Friction-energy-dissipating beam-column joints in prefabricated structures

A technology of beam-column joints and prefabricated structures, which is applied in the direction of building types, building components, building structures, etc., can solve the problems of limited application, and achieve the effects of good economy, reduced structural damage, and high reliability

Active Publication Date: 2022-07-15
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, passive control technology has been widely used in traditional cast-in-place concrete structures and steel structures, but its application in prefabricated structures is still very limited

Method used

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  • Friction-energy-dissipating beam-column joints in prefabricated structures
  • Friction-energy-dissipating beam-column joints in prefabricated structures

Examples

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Embodiment Construction

[0029] like Figure 1-Figure 2 As shown, a prefabricated structure friction-energy-dissipating beam-column joint includes additional friction-energy-dissipating devices located in the area of ​​hinged beam-column joints, and the additional friction-energy-dissipating devices include a slotted transmission rod I1, a slotted transmission rod II2, The transmission rod I3, the transmission rod II4 and the embedded steel plate I5 at the hinged beam-column node, the two sides of the embedded steel plate I5 are respectively hinged with one end of the slotted transmission rod I1 and the slotted transmission rod II2, The other ends of the slotted transmission rod I1 and the slotted transmission rod II2 are hinged with one end of the transmission rod I3, and one end of the transmission rod I3 is located at the slotted transmission rod I1 and the slotted transmission rod. Between II2, the other end of the transmission rod I3 is located between the two embedded steel plates II6, and is hi...

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Abstract

The invention discloses a prefabricated structure friction-energy-consuming beam-column joint, comprising additional friction-energy-dissipating devices located in the region of hinged beam-column joints. The additional friction-energy-dissipating devices include slotted transmission rod I, slotted transmission rod II, Rod I, transmission rod II, and the embedded steel plate I at the hinged beam-column node, the two sides of the embedded steel plate I are hinged with one end of the slotted transmission rod I and the The other end of the groove transmission rod II is hinged with one end of the transmission rod I, the other end of the transmission rod I is hinged with the column through two embedded steel plates II, and one end of the transmission rod II is hinged with the beam through two embedded steel plates III. The invention has energy dissipation capacity under the action of large earthquake, and the additional friction energy dissipation device dissipates energy through sliding friction and rotational friction to dissipate seismic energy and reduce structural damage; during normal use, the additional friction energy dissipation device provides stiffness for the joints, Internal force transfer is achieved so that the articulated joints exhibit similar performance to rigid joints.

Description

technical field [0001] The invention relates to the technical field of anti-seismic and shock-absorbing control of building structures, in particular to a friction-energy-consuming beam-column joint for prefabricated structures. Background technique [0002] Prefabricated concrete structures have been widely used at home and abroad in recent years due to their advantages such as fast construction speed, high component quality, and environmental protection. But under the action of earthquake, compared with the traditional cast-in-place concrete structure, the component connection nodes of the precast concrete structure are its weak link. The joints of prefabricated structures have poor ductility and low energy dissipation capacity, and are often the first to fail under the action of large earthquakes, resulting in structural collapse. These shortcomings limit the use and development of precast concrete structures in seismic areas. [0003] The nodes of the prefabricated str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/20E04B1/58E04B1/98E04H9/02
CPCE04B1/20E04B1/58E04H9/021
Inventor 何政杜彬
Owner DALIAN UNIV OF TECH
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