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

A prefabricated and prestressed technology, applied in protective buildings/shelters, building components, earthquake resistance, etc., can solve problems such as unfavorable repairs, complicated construction, weakened node strength and deformation ability, etc., and achieves convenient and rapid installation and replacement , Improve the strength and deformation ability, and the effect of superior energy dissipation ability

Active Publication Date: 2018-03-20
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as Figure 1~4 As shown, the energy-dissipating sleeve of the prestressed assembled node of the present invention includes two left and right half-sleeves connected by high-strength bolts 5, and the two half-sleeves are symmetrical about the splicing plane. Each half-sleeve includes a vertical column sleeve 1 and a horizontal beam end sleeve 2. The column sleeve 1 and the beam end sleeve 2 are connected through and only through the arc-shaped viscoelastic dampers at the corners. The column sleeve 1 and the beam end sleeve 2 are only in contact with each other in the vertical contact plane, and there is no connection, which ensures that the beam-column components connected by prestressed tendons can rotate freely.

[0040] The column sleeve 1 has a hole on the vertical contact plane with the beam end sleeve 2, and the size of the hole is consistent with the inner edge of the beam end sleeve 2, which ensures that the beam-column joints can be directly contacted and t...

Embodiment 2

[0048] Such as Figure 6~8 As shown, the energy-dissipating sleeve of the prestressed assembled node in this embodiment includes four sub-sleeves connected by high-strength bolts 5, the four sub-sleeves are exactly the same, and are set on the four prefabricated beam members around the column. The end plates 8 are welded at the joints, and the high-strength bolts of the end plates 8 are combined to form an integral sleeve covering the beam-column joints. Each sub-sleeve includes a vertical column sleeve 1 and a horizontal beam end sleeve 2. The column sleeve 1 and the beam end sleeve 2 are connected through and only through the arc-shaped viscoelastic damper at the corner. The column sleeve 1 and the beam end sleeve 2 are only in contact with each other in the vertical contact plane, and there is no connection, which ensures that the beam-column components connected by prestressed tendons can rotate freely.

[0049] The column sleeve 1 has a hole on the vertical contact plane...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/21E04B1/98E04H9/02
CPCE04B1/21E04B1/215E04H9/022E04H9/025Y02A30/30
Inventor 徐赵东杨杨
Owner SOUTHEAST UNIV
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