CN213087105U - Connection structure of large-tonnage coupling beam damper - Google Patents
Connection structure of large-tonnage coupling beam damper Download PDFInfo
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- CN213087105U CN213087105U CN202021786586.6U CN202021786586U CN213087105U CN 213087105 U CN213087105 U CN 213087105U CN 202021786586 U CN202021786586 U CN 202021786586U CN 213087105 U CN213087105 U CN 213087105U
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Abstract
The utility model belongs to the technical field of the building engineering energy dissipation shock attenuation a connection structure of large-tonnage even roof beam attenuator. The technical scheme is as follows: the connecting beam dampers are arranged in the middle of the connecting beam in parallel along the width direction of the connecting beam, and the connecting beam is divided into connecting beam substructures on two sides and a connecting beam damper in the middle by the connecting beam dampers; two ends of each coupling beam damper are respectively connected and fixed with the coupling beam substructure; in the connecting beam substructure, a second end plate is arranged behind the first end plate; a first steel rib is arranged between the first end plate and the second end plate, the cross section of the first steel rib is the same as that of the connecting beam damper, and the first steel rib and the connecting beam damper are arranged at the same elevation relative to the first end plate in a mirror image mode; in the connecting beam substructure, the rear side of the second end plate is provided with a second steel rib, and the second steel rib extends into the shear wall. The utility model discloses aim at solving the big tonnage and link the difficulty of roof beam attenuator production and installation, make and link the roof beam attenuator can normally exert energy dissipation cushioning effect, reduce the construction degree of difficulty simultaneously.
Description
Technical Field
The utility model belongs to the technical field of the building engineering energy dissipation shock attenuation, especially, relate to a connection structure of large-tonnage even roof beam attenuator.
Background
The earthquake causes great loss to human society due to the characteristics of strong burst, great destructiveness and the like. The collapse of a large number of buildings in an earthquake is a main cause of casualties and property loss. Therefore, how to reduce the damage degree of the building in the earthquake is a topic which is generally concerned by people. Extensive research shows that the energy dissipation and shock absorption device is additionally arranged in the building, so that the damage degree of the building in the earthquake can be effectively reduced. In recent years, with the continuous and deep research on energy dissipation and shock absorption technologies, the energy dissipation and shock absorption technologies are gradually and widely applied to building engineering.
In the shear wall structure, the connecting beam is used as a first anti-seismic defense line of the structure and can enter the yielding dissipation seismic energy before the wall limb, so that the safety of the whole structure is protected. However, the design of the connecting beam is a difficult problem in structural design, the design is complex, and particularly in a high-rise structure in a high-intensity area, the condition that the connecting beam has serious reinforcement is often generated. After the connecting beam damper is used for replacing a common connecting beam, the design difficulty can be effectively reduced, energy consumption can be participated in during an earthquake, and the safety of the main body structure is protected. The coupling beam damper is used as a special energy consumption component, and can increase rigidity and damping ratio in performance, and simultaneously meet the requirements of component bearing capacity and energy consumption and shock absorption. The coupling beam damper is one of metal dampers, has strong deformation capacity, good fatigue performance and stable hysteresis curve, and realizes energy consumption by means of plastic deformation of steel, thereby achieving the effect of shock absorption. The link beam damper is generally disposed in the middle of the link beam and is primarily subjected to shear. The coupling beam damper replaces a common concrete coupling beam, and has the advantages that: the problem of excessive ribs of a common connecting beam is solved; the shock-proof wall can be used as a first shock-proof line, plays a shock-proof role under frequent earthquakes, provides proper rigidity for the structure, and plays a role in energy dissipation and shock absorption under the defense earthquake and rare earthquakes; the energy dissipation and shock absorption performance is good, the hysteresis curve does not have the pinching phenomenon of a common connecting beam, and the energy consumption capability is stronger; the maintenance cost is low, the service life is the same as that of the main body structure, and the maintenance and the replacement are convenient after the earthquake.
In a high-rise structure of a high-intensity area, the tonnage of the connecting beam damper is large, and a large connecting beam damper is adopted in the traditional method, so that the connecting beam damper is connected with a connecting beam substructure, and a thick steel plate is needed. The thickness of the steel plate is too large, so that the performance of the coupling beam damper is difficult to ensure, and even the coupling beam damper with a certain tonnage can not be produced. The connecting beam is a reinforced concrete beam, the arranged steel bars are dense, the connecting beam is easy to exceed the steel bars, and the connecting beam is easy to conflict with the steel bars in the shear wall in the installation process, so that the conditions of partial stirrup cutting, main bar shifting and the like are caused, and the construction is influenced. In this case, it is of great significance to design a connection structure for large-tonnage coupling beam dampers.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a connection structure of big-tonnage even roof beam attenuator aims at solving the difficulty of big-tonnage even roof beam attenuator production and installation, makes even roof beam attenuator can normally exert energy dissipation cushioning effect, reduces the construction degree of difficulty simultaneously.
The technical scheme of the utility model is that: a connecting structure of a large-tonnage connecting beam damper is characterized in that a plurality of connecting beam dampers are arranged in parallel in the middle of a connecting beam along the width direction of the connecting beam, and the connecting beam is divided into a connecting beam substructure at two sides and a connecting beam damper in the middle by the connecting beam dampers; two ends of each coupling beam damper are respectively connected and fixed with the coupling beam substructure; the cantilever end part of the connecting beam substructure is provided with a first end plate, and two ends of each connecting beam damper are respectively fixed on the first end plate; in the connecting beam substructure, a second end plate is arranged behind the first end plate; a first steel rib is arranged between the first end plate and the second end plate, the cross section of the first steel rib is the same as that of the connecting beam damper, and the first steel rib and the connecting beam damper are arranged at the same elevation relative to the first end plate in a mirror image mode; in the connecting beam substructure, the rear side of the second end plate is provided with a second steel rib, and the second steel rib extends into the shear wall.
Based on the technical characteristics: the two connecting beam dampers are symmetrically arranged along the central line of the connecting beam.
Based on the technical characteristics: the second steel rib is a single steel rib.
Based on the technical characteristics: the width of the second steel rib flange is gradually reduced from the second end plate to form a trapezoidal transition section, and the width of one end of the short side of the trapezoidal transition section is unchanged and extends to the other end of the second steel rib in the shear wall.
Based on the technical characteristics: the coupling beam damper is a shear type mild steel damper.
Based on the technical characteristics: the connecting mode of the connecting beam damper and the first end plate is welding.
Based on the technical characteristics: the first end plate, the second end plate, the first steel rib and the second steel are made of high-strength steel, and the coupling beam damper is made of low-yield-point high-ductility mild steel.
Based on the technical characteristics: the main rib of the connecting beam is cut off by the connecting beam damper, and the intersection of the main rib at the bottom of the connecting beam substructure and the first end plate is connected to the first end plate by a sleeve; the head of the main rib at the top of the connecting beam substructure is directly closed at the end part of the connecting beam substructure at the non-intersecting part of the main rib and the first end plate.
The utility model has the advantages of it is following:
1) the utility model provides an in the big-tonnage is roof beam attenuator structure even, adopt a large-scale roof beam attenuator even among a plurality of parallelly connected roof beam attenuators replacement traditional methods, not only can reach the same rigidity and additional damping ratio requirement, make the steel sheet thickness of roof beam attenuator even moreover at reasonable within range, make the transmission of first end plate department attenuator power more even, make the first end plate thickness reduce.
2) The steel rib connecting beam substructure is adopted, the sections of the steel rib and the connecting beam damper are the same, and the steel rib and the connecting beam damper are in mirror images relative to the first end plate and can directly transmit the internal force of the connecting beam damper.
3) The steel rib connecting beam substructure is adopted, the steel rib bears the larger part of bending moment and shearing force, the configuration quantity of the steel bars of the connecting beam substructure is less than that of the common reinforced concrete connecting beam, the condition of the excessive bars of the connecting beam is not easy to occur, and meanwhile, the connecting beam substructure is convenient to be connected with a shear wall.
4) The first steel rib is connected with the second steel rib through the second end plate, the second steel rib is a single steel rib, and the steel bars can conveniently penetrate through the web plate of the steel ribs.
5) First end plate, second end plate, first reinforcing bar, second reinforcing bar, horizontal stiffening rib all adopt high strength steel, stretch into certain length in the shear force wall with the second reinforcing bar simultaneously, guarantee even roof beam attenuator no matter under the condition of frequently meeting earthquake or rare meeting earthquake, homoenergetic is normally worked.
6) The arrangement of the coupling beam damper does not influence the arrangement of the building floor slab and the normal use function of the building, and the service life of the damper is the same as that of the main body.
Drawings
Fig. 1 is a schematic elevation view of the connection structure of the large-tonnage coupling beam damper of the present invention.
FIG. 2 is a sectional view of the position 1-1 of the connection structure of the large-tonnage connecting beam damper of the present invention.
FIG. 3 is a sectional view of the position 2-2 of the connection structure of the large-tonnage connecting beam damper of the present invention.
FIG. 4 is a sectional view of the position 3-3 of the connection structure of the large-tonnage connecting beam damper of the present invention.
Reference numerals:
1-beam-coupled damper; 2-a first end plate; 3-a first steel rib; 4-a second end plate; 5-second steel skeleton; 6-sealing the head plate; 7-a stiffener; 8-studs, 9-shear walls and 10-floors.
Detailed Description
The following describes the present invention in further detail with reference to the accompanying drawings. These embodiments are provided only for illustrating the present invention and are not intended to limit the present invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in figures 1 and 2, two parallel-connected connecting beam dampers 1 are arranged in the middle of a connecting beam and are symmetrically arranged along the center line of the connecting beam. The coupling beam damper is a shear steel plate with flanges at the upper end and the lower end and a ribbed plate in the middle, and is made of low-yield-point high-ductility mild steel. The number of the coupling beam dampers and the form of the cross section are shown in the figure only for illustration, and the form, the size and the number of the cross section can be determined according to the actual engineering situation. The coupling beam damper is a shear type soft steel damper, and belongs to the existing mature technology.
The connecting beam is divided into connecting beam substructures at two sides and a connecting beam damper in the middle by the connecting beam damper; and two ends of each coupling beam damper are respectively connected and fixed with the coupling beam substructure. The cantilever end part of the connecting beam substructure is provided with a first end plate 2, and two ends of each connecting beam damper 1 are respectively welded and fixed on the first end plate 2. The construction of adopting the welding form to connect is comparatively simple, and the cost is lower, also can change even roof beam attenuator after shaking.
In the connecting beam substructure, the concrete side of the first end plate 2 can be provided with studs 8 at certain intervals, and the studs 8 mainly strengthen the connection between the first end plate and the concrete part; a second end plate 4 is arranged at a certain distance behind the first end plate 2; first steel ribs 3 are arranged between the first end plate 2 and the second end plate 4, and the cross sections of the first steel ribs 3 are the same as the cross sections of the coupling beam dampers 1 and the number of the coupling beam dampers is the same. As shown in fig. 3, the first steel rib 3 is a welded i-steel with a rib plate 7. As shown in fig. 1 and 2, the number of the first steel ribs 3 is 2, and the first steel ribs and the coupling beam damper 1 located on the other side of the first end plate 2 are respectively arranged at the same elevation relative to each other, that is, the positions and the cross-sectional shapes of the first steel ribs and the coupling beam damper relative to the first end plate 2 are mirror images.
In the connecting beam substructure, the rear side of the second end plate 4 is provided with a second steel rib 5, and the second steel rib 5 extends into the shear wall 9. As shown in fig. 4, the second steel skeleton 5 is preferably a single steel skeleton, here a welded i-steel. The second steel rib 5 is provided with the single steel rib, so that arrangement and construction of the steel bars inside the coupling beam are facilitated. Further, the width of the second steel rib 5 flange gradually decreases from the second end plate 4 to form a trapezoid transition section, the width of one end of the short side of the trapezoid transition section does not change and extends to the other end of the second steel rib 5 located in the shear wall 9, and the second steel rib 5 is provided with a head sealing plate 6 in the shear wall 9. As shown in fig. 2, the second steel rib 5 is a flange-widening welding i-steel.
The bottom main rib of the connecting beam is cut off by the connecting beam damper 1, and the contact part of the bottom main rib and the first end plate 2 is connected to the first end plate 2 by a sleeve; the part where the top main rib and the first end plate 2 are not intersected is directly closed at the end part of the connecting beam substructure. As shown in figure 1, the top major reinforcement of the coupling beam is located within the floor slab 10, which is headed directly at the end of the coupling beam substructure.
In this embodiment, the first end plate 2, the second end plate 4, the first steel rib 3, and the second steel rib 5 are made of high-strength steel, and the coupling beam damper 1 is made of low-yield-point high-ductility mild steel.
The utility model discloses a theory of operation does: under the action of a multi-earthquake, the coupling beam damper is not yielding generally, and appropriate lateral stiffness is provided for the integral structure; under the action of a fortification earthquake and a rare earthquake, the coupling beam damper mainly bears shearing force to yield, and reciprocating plastic deformation occurs under the action of a reciprocating earthquake. The metal plastic deformation dissipates part of the earthquake energy input to the integral structure, and increases the damping ratio of the structure, thereby reducing the energy input to other components of the integral structure and reducing the damage of the main structure. The internal force of the coupling beam damper 1 is transmitted to the coupling beam substructure through the first end plate 2 and then transmitted to the shear wall through the coupling beam substructure. The internal force of the coupled beam damper is increased slightly after yielding, the internal force transmitted to the coupled beam substructure is not increased too much, and the coupled beam substructure is provided with high-strength steel ribs and steel bars, so that the coupled beam substructure also keeps an elastic state under the action of rare earthquakes, plastic deformation is concentrated in the coupled beam damper with good plastic deformation performance, and the expected energy dissipation and shock absorption effects are exerted.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a connection structure of large-tonnage even roof beam attenuator which characterized in that: the multiple connecting beam dampers (1) are arranged in the middle of the connecting beam in parallel along the width direction of the connecting beam, and the connecting beam is divided into connecting beam substructures on two sides and the connecting beam damper (1) in the middle by the connecting beam dampers; two ends of each coupling beam damper (1) are respectively connected and fixed with the coupling beam substructure; the cantilever end part of the connecting beam substructure is provided with a first end plate (2), and two ends of each connecting beam damper (1) are respectively fixed on the first end plate (2); a second end plate (4) is arranged behind the first end plate (2) in the connecting beam substructure; a first steel rib (3) is arranged between the first end plate (2) and the second end plate (4), the cross section of the first steel rib (3) is the same as that of the beam connecting damper (1), and the beam connecting damper (1) and the first end plate (2) are arranged at the same elevation in a mirror image mode; in the connecting beam substructure, a second steel rib (5) is arranged at the rear side of the second end plate (4), and the second steel rib (5) extends into the shear wall (9).
2. The connection structure of a large-tonnage coupling beam damper according to claim 1, characterized in that: the two connecting beam dampers (1) are symmetrically arranged along the central line of the connecting beam.
3. The connection structure of a large-tonnage coupling beam damper according to claim 1, characterized in that: the second steel rib (5) is a single steel rib.
4. The connection structure of a large-tonnage coupling beam damper according to claim 1 or 3, characterized in that: the width of the flange of the second steel rib (5) is gradually reduced from the second end plate (4) to form a trapezoidal transition section, and the width of one end of the short side of the trapezoidal transition section is unchanged and extends to the other end, located in the shear wall (9), of the second steel rib (5).
5. The connection structure of a large-tonnage coupling beam damper according to claim 1, characterized in that: the coupling beam damper is a shear type mild steel damper.
6. The connection structure of a large-tonnage coupling beam damper according to claim 1, characterized in that: the connecting beam damper (1) and the first end plate are connected in a welding mode.
7. The connection structure of a large-tonnage coupling beam damper according to claim 1, characterized in that: the first end plate (2), the second end plate (4), the first steel rib (3), the second steel rib (5) adopt high-strength steel, and the coupling beam damper (1) adopts low-yield-point high-ductility mild steel.
8. The connection structure of a large-tonnage coupling beam damper according to claim 1, characterized in that: the main rib of the connecting beam is cut off by the connecting beam damper (1), and the intersection of the main rib at the bottom of the connecting beam substructure and the first end plate (2) is connected to the first end plate (2) by a sleeve; the main rib at the top of the beam connecting substructure and the first end plate (2) are not intersected and are directly connected with the end part of the beam connecting substructure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021786586.6U CN213087105U (en) | 2020-08-25 | 2020-08-25 | Connection structure of large-tonnage coupling beam damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021786586.6U CN213087105U (en) | 2020-08-25 | 2020-08-25 | Connection structure of large-tonnage coupling beam damper |
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| CN213087105U true CN213087105U (en) | 2021-04-30 |
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| CN202021786586.6U Active CN213087105U (en) | 2020-08-25 | 2020-08-25 | Connection structure of large-tonnage coupling beam damper |
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