance of assembling nodes is greatly improved, meanwhile beam end concrete is saved, the strength and the deformation performance of the nodes are improved, and thus the prestress assembling nodes arerelatively wide in application range.

Description

technical field [0001] The invention relates to an energy-dissipating sleeve that can be used for an assembled node, in particular to a node sleeve that can improve the energy-dissipating capacity of a prestressed assembled node and the concrete strength of the node. Background technique [0002] The prestressed prefabricated structure is a new type of building structure. The factory prefabricated beams, columns and other components are transported to the construction site and hoisted in place, and the prestressed tendons are inserted into the reserved channels of the beams and columns and stretched. The components are spliced ​​into a whole frame by prestressing. Post-tensioned prestressed tendons can be used as a means of splicing structural members, and can also bear the bending moment at the beam end during the use stage. The prestressed prefabricated structure has the advantages of small residual deformation, easy replacement after an earthquake, good performance, fast...

AI Technical Summary

Problems solved by technology

Mixed reinforcement is to arrange ordinary steel bars on the upper and lower parts of the beam. The construction is complicated, the energy dissipation capacity is poor, and it is not conducive to the repair after the earthquake; while the damper is installed at the node, the installation of the damper needs to destroy the beam column at the node Cross-section, does not conform to the design concept of "strong joints and weak members", and the installation is complicated

At the same time, for the prestressed beam-column joints, cracks will occur at the beam ends due to excessive compressive stress, which further weakens the strength and deformation capacity of the joints

In general, there is currently no joint form with good energy dissipation performance, improved joint strength, simple structure, and convenient installation that can solve the problems existing in prestressed assembled joints.

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