Tuned mass damper based on anti-buckling restraint support

A technology of tuning mass damping and restraint support, applied in the seismic field of building steel structures, can solve the problems of affecting the damping coefficient, poor shock absorption effect, oil leakage of viscous dampers, etc., to accelerate energy consumption and improve shock absorption energy consumption Efficiency, the effect of increasing internal force

Inactive Publication Date: 2019-05-14
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional TMD dampers mostly use viscous dampers. The output of viscous dampers is directly related to the piston hole. Long-term use will expand the piston hole and affect the damping coefficient. Moreover, viscous dampers often leak oil during use, so viscous The damper is not the best way to provide damping for TMD; and the traditional TMD shock absorption effect is not good in strong earthquakes

Method used

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  • Tuned mass damper based on anti-buckling restraint support
  • Tuned mass damper based on anti-buckling restraint support
  • Tuned mass damper based on anti-buckling restraint support

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Embodiment 1

[0022] Embodiment 1: as Figure 1~4 As shown, it is the tuned mass damper based on the anti-buckling restraint support of the present invention. The device mainly includes an inner ring mass block 1, an outer ring mass block 2, a rubber friction layer 3, a pin shaft 4, an anti-buckling restraint support 5, and a cross-shaped mass damper. Connecting rod 6, angle steel connecting plate 7, high-strength bolt 8, energy-dissipating beam section 9, ear plate 10; wherein: the inner ring mass block 1 and the outer ring mass block 2 are connected as a whole through tenon and groove, and the inner ring mass block 1 is glued on the outside There is a rubber friction layer 3, the inner ring quality block 1 is connected with the cross-shaped connecting rod 6 through the pin shaft 4, the upper side of the cross-shaped connecting rod 6 is connected with the angle steel connecting plate 7 through the high-strength bolt 8, and the angle steel connecting plate 7 is connected with the high-streng...

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Abstract

The invention relates to a tuned mass damper (TMD) based on buckling restrained braces. The TMD mainly comprises an inner ring mass block, an outer ring mass block, a rubber friction layer, pin shafts, the buckling restrained braces, a cross-shaped connecting rod, an angle steel connecting plate, a high-strength bolt, an energy dissipation beam section and a lug plate; the inner ring mass block rotates relative to the outer ring mass block, and friction energy dissipation with the rubber friction layer is utilized; stability and the damping energy dissipation effect under a strong earthquake of the TMD are enhanced through the buckling restrained braces; the mass blocks swing during the earthquake, so that reverse restoring force is provided for a structure, and meanwhile, energy dissipation of the buckling restrained braces is accelerated; and mass of the mass bocks is transferred to the energy dissipation beam section, so that entering of plastic stage energy dissipation of the energy dissipation beam section is accelerated, the main structure is free from being damaged, and post-earthquake replacement is convenient through the design.

Description

technical field [0001] The invention belongs to the anti-seismic field of building steel structures, and in particular relates to a tuned mass damper based on anti-buckling constraint supports. Background technique [0002] A single pendulum tuned mass damper (TMD) is composed of a mass block, a pendulum rope and a damping system. By adjusting the natural frequency, it is close to the controlled frequency of the main structure. When the main structure is forced to vibrate, a corresponding The main structure moves in the opposite direction and exerts a reaction force on the main structure. The vibration energy input to the structure is gradually dissipated through the damper, thereby controlling the vibration of the structure. [0003] The anti-buckling restraint support is an axially stressed member that will not lose stability when it is under pressure. It is mainly composed of two parts: the inner core material unit and the outer restraint unit. The constraint of the core...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04H9/02E04B1/98
CPCE04H9/021
Inventor 鲁正张恒锐廖元
Owner TONGJI UNIV
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