Composite shock-absorbing damper for decentralized control of building interlayer deformation

Abstract

The utility model provides a composite shock-absorbing damper for decentralized control of building interlayer deformation, which comprises an upper connecting plate, a lower connecting plate and a middle friction energy-consuming mechanism which are fixed on a frame body, and the upper end and the lower end of the middle friction energy-consuming mechanism are respectively connected with the upper connecting plate and the lower connecting plate through dampers. Friction energy dissipation and the damper are integrated to form the composite type shock absorption damper device, the composite type shock absorption damper device has large energy dissipation capacity in the elastic deformation stage and has deformation decentralized control capacity in the non-elastic deformation stage, and the comprehensive anti-seismic performance of the whole structure is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of building structure's energy dissipation and vibration reduction, especially relates to a composite shock damper for building interlayer deformation dispersion control. BACKGROUND

[0002] Due to the vertical uneven distribution of the strength and stiffness of each floor of the building structure, and the randomness of the external load distribution, the deformation of each floor of the building structure under dynamic load is not the same. Under the action of dynamic load such as earthquake load and wind load, the weak floor with small lateral stiffness is easy to produce large interlayer deformation, causing local damage to the structure, and even leading to local floor collapse of the structure in severe cases.

[0003] In order to disperse the control of the deformation of the building structure to avoid excessive concentration of deformation in the local layer, the Chinese patent document (ZL 202322486653.2) proposes to install a rotatable intermediate column across the layers, and connect the energy dissipation damper through the intermediate column. When there is a deformation difference between adjacent layers, the damping force of the damper can play a role in uniform control of deformation. This device only plays the role of energy dissipation and shock absorption when there is a deformation difference between adjacent layers. Compared with the traditional intermediate column type damper, the energy dissipation capacity of this device is relatively weak. In seismic design, deformation dispersion control is needed during the nonlinear deformation stage of the structure, and the damper should play the role of energy dissipation as much as possible during the elastic deformation stage of the structure. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a composite shock damper for building interlayer deformation dispersion control, a deformation dispersion control device with a friction starting mechanism, and to improve the energy dissipation capacity during the elastic stage of the structure.

[0005] The technical solution adopted by the utility model to solve the above technical problem is: a composite shock damper for building interlayer deformation dispersion control, characterized by comprising an upper connecting plate, a lower connecting plate and an intermediate friction energy dissipation mechanism fixed on a frame body, the upper and lower ends of the intermediate friction energy dissipation mechanism are connected to the upper connecting plate and the lower connecting plate through dampers respectively.

[0006] According to the above scheme, the intermediate friction energy dissipation mechanism comprises a rotating friction plate and a base plate, the upper and lower ends of the base plate are respectively provided with arc-shaped holes, the base plate is fixed on the frame body, the middle part of the rotating friction plate is hinged to the frame body through a pin shaft and rotates around the pin shaft, and the upper and lower ends of the rotating friction plate are connected to the base plate through sliding bolts corresponding to the positions of the arc-shaped holes respectively.

[0007] According to the scheme, the frame body is a frame structure comprising an upper frame beam, a middle frame beam and a lower frame beam, and is connected and positioned by two side frame columns to form a day-shaped frame structure, the upper connecting plate is fixed to the upper frame beam, the rotating friction plate and the base plate are both fixed to the middle frame beam, and the lower connecting plate is fixed to the lower frame beam.

[0008] According to the scheme, a friction pad plate is arranged between the rotating friction plate and the base plate, and the friction pad plate is tightly connected with the base plate.

[0009] According to the scheme, the bottom of the upper connecting plate, the top of the lower connecting plate and the two ends of the rotating friction plate are respectively provided with an ear plate, and the damper is connected between the corresponding two ear plates.

[0010] According to the scheme, the damper is horizontally arranged.

[0011] According to the scheme, the upper connecting plate, the lower connecting plate and the rotating friction plate are all rigid plates.

[0012] According to the scheme, the frame body is an integrally formed frame structure.

[0013] The composite damping damper for building interlayer deformation dispersion control has the advantages that: the composite damping damper can realize multiple effects of friction starting, friction energy consumption, damper energy absorption and interlayer deformation coordination control, has better overall performance, is simple in structure and easy to realize, can play a role in view of different intensity seismic motion, the damper plays an energy dissipation role based on interlayer deformation under small earthquakes, the friction device and the damper play a role simultaneously under large earthquakes, and the two-stage working mode can provide stronger energy dissipation and deformation control effects. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 FIG. 1 is a structural schematic view of a composite damping damper according to an embodiment of the present application.

[0015] Figure 2 FIG. 2 is a state diagram of the composite damping damper under a small earthquake according to an embodiment of the present application.

[0016] Figure 3 FIG. 3 is a state diagram of the composite damping damper under a large earthquake according to an embodiment of the present application.

[0017] 1. upper connecting plate, 2. lower connecting plate, 3. damper, 4. rotating friction plate, 5. base plate, 6. arc-shaped hole, 7. pin shaft, 8. sliding bolt, 9. upper frame beam, 10. middle frame beam, 11. lower frame beam, 12. frame column, 13. friction pad plate. DETAILED DESCRIPTION

[0018] For better understanding of the present application, the present application will be further described below in conjunction with the drawings and examples.

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0020] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0021] It should be noted that, in the description of the present application, the orientations or positional relationships indicated by the terms "transverse", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] As Figure 1 As shown in the figure, the present application provides a composite shock damper for building interlayer deformation dispersion control, which comprises an upper connecting plate 1, a lower connecting plate 2 and an intermediate friction energy dissipation mechanism fixed on a frame body, and the upper and lower ends of the intermediate friction energy dissipation mechanism are connected with the upper connecting plate and the lower connecting plate through dampers 3 respectively.

[0024] The intermediate friction energy dissipation mechanism comprises a rotating friction plate 4 and a base plate 5, the upper and lower ends of the base plate are respectively provided with arc-shaped holes 6, the base plate is fixed on the frame body, the middle part of the rotating friction plate is hingedly connected with the frame body through a pin shaft 7 and rotates around the pin shaft, and the upper and lower ends of the rotating friction plate are respectively connected with the base plate through sliding bolts 8 at positions corresponding to the arc-shaped holes.

[0025] Further, the frame body comprises an upper frame beam 9, a middle frame beam 10 and a lower frame beam 11, and is connected and positioned by two side frame columns 12 to form a frame structure in the shape of a Chinese character 'Ri', the upper connecting plate is fixed on the upper frame beam, the rotating friction plate and the base plate are both fixed on the middle frame beam, and the lower connecting plate is fixed on the lower frame beam.

[0026] Meanwhile, the frame body can also be an integrally formed frame structure.

[0027] Further, a friction pad plate 13 is arranged between the rotating friction plate and the base plate, and the friction pad plate is tightly connected with the base plate.

[0028] The upper connecting plate, the lower connecting plate and the rotating friction plate are all rigid plates with large rigidity, which ensures effective transmission of interlayer displacement and effective realization of friction energy dissipation and avoids deformation loss.

[0029] Further, the bottom of the upper connecting plate, the top of the lower connecting plate and the two ends of the rotating friction plate are respectively provided with ear plates, and dampers are connected between the two corresponding ear plates, and the dampers are horizontally arranged.

[0030] The above composite damping damper is used as follows:

[0031] Under small earthquakes, the interlayer displacement difference between a layer and the adjacent layer of the structure is small, the deformation is transmitted to the damper of the layer, at this time, the rotating friction plate does not rotate, the damper of the layer generates a damping force to drive the deformation of the layer to decrease, and the damper plays an energy dissipation role based on the interlayer deformation (see Figure 2 ).

[0032] Under large earthquakes, the interlayer displacement difference between a layer and the adjacent layer of the structure is large, the damper of the layer drives the rotating friction plate to rotate, and the damping force generated by the damper is transmitted to the damper of the adjacent layer through the rotating friction plate. The damping force of the adjacent layer is opposite to the damping force of the layer, and the damper drives the displacement of the layer to decrease and the displacement of the adjacent layer to increase, so as to realize the coordination of the interlayer deformation of the structure, and the rotating friction plate and the friction pad plate also play a role in friction energy dissipation (see Figure 3 ).

Claims

1. A composite seismic damper for architectural inter-story deformation dispersion control, characterized by, The intermediate friction energy dissipation mechanism is connected with the upper connecting plate and the lower connecting plate through dampers at its upper and lower ends.

2. The composite seismic damper for architectural inter-story deformation dispersion control according to claim 1, characterized by, The intermediate friction energy dissipation mechanism comprises a rotating friction plate and a base plate, the upper and lower ends of the base plate are respectively provided with arc-shaped holes, the base plate is fixed to the frame body, the middle part of the rotating friction plate is hingedly connected with the frame body through a pin shaft and rotates around the pin shaft, and the upper and lower ends of the rotating friction plate are respectively connected with the base plate through sliding bolts corresponding to the positions of the arc-shaped holes.

3. The composite seismic damper for architectural inter-story deformation dispersion control according to claim 2, characterized by, The frame body comprises an upper frame beam, a middle frame beam and a lower frame beam, and is connected and positioned by two side frame columns to form a frame structure in the shape of a Chinese character "Ri", the upper connecting plate is fixed to the upper frame beam, the rotating friction plate and the base plate are both fixed to the middle frame beam, and the lower connecting plate is fixed to the lower frame beam.

4. The composite seismic damper for architectural inter-story deformation dispersion control according to claim 2 or 3, characterized by, A friction pad plate is arranged between the rotating friction plate and the base plate, and the friction pad plate is tightly connected with the base plate.

5. The composite seismic damper for architectural inter-story deformation dispersion control according to claim 4, characterized by, The bottom of the upper connecting plate, the top of the lower connecting plate and the two ends of the rotating friction plate are respectively provided with ear plates, and the dampers are connected between the corresponding two ear plates.

6. The composite seismic damper for architectural inter-story deformation dispersion control according to claim 5, wherein The dampers are horizontally arranged.

7. The composite seismic damper for architectural inter-story deformation dispersion control according to claim 6, characterized by, The upper connecting plate, the lower connecting plate and the rotating friction plate are all rigid plates.

8. The composite seismic damper for architectural inter-story deformation dispersion control according to claim 3, characterized by, The frame body is an integrally formed frame structure.

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