Fabricated self-resetting concrete frame soft steel energy dissipation composite joint

A combined node and self-resetting technology, which is applied in protective buildings/shelters, building components, and earthquake resistance, can solve problems such as poor energy consumption, and achieve the effects of improving energy consumption, reducing residual deformation, and reliable transmission

CN110258787AInactive Publication Date: 2019-09-20南京毕慕智能建筑科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-09-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a fabricated self-resetting concrete frame soft steel energy dissipation composite joint. The fabricated self-resetting concrete frame soft steel energy dissipation composite joint includes a prefabricated reinforced concrete column, a prefabricated reinforced concrete beam, soft steel dampers, a pre-stressed steel strand, embedded high-strength bolts and anchored steel bars, wherein the prefabricated reinforced concrete beam is provided with a beam end embedded steel sleeve, and a column end embedded steel plate is arranged at the butt-joint position between the prefabricated reinforced concrete column and the beam end embedded steel sleeve; the pre-stressed steel strand penetrates through a pre-stressed steel strand hole channel of the prefabricated reinforced concrete column, a pre-stressed steel strand opening of the column end embedded steel plate, a pre-stressed steel strand opening of the beam end embedded steel sleeve and the pre-stressed steel strand channel of the prefabricated reinforced concrete beam in sequence, so that the prefabricated reinforced concrete column and the prefabricated reinforced concrete beam are spliced together; and the soft steel dampers are arranged on both sides of a web plate of the section steel part of the beam end embedded steel sleeve. The fabricated self-resetting concrete frame soft steel energy dissipation composite joint enables the prefabricated concrete frame structure to have excellent seismic performance and self-resetting ability under high earthquake intensity.
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Description

technical field

[0001] The invention belongs to the field of assembled structures, and in particular relates to an assembled self-resetting concrete frame mild steel energy-dissipating composite node, which dissipates seismic energy during an earthquake and can be used continuously after an earthquake without repair or with a little repair. Background technique

[0002] my country's prefabricated structure mainly adopts the prefabricated integral type, that is, the theoretical model of "equivalent to cast-in-place". The seismic performance of the assembled monolithic structure is close to that of the cast-in-place structure, but the joints still need to be cast-in-situ, and the degree of assembly is not high. The post-tensioned prestressed prefabricated structure formed by splicing prefabricated components through prestressed steel strands not only facilitates construction, but also can withstand the bending moment at the beam end during the use stage. The residual deformat...

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Embodiment Construction

[0028] The following is based on Figure 1 to Figure 6 The specific embodiment of the present invention is further described:

[0029] This embodiment discloses an assembled self-resetting concrete frame mild steel energy-dissipating combined node. The idea of ​​the invention is to pre-embed the steel sleeve with the section steel at the two ends of the prefabricated reinforced concrete beam on the basis of the prestressed assembled node (i.e. Pre-buried profiled steel sleeves 5) at the beam end, and set mild steel dampers 4 on both sides of the web of the profiled steel part, an assembled self-resetting frame composite node that dissipates seismic energy through the low yield and hysteresis characteristics of mild steel.

[0030] see Figure 1 to Figure 6 , the prefabricated self-resetting concrete frame mild steel energy-dissipating combined node of this embodiment specifically includes prefabricated reinforced concrete columns 1, prefabricated reinforced concrete beams 2, ...