CN211009695U

CN211009695U - Displacement-speed composite damper with safety device

Info

Publication number: CN211009695U
Application number: CN201921002640.0U
Authority: CN
Inventors: 王宇航; 陈健陵; 邓然; 王远祥; 陆国兵; 王文玲
Original assignee: Chongqing University
Current assignee: Chongqing University
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-07-14
Anticipated expiration: 2029-06-28

Abstract

The utility model discloses a take safeties's compound attenuator of displacement-speed relates to engineering component technical field. The system comprises a metal damper, a viscous damper, a safety device, a steel bracket, a universal hinge, a rigid beam, a limiting column and the like. The metal damper, the viscous damper and the safety device are connected with the steel bracket and the limiting column through universal hinges, and the steel bracket is connected with the rigid beam through bolts. The system combines the advantages of a displacement damper and a velocity damper, is used in a boiler steel structure of a thermal power station as a guide device, can provide additional damping ratio and rigidity for the structure, can effectively consume seismic energy, reduces seismic shear force and displacement, is combined with a safety device, and realizes a limiting function under the action of wind load and when the boiler is heated to expand. The problem of current boiler steel construction guider can only realize spacing, unable power consumption, lead to the earthquake reaction great is solved, wide engineering application prospect has.

Description

Displacement-speed composite damper with safety device

Technical Field

The utility model relates to an engineering component technical field.

Background

Compared with other power generation modes, the thermal power has the advantages of rich raw material resources, low economic cost, good peak regulation performance and the like, and under the trend that the national electricity demand is increasingly increased, the thermal power still has a very important position in the foreseeable future.

In a boiler steel structure of a thermal power station, a certain number of guide devices are generally needed to be arranged, one ends of the guide devices are connected with rigid beams arranged around the boiler, and the other ends of the guide devices are connected with limiting columns. When the boiler expands, wind load and meets with the earthquake, play the effect of restriction boiler and steel construction relative displacement, prevent that boiler and steel construction from producing the collision and damaging. The traditional guide device has higher rigidity and only has a single limiting function, and the horizontal force transmitted to a steel structure is higher when the earthquake acts, so that the designed structural member has more material consumption and low economy. Therefore, there is a need to combine the advantages of the damper and improve the form of the guiding device, so that the guiding device has the functions of limiting and absorbing energy.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a take safeties's compound attenuator of displacement-speed: the system comprises a metal damper, a viscous damper, a safety device, a steel bracket, a universal hinge, a rigid beam, a limiting column and the like. The system combines the advantages of a displacement damper and a velocity damper, is used in a boiler steel structure of a thermal power station as a guide device, can provide additional damping ratio and rigidity for the structure, can effectively consume seismic energy, reduces seismic shear force and displacement, is combined with a safety device, and realizes a limiting function under the action of wind load and when the boiler is heated to expand. The problem of current boiler steel construction guider can only realize spacing, unable power consumption, lead to the earthquake reaction great is solved, wide engineering application prospect has.

The technical scheme of the utility model as follows:

a displacement-velocity composite damper with a safety device comprises a metal damper, a viscous damper, the safety device, a steel bracket, a universal hinge, a rigid beam, a limiting column, a constraint end plate, a constraint middle plate, an energy dissipation plate, a flat steel rod, a pin shaft and a bolt.

The metal damper, the viscous damper and the safety device are arranged between the steel bracket and the limiting column; the safety device is arranged in the center, the metal dampers and the viscous dampers are symmetrically arranged by taking the safety device as the center, and two layers are vertically arranged; the steel bracket is connected with the rigid beam through a bolt.

The metal damper consists of two constraint end plates, a constraint middle plate and a plurality of energy dissipation plates welded between the plates; the restraint end plate and the restraint middle plate are made of common steel, and the energy consumption plate is made of low-yield steel; one end of the restraint end plate is connected with the steel bracket through a universal hinge, and one end of the restraint middle plate is connected with the limiting column through a universal hinge.

And two ends of the viscous damper are connected with the steel bracket and the limiting column by adopting universal hinges.

The safety device consists of three flat steel rods and a pin shaft; one end of the flat steel rod is connected with the steel bracket or the limiting column by adopting a universal hinge, and the other ends of the flat steel rod are connected with each other by a pin shaft.

The utility model discloses following beneficial effect has for prior art:

(1) the advantages of the speed type damper and the displacement type damper are combined, the additional damping ratio and the rigidity of the structure can be increased at the same time, and the seismic energy can be effectively consumed under small earthquake and large earthquake;

(2) under the action of thermal expansion and wind load of the boiler, the limit function of the expansion and load action directions is realized through a safety device and a universal hinge, and the deformation of the other horizontal orthogonal direction and the vertical direction is not limited;

(3) when the earthquake acts, the pin shaft of the safety device is cut off, rigidity is provided for the structure through the metal damper, the structure does not generate large displacement, the limiting function under the earthquake is realized, and meanwhile, the viscous damper is utilized to consume the earthquake energy, so that the earthquake shearing force and the displacement are further reduced;

(4) the composite damper can be prefabricated together with the steel corbel and is integrally assembled on the rigid beam through the bolt, so that the composite damper is simple to install and convenient to replace.

Drawings

Fig. 1 is an overall schematic view (floor plan) of the present invention;

FIG. 2 is a schematic view of the vertical arrangement of the components of the present invention;

FIG. 3 is a schematic cross-sectional view of the metal damper of the present invention;

FIG. 4 is a structural diagram of the safety device of the present invention;

in the figure: the damping device comprises a metal damper 1, a viscous damper 2, a safety device 3, a steel bracket 4, a universal hinge 5, a rigid beam 6, a limiting column 7, a restraining end plate 8, a restraining middle plate 9, an energy dissipation plate 10, a flat steel rod 11, a pin shaft 12 and a bolt 13.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1, a displacement-velocity composite damper with a safety device structurally comprises a metal damper (1), a viscous damper (2), a safety device (3), a steel bracket (4), a universal hinge (5), a rigid beam (6), a limiting column (7) and a bolt (13); the metal damper (1), the viscous damper (2) and the safety device (3) are arranged between the steel bracket (4) and the limiting column (7), and the two ends of the metal damper are connected by a universal hinge (5); the steel bracket (4) is connected with the rigid beam (6) through a bolt (13).

As shown in fig. 2, the arrangement of the composite damper system is as follows: the safety device (3) is arranged in the center, the metal damper (1) and the viscous damper (2) are symmetrically arranged by taking the safety device (3) as the center, and the two layers are vertically arranged.

As shown in fig. 3, the metal damper (1) is composed of two constraint end plates (8), a constraint middle plate (9) and a plurality of energy dissipation plates (10) welded between the plates; the restraint end plate (8) and the restraint middle plate (9) are made of common steel, and the energy consumption plate (10) is made of low-yield steel; one end of the restraint end plate (8) is connected with the steel bracket (4) by a universal hinge (5), and one end of the restraint middle plate (9) is connected with the limiting column (7) by the universal hinge (5).

As shown in fig. 4, the safety device (3) is composed of three flat steel rods (11) and a pin shaft (12); one end of the flat steel rod (11) is connected with the steel bracket (4) or the limiting column (7) by a universal hinge (5), and the other ends are connected with each other by a pin shaft (12).

The utility model provides a take safeties's compound attenuator of displacement-speed. The system is used as a guide device in a boiler steel structure of a thermal power station, can effectively consume seismic energy, reduces seismic shear force and displacement, and simultaneously realizes a limiting function. The problem of current boiler steel construction guider can only realize spacing, unable power consumption, lead to the earthquake reaction great is solved, wide engineering application prospect has.

The foregoing is merely a preferred embodiment of the present invention, but the present invention is not limited to the specific embodiment described above. Those skilled in the art should appreciate that they may readily use the present disclosure as a basis for modifying or supplementing other structures, elements, or steps without departing from the principles of the present disclosure.

Although used more herein: 1-metal damper, 2-viscous damper, 3-safety device, 4-steel bracket, 5-universal hinge, 6-rigid beam, 7-spacing column, 8-constraint end plate, 9-constraint middle plate, 10-energy dissipation plate, 11-flat steel rod, 12-pin shaft, 13-bolt and other terms, but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is contrary to the spirit of the present invention.

Claims

1. A displacement-velocity composite damper with a safety device is characterized in that: the component elements comprise a metal damper (1), a viscous damper (2), a safety device (3), a steel bracket (4), a universal hinge (5), a rigid beam (6), a limiting column (7), a constraint end plate (8), a constraint middle plate (9), an energy consumption plate (10), a flat steel rod (11), a pin shaft (12) and a bolt (13).

2. The composite displacement-velocity damper with a safety device according to claim 1, wherein: the metal damper (1), the viscous damper (2) and the safety device (3) are arranged between the steel bracket (4) and the limiting column (7); the safety device (3) is arranged in the center, the metal damper (1) and the viscous damper (2) are symmetrically arranged by taking the safety device (3) as the center, and two layers are vertically arranged; the steel bracket (4) is connected with the rigid beam (6) through a bolt (13).

3. The composite displacement-velocity damper with a safety device according to claim 1, wherein: the metal damper (1) is composed of two constraint end plates (8), a constraint middle plate (9) and a plurality of energy dissipation plates (10) welded between the two constraint end plates; the restraint end plate (8) and the restraint middle plate (9) are made of common steel, and the energy consumption plate (10) is made of low-yield steel; one end of the restraint end plate (8) is connected with the steel bracket (4) by a universal hinge (5), and one end of the restraint middle plate (9) is connected with the limiting column (7) by the universal hinge (5).

4. The composite displacement-velocity damper with a safety device according to claim 1, wherein: two ends of the viscous damper (2) are connected with the steel bracket (4) and the limiting column (7) by adopting universal hinges (5).

5. The composite displacement-velocity damper with a safety device according to claim 1, wherein: the safety device (3) is composed of three flat steel rods (11) and a pin shaft (12); one end of the flat steel rod (11) is connected with the steel bracket (4) or the limiting column (7) by a universal hinge (5), and the other ends are connected with each other by a pin shaft (12).