Self-recovery energy dissipation device for construction engineering

Abstract

The present application relates to a kind of X-shaped four-chamber damping energy dissipation seismic building frame, and the seismic building frame includes first and last bottom frame beam, left frame column, top frame beam and right frame column, and X-shaped four-chamber damping energy dissipation device is arranged in the internal gap of the seismic building frame, four stress terminals of the X-shaped four-chamber damping energy dissipation device extend to the four corners of the seismic building frame, and the stress terminal is connected with the four corners of the seismic building frame by steel wire rope and steel strand.The X-shaped four-chamber damping energy dissipation device of the present application enhances the energy dissipation capacity and self-recovery ability of the seismic building frame.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of building structure anti-seismic, and particularly relates to a self-recovery energy dissipation damping device for building engineering. BACKGROUND

[0002] Building structure is the space for people to live and produce, and its performance under the action of earthquake is crucial to personnel casualty and property damage. At present, the anti-seismic design principle of building structure in China is "no damage under small earthquake, repairable under medium earthquake, and no collapse under large earthquake", which mainly dissipates seismic energy through elastic-plastic deformation of structural members. Therefore, building structure will inevitably produce different degrees of damage and large residual deformation after strong earthquake, resulting in difficulty in repairing and loss of use function, and finally the structure can only be demolished and rebuilt. Installing damper in building structure can effectively increase the damping of the structure, absorb and consume the vibration energy entering the structure, and reduce the dynamic response of the structure. At present, damper has been widely used in the field of engineering structure anti-seismic and wind resistance, and common dampers generally include: metal yielding damper, lead damper, friction damper, viscoelastic damper, viscous fluid damper, electric induction type energy dissipation device, electromagnetic fluid damper, and composite damper.

[0003] Although installing damper in the structure can increase the anti-seismic performance of the structure and reduce the damage of the structure, since ordinary damper does not have self-recovery ability, it cannot eliminate or reduce the residual deformation of the structure after earthquake, cannot improve the recoverable function of building structure after strong earthquake, and the use function of the structure still cannot be recovered. In addition, the support system of the damper needs large stiffness, so the damper is large in size, large in self-weight, serious in waste, and increases the dynamic response of the structure to some extent. SUMMARY

[0004] In order to solve the above problems in the prior art, the purpose of the present application is to provide a self-recovery energy dissipation damping device for building engineering, which not only has energy dissipation damping capacity and can improve the energy dissipation damping performance of the structure, but also has self-recovery ability, can enhance the recoverable function of the damping structure, reduce the residual deformation of the structure after strong earthquake, and make the use function of the structure recovered. At the same time, the device does not need a large support system, saves materials, and is small in self-weight.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0006] The application provides a self-recovery energy dissipation device for building engineering, which comprises a bottom frame beam, a left frame column, a right frame column and a top frame beam, the upper end of the left frame column is fixed with the left end of the top frame beam, the lower end of the left frame column is fixed with the left end of the bottom frame beam, the upper end of the right frame column is fixed with the right end of the top frame beam, and the lower end of the right frame column is fixed with the right end of the bottom frame beam; an X-shaped flat support is arranged in the internal gap between the bottom frame beam, the left frame column, the right frame column and the top frame beam, an X-shaped groove damping channel is engraved on the surface of the X-shaped flat, an X-shaped cover plate is arranged outside the X-shaped groove damping channel, and the partition plate between the upper and lower intersection points of the X-shaped support divides the X-shaped groove damping channel into two independent groove damping channels, the upper and lower ends of each groove damping channel are fixedly connected with a first circular cylinder cover plate of a cylindrical hydraulic cylinder, the other end of the cylindrical hydraulic cylinder is provided with a second circular cylinder cover plate, a piston rod is arranged in the cylindrical hydraulic cylinder, the end of the piston rod arranged on the inner side of the cylindrical hydraulic cylinder is provided with a cylindrical piston, the cylindrical piston divides the space surrounded by the first circular cylinder cover plate, the second circular cylinder cover plate and the cylindrical hydraulic cylinder into two chambers, the other end of the piston rod extending out of the cylindrical hydraulic cylinder is connected with a steel wire rope, the steel wire rope is anchored on the node of the adjacent frame beam and frame column through an anchor plate, and the upper surface of the second circular cylinder cover plate is provided with a steel strand, the other end of the steel strand is also anchored on the node of the adjacent frame beam and frame column through an anchor plate; two fan-shaped flat damping channels are arranged between the lower chamber of the left lower hydraulic cylinder a and the upper chamber of the left upper hydraulic cylinder b and between the lower chamber of the right lower hydraulic cylinder d and the upper chamber of the right upper hydraulic cylinder c, the fan-shaped flat damping channels are communicated with the chambers in the hydraulic cylinder through the circular holes arranged on the second circular cylinder cover plate; and the upper and lower chambers of the hydraulic cylinder, the fan-shaped flat damping channels and the groove damping channels are filled with fluid damping energy dissipation materials.

[0007] According to the self-recovery energy dissipation device for building engineering, an annular sealing groove is formed in the outer side of the cylindrical piston, and an O-shaped sealing ring is arranged in the annular sealing groove; and according to the self-recovery energy dissipation device for building engineering, the anchoring points of the anchor plates between the bottom frame beam and the left frame column, between the left frame column and the top frame beam, between the top frame beam and the right frame column and between the bottom frame beam and the right frame column are A, B, C and D points respectively.

[0008] According to the self-recovery energy dissipation device for building engineering, the steel wire (10) needs to be prestressed, and the steel strand (11) does not need to be prestressed. The beneficial effects of the present application are: (1) the self-recovery energy dissipation device for building engineering provided with the steel strand between the piston rod and the beam-column joint can provide elastic recovery force, so that the device can recover to the original position after the earthquake, thereby reducing the residual deformation of the building structure after the earthquake, enhancing the recoverable function of the building structure, recovering the use function of the building structure after the strong earthquake, and enabling the building structure to be used after the earthquake. (2) the self-recovery energy dissipation device for building engineering adopts a speed-dependent or intelligent damping material, which does not affect the self-recovery performance of the device and the building structure after the earthquake; at the same time, it can increase the damping and energy dissipation capacity of the structure, reduce the dynamic response of the building structure during the earthquake, and increase the seismic performance of the structure. (3) the device is connected with the building structure through the steel wire and the steel strand, and the connection system is a flexible structure with light weight, saving materials and cost. (4) the cross-sectional shape and size of the damping channel are no longer constrained by the cylinder, and can be designed separately. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 is a structural assembly schematic diagram of the self-recovery energy dissipation device for building engineering of the present application;

[0010] Figure 2 is Figure 1 N-N section view in

[0011] Figure 3 is Figure 1 F-F section view in DETAILED DESCRIPTION

[0012] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0013] As Figures 1-3As shown, the self-recovery energy dissipation device for building engineering provided by the present application comprises a bottom frame beam 21, a left side frame column 22, a right side frame column 23 and a top frame beam 24, the upper end of the left side frame column 22 is fixed with the left end of the top frame beam 24, the lower end of the left side frame column 22 is fixed with the left end of the bottom frame beam 21, the upper end of the right side frame column 23 is fixed with the right end of the top frame beam 24, and the lower end of the right side frame column 23 is fixed with the right end of the bottom frame beam 21; an X-shaped flat plate support 1 is arranged in the internal gap between the bottom frame beam 21, the left side frame column 22, the right side frame column 23 and the top frame beam 24, an X-shaped groove damping channel is engraved on the surface of the X-shaped flat plate, an X-shaped cover plate 17 is arranged outside the X-shaped groove damping channel, and a partition plate 16 between the upper and lower intersection points of the X-shaped support divides the X-shaped groove damping channel into two independent groove damping channels 2, the upper and lower ends of each groove damping channel are fixedly connected with a first circular cylinder cover plate 3 of a cylindrical hydraulic cylinder 7, the other end of the cylindrical hydraulic cylinder 7 is provided with a second circular cylinder cover plate 8, a piston rod 9 is arranged in the cylindrical hydraulic cylinder 7, the end of the piston rod 9 arranged in the inside of the cylindrical hydraulic cylinder 7 is provided with a cylindrical piston 5, the cylindrical piston 5 divides the space surrounded by the first circular cylinder cover plate 3, the second circular cylinder cover plate 8 and the cylindrical hydraulic cylinder 7 into two chambers, the other end of the piston rod extending out of the cylindrical hydraulic cylinder 7 is connected with a steel wire rope 10, the steel wire rope 10 is anchored on the node of the adjacent frame beam and frame column through an anchor plate 12, the upper surface of the second circular cylinder cover plate 8 is provided with a steel strand 11, and the other end of the steel strand 11 is also anchored on the node of the adjacent frame beam and frame column through the anchor plate 12; two fan-shaped flat plate damping channels 15 are arranged between the lower chamber of the left lower hydraulic cylinder a and the upper chamber of the left upper hydraulic cylinder b and between the lower chamber of the right lower hydraulic cylinder d and the upper chamber of the right upper hydraulic cylinder c, the fan-shaped flat plate damping channels 15 are communicated with the chambers in the hydraulic cylinder through a circular hole 13 arranged on the second circular cylinder cover plate 8; fluid damping energy dissipation materials 4 are filled in the upper and lower chambers of the hydraulic cylinder, the fan-shaped flat plate damping channels 15 and the groove damping channels 2.

[0014] In order to increase the sealing property between the cylindrical piston 5 and the circular cylinder 7, an annular sealing groove is arranged on the outside of the cylindrical piston 5, and an O-shaped sealing ring 6 is arranged in the annular sealing groove.

[0015] In actual field application, the anchoring point of the anchor plate between the bottom frame beam 21 and the left side frame column 22 is point A, the anchoring point of the anchor plate between the left side frame column 22 and the top frame beam 24 is point B, the anchoring point of the anchor plate between the top frame beam 24 and the right side frame column 23 is point C, and the anchoring point of the anchor plate between the bottom frame beam 21 and the right side frame column 23 is point D.

[0016] In order to reduce the elastic deformation of the steel wire and convert the relative displacement between the shear walls BE (or CE) into the relative displacement between the cylinder and the piston rod of the damper as much as possible, the steel wire needs to be prestressed.

[0017] The working principle of the present application is as follows:

[0018] Under the action of horizontal seismic load, the building structure will produce inter-story relative displacement, and the points B and C at both ends of the top reinforced concrete beam 24 will produce horizontal relative displacement with respect to the points A and D at both ends of the bottom reinforced concrete beam 21. The distance between the points A and C is elongated (in which case the distance between the points B and D is shortened) or shortened (in which case the distance between the points B and D is elongated). Since the steel wire 10 connected with the piston rod 9 is prestressed, and the cylindrical hydraulic cylinder 7 and the X-shaped flat plate support will not be deformed, the relative displacement between the points A and C and the points B and D is converted into the relative displacement between the cylindrical piston 5 and the hydraulic cylinder 7. When the distance between the points A and C is elongated, the pistons inside the hydraulic cylinders a and c move away from each other, and the volumes of the lower chamber inside the hydraulic cylinder a and the upper chamber inside the hydraulic cylinder c become smaller. Under the action of pressure, the fluid damping energy dissipation material 4 in the lower chamber inside the hydraulic cylinder a and the upper chamber inside the hydraulic cylinder c flows into the upper chamber inside the hydraulic cylinder b and the lower chamber inside the hydraulic cylinder d through the left and right fan-shaped flat plate damping channels 15, respectively, while the fluid damping energy dissipation material 4 in the lower chamber inside the hydraulic cylinder b and the upper chamber inside the hydraulic cylinder d flows into the upper chamber inside the hydraulic cylinder a and the lower chamber inside the hydraulic cylinder c through the left and right groove damping channels 2, respectively. When the distance between the points B and D is elongated, the fluid damping energy dissipation material 4 flows in the opposite direction. Therefore, during an earthquake, the fluid damping energy dissipation material 4 flows back and forth in the fan-shaped flat plate damping channels 15 and the groove damping channels 2, thereby generating damping force and energy dissipation effect, effectively dissipating the seismic energy transmitted to the building structure, reducing the dynamic response of the structure under the action of seismic load, and improving the seismic performance of the building structure.

[0019] When the structure has residual deformation after a strong earthquake, the distance between A and C or B and D is elongated due to the existence of residual deformation, and the steel wire 11 generates elastic restoring force due to the elongation. The elastic restoring force can pull the device and the building structure back to the original position as much as possible, thereby reducing the residual deformation of the building structure. Therefore, the device has self-recovery capability.

[0020] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present application, and these should also be considered as the protection scope of the present application.

Claims

1. A damping method based on a self-recovery energy dissipation device for construction engineering, the self-recovery energy dissipation device comprising a bottom frame beam (21), a left side frame column (22), a right side frame column (23) and a top frame beam (24), the upper end of the left side frame column (22) being fixed with the left end of the top frame beam (24), the lower end of the left side frame column (22) being fixed with the left end of the bottom frame beam (21), the upper end of the right side frame column (23) being fixed with the right end of the top frame beam (24), and the lower end of the right side frame column (23) being fixed with the right end of the bottom frame beam (21); characterized in that: The internal space between the bottom frame beam (21), the left frame column (22), the right frame column (23) and the top frame beam (24) is provided with an X-shaped flat support (1), X-shaped groove damping channels are engraved on the surface of the X-shaped flat, X-shaped cover plates (17) are arranged outside the X-shaped groove damping channels, the partition plates (16) between the upper and lower intersection points of the X-shaped support divide the X-shaped groove damping channels into two independent groove damping channels (2), the upper and lower ends of each groove damping channel are fixedly connected with the first circular cylinder cover plate (3) of the cylindrical hydraulic cylinder (7), the other end of the cylindrical hydraulic cylinder (7) is provided with a second circular cylinder cover plate (8), the piston rod (9) is arranged in the cylindrical hydraulic cylinder (7), the end of the piston rod (9) arranged in the inside of the cylindrical hydraulic cylinder (7) is provided with a cylindrical piston (5), the cylindrical piston (5) divides the space surrounded by the first circular cylinder cover plate (3), the second circular cylinder cover plate (8) and the cylindrical hydraulic cylinder (7) into two chambers, the other end of the piston rod extending out of the cylindrical hydraulic cylinder (7) is connected with a steel wire rope (10), the steel wire rope (10) is anchored on the node of the adjacent frame beam and frame column through an anchor plate (12), the upper surface of the second circular cylinder cover plate (8) is provided with a steel strand (11), the other end of the steel strand (11) is also anchored on the node of the adjacent frame beam and frame column through the anchor plate (12); the lower chamber of the left lower hydraulic cylinder a and the upper chamber of the left upper hydraulic cylinder b, the lower chamber of the right lower hydraulic cylinder d and the upper chamber of the right upper hydraulic cylinder c are provided with two fan-shaped flat damping channels (15), the fan-shaped flat damping channels (15) are communicated with the chambers in the hydraulic cylinder through the circular holes (13) arranged in the second circular cylinder cover plate (8); the upper and lower chambers of the hydraulic cylinder, the fan-shaped flat damping channels (15) and the groove damping channels (2) are filled with fluid damping energy dissipation materials (4); the outside of the cylindrical piston (5) is provided with an annular sealing groove, and an O-shaped sealing ring (6) is arranged in the annular sealing groove; the steel wire rope (10) needs to be prestressed, and the steel strand (11) does not need to be prestressed; The anchoring point of the anchor plate between the bottom frame beam (21) and the left frame column (22) is point A, the anchoring point of the anchor plate between the left frame column (22) and the top frame beam (24) is point B, the anchoring point of the anchor plate between the top frame beam (24) and the right frame column (23) is point C, and the anchoring point of the anchor plate between the bottom frame beam (21) and the right frame column (23) is point D. The shock absorption method is that under the action of horizontal seismic load, the building structure will produce interlayer relative displacement, points B and C at both ends of the top reinforced concrete beam (24) have horizontal relative displacement relative to points A and D at both ends of the bottom reinforced concrete beam (21), the distance between the two points A and C is lengthened while the distance between the two points B and D is shortened, or the distance between the two points A and C is shortened while the distance between the two points B and D is lengthened, due to the over-prestressed steel wire rope (10) connected with the piston rod (9) and the non-deformation of the cylindrical hydraulic cylinder barrel (7) and the X-shaped flat plate support, the relative displacement between A and C and B and D is converted into the relative displacement between the cylindrical piston (5) and the hydraulic cylinder barrel (7); when the distance between the two points A and C is lengthened, the pistons inside the hydraulic cylinder a and the hydraulic cylinder c move away from each other, the volumes of the lower chamber inside the hydraulic cylinder a and the upper chamber inside the hydraulic cylinder c become smaller, under the action of pressure, the fluid damping energy dissipation material (4) in the lower chamber inside the hydraulic cylinder a and the upper chamber inside the hydraulic cylinder c flows into the upper chamber inside the hydraulic cylinder b and the lower chamber inside the hydraulic cylinder d through the left and right fan-shaped flat plate damping channels (15) respectively, while the fluid damping energy dissipation material (4) in the lower chamber inside the hydraulic cylinder b and the upper chamber inside the hydraulic cylinder d flows into the upper chamber inside the hydraulic cylinder a and the lower chamber inside the hydraulic cylinder c through the left and right groove damping channels (2) respectively; when the distance between the two points B and D is lengthened, the fluid damping energy dissipation material (4) flows in the above reverse direction; therefore, during the earthquake, the damping energy dissipation material (4) flows back and forth in the fan-shaped flat plate damping channels (15) and the groove damping channels (2), so as to generate damping force and energy dissipation and shock absorption effect, thereby effectively dissipating the earthquake energy transmitted to the building structure, reducing the dynamic response of the structure under the action of seismic load, and improving the seismic performance of the building structure.

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