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Metal damper with rolling shafts

A technology of metal dampers and rollers, which is applied to bridge parts, building components, bridges, etc., can solve the problems of small rigidity and large deformation, and achieve the effect of small rigidity, strong deformation ability and strong applicability

Active Publication Date: 2014-09-24
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of existing metal energy dissipation dampers and provide a roller metal damper with good energy dissipation performance, large deformation and low stiffness after yielding

Method used

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  • Metal damper with rolling shafts
  • Metal damper with rolling shafts
  • Metal damper with rolling shafts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 1 , figure 2 The roller metal damper of the present invention shown includes a metal plate 1 and a roller 2, as well as a roller support 3 and a metal plate support 4.

[0041] Both ends of the metal plate 1 are fixedly connected to the building structure through the bolt through holes 6 on the metal plate support 4, and the length direction of the metal plate 1 is consistent with the direction in which the building structure bears the shearing force. The roller 2 is made of steel with a smooth surface, and is placed in a cylindrical groove in the roller support 3. The roller support 3 is divided into two upper and lower parts (3(1) and 3(2)), and the roller 2 and the metal plate 1 between the roller 2 and the metal plate 1 are pressed by the action of the bolt 5. The rollers 2 are arranged at equal intervals along the length direction of the metal plate 1 on the upper and lower sides of the metal plate 1, and the vertical positions of the rollers 2 on the ...

Embodiment 2

[0046] Such as Figure 5 , Image 6 As shown, when the horizontal shear force received by the building structure is large, multiple metal plates 1 can be arranged in parallel in a single damper, and the length direction of the metal plates 1 is consistent with the horizontal anti-lateral force direction. Correspondingly, the roller 2 is also arranged in multiple layers. In addition to the top roller support 3(1) and the bottom roller support 3(2), the roller support 3 is provided with several middle layers 3(3), and the top roller The support 3(1), the bottom roller support 3(2) and the middle layer 3(3) are fastened by bolts 5. By controlling the tightness of the bolt 5, different degrees of pressure between the rollers 2 and the metal plate 1 are realized, that is, different degrees of damping values ​​of the damper are realized.

[0047] When the building structure requires horizontal shock absorption and energy consumption in both directions, the length directions of the meta...

Embodiment 3

[0050] Based on the technical principles described in the first and second embodiments, the roller metal damper of the present invention has a compact and concise structure, and its design features can ensure its large deformation, so the overall size of the present invention can be controlled to be small.

[0051] Such as Picture 10 As shown, the difference from the first and second embodiments is that when the structure space of the present invention is large, an auxiliary bracket 7 can be added to the steel frame 8 to connect the upper part of the roller support 3 to The metal plate support 4 is connected with the auxiliary bracket 7 to fix the present invention on the steel frame 8. Of course, the present invention can also be turned upside down so that the metal plate support 4 is connected to the steel frame 8, and the roller support 3 is connected to the auxiliary support 7. The specific installation method depends on the engineering situation and the convenience of constr...

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Abstract

The invention belongs to the technical field of damping of civil engineering structures, and in particular relates to a metal damper with rolling shafts. The metal damper with the rolling shafts comprises metal plate supports and a rolling shaft support which are fixed on a building structure or a bridge structure, wherein one or more metal plates pass through the rolling shaft support; the two ends of each metal plate is fixedly connected with the metal plate support; the length direction of each metal plate is consistent with the main direction for bearing shear force of the building structure; a plurality of grooves are formed in the upper surface and the lower surface, adjacent to the metal plates, in the rolling shaft support; and each rolling shaft is arranged in each groove and is connected with the upper surface and the lower surface of each metal plate in a rolling or sliding mode. The metal damper realizes energy consumption by virtue of excellent plastic deformation ability and friction damping of materials such as steel, has a full hysteretic curve, an excellent energy consumption ability and a novel and reasonable structure, is easy to process, convenient and flexible to use and high in applicability, can effectively improve the seismic performance of the building structure and the bridge structure, and has wide market promotion and application prospect.

Description

Technical field [0001] The invention belongs to the technical field of civil engineering structure shock absorption, and specifically relates to a roller metal damper installed on a building structure or a bridge project and used for consuming seismic energy. Background technique [0002] The development of today's buildings tends to be more and more tall, and frame structures composed of steel components, composite components or reinforced concrete components are often used in buildings. In order to make the building structure have a strong ability to resist damage from external forces such as earthquake or wind load, it is often necessary to add energy-consuming components to the frame structure. At the same time, the development of bridge engineering is becoming more and more large-scale. In order to ensure the safety of the bridge structure during earthquakes and prevent bridge fall, it is now common to install rubber vibration isolation pads at the junction of the bridge pie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/98E01D19/00
Inventor 潘鹏林劲松陈浩文
Owner TSINGHUA UNIV
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