U-shaped variable cross-section soft steel damper with quasi-linear hysteresis damping characteristic and combined device

A mild steel damper and combined device technology, which is applied to building types, building components, and shock-proof, can solve the problem of constant output of the damper, and achieve the effects of large deformation capacity, convenient processing and reduced severity.

Pending Publication Date: 2018-11-23
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on the above defects, the present invention proposes a U-shaped variable-section mild steel damper with quasi-linear hysteretic damping characteristics and a combined device, which has large deformation capacity and can solve the problem of constant output of the damper

Method used

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  • U-shaped variable cross-section soft steel damper with quasi-linear hysteresis damping characteristic and combined device
  • U-shaped variable cross-section soft steel damper with quasi-linear hysteresis damping characteristic and combined device
  • U-shaped variable cross-section soft steel damper with quasi-linear hysteresis damping characteristic and combined device

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Effect test

Embodiment 1

[0043] Such as Figure 5-8 As shown, in this embodiment, the upper connecting section 3 and the lower connecting section 5 are 100mm long, 160mm wide, and 10mm thick. For the convenience of loading, the U-shaped mild steel damper is fixed in a box-shaped opening device. The box-shaped opening device includes An upper panel 6 , a lower panel 7 , two side panels 9 , and a fixed end bottom plate 8 . The upper connecting section 3 of the U-shaped variable-section mild steel damper is bolted to the upper panel 6 of the box-shaped opening device, the outermost end surface of the upper connecting section 3 is flush with the outermost end surface of the upper panel 6 of the box-shaped opening device, and the lower connecting section 5 is connected to a Connect movable steel plates with 10 bolts. The inside of the side panels 9 on both sides of the box-shaped opening device is provided with a groove near the lower panel 7. The height of the groove is slightly larger than the thickness...

Embodiment 2

[0046] Such as Figure 9-12 As shown, in this embodiment, the device consists of two U-shaped variable-section mild steel dampers to form a combined damper. The two U-shaped variable-section mild steel dampers are divided into upper and lower rows, one for each row, and two rows of U A connecting movable steel plate 10 is arranged in the middle of the mild steel damper with variable cross-section, which is used to connect the upper and lower rows of U-shaped mild steel dampers with variable cross-section. In this embodiment, in order to achieve greater displacement, the diameter of the equal-section semicircle section 1 is increased, the lengths of the upper variable section section 2 and the lower variable section section 4 are increased, and the upper connecting section 3 and the lower connecting section 5 It is 130mm long, 270mm wide and 10mm thick. The upper variable section section 2 and the lower variable section section 4 are 270mm long, 270mm wide at the widest point,...

Embodiment 3

[0049] Such as Figure 13-16 As shown, in this embodiment, four U-shaped mild steel dampers with variable cross-section constitute a combined damper. There is a connecting movable steel plate 10 in the variable-section mild steel damper, which is used to connect the upper and lower rows of U-shaped variable-section mild steel dampers together. In the U-shaped mild steel damper with variable cross-section in this embodiment, the upper connecting section 3 and the lower connecting section 5 are 130mm long, 270mm wide, and 10mm thick. The length of the upper variable section and the lower variable section is 270mm, the width at the widest point is 270mm, the width at the narrowest point is 70mm, and the thickness is 10mm. The inner diameter of the equal-section semicircle arc segment is 50mm, the outer diameter is 70mm, the width is 70mm, and the thickness is 10mm. In this embodiment, the upper connection section, the lower connection section, the upper variable section section...

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Abstract

The invention relates to a U-shaped variable cross-section soft steel damper with a quasi-linear hysteresis damping characteristic and a combined device. The U-shaped variable cross-section soft steeldamper comprises an equal-section semicircle section, an upper variable cross-section section, an upper connecting section, a lower variable-section section and a lower connecting section. The combined device with the U-shaped variable cross-section soft steel dampers comprises one group or multiple groups of the U-shaped variable cross-section soft steel dampers, the one group or multiple groupsof the U-shaped variable cross-section soft steel dampers are fixed in a box-shaped opening device, and the box-shaped opening device comprises an upper panel, a lower panel, two side panels, a fixedend bottom plate, the U-shaped variable cross-section soft steel dampers are connected with the upper panel or the lower panel through bolts; meanwhile, the U-shaped variable cross-section soft steeldampers are also connected with a connecting moving steel plate through bolts; the connecting moving steel plate is inserted into the groove of the side panel; and the extending part of the connecting moving steel plate is connected with a loading device. The device can achieve the increase of the output of the damper along with the increase of the displacement, and has the quasi-linear hysteresis damping characteristic.

Description

technical field [0001] The invention relates to a U-shaped variable cross-section soft steel damper with quasi-linear hysteretic damping characteristics and a combined device, which are generally used in structural damping control of buildings and machinery industries, and belong to the technical field of vibration control. Background technique [0002] Structural energy dissipation and shock absorption technology is a new type of active anti-seismic and disaster prevention technology. In the structural system using energy dissipation and shock absorption technology, some non-load-bearing members of the structure are designed as special elements with large energy dissipation capacity——damping When there is a small wind and a small earthquake, the structure itself has sufficient lateral stiffness to make the structure in an elastic state, which meets the normal use requirements. During a strong earthquake and strong wind, with the increase of the lateral deformation of the st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98E04H9/02
CPCE04H9/021
Inventor 赖宗睿彭凌云彭珺洁
Owner BEIJING UNIV OF TECH
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