CN113863528A - Assembled energy dissipation cantilever structure system - Google Patents
Assembled energy dissipation cantilever structure system Download PDFInfo
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- CN113863528A CN113863528A CN202111173943.0A CN202111173943A CN113863528A CN 113863528 A CN113863528 A CN 113863528A CN 202111173943 A CN202111173943 A CN 202111173943A CN 113863528 A CN113863528 A CN 113863528A
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- frame
- shaped steel
- leaf spring
- restraining
- energy dissipation
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0237—Structural braces with damping devices
Abstract
The invention relates to an assembled energy dissipation cantilever structure system which comprises a frame column, a core cylinder and a pair of I-shaped steel beams I connected between the frame column and the core cylinder, wherein a vertical support is arranged between the pair of I-shaped steel beams I, the middle of the vertical support is connected with an inclined strut and an I-shaped steel beam II, one end of the inclined strut and one end of the I-shaped steel beam I are rigidly connected with the core cylinder, the I-shaped steel beam I is connected with the frame column through a steel plate spring connecting piece and an energy dissipation damper, and the I-shaped steel beam II is connected with an overhanging section steel component arranged in the middle of the frame column through a miniature buckling-preventing support and a steel plate spring viscoelastic damper. The invention utilizes the assembled connection of the steel plate spring connecting piece, the steel plate spring viscoelastic damper and the energy dissipation damper to connect the frame column and the extension arm of the core tube, thereby relieving the uneven deformation of the frame column and the core tube, improving the wind resistance or shock resistance and ensuring the structural safety.
Description
Technical Field
The invention belongs to the technical field of earthquake resistance and energy dissipation and shock absorption of engineering structures, and particularly relates to an assembled energy dissipation cantilever structure system.
Background
The high-rise building with the offset core tube can effectively utilize space and gradually becomes an important form of the high-rise building of a commercial project, but the structural characteristics of the offset core tube can bring more difficulties to the optimization of structural design, and some key technical difficulties and key scientific problems exist in the research and development process of the novel structural system. Among the more prominent problems are structural damage caused by uneven deformation resulting from the difference in vertical and horizontal deformation of the frame and the offset core barrel. Therefore, it is important to provide a structural design for the offset core barrel. In a frame-core barrel structure system, the core barrel is typically of concrete construction; the cantilever structure generally adopts a steel structure member; at present, the related structural design of the frame-core barrel still cannot well meet the requirement.
Disclosure of Invention
The invention aims to solve the problems and provide an assembled energy dissipation cantilever structure system, which can effectively relieve the uneven deformation of the structure by utilizing the assembled connection of a steel plate spring viscoelastic damper and an energy dissipation damper, and meet the requirements of earthquake resistance and wind resistance.
The purpose of the invention is realized by the following technical scheme:
an assembled energy dissipation cantilever structure system comprises a frame column, a core tube and a pair of I-shaped steel beams I connected between the frame column and the core tube,
a vertical support is arranged between the I-shaped steel beams I, the middle of the vertical support is connected with an inclined strut and the I-shaped steel beams II, one end of the inclined strut and one end of the I-shaped steel beams I are rigidly connected with the core cylinder,
the I-shaped steel beam I is connected with the frame column through a steel plate spring connecting piece and an energy dissipation shock absorber,
the I-shaped steel beam II is connected with an overhanging-type steel component arranged in the middle of the frame column through a miniature buckling-restrained brace and a steel plate spring sticky elastic damper.
Further, the frame column is connected with the steel plate spring connecting piece through a through column bolt, and the steel plate spring connecting piece is connected with the I-shaped steel beam I through an energy dissipation shock absorber.
Furthermore, the miniature buckling-restrained brace is respectively connected with an overhanging steel member and an I-shaped steel beam II, and the overhanging steel member and the I-shaped steel beam II are respectively connected with the steel plate spring viscoelastic damper through high-strength bolts.
Furthermore, the energy dissipation shock absorber comprises a constraint outer frame, a constraint inner frame, damping rubber I, damping rubber II, a damping spring, a limiting bolt, a gasket I and a gasket II;
the restraint outer frame and the restraint inner frame are connected through high-strength bolts, the lower part of the restraint inner frame, the damping spring, the gaskets I on the two sides of the spring, the damping rubber I and the bottom of the restraint outer frame are connected through limiting bolts which sequentially penetrate through the lower part of the restraint inner frame and then are screwed into nuts,
the top of the restraint inner frame, the damping rubber II and the gasket II are connected by a high-strength bolt which is screwed into a nut after sequentially penetrating,
one side surface of the restraint outer frame is connected with the steel plate spring connecting piece through a high-strength bolt.
Furthermore, a slotted hole I is reserved in the constraint outer frame, and the constraint outer frame and the constraint inner frame can move relatively due to the slotted hole I.
Furthermore, the micro buckling-restrained brace comprises a micro buckling-restrained brace core plate, a restraining cover plate and a restraining base plate, the restraining cover plate and the restraining base plate are connected through a high-strength bolt to further restrain the micro buckling-restrained brace core plate, and the micro buckling-restrained brace core plate is in an elliptical hole weakening form;
the core plate of the miniature buckling-restrained brace is connected with the flange plates of the overhanging steel member and the I-shaped steel beam I through connecting hinges respectively.
Further, the steel plate spring viscoelastic damper comprises a steel plate spring component, a connecting component and damping rubber III, wherein the damping rubber III is arranged between the steel plate spring component and the connecting component, and a connecting sleeve is arranged on the outer side of the steel plate spring component.
Further, set up in pairs between overhanging shaped steel component and the I-shaped steel roof beam II leaf spring glues bullet attenuator, leaf spring glue bullet attenuator adapting unit respectively with overhanging shaped steel component and I-shaped steel roof beam II are connected, and the connecting sleeve between the adjacent leaf spring glues the bullet attenuator contacts.
Furthermore, the leaf spring component is provided with a long slotted hole II which can enable the connection part to float, and the damping rubber III is respectively bonded with the leaf spring component and the connection component.
Furthermore, the frame column is a column structure with built-in section steel.
The invention connects the cantilever structure with the frame column through the assembly connection of the steel plate spring viscoelastic damper, the energy dissipation damper and the steel plate spring connecting piece, thereby forming the energy dissipation cantilever high-rise structure system which can relieve the uneven deformation of the offset core tube and the frame column. When the biased frame-core barrel is deformed unevenly, the steel plate spring viscoelastic damper, the energy dissipation damper and the steel plate spring connecting piece can enable the extending arm structure and the frame column to float relatively, so that the damage to the structure is avoided. Under the earthquake action, the steel plate spring viscoelastic damper, the energy dissipation damper, the steel plate spring connecting piece and the miniature buckling-restrained brace can also play an earthquake-resistant role, and the earthquake energy consumption can be concentrated at the assembled connecting part, so that the requirement of structural earthquake resistance is met.
Compared with the traditional frame-core tube energy dissipation cantilever structure system, the invention has the advantages that:
(1) the uneven deformation of the frame-core barrel can be well relieved, and the structural damage is reduced, especially under the condition of core barrel offset.
(2) The damping rubber in the steel plate spring viscoelastic damper and the steel plate spring play an important role in relieving uneven settlement, resisting vibration and resisting wind.
(3) The energy dissipation shock absorber plays an important role in resisting earthquake and relieving uneven settlement, is easy to replace, and effectively controls the repair cost of the structure after earthquake.
(4) The design of this kind of assembled connection has realized the easy assembly of structure, removable, energy consumption absorbing function.
Drawings
Figure 1 is a schematic view of an assembled energy dissipating boom structure system;
FIG. 2 is a floor plan view of an offset core barrel configuration;
figure 3 is a schematic view of the connection of a leaf spring connector and an energy absorber;
figure 4 is a schematic three-dimensional connection of a leaf spring connector and an energy-dissipating shock absorber;
figure 5 is a three dimensional schematic view of an energy dissipating shock absorber;
FIG. 6 is a three-dimensional schematic view of a constrained outer frame and a constrained inner frame;
FIG. 7 is a schematic connection diagram of a steel plate viscoelastic damper and a micro buckling restrained brace;
FIG. 8 is a schematic three-dimensional connection diagram of a steel plate viscoelastic damper;
FIG. 9 is a three-dimensional schematic view of a steel plate viscoelastic damper;
FIG. 10 is a three-dimensional assembly view of a steel plate viscoelastic damper;
FIG. 11 is a three-dimensional assembly view of the micro buckling restrained brace;
reference numbers in the figures:
1 is a frame column, 2 is a core barrel, 3 is a steel plate spring connecting piece, 4 is an energy dissipation shock absorber, 5 is a micro buckling-restrained brace, 6 is a steel plate spring viscoelastic damper, 7 is an inclined strut, 8 is an I-shaped steel beam I, 9 is an overhanging steel component, 10 is a vertical brace, 11 is an I-shaped steel beam I, 12 is a column penetrating bolt, 13 is a building sideline,
401 is a constraint outer frame, 402 is a constraint inner frame, 403 is damping rubber I, 404 is damping rubber I, 405 is a damping spring, 406 is a limit bolt, 407 is a gasket I, 408 is a gasket II, 4011 is a long slotted hole I,
501 is a core plate of the micro buckling-restrained brace, 502 is a restraining cover plate, 503 is a restraining bottom plate, 5011 is an elliptical hole, 601 is a steel plate spring component, 602 is a connecting component, 603 is a shock-absorbing rubber I, 604 is a connecting sleeve, 6011 is a long slotted hole II, and 901 is a connecting hinge.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Referring to fig. 1, the present embodiment is an assembled energy dissipation cantilever structure system, which includes a frame column 1, a core tube 2, a steel plate spring connector 3, an energy dissipation damper 4, a micro buckling-restrained brace 5, a steel plate spring viscoelastic damper 6, an inclined strut 7, an I-shaped steel beam I8, an overhanging shaped steel member 9, a vertical support 10, an I-shaped steel beam II11, and a stud bolt 12.
Referring to fig. 2, the core tube 2 is an offset core tube, and uneven deformation is easily generated between the core tube 2 and the frame column 1.
Referring to fig. 3 and 4, the frame column 1 is connected with the steel plate spring connector 3 through the stud bolts 12, and the steel plate spring connector 3 is connected with the I-shaped steel beam I8 through the energy-dissipating shock absorber 4.
The energy dissipation shock absorber 4 can enable the I-shaped steel beam I8 to float up and down, the steel plate spring connecting piece 3 can enable the I-shaped steel beam I8 to float up and down, and float left and right, the two play roles in dissipating energy and absorbing shock, and uneven deformation caused by core barrel offset can be relieved.
Referring to fig. 5 and 6, the energy dissipation damper 4 includes a restraint outer frame 401, a restraint inner frame 402, a damping rubber I403, a damping rubber II404, a damping spring 405, a limit bolt 406, a gasket I407, and a gasket II 408. The I-shaped steel beam I8 upper flange plate and the lower flange plate are connected with two energy dissipation dampers 4. Under the action of an earthquake, the high-strength bolt can float up and down along the long slotted hole I4011, and the damping rubber I403, the damping rubber II404 and the damping spring 405 are also beneficial to energy dissipation and shock absorption of the structure. The energy absorber 4 may also be used to mitigate uneven settlement of the structure.
Referring to fig. 7 and 8, four steel plate spring viscoelastic dampers 6 are arranged on the overhanging steel member 9 and the i-shaped steel beam II11, the overhanging steel member 9 and the steel plate spring viscoelastic dampers 6 on the i-shaped steel beam II11 are connected through a connecting sleeve 604, the micro buckling-restrained brace 5 is connected with the overhanging steel member 9 and the i-shaped steel beam II through a connecting hinge 901, and the upper flange plate and the lower flange plate of the overhanging steel member 9 and the i-shaped steel beam II11 are both connected with the micro buckling-restrained brace 5.
Steel plate spring glues plays attenuator 6 and miniature buckling restrained brace 5 and all plays energy dissipation cushioning effect, and miniature buckling restrained brace 5 is rotatable, and steel plate spring glues plays attenuator 6 also has good damping performance, and the two plays energy dissipation absorbing effect jointly.
Referring to fig. 9 and 10, the steel plate spring viscoelastic damper 6 comprises a steel plate spring component 601, a connecting component 602 and a damping rubber III603, wherein the long slot hole II6011 enables the connecting part to float, and the damping rubber III603 and the steel plate spring component 601 play roles of energy dissipation and shock absorption, and the two play roles of alleviating uneven settlement, resisting earthquake and resisting wind together.
Referring to fig. 11, the micro buckling-restrained brace 5 comprises a micro buckling-restrained brace core plate 501, a restraining cover plate 502 and a restraining base plate 503, wherein the micro buckling-restrained brace core plate 501 is provided with an elliptical hole 5011, and the elliptical hole 5011 can enhance the dissipation capacity and ductility of the micro buckling-restrained brace core plate 501, thereby facilitating energy dissipation and shock absorption of the structure. The constraining cover plate 502 and the constraining bottom plate 503 play a constraining role for the micro buckling restrained brace core plate 501.
The invention provides a method for alleviating uneven settlement and energy dissipation and shock absorption by utilizing a steel plate spring and arranging damping rubber through the assembly connection of the steel plate spring viscoelastic damper, the energy dissipation damper and the steel plate spring connecting piece, the assembly connection of the steel plate spring viscoelastic damper, the energy dissipation damper and the steel plate spring connecting piece is utilized to enable the joint to float so as to slow down the uneven settlement of the frame-offset core barrel, the energy dissipation and shock absorption effects are also exerted, and the shock resistance of the joint is also enhanced by the miniature buckling-restrained brace. The cantilever structure can also concentrate the damage and the destruction of the post-earthquake structure at the joint, and realize the functions of easy assembly, replacement, energy consumption, shock absorption and the like.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. An assembled energy dissipation cantilever structure system is characterized by comprising a frame column (1), a core tube (2) and a pair of I-shaped steel beams I (8) connected between the frame column (1) and the core tube (2),
a vertical support (10) is arranged between the pair of I-shaped steel beams I (8), an inclined support (7) and an I-shaped steel beam I (11) are connected in the middle of the vertical support (10), one end of the inclined support (7) and one end of the I-shaped steel beam I (8) are rigidly connected with the core barrel (2),
the I-shaped steel beam I (8) is connected with the frame column (1) through a steel plate spring connecting piece (3) and an energy dissipation shock absorber (4),
the I-shaped steel beam II (11) is connected with an overhanging section steel component (9) arranged in the middle of the frame column (1) through a micro buckling-restrained brace (5) and a steel plate spring viscoelastic damper (6).
2. An assembled energy dissipating boom structure system as claimed in claim 1 wherein the frame posts (1) are connected to the leaf spring connectors (3) by stud bolts (12) and the leaf spring connectors (3) are connected to the I-beam I (8) by energy dissipating shock absorbers (4).
3. The assembly type energy dissipation outrigger structure system of claim 1, characterized in that the micro buckling-restrained brace (5) is connected with an overhanging steel component (9) and an I-shaped steel beam II (11), respectively, and the overhanging steel component (9) and the I-shaped steel beam I (11) are connected with the steel plate spring viscoelastic damper (6) through high-strength bolts, respectively.
4. An assembled energy dissipating boom structure system as claimed in claim 1 wherein the energy dissipating shock absorber (4) comprises an outer restraining frame (401), an inner restraining frame (402), a shock absorbing rubber I (403), a shock absorbing rubber II (404), a shock absorbing spring (405), a limit bolt (406), a washer I (407) and a washer II (408);
the restraining outer frame (401) and the restraining inner frame (402) are connected through high-strength bolts, the lower part of the restraining inner frame (402), the damping spring (405), gaskets I (407) at two sides of the spring, the damping rubber I (403) and the bottom of the restraining outer frame (401) are connected through limiting bolts (406) which penetrate through the limiting bolts in sequence and then are screwed into nuts,
the top of the restraint inner frame (402), the shock absorption rubber I (404) and the gasket I (408) are connected by a high-strength bolt which is screwed into a nut after passing through the top in turn,
one side surface of the restraint outer frame (401) is connected with the steel plate spring connecting piece (3) through a high-strength bolt.
5. An assembled energy dissipating boom structure system as claimed in claim 4, wherein said outer constraining frame (401) has a slotted hole I (4011), and said outer constraining frame (401) and said inner constraining frame (402) can move relatively to each other due to the slotted hole I (4011).
6. An assembled energy dissipation boom structure system as claimed in claim 1, wherein the micro buckling restrained brace (5) comprises a micro buckling restrained brace core plate (501), a restraining cover plate (502) and a restraining base plate (503), the restraining cover plate (502) and the restraining base plate (503) are connected through high-strength bolts to restrain the micro buckling restrained brace core plate (501), and the micro buckling restrained brace core plate (501) is weakened to be an elliptical hole (5011);
the miniature buckling-restrained brace core plate (501) is connected with the overhanging steel member (9) and the flange plate of the I-shaped steel beam II (11) through connecting hinges (901) respectively.
7. An assembled energy dissipating boom structure system as claimed in claim 1 wherein said leaf spring viscoelastic damper (6) comprises a leaf spring member (601), a connecting member (602) and a damping rubber III (603), said damping rubber III (603) is disposed between the leaf spring member (601) and the connecting member (602), and a connecting sleeve (604) is disposed outside said leaf spring member (601).
8. An assembled energy dissipating boom structure system as claimed in claim 7, wherein the leaf spring viscoelastic dampers (6) are arranged in pairs between the overhanging steel members (9) and the i-section steel beams II (11), the connecting parts (602) of the leaf spring viscoelastic dampers (6) are respectively connected with the overhanging steel members (9) and the i-section steel beams II (11), and the connecting sleeves (604) between the adjacent leaf spring viscoelastic dampers (6) are contacted.
9. An assembled energy dissipating boom structural system as claimed in claim 8 wherein said leaf spring element (601) is provided with a slotted hole II (6011) to allow the joint to float, and said shock absorbing rubber III (603) is bonded to the leaf spring element (601) and the connecting element (602), respectively.
10. An assembled energy dissipating boom structural system as claimed in claim 1 wherein said frame column (1) is a column structure with built-in steel sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111173943.0A CN113863528B (en) | 2021-10-09 | 2021-10-09 | Assembled energy dissipation cantilever structure system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111173943.0A CN113863528B (en) | 2021-10-09 | 2021-10-09 | Assembled energy dissipation cantilever structure system |
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| CN113863528A true CN113863528A (en) | 2021-12-31 |
| CN113863528B CN113863528B (en) | 2022-12-16 |
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Citations (8)
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| JPH11140977A (en) * | 1997-11-05 | 1999-05-25 | Nippon Steel Corp | Rotational rigidity adjustment type column-beam connection structure and earthquake-resisting building |
| JP2010018951A (en) * | 2008-07-08 | 2010-01-28 | Daiwa House Industry Co Ltd | Vibration control stud concurrently using viscoelastic damper and buckling restraining brace |
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2021
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