CN106760853B - Beam column node dry connection fan-shaped viscoelastic damper - Google Patents

Beam column node dry connection fan-shaped viscoelastic damper Download PDF

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Publication number
CN106760853B
CN106760853B CN201710053071.1A CN201710053071A CN106760853B CN 106760853 B CN106760853 B CN 106760853B CN 201710053071 A CN201710053071 A CN 201710053071A CN 106760853 B CN106760853 B CN 106760853B
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fan
shaped
rigid
plate
unit
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CN106760853A (en
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龙帮云
徐赵东
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China University of Mining and Technology CUMT
Southeast University
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China University of Mining and Technology CUMT
Southeast University
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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
    • 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
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • 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
    • E04H9/023—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising rolling elements, e.g. balls, pins

Abstract

A beam column joint dry connection fan-shaped viscoelastic damper is characterized in that a composite energy consumption support body mainly comprises a plurality of elastic units, rigid plates, a positioning limiting device and a stretching device which are alternately overlapped, wherein each rigid unit comprises two fan-shaped rigid plates which are fixedly connected with a beam connecting plate and a column connecting plate respectively; the elastic unit consists of two fan-shaped elastic plates; fan-shaped buffer areas are respectively arranged between the left edge and the right edge of the rigid plate and the beam and column connecting plates; a strip-shaped buffer area is arranged in the middle of the fan-shaped rigid unit and the fan-shaped elastic unit, and two notches are respectively arranged at two ends of the strip-shaped buffer area; two through holes are formed in the fan-shaped rigid plate, and the stretching device is connected with the through holes; the outer rigid unit is provided with a pair of long round holes, and one side of the outer rigid unit is provided with a positioning concave platform; the limiting and positioning device is matched with the outer rigid unit for limiting and positioning; the damper can be deformed tangentially and radially. The damper has good damping performance and obvious energy consumption effect.

Description

Beam column node dry connection fan-shaped viscoelastic damper
Technical Field
The invention belongs to the field of engineering structures, relates to a beam-column joint connection, limiting and damping building component, and particularly relates to a beam-column joint dry connection fan-shaped viscoelastic damper.
Background
Under the action of earthquake, the frame structure needs to provide enough deformation capacity under the action of strong earthquake and wind load, the frame has good energy consumption capacity and deformation capacity, and the traditional frame structure depends on the self energy consumption and deformation providing of the structure, so that the capacity is limited. The reasonable and effective earthquake-proof way is to install an earthquake-proof device on the structure, and the earthquake-proof device and the structure jointly bear the earthquake action, namely, the earthquake energy is jointly stored and dissipated, so as to reduce and adjust the earthquake reaction of the structure. The damper is arranged for structural control, and energy consumption is an economical and feasible method.
The existing viscoelastic damper is generally a plate type or cylinder type or lead viscoelastic damper, the existing plate type or cylinder type damper is arranged below a frame beam or on the diagonal line of the frame beam column, a rigid support is adopted to connect the damper and a building structure, the support is a tension and compression member, the section is thick, the wall body is easy to crack when the damper is arranged in a wall, the damper occupies a large space when the damper is arranged indoors, and the performance of the viscoelastic damper is influenced to fluctuate in a large range due to the change of temperature when the damper is arranged outdoors.
The traditional lead viscoelastic fan-shaped damper is arranged at a corner of a frame beam-column joint, energy is consumed by means of deformation of the beam-column corner, the relative deformation value of the beam-column is small, the displacement angle limit value of the relative deformation of the beam-column under the action of rare earthquakes is 1/50, in order to increase the energy consumption capacity, a lead core is added on the basis of the viscoelastic damper, the damping effect is increased, and if the viscoelastic damper is adopted, the energy consumption is very limited. In addition, the conventional lead viscoelastic fan-shaped damper does not have a positioning function when being used for assembling a frame structure, and is deformed in an installation stage, so that the energy consumption capability is reduced. Moreover, the lead viscoelastic fan-shaped damper does not have the capacity of bearing the shearing force of the beam and the tension force possibly generated between the beam and the column; it also has no supporting ability and is not suitable for beam-column connection.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a beam column joint dry connection fan-shaped viscoelastic damper, which is not provided with a lead core, has good damping effect and obvious energy consumption effect, and in addition, has good beam shearing force bearing capacity in the use process, can bear the pulling force generated between beams and columns, has supporting capacity, and can be suitable for dry connection of the beams and columns.
In order to achieve the purpose, the invention provides a beam-column joint dry connection fan-shaped viscoelastic damper, which comprises a composite energy consumption support body, a beam connecting plate, a column connecting plate and a limiting and positioning device, wherein the lower end of the beam connecting plate and the left end of the column connecting plate are respectively provided with a positive U-shaped groove part I and an inverted U-shaped groove part II, the left side wall of the U-shaped groove part II is arranged in a notch of the U-shaped groove part I in a meshing manner, and the beam connecting plate and the column connecting plate have a rotation range of 80-100 degrees through the matching between the U-shaped groove part I and the U-shaped groove part II; a first through hole which is communicated up and down is formed in the middle of the left end of the column connecting plate; the composite energy consumption support body is arranged between the beam connecting plate and the column connecting plate, a fan-shaped notch is formed in the position, close to the intersection point of the beam connecting plate and the column connecting plate, of the composite energy consumption support body, and the composite energy consumption support body comprises a first rigid unit, a second elastic unit, a third fan-shaped rigid plate, a fourth elastic unit, a fifth rigid unit, a sixth elastic unit, a seventh fan-shaped rigid plate, an eighth elastic unit and a ninth rigid unit which are parallel to each other from front to back and are fixedly connected in sequence; the first rigid unit, the fifth rigid unit and the ninth rigid unit are respectively composed of a fan-shaped rigid plate A and a fan-shaped rigid plate B which are symmetrically arranged along an angular bisector of the beam connecting plate and the column connecting plate; the second elastic unit, the fourth elastic unit, the sixth elastic unit and the eighth elastic unit are all composed of a fan-shaped elastic plate A and a fan-shaped elastic plate B which are symmetrically arranged along an angular bisector of the beam connecting plate and the column connecting plate; in order to further improve the damping deformation effect, the fan-shaped elastic plate A and the fan-shaped elastic plate B are both made of viscoelastic materials; wherein the elastic plate is fixedly connected between the adjacent rigid plates in a vulcanization mode; the left end surface of the fan-shaped rigid plate A and the lower end surface of the fan-shaped rigid plate B in the first rigid unit, the fifth rigid unit and the ninth rigid unit are respectively and vertically fixedly connected with the right side surface of the beam connecting plate and the upper side surface of the column connecting plate; the second elastic unit, the third fan-shaped rigid plate, the fourth elastic unit, the sixth elastic unit, the seventh fan-shaped rigid plate and the eighth elastic unit are all arranged in the middle of the area between the beam connecting plate and the column connecting plate, and fan-shaped first fan-shaped buffer area and second fan-shaped buffer area are respectively reserved between the left edge and the right edge of the second elastic unit and between the beam connecting plate and the column connecting plate; strip-shaped buffer areas are arranged between the fan-shaped rigid plate A and the fan-shaped rigid plate B and between the fan-shaped elastic plate A and the fan-shaped elastic plate B; a first gap and a second gap are respectively arranged between the two close ends of the fan-shaped rigid plate A and the fan-shaped rigid plate B in the first rigid unit, the fifth rigid unit and the ninth rigid unit, and between the two close ends of the fan-shaped elastic plate A and the fan-shaped elastic plate B in the second elastic unit, the fourth elastic unit, the sixth elastic unit and the eighth elastic unit; the third fan-shaped rigid plate and the seventh fan-shaped rigid plate are respectively provided with a second through hole and a third through hole which are coaxially arranged at positions corresponding to the first notch and the second notch; the first rigid unit and the ninth rigid unit are provided with a pair of oblong holes which are oppositely distributed on the fan-shaped rigid plate A and the fan-shaped rigid plate B at the positions close to the outer ends; a pair of oblong holes in the front side surface of the first rigid unit and the rear side surface of the ninth rigid unit are respectively provided with positioning concave platforms communicated with the oblong holes at one sides far away from each other; the limiting positioning device comprises two pairs of limiting columns which are respectively matched with the first rigid unit and the ninth rigid unit, each limiting column is provided with a cylinder inserted into the long round hole and a limiting lug part which is arranged at the upper end of the cylinder and matched with the positioning concave table, and the two pairs of limiting columns are respectively fixedly connected with the third fan-shaped rigid plate and the seventh fan-shaped rigid plate; the size of the outer diameter of the limiting column is smaller than the size of the inner diameter of the long round hole.
In this technical scheme, be 90 degrees under normal condition between roof beam connecting plate and the post connecting plate, through the cooperation of U-shaped concave part one and U-shaped concave part two, when playing the damping effect, can provide the turned angle of certain limit between roof beam connecting plate and the post connecting plate, also can provide certain tensile bearing capacity, in addition, when doing the connection, the shearing force that the roof beam bore can directly transmit for the post connecting plate through the cooperation of U-shaped concave part one and U-shaped concave part two, and then with the atress transmission to the post on. The first rigid unit, the second elastic unit, the fourth elastic unit, the fifth rigid unit, the sixth elastic unit, the eighth elastic unit and the ninth rigid unit in the composite energy consumption support body are all provided with strip buffer zones required for deformation under the damping action, and a first fan-shaped buffer zone and a second fan-shaped buffer zone required for deformation under the damping action are respectively reserved between the two ends of the third fan-shaped rigid plate, the seventh fan-shaped rigid plate, the second fan-shaped rigid plate, the fourth fan-shaped rigid unit, the sixth elastic unit and the eighth elastic unit and between the beam connecting plate and the column connecting plate, so that when the beam and the column are deformed relatively, shearing force is acted on the composite energy consumption support body through acting on the beam connecting plate and the column connecting plate, therefore, when the composite energy consumption support body in the damper is deformed along with the shearing force, the fan-shaped rigid plates A and the fan-shaped rigid plates B in the first rigid unit, the fifth rigid unit and the ninth rigid unit move towards the direction close to the strip buffer zones, the third fan-shaped rigid plate is fixedly connected with the first rigid unit and the fifth rigid unit through the second elastic unit and the fourth elastic unit respectively, and the seventh fan-shaped rigid plate is fixedly connected with the fifth rigid unit and the ninth rigid unit through the sixth elastic unit and the eighth elastic unit respectively, so that the second, fourth, sixth and eighth elastic units can prevent the first, fifth and ninth rigid units from moving relative to the third and seventh fan-shaped rigid plates, and further the energy is consumed through the elastic units. A first fan-shaped buffer area and a second fan-shaped buffer area are arranged between the third fan-shaped rigid plate and the seventh fan-shaped rigid plate and the beam connecting plate and between the seventh fan-shaped rigid plate and the column connecting plate respectively, and the first fan-shaped buffer area and the second fan-shaped buffer area provide deformation spaces for displacement in the damping process of the beam connecting plate and the column connecting plate; the composite energy consumption support body is provided with a fan-shaped notch on one side of the intersection point of the beam connecting plate and the column connecting plate, when the composite energy consumption support body is under the action of a tension device or a steel wire rope tension force, the third fan-shaped rigid plate and the seventh fan-shaped rigid plate can move in a reciprocating mode in the radial direction of the fan-shaped notch to drive the elastic units connected with the third fan-shaped rigid plate and the seventh fan-shaped rigid plate to deform in the radial direction, the radial deformation capacity can reach the maximum deformation value of the elastic body, the maximum energy consumption is achieved, the radial deformation energy consumption capacity is obvious, and the damper can guarantee good energy consumption capacity under the condition that a lead core is not arranged. The arrangement of the limiting columns can ensure that the composite energy consumption supporting body cannot generate surface deformation in the front-back direction, the arrangement of the positioning device can ensure that relative displacement does not occur between the positioning limiting elastic body and the rigid plate so as to avoid generating primary strain in the production, transportation and installation processes of the damper, and meanwhile, the beam and the columns have supporting capacity before being completely connected and the elastic body can not bear strength. In addition, the outer diameter of the cylinder of the limiting column is smaller than the inner diameter of the long round hole, and the half of the difference value between the outer diameter of the limiting column and the inner diameter of the long round hole is the maximum deformation value allowed by the damper in the direction, so that the maximum deformation of the beam connecting plate and the column connecting plate can be limited through the limiting column, the energy consumption capacity can be improved, and the reliability of the damper can be improved.
Furthermore, in order to enable the size of the supporting member to be small, the supporting member cannot cause cracking of the wall body when being arranged in the wall body, and the indoor occupied space is small, the supporting member also comprises a stretching device, the stretching device is composed of a flexible pull rod or a steel wire rope and the steel wire rope, the steel wire rope is simultaneously connected with a third through hole in a seventh fan-shaped rigid plate of the third fan-shaped rigid plate after passing through the first through hole, and the flexible pull rod or the steel wire rope is simultaneously connected with a second through hole in the seventh fan-shaped rigid plate of the third fan-shaped rigid plate. The flexible pull rod or the steel wire rope provides radial tension far away from the intersection point of the beam connecting plate and the column connecting plate, and the steel wire rope provides radial tension towards the intersection point of the connecting plate and the column connecting plate. Because of the small diameter of the flexible pull rod and the steel wire rope, the damper can be directly installed in a wall body after being externally provided with a sleeve, does not occupy indoor space, can not damage the wall body due to the working of the damper during normal work, and can also be arranged in the indoor space. The steel wire rope can ensure that the column connecting plate, the third fan-shaped rigid plate and the seventh fan-shaped rigid plate have good connecting strength so as to have an energy consumption effect by friction with a reserved hole wall on the column when the damper deforms.
Furthermore, the limiting and positioning device also comprises two pairs of positioning blocks which are respectively matched with the first rigid unit and the ninth rigid unit, the positioning blocks are provided with sleeves which are inserted into the long round holes and are slidably sleeved outside the limiting columns, the cross sections of the sleeves are long round, and limiting plates which are arranged outside the sleeves and matched with the positioning concave tables; the positioning block is used for limiting and pressing the limiting column on the inner side of the positioning concave table; the positioning block is provided with a first threaded hole, the third fan-shaped rigid plate and the seventh fan-shaped rigid plate are provided with a second threaded hole at the position corresponding to the first threaded hole on the positioning block, the diameter of the first threaded hole is one grade larger than that of the second threaded hole, and the first threaded hole and the second threaded hole are connected through a bolt which is used for fixing the positioning block and the third fan-shaped rigid plate or the seventh fan-shaped rigid plate and matched with the second threaded hole. Therefore, a common bolt matched with the first threaded hole can be used as a pulling bolt to push the positioning block to be separated from the first rigid unit or the ninth rigid unit. The arrangement of the positioning block can limit the deformation of the damper in the shearing direction within a set range and also limit the radial deformation of the damper within a set range. The positioning block is connected to the third fan-shaped rigid plate and the seventh fan-shaped rigid plate through bolts, the positioning block can be matched with the limiting column to enable the damper to be more stable in production, transportation and installation processes, initial deformation is avoided, and after the damper is installed in place, the positioning block can be pushed away from the first rigid unit and the ninth rigid unit through the pulling bolt by taking the common bolt matched with the threaded hole as the pulling bolt, so that the damper can enter a working state rapidly.
Further, in order to improve the damping deformation effect, the third fan-shaped rigid plate, the seventh fan-shaped rigid plate, the fan-shaped rigid plate a, the fan-shaped rigid plate B, the fan-shaped elastic plate a and the fan-shaped elastic plate B are all fan-shaped concentric with the composite energy consumption support body.
Further, in order to facilitate the fixed connection with the beam and the column, the edges of the beam connecting plate and the column connecting plate are provided with a plurality of bolt holes.
The invention scheme II provides a beam-column joint dry connection fan-shaped viscoelastic damper, which comprises a composite energy consumption support body, a beam connecting plate, a column connecting plate and a limiting and positioning device, wherein the lower end of the beam connecting plate and the left end of the column connecting plate are respectively provided with a positive U-shaped groove part I and an inverted U-shaped groove part II, the left side wall of the U-shaped groove part II is arranged in a notch of the U-shaped groove part I in a meshed manner, and the beam connecting plate and the column connecting plate have a rotation range of 80-100 degrees due to the matching of the U-shaped groove part I and the U-shaped groove part II; a first through hole which is communicated up and down is formed in the middle of the left end of the column connecting plate; the composite energy consumption support body is arranged between the beam connecting plate and the column connecting plate, a fan-shaped notch is formed in the position, close to the intersection point of the beam connecting plate and the column connecting plate, of the composite energy consumption support body, and the composite energy consumption support body comprises a first rigid unit, a second elastic unit, a third fan-shaped rigid plate, a fourth elastic unit and a fifth rigid unit which are parallel to each other from front to back and are fixedly connected in sequence; the first rigid unit and the fifth rigid unit are respectively composed of a fan-shaped rigid plate A and a fan-shaped rigid plate B which are symmetrically arranged along an angular bisector of the beam connecting plate and the column connecting plate; the second elastic unit and the fourth elastic unit are respectively composed of a fan-shaped elastic plate A and a fan-shaped elastic plate B which are symmetrically arranged along the angular bisector of the beam connecting plate and the column connecting plate; in order to further improve the damping deformation effect, the fan-shaped elastic plate A and the fan-shaped elastic plate B are both made of viscoelastic materials; wherein the elastic plate is fixedly connected between the adjacent rigid plates in a vulcanization mode; the left end surface of the fan-shaped rigid plate A and the lower end surface of the fan-shaped rigid plate B in the first rigid unit and the fifth rigid unit are respectively and vertically and fixedly connected with the right side surface of the beam connecting plate and the upper side surface of the column connecting plate; the second elastic unit, the third fan-shaped rigid plate and the fourth elastic unit are arranged in the middle of the area between the beam connecting plate and the column connecting plate, and fan-shaped first fan-shaped buffer area and second fan-shaped buffer area are respectively reserved between the left edge and the right edge of the second elastic unit and between the beam connecting plate and the column connecting plate; strip-shaped buffer areas are arranged between the fan-shaped rigid plate A and the fan-shaped rigid plate B and between the fan-shaped elastic plate A and the fan-shaped elastic plate B; a first gap and a second gap are respectively arranged between the two close ends of the fan-shaped rigid plate A and the fan-shaped rigid plate B in the first rigid unit and the fifth rigid unit and between the two close ends of the fan-shaped elastic plate A and the fan-shaped elastic plate B in the second elastic unit and the fourth elastic unit; the third fan-shaped rigid plate is provided with a second through hole and a third through hole at positions corresponding to the first notch and the second notch respectively; the first rigid unit and the fifth rigid unit are provided with a pair of oblong holes which are oppositely distributed on the fan-shaped rigid plate A and the fan-shaped rigid plate B at the positions close to the outer ends; a pair of oblong holes in the front side surface of the first rigid unit and the rear side surface of the fifth rigid unit are respectively provided with positioning concave tables communicated with the oblong holes at one sides far away from each other; the limiting positioning device comprises two pairs of limiting columns which are respectively matched with the first rigid unit and the fifth rigid unit, each limiting column is provided with a cylinder inserted into the long round hole and a limiting lug part which is arranged at the upper end of the cylinder and matched with the positioning concave table, and the two pairs of limiting columns are fixedly connected with the third fan-shaped rigid plate; the size of the outer diameter of the limiting column is smaller than the size of the inner diameter of the long round hole.
In this technical scheme, be 90 degrees under normal condition between roof beam connecting plate and the post connecting plate, through the cooperation of U-shaped concave part one and U-shaped concave part two, when playing the damping effect, can provide the turned angle of certain limit between roof beam connecting plate and the post connecting plate, also can provide certain tensile bearing capacity, in addition, when doing the connection, the shearing force that the roof beam bore can directly transmit for the post connecting plate through the cooperation of U-shaped concave part one and U-shaped concave part two, and then with the atress transmission to the post on. The first, fifth and second and fourth elastic units in the composite energy consumption support body are all provided with strip buffer zones required for deformation under the damping action, and a first sector buffer zone and a second sector buffer zone required for deformation under the damping action are respectively reserved between the two ends of the second, fourth and third sector rigid plates and between the beam connecting plate and the column connecting plate, so that when relative deformation occurs between the beam and the column, shearing force is applied to the composite energy consumption support body by acting on the beam connecting plate and the column connecting plate, therefore, when the composite energy consumption support body in the damper deforms along with the shearing force, the sector rigid plate A and the sector rigid plate B in the first and fifth rigid units move towards the direction close to the strip buffer zones, and the third sector rigid plate is respectively and fixedly connected with the first rigid unit and the fifth rigid unit through the second elastic unit and the fourth elastic unit, in this way, the second and fourth elastic units prevent the first and fifth rigid units from moving relative to the third fan-shaped rigid plate, and further, energy is consumed by the elastic units. The third fan-shaped rigid plate, the second fan-shaped buffer area and the fourth fan-shaped buffer area are arranged between the beam connecting plate and the column connecting plate respectively, the first fan-shaped buffer area and the second fan-shaped buffer area provide deformation space for displacement in the damping process of the beam connecting plate and the column connecting plate, a fan-shaped notch is formed in one side of the intersection point of the beam connecting plate and the column connecting plate of the composite energy consumption supporting body, when the composite energy consumption supporting body is under the action of a stretching device or a steel wire rope pulling force, the third fan-shaped rigid plate and the seventh fan-shaped rigid plate can move in a reciprocating mode along the radial direction of the fan-shaped notch to drive the elastic units connected with the third fan-shaped rigid plate to deform in the radial direction, the radial deformation capacity can reach the maximum deformation value of the elastic body, the maximum energy consumption is achieved, the radial deformation energy consumption capacity is obvious, and the damper can guarantee good energy consumption capacity under the condition that a lead core is not arranged. The arrangement of the limiting columns can ensure that the composite energy consumption supporting body cannot generate surface deformation in the front-back direction, the arrangement of the positioning device can ensure that relative displacement between the elastic body and the rigid plate is not generated in the production, transportation and installation processes of the damper so as to avoid primary strain, and meanwhile, the beam and the columns have supporting capacity before being completely connected, and the elastic body can not bear strength. In addition, the outer diameter of the cylinder of the limiting column is smaller than the inner diameter of the long round hole, and the half of the difference value between the outer diameter of the limiting column and the inner diameter of the long round hole is the maximum deformation value allowed by the damper in the direction, so that the maximum deformation of the beam connecting plate and the column connecting plate can be limited through the limiting column, the energy consumption capacity can be improved, and the reliability of the damper can be improved.
Furthermore, in order to enable the size of the supporting member to be small, the supporting member cannot cause cracking of the wall body when being arranged in the wall body, and the indoor occupied space is small, the supporting member also comprises a stretching device, the stretching device is composed of a flexible pull rod or a steel wire rope and the steel wire rope, the steel wire rope is connected with a third through hole in the third fan-shaped rigid plate through the first through hole, and the flexible pull rod or the steel wire rope is connected with a second through hole in the third fan-shaped rigid plate. The flexible pull rod or the steel wire rope provides radial tension far away from the intersection point of the beam connecting plate and the column connecting plate, and the steel wire rope provides radial tension towards the intersection point of the connecting plate and the column connecting plate. Because of the small diameter of the flexible pull rod and the steel wire rope, the damper can be directly installed in a wall body after being externally provided with a sleeve, does not occupy indoor space, can not damage the wall body due to the working of the damper during normal work, and can also be arranged in the indoor space. The steel wire rope can ensure that the column connecting plate and the third fan-shaped rigid plate have good connecting strength so as to play a role in dissipating energy through friction with a reserved hole wall on the column when the damper deforms.
Furthermore, the limiting and positioning device also comprises two pairs of positioning blocks which are respectively matched with the first rigid unit and the fifth rigid unit, the positioning blocks are provided with sleeves which are inserted into the long round holes and slidably sleeved outside the limiting columns, the cross sections of the sleeves are long round, and limiting plates which are arranged outside the sleeves and matched with the positioning concave tables; the positioning block is used for limiting and pressing the limiting column on the inner side of the positioning concave table; the positioning block is provided with a first threaded hole, a second threaded hole is formed in the position, corresponding to the first threaded hole, of the third fan-shaped rigid plate, the diameter of the first threaded hole is larger than that of the second threaded hole by one grade, and the first threaded hole and the second threaded hole are connected through a bolt which is used for fixing the positioning block and the third fan-shaped rigid plate and matched with the second threaded hole. Therefore, a common bolt matched with the first threaded hole can be used as a pulling bolt to push the positioning block to be separated from the first rigid unit or the ninth rigid unit. The arrangement of the positioning block can limit the deformation of the damper in the shearing direction within a set range and also limit the radial deformation of the damper within a set range. The positioning block is connected to the third fan-shaped rigid plate through the bolt, the positioning block can be matched with the limiting column to enable the damper to be more stable in production, transportation and installation processes, initial deformation is avoided, and after the damper is installed in place, the positioning block can be pushed and separated from the first rigid unit and the ninth rigid unit through the pulling bolt by taking the common bolt matched with the threaded hole I as the pulling bolt, so that the damper can be rapidly in a working state.
Further, in order to improve the damping deformation effect, the third fan-shaped rigid plate, the fan-shaped rigid plate A, the fan-shaped rigid plate B, the fan-shaped elastic plate A and the fan-shaped elastic plate B are all fan-shaped concentric with the composite energy consumption support body.
Further, in order to facilitate the fixed connection with the beam and the column, the edges of the beam connecting plate and the column connecting plate are provided with a plurality of bolt holes.
Drawings
FIG. 1 is a schematic structural diagram of a first technical solution or a second technical solution in the invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a perspective view of FIG. 1;
fig. 4 is a schematic structural view of the first rigid unit or the ninth rigid unit in the first embodiment of the present invention, or a schematic structural view of the first rigid unit or the fifth rigid unit in the second embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a fifth rigid unit in the first embodiment of the present invention;
fig. 6 is a schematic structural diagram of an eighth elastic unit of the second elastic unit in the first embodiment of the present invention, or a schematic structural diagram of the second elastic unit or the fourth elastic unit in the second embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a fourth elastic unit or a sixth elastic unit in the first embodiment of the present invention;
fig. 8 is a schematic structural view of a third fan-shaped rigid plate or a seventh fan-shaped rigid plate in the first technical solution of the present invention, or a schematic structural view of a third fan-shaped rigid plate in the second technical solution of the present invention;
FIG. 9 is a schematic view of a positioning block according to the present invention;
FIG. 10 is a schematic view of the structure of the spacing post of the present invention;
FIG. 11 is a perspective view of a second embodiment of the present invention;
FIG. 12 is a top view of FIG. 10;
FIG. 13 is an assembly view of the present invention;
FIG. 14 is an assembly view of the present invention;
FIG. 15 is an assembly view of the present invention;
fig. 16 is an assembly view of the present invention.
In the figure: 1. a composite energy consumption support body, 2, a flexible pull rod or a steel wire rope, 3, a beam connecting plate, 4, a column connecting plate, 5, a first U-shaped groove part I, 6, a second U-shaped groove part II, 7, a first through hole, 8, a first rigid unit, 9, a second elastic unit, 10, a third fan-shaped rigid plate, 11, a fourth elastic unit, 12, a fifth rigid unit, 13, a sixth elastic unit, 14, a seventh fan-shaped rigid plate, 15, an eighth elastic unit, 16, a ninth rigid unit, 17, a fan-shaped rigid plate A, 18, a fan-shaped rigid plate B, 19, a fan-shaped elastic plate A, 20, a fan-shaped elastic plate B, 21, a first fan-shaped buffer area, 22, a second fan-shaped buffer area, 23, a strip-shaped buffer area, 24, a long circular hole, 25, a positioning concave table, 26, a positioning block, 27, a limiting column, 28, a cylinder, 29, a limiting lug, 30, a sleeve, 31 and a limiting plate, 32. bolt holes 33, fan-shaped notches 34, first threaded holes 35, first notches 36, second through holes 37, second notches 38, third through holes 39, flexible rod members or steel wire ropes 40, beams 41, columns 42 and second threaded holes.
Detailed Description
The invention will be further described with reference to figures 1 to 16.
The invention provides a beam-column joint dry-connection fan-shaped viscoelastic damper, which comprises a composite energy-consumption support body 1, a beam connecting plate 3, a column connecting plate 4 and a limiting and positioning device, wherein the lower end of the beam connecting plate 3 and the left end of the column connecting plate 4 are respectively provided with a U-shaped groove part I5 and an inverted U-shaped groove part II 6, the left side wall of the U-shaped groove part II 6 is arranged in a notch of the U-shaped groove part I5 in an occluded manner, the matching between the U-shaped groove part I5 and the U-shaped groove part II 6 enables the beam connecting plate 3 and the column connecting plate 4 to have a rotation range of 80-100 degrees, namely the maximum included angle which can be reached in the process of rotationally matching the beam connecting plate 3 and the column connecting plate 4 through the U-shaped groove part I5 and the U-shaped groove part II 6 is 100 degrees, and the minimum included angle which can be reached in the process of rotationally matching the beam connecting plate 3 and the column connecting plate 4 through the U-shaped groove part I5 and the U-shaped groove part II 6 is 80 degrees, the included angle between the beam connecting plate 3 and the column connecting plate 4 can be changed within the range of 80 degrees to 100 degrees; a first through hole 7 which is communicated up and down is formed in the middle of the left end of the column connecting plate 4; the composite energy consumption support body 1 is arranged between the beam connecting plate 3 and the column connecting plate 4, a fan-shaped notch 33 is formed in the position, close to the intersection point of the beam connecting plate 3 and the column connecting plate 4, of the composite energy consumption support body 1, and the composite energy consumption support body 1 comprises a first rigid unit 8, a second elastic unit 9, a third fan-shaped rigid plate 10, a fourth elastic unit 11, a fifth rigid unit 12, a sixth elastic unit 13, a seventh fan-shaped rigid plate 14, an eighth elastic unit 15 and a ninth rigid unit 16 which are parallel to each other from front to back and are fixedly connected in sequence; the first rigid unit 8, the fifth rigid unit 12 and the ninth rigid unit 16 are all composed of fan-shaped rigid plates A17 and B18 which are symmetrically arranged along the angle bisector of the beam connecting plate 3 and the column connecting plate 4; the second elastic unit 9, the fourth elastic unit 11, the sixth elastic unit 13 and the eighth elastic unit 15 are all composed of a fan-shaped elastic plate A19 and a fan-shaped elastic plate B20 which are symmetrically arranged along the angular bisector of the beam connecting plate 3 and the column connecting plate 4; in order to further improve the damping deformation effect, the fan-shaped elastic plate A and the fan-shaped elastic plate B are both made of viscoelastic materials, the elastic plates can be made of rubber, and other viscoelastic materials with better damping effect can be selected; wherein the elastic plate is fixedly connected between the adjacent rigid plates in a vulcanization mode; the left end face of the fan-shaped rigid plate a17 and the lower end face of the fan-shaped rigid plate B18 in the first rigid unit 8, the fifth rigid unit 12 and the ninth rigid unit 16 are respectively and vertically fixedly connected with the right side face of the beam connecting plate 3 and the upper side face of the column connecting plate 4; the second elastic unit 9, the third fan-shaped rigid plate 10, the fourth elastic unit 11, the sixth elastic unit 13, the seventh fan-shaped rigid plate 14 and the eighth elastic unit 15 are all arranged in the middle of the area between the beam connecting plate 3 and the column connecting plate 4, and fan-shaped first fan-shaped buffer areas 21 and second fan-shaped buffer areas 22 are respectively reserved between the left edge and the right edge of the second elastic unit and between the beam connecting plate 3 and the column connecting plate 4; strip-shaped buffer zones 23 are arranged between the fan-shaped rigid plate A17 and the fan-shaped rigid plate B18 and between the fan-shaped elastic plate A19 and the fan-shaped elastic plate B20; a first notch 35 and a second notch 37 are respectively arranged between the two close ends of the fan-shaped rigid plate a17 and the fan-shaped rigid plate B18 in the first rigid unit 8, the fifth rigid unit 12 and the ninth rigid unit 16 and between the two close ends of the fan-shaped elastic plate a19 and the fan-shaped elastic plate B20 in the second elastic unit 9, the fourth elastic unit 11, the sixth elastic unit 13 and the eighth elastic unit 15, wherein the second notch 37 is arranged close to the first through hole 7; the third fan-shaped rigid plate 10 and the seventh fan-shaped rigid plate 14 are respectively provided with a second through hole 36 and a third through hole 38 which are coaxially arranged at positions corresponding to the first notch 35 and the second notch 37; the first rigid unit 8 and the ninth rigid unit 16 are provided with a pair of oblong holes 24 which are oppositely distributed on the fan-shaped rigid plates A17 and B18 at the positions close to the outer ends; a pair of oblong holes 24 on the front side surface of the first rigid unit 8 and the rear side surface of the ninth rigid unit 16 are respectively provided with positioning concave platforms 25 communicated with the oblong holes 24 on the sides far away from each other; the limiting and positioning device comprises two pairs of limiting columns 27 which are respectively matched with the first rigid unit 8 and the ninth rigid unit 16, each limiting column 27 is provided with a cylinder 28 inserted into the long circular hole 24 and a limiting lug 29 which is arranged at the upper end of the cylinder 28 and is matched with the positioning concave platform 25, and the two pairs of limiting columns 27 are respectively fixedly connected with the third fan-shaped rigid plate 10 and the seventh fan-shaped rigid plate 14; the size of the outer diameter of the limiting column 27 is smaller than the size of the inner diameter of the long round hole 24. Preferably, the first notch 35 and the second notch 37 are both U-shaped. Being 90 degrees under normal condition between roof beam connecting plate 3 and the post connecting plate 4, through the cooperation of U-shaped concave part one 5 and U-shaped concave part two 6, when playing the damping effect, can provide the turned angle of certain limit between roof beam connecting plate 3 and the post connecting plate 4, also can provide certain tensile bearing capacity, in addition, when doing the connection, the shear force that roof beam 40 bore can directly transmit for post connecting plate 4 through the cooperation of U-shaped concave part one 5 and U-shaped concave part two 6, and then transmit the atress to post 41 on. The first rigid unit 8, the second elastic unit 9, the fourth elastic unit 11, the fifth rigid unit 12, the sixth elastic unit 13, the eighth elastic unit 15 and the ninth rigid unit 16 in the composite energy dissipation support body 1 are all provided with strip-shaped buffer zones 23 required for deformation under damping action, and first fan-shaped buffer zones 21 and second fan-shaped buffer zones 22 required for deformation under damping action are respectively reserved between the two ends of the third fan-shaped rigid plate, the seventh fan-shaped rigid plate and the second, fourth, sixth and eighth elastic units as well as between the beam connecting plate 3 and the column connecting plate 4, so that when relative deformation occurs between the beam 40 and the column 41, a shearing force acts on the composite energy dissipation support body 1 by acting on the beam connecting plate 3 and the column connecting plate 4, therefore, when the composite energy dissipation support body 1 deforms along with the shearing force, the fan-shaped rigid plates a17 and the fan-shaped rigid plates B18 in the first, fifth and ninth rigid units move towards the direction close to the strip-shaped buffer zones 23, and the third fan-shaped rigid plate 10 is fixedly connected with the first rigid unit 8 and the fifth rigid unit 12 through the second elastic unit 9 and the fourth elastic unit 11, respectively, and the seventh fan-shaped rigid plate 14 is fixedly connected with the fifth rigid unit 12 and the ninth rigid unit 16 through the sixth elastic unit 14 and the eighth elastic unit 15, respectively, so that the second, fourth, sixth and eighth elastic units prevent the first, fifth and ninth rigid units from moving relative to the third and seventh fan-shaped rigid plates, and further consume energy through the elastic units. A first fan-shaped buffer area 21 and a second fan-shaped buffer area 22 are arranged between the third fan-shaped rigid plate and the seventh fan-shaped rigid plate and the beam connecting plate 3 and the column connecting plate 4 respectively, and the first fan-shaped buffer area 21 and the second fan-shaped buffer area 22 provide deformation space for displacement in the damping process of the beam connecting plate 3 and the column connecting plate 4; the composite energy consumption support body 1 is provided with the fan-shaped notch 33 on one side of the intersection point of the beam connecting plate 3 and the column connecting plate 4, when the composite energy consumption support body is under the action of a stretching device or a steel wire rope pulling force, the third fan-shaped rigid plate and the seventh fan-shaped rigid plate can move in a reciprocating mode along the radial direction of the fan-shaped notch 33 to drive the elastic units connected with the third fan-shaped rigid plate to deform in the radial direction, the radial deformation capacity can reach the maximum deformation value of the elastic body, the maximum energy consumption is achieved, the radial deformation energy consumption capacity is obvious, and the damper can guarantee good energy consumption capacity under the condition that a lead core is not arranged. The limiting column 27 can ensure that the composite energy consumption support body 1 cannot generate surface deformation in the front-back direction, the positioning device can ensure that relative displacement does not occur between the positioning limiting elastic body and the rigid plate so as to avoid generating primary strain in the production, transportation and installation processes of the damper, and meanwhile, the beam 40 and the column 41 have supporting capacity before being completely connected and the elastic body can not bear force. In addition, the outer diameter of the cylinder 28 of the limiting column 27 is smaller than the inner diameter of the long round hole 24, and half of the difference value between the outer diameter of the limiting column 27 and the inner diameter of the long round hole 24 is the maximum deformation value allowed by the damper in the direction, so that the maximum deformation of the beam connecting plate 3 and the column connecting plate 4 can be limited through the limiting column 27, the energy consumption capacity can be improved, and the reliability of the damper can be improved.
In order to enable the size of the supporting member to be small, the supporting member cannot cause cracking of the wall when being arranged in the wall, and the occupied space of the supporting member arranged indoors is small, the supporting member further comprises a stretching device, the stretching device is composed of a flexible pull rod or a steel wire rope 2 and a steel wire rope 39, the steel wire rope 39 passes through the first through hole 7 and then is simultaneously connected with the third through hole 38 of the third fan-shaped rigid plate 10 and the seventh fan-shaped rigid plate 14, the other end of the steel wire rope 39 is connected with the frame column 41, and the flexible pull rod or the steel wire rope 2 is simultaneously connected with the second through hole 36 of the third fan-shaped rigid plate 10 and the seventh fan-shaped rigid plate 14. Flexible tension rods or wire ropes 2 provide a radial tension away from the intersection of the beam connection plate 3 and the column connection plate 4 and wire ropes 39 provide a radial tension towards the intersection of the connection plate 3 and the column connection plate 4. Because of the small diameter of the flexible pull rod and the steel wire rope, the damper can be directly installed in a wall body after being externally provided with a sleeve, does not occupy indoor space, can not damage the wall body due to the working of the damper during normal work, and can also be arranged in the indoor space. The steel wire rope 39 can ensure that the column connecting plate 4 has good connection strength with the third fan-shaped rigid plate 10 and the seventh fan-shaped rigid plate 14, so that the damper can dissipate energy through friction with the wall of a reserved hole on the column 41 when the damper deforms.
The limiting and positioning device further comprises two pairs of positioning blocks 26 which are respectively matched with the first rigid unit 8 and the ninth rigid unit 16, wherein each positioning block 26 is provided with a sleeve 30 which is inserted into the long round hole 24 and is slidably sleeved outside the limiting column 27, the cross section of each sleeve is long round, and a limiting plate 31 which is arranged outside each sleeve 30 and is matched with the corresponding positioning concave table 25; the positioning block 26 limits and presses the limiting column 27 on the inner side of the positioning concave platform 25; the positioning block 26 is provided with a first threaded hole 34, the third fan-shaped rigid plate 10 and the seventh fan-shaped rigid plate 14 are provided with a second threaded hole 42 at a position corresponding to the first threaded hole 34 on the positioning block 26, the first threaded hole 34 is larger than the second threaded hole 42 in diameter by one grade, and the first threaded hole 34 and the second threaded hole 42 are connected through a bolt matched with the second threaded hole 42 and used for fixing the positioning block 26 and the third fan-shaped rigid plate 10 or the seventh fan-shaped rigid plate 14. Thus, a conventional bolt matching the first threaded hole 34 can be used as a pull-up bolt to push the positioning block 26 off the first rigid unit 8 or the ninth rigid unit 16. The positioning block 26 is provided not only to limit the deformation of the damper in the shearing direction within a set range, but also to limit the radial deformation of the damper within a set range. The positioning block 26 is connected to the third fan-shaped rigid plate 10 and the seventh fan-shaped rigid plate 14 through bolts, can be matched with the limiting columns to enable the damper to be more stable in production, transportation and installation processes, and avoid initial deformation, and after the damper is installed in place, the positioning block 26 can be pushed away from the first rigid unit 8 and the ninth rigid unit 16 through the pulling bolt by taking a common bolt matched with the first threaded hole 34 as a pulling bolt, so that the damper can be rapidly in a working state.
In order to improve the effect of damping deformation, the third fan-shaped rigid plate 10, the seventh fan-shaped rigid plate 14, the fan-shaped rigid plate a17, the fan-shaped rigid plate B18, the fan-shaped elastic plate a19 and the fan-shaped elastic plate B are all fan-shaped concentric with the composite dissipative support body 1.
To facilitate the fixed connection with the beam 40 and the column 41, the edges of the beam connecting plate 3 and the column connecting plate 4 are provided with a plurality of bolt holes 32.
The first, fifth and ninth rigid units and the third and seventh fan-shaped rigid plates are preferably made of high hardness steel.
The invention scheme II provides a beam-column joint dry-connection fan-shaped viscoelastic damper, which comprises a composite energy-consumption support body 1, a beam connecting plate 3, a column connecting plate 4 and a limiting and positioning device, wherein the lower end of the beam connecting plate 3 and the left end of the column connecting plate 4 are respectively provided with a U-shaped groove part I5 which is arranged in a positive position and an inverted U-shaped groove part II 6, the left side wall of the U-shaped groove part II 6 is arranged in a notch of the U-shaped groove part I5 in a meshing manner, the U-shaped groove part I5 and the U-shaped groove part II 6 are matched to ensure that a rotation range of 80-100 degrees is formed between the beam connecting plate 3 and the column connecting plate 4, namely the maximum included angle which can be reached in the process of rotationally matching the beam connecting plate 3 and the column connecting plate 4 through the U-shaped groove part I5 and the U-shaped groove part II 6 is 100 degrees, and the minimum included angle which can be reached in the process of rotationally matching the beam connecting plate 3 and the column connecting plate 4 through the U-shaped groove part I5 and the U-shaped groove part II 6 is 80 degrees, the included angle between the beam connecting plate 3 and the column connecting plate 4 can be changed within the range of 80 degrees to 100 degrees, when the beam connecting plate 3 and the column connecting plate 4 reach the maximum or minimum included angle position, the right side surface of the left side wall of the U-shaped groove portion I5 can limit the left side surface of the left side wall of the U-shaped groove portion II 6, and meanwhile, the left side surface of the right side wall of the U-shaped groove portion II 6 can limit the right side surface of the right side wall of the U-shaped groove portion I5; a first through hole 7 which is communicated up and down is formed in the middle of the left end of the column connecting plate 4; the composite energy consumption support body 1 is arranged between the beam connecting plate 3 and the column connecting plate 4, a fan-shaped notch 33 is formed in the position, close to the intersection point of the beam connecting plate 3 and the column connecting plate 4, of the composite energy consumption support body 1, and the composite energy consumption support body 1 comprises a first rigid unit 8, a second elastic unit 9, a third fan-shaped rigid plate 10, a fourth elastic unit 11 and a fifth rigid unit 12 which are parallel to each other from front to back and are fixedly connected in sequence; the first rigid unit 8 and the fifth rigid unit 12 are both composed of a fan-shaped rigid plate A17 and a fan-shaped rigid plate B18 which are symmetrically arranged along the angular bisector of the beam connecting plate 3 and the column connecting plate 4; the second elastic unit 9 and the fourth elastic unit 11 are both composed of a fan-shaped elastic plate A19 and a fan-shaped elastic plate B20 which are symmetrically arranged along the angular bisector of the beam connecting plate 3 and the column connecting plate 4; in order to further improve the damping deformation effect, the fan-shaped elastic plate A19 and the fan-shaped elastic plate B20 are both made of viscoelastic materials, the elastic plates can be made of rubber, and other viscoelastic materials with better damping effect can be selected; wherein the elastic plate is fixedly connected between the adjacent rigid plates in a vulcanization mode; the left end face of the fan-shaped rigid plate A17 and the lower end face of the fan-shaped rigid plate B18 in the first rigid unit 8 and the fifth rigid unit 12 are respectively and vertically fixedly connected with the right side face of the beam connecting plate 3 and the upper side face of the column connecting plate 4; the second elastic unit 9, the third fan-shaped rigid plate 10 and the fourth elastic unit 11 are all arranged in the middle of the area between the beam connecting plate 3 and the column connecting plate 4, and fan-shaped first fan-shaped buffer areas 21 and second fan-shaped buffer areas 22 are respectively reserved between the left edge and the right edge of the second elastic unit and between the beam connecting plate 3 and the column connecting plate 4; strip-shaped buffer zones 23 are arranged between the fan-shaped rigid plate A17 and the fan-shaped rigid plate B18 and between the fan-shaped elastic plate A19 and the fan-shaped elastic plate B20; a first notch 35 and a second notch 37 are respectively arranged between the two close ends of the fan-shaped rigid plate A17 and the fan-shaped rigid plate B18 in the first rigid unit 8 and the fifth rigid unit 12 and between the two close ends of the fan-shaped elastic plate A19 and the fan-shaped elastic plate B20 in the second elastic unit 9 and the fourth elastic unit 11, wherein the second notch 37 is arranged close to the first through hole 7; the third fan-shaped rigid plate 10 is provided with a second through hole 36 and a third through hole 38 at positions corresponding to the first notch 35 and the second notch 37, respectively; the first rigid unit 8 and the fifth rigid unit 12 are provided with a pair of oblong holes 24 which are oppositely distributed on the fan-shaped rigid plate A17 and the fan-shaped rigid plate B18 at the positions close to the outer ends; a pair of oblong holes 24 on the front side surface of the first rigid unit 8 and the rear side surface of the fifth rigid unit 12 are respectively provided with positioning concave platforms 25 communicated with the oblong holes 24 on the sides far away from each other; the limiting and positioning device comprises two pairs of limiting columns 27 which are respectively matched with the first rigid unit 8 and the fifth rigid unit 12, each limiting column 27 is provided with a cylinder 28 inserted into the long circular hole 24 and a limiting lug 29 which is arranged at the upper end of the cylinder 28 and matched with the positioning concave platform 25, and the two pairs of limiting columns 27 are fixedly connected with the third fan-shaped rigid plate 10; the size of the outer diameter of the limiting column 27 is smaller than the size of the inner diameter of the long round hole 24. Preferably, the first notch 35 and the second notch 37 are both U-shaped.
Being 90 degrees under normal condition between roof beam connecting plate 3 and the post connecting plate 4, through the cooperation of U-shaped concave part one 5 and U-shaped concave part two 6, when playing the damping effect, can provide the turned angle of certain limit between roof beam connecting plate 3 and the post connecting plate 5, also can provide certain tensile bearing capacity, in addition, when doing the connection, the shear force that roof beam 40 bore can directly transmit for post connecting plate 4 through the cooperation of U-shaped concave part one 5 and U-shaped concave part two 6, and then transmit the atress to post 41 on. The first, fifth and second and fourth elastic units in the composite energy consumption support body 1 are all provided with strip buffer zones 23 required for deformation under damping action, and a first fan-shaped buffer zone 21 and a second fan-shaped buffer zone 22 required for deformation under damping action are respectively reserved between the two ends of the second, fourth and third fan-shaped rigid plates and the beam connecting plate 3 and the column connecting plate 4, so that when relative deformation occurs between the beam 40 and the column 41, shearing force is applied to the composite energy consumption support body 1 by acting on the beam connecting plate 3 and the column connecting plate 4, therefore, when the composite energy consumption support body 1 in the damper deforms along with the shearing force, the fan-shaped rigid plates a17 and B18 in the first and fifth rigid units move towards the strip buffer zones 23, and the third fan-shaped rigid plate 10 is fixedly connected with the first rigid unit 8 and the fifth rigid unit 12 through the second elastic unit 9 and the fourth elastic unit 11, in this way, the second and fourth elastic units prevent the first and fifth rigid units from moving relative to the third fan-shaped rigid plate, and further, energy is consumed by the elastic units. A first fan-shaped buffer area 21 and a second fan-shaped buffer area 22 are respectively arranged between the third fan-shaped rigid plate 10, the second elastic unit and the fourth elastic unit and the beam connecting plate 3 and the column connecting plate 4, the first fan-shaped buffer area 21 and the second fan-shaped buffer area 22 provide deformation space for displacement in the damping process of the beam connecting plate 3 and the column connecting plate 4, a fan-shaped notch 33 is arranged on one side of the intersection point of the beam connecting plate 3 and the column connecting plate 4 of the composite energy dissipation support body 1, when the stretching device or the steel wire rope is under the action of the stretching force, the third and seventh fan-shaped rigid plates can reciprocate along the radial direction of the fan-shaped notch 33 to drive the elastic units connected with the third and seventh fan-shaped rigid plates to deform in the radial direction, the radial deformation capacity can reach the maximum deformation value of the elastic body, therefore, the maximum energy consumption is achieved, the radial deformation energy consumption capability is obvious, and the damper can ensure good energy consumption capability under the condition that a lead core is not arranged. The limiting columns 27 can ensure that the composite energy consumption support body 1 cannot generate surface deformation in the front-back direction, the positioning devices can ensure that relative displacement between the elastic body and the rigid plate is not generated so as to avoid primary strain in the production, transportation and installation processes of the damper, and meanwhile, the beam 40 and the columns 41 have supporting capacity before being completely connected and the elastic body can not bear force. In addition, the outer diameter of the cylinder 28 of the limiting column 27 is smaller than the inner diameter of the long round hole 24, and half of the difference value between the outer diameter of the limiting column 27 and the inner diameter of the long round hole 24 is the maximum deformation value allowed by the damper in the direction, so that the maximum deformation of the beam connecting plate 3 and the column connecting plate 4 can be limited through the limiting column 27, the energy consumption capacity can be improved, and the reliability of the damper can be improved.
In order to enable the size of the supporting member to be small, the supporting member cannot cause cracking of the wall body when being arranged in the wall body, and the occupied space of the supporting member arranged indoors is small, the supporting member further comprises a stretching device, the stretching device is composed of a flexible pull rod or a steel wire rope 2 and a steel wire rope 39, the steel wire rope 39 is connected with a third through hole 38 on the third fan-shaped rigid plate 10 after passing through the first through hole 7, the other end of the steel wire rope 39 is connected with a frame column 41, and the flexible pull rod or the steel wire rope 2 is connected with a second through hole 36 on the third fan-shaped rigid plate 10. Flexible tension rods or wire ropes 2 provide a radial tension away from the intersection of the beam connection plate 3 and the column connection plate 4 and wire ropes 39 provide a radial tension towards the intersection of the connection plate 3 and the column connection plate 4. Because of the small diameter of the flexible pull rod and the steel wire rope, the damper can be directly installed in a wall body after being externally provided with a sleeve, does not occupy indoor space, can not damage the wall body due to the working of the damper during normal work, and can also be arranged in the indoor space. The steel wire rope 39 can ensure that the column connecting plate 4 and the third fan-shaped rigid plate 10 have good connection strength, so that the damper can perform an energy consumption function by rubbing with a reserved hole wall on the column 41 when the damper deforms.
The limiting and positioning device further comprises two pairs of positioning blocks 26 which are respectively matched with the first rigid unit 8 and the fifth rigid unit 12, wherein each positioning block 26 is provided with a sleeve 30 which is inserted into the long round hole 24, slidably sleeved outside the limiting column 27 and has an oblong cross section, and a limiting plate 31 which is arranged outside the sleeve 30 and matched with the positioning concave platform 25; the positioning block 26 limits and presses the limiting column 27 on the inner side of the positioning concave platform 25; the first threaded hole 34 is formed in the positioning block 26, the second threaded hole 42 is formed in the position, corresponding to the first threaded hole 34 in the positioning block 26, of the third fan-shaped rigid plate 10, the diameter of the first threaded hole 34 is larger than that of the second threaded hole 42 by one grade, and the first threaded hole 34 and the second threaded hole 42 are connected through bolts which are used for fixing the positioning block 26 and the third fan-shaped rigid plate 10 and matched with the second threaded hole 42. Thus, a conventional bolt matching the first threaded hole 34 can be used as a pull-up bolt to push the positioning block 26 off the first rigid unit 8 or the ninth rigid unit 16. The positioning block 26 is provided not only to limit the deformation of the damper in the shearing direction within a set range, but also to limit the radial deformation of the damper within a set range. The positioning block 26 is connected to the third fan-shaped rigid plate 10 through a bolt and can be matched with the limiting column 27 to enable the damper to be more stable in production, transportation and installation processes, initial deformation is avoided, after the damper is installed in place, the positioning block 26 can be pushed away from the first rigid unit 8 and the fifth rigid unit 12 through a pulling bolt which is a common bolt matched with the first threaded hole 34, and the damper can be enabled to enter a working state rapidly.
In order to improve the effect of damping deformation, the third fan-shaped rigid plate 10, the fan-shaped rigid plate a17, the fan-shaped rigid plate B18, the fan-shaped elastic plate a19 and the fan-shaped elastic plate B are all fan-shaped concentric with the composite dissipative support body 1.
To facilitate the fixed connection with the beam 40 and the column 41, the edges of the beam connecting plate 3 and the column connecting plate 4 are provided with a plurality of bolt holes 32.
The first, fifth and ninth rigid units and the third and seventh fan-shaped rigid plates are preferably made of high hardness steel.
When the damper is used, the damper is installed at an included angle of a connection point of a beam 40 and a column 41, the beam connecting plate 3 is fixedly connected with the beam 40, the column connecting plate 4 is fixedly connected with the column 41, one end of the flexible pull rod or the steel wire rope 2 far away from the damper extends obliquely, or the flexible pull rod or the steel wire rope is connected with the second through hole 36 on the third fan-shaped rigid plate 10 through other tension members and extends obliquely towards one end far away from the damper, or the flexible pull rod or the steel wire rope is connected with the second through hole 36 on the third fan-shaped rigid plate 10 and the second through hole 36 on the seventh fan-shaped rigid plate 14 through other tension members and extends obliquely towards one end far away from the damper simultaneously, so that the flexible pull rod or the steel wire rope is fixed to keep oblique tension applied to the damper. Fig. 13 is a schematic structural view of a beam-column joint dry-connection fan-shaped viscoelastic damper provided by the invention when the beam-column joint dry-connection fan-shaped viscoelastic damper is installed in a lower right included angle between a beam 40 and a column 41 of a frame structure, fig. 14 is a schematic structural view of the beam-column joint dry-connection fan-shaped viscoelastic damper provided by the invention when the beam 40 and the column 41 of the frame structure are installed in an upper right included angle and a lower right included angle, fig. 15 is a schematic structural view of the beam-column joint dry-connection fan-shaped viscoelastic damper provided by the invention when the beam-column joint dry-connection fan-shaped viscoelastic damper is installed in a lower left included angle and a lower right included angle between the beam 40 and the column 41 of the frame structure, and fig. 16 is a schematic structural view of the beam-column joint dry-connection fan-shaped viscoelastic damper provided by the invention when the beam 40 and the column 41 of the frame structure are installed in an upper left included angle, a lower left included angle, an upper right included angle and a lower right included angle.

Claims (10)

1. A beam-column joint dry connection fan-shaped viscoelastic damper comprises a composite energy consumption support body (1), a beam connecting plate (3) and a column connecting plate (4), and is characterized by further comprising a limiting and positioning device, wherein the lower end of the beam connecting plate (3) and the left end of the column connecting plate (4) are respectively provided with a first upright U-shaped groove part (5) and a second inverted U-shaped groove part (6), the left side wall of the second U-shaped groove part (6) is arranged in a notch of the first U-shaped groove part (5) in an occluded manner, and the beam connecting plate (3) and the column connecting plate (4) are in a rotation range of 80-100 degrees due to the cooperation between the first U-shaped groove part (5) and the second U-shaped groove part (6);
a first through hole (7) which is communicated up and down is formed in the middle of the left end of the column connecting plate (4);
the composite energy consumption support body (1) is arranged between the beam connecting plate (3) and the column connecting plate (4), a fan-shaped notch (33) is formed in the position, close to the intersection point of the beam connecting plate (3) and the column connecting plate (4), of the composite energy consumption support body (1), and the composite energy consumption support body (1) comprises a first rigid unit (8), a second elastic unit (9), a third fan-shaped rigid plate (10), a fourth elastic unit (11), a fifth rigid unit (12), a sixth elastic unit (13), a seventh fan-shaped rigid plate (14), an eighth elastic unit (15) and a ninth rigid unit (16) which are parallel to each other from front to back and are sequentially and fixedly connected;
the first rigid unit (8), the fifth rigid unit (12) and the ninth rigid unit (16) are all composed of fan-shaped rigid plates A (17) and fan-shaped rigid plates B (18) which are symmetrically arranged along the angular bisector of the beam connecting plate (3) and the column connecting plate (4);
the second elastic unit (9), the fourth elastic unit (11), the sixth elastic unit (13) and the eighth elastic unit (15) are all composed of a fan-shaped elastic plate A (19) and a fan-shaped elastic plate B (20) which are symmetrically arranged along the angular bisector of the beam connecting plate (3) and the column connecting plate (4);
the left end surface of a fan-shaped rigid plate A (17) and the lower end surface of a fan-shaped rigid plate B (18) in the first rigid unit (8), the fifth rigid unit (12) and the ninth rigid unit (16) are respectively and vertically fixedly connected with the right side surface of the beam connecting plate (3) and the upper side surface of the column connecting plate (4);
the second elastic unit (9), the third fan-shaped rigid plate (10), the fourth elastic unit (11), the sixth elastic unit (13), the seventh fan-shaped rigid plate (14) and the eighth elastic unit (15) are all arranged in the middle of the area between the beam connecting plate (3) and the column connecting plate (4), and fan-shaped first fan-shaped buffer areas (21) and second fan-shaped buffer areas (22) are respectively reserved between the left edge and the right edge of the second elastic unit and the beam connecting plate (3) and between the left edge and the right edge of the second elastic unit and the column connecting plate (4);
strip-shaped buffer areas (23) are arranged between the fan-shaped rigid plate A (17) and the fan-shaped rigid plate B (18) and between the fan-shaped elastic plate A (19) and the fan-shaped elastic plate B (20);
a first gap (35) and a second gap (37) are respectively arranged between the two close ends of a fan-shaped rigid plate A (17) and a fan-shaped rigid plate B (18) in the first rigid unit (8), the fifth rigid unit (12) and the ninth rigid unit (16), and between the two close ends of a fan-shaped elastic plate A (19) and a fan-shaped elastic plate B (20) in the second elastic unit (9), the fourth elastic unit (11), the sixth elastic unit (13) and the eighth elastic unit (15);
a second through hole (36) and a third through hole (38) which are coaxially arranged are respectively formed in the third fan-shaped rigid plate (10) and the seventh fan-shaped rigid plate (14) at positions corresponding to the first notch (35) and the second notch (37);
the first rigid unit (8) and the ninth rigid unit (16) are provided with a pair of oblong holes (24) which are oppositely distributed on the fan-shaped rigid plate A (17) and the fan-shaped rigid plate B (18) at the positions close to the outer ends;
a pair of oblong holes (24) on the front side surface of the first rigid unit (8) and the rear side surface of the ninth rigid unit (16) are respectively provided with positioning concave platforms (25) communicated with the oblong holes (24) on the sides far away from each other;
the limiting and positioning device comprises two pairs of limiting columns (27) which are respectively matched with the first rigid unit (8) and the ninth rigid unit (16), each limiting column (27) is provided with a cylinder (28) inserted into the long round hole (24) and a limiting lug part (29) which is arranged at the upper end of the cylinder (28) and matched with the positioning concave table (25), and the two pairs of limiting columns (27) are respectively fixedly connected with the third fan-shaped rigid plate (10) and the seventh fan-shaped rigid plate (14); the size of the outer diameter of the limiting column (27) is smaller than the size of the inner diameter of the long round hole (24).
2. The beam-column joint dry-connection sector viscoelastic damper is characterized by further comprising a stretching device, wherein the stretching device is composed of a flexible pull rod or a steel wire rope (2) and a steel wire rope (39), the steel wire rope (39) is connected with third through holes (38) in a third sector rigid plate (10) and a seventh sector rigid plate (14) after passing through a first through hole (7), and the flexible pull rod or the steel wire rope (2) is connected with second through holes (36) in the third sector rigid plate (10) and the seventh sector rigid plate (14) simultaneously.
3. The beam-column joint dry-connection fan-shaped viscoelastic damper as claimed in claim 1 or 2, wherein the limit positioning device further comprises two pairs of positioning blocks (26) respectively matched with the first rigid unit (8) and the ninth rigid unit (16), the positioning blocks (26) are provided with sleeves (30) which are inserted into the oblong holes (24) and are slidably sleeved outside the limit columns (27) and are long in cross section, and limit plates (31) which are arranged outside the sleeves (30) and matched with the positioning concave tables (25); the positioning block (26) limits and presses the limiting column (27) on the inner side of the positioning concave table (25);
the positioning block (26) is provided with a first threaded hole (34), the third fan-shaped rigid plate (10) and the seventh fan-shaped rigid plate (14) are provided with a second threaded hole (42) at the positions corresponding to the first threaded hole (34) on the positioning block (26), the first threaded hole (34) is larger than the second threaded hole (42) in diameter by one grade, and the first threaded hole (34) and the second threaded hole (42) are connected through a bolt which is used for fixing the positioning block (26) and the third fan-shaped rigid plate (10) or the seventh fan-shaped rigid plate (14) and is matched with the second threaded hole (42).
4. The beam-column joint dry-connection sector viscoelastic damper as claimed in claim 3, characterized in that the third sector rigid plate (10), the seventh sector rigid plate (14), the sector rigid plate A (17), the sector rigid plate B (18), the sector elastic plate A (19) and the sector elastic plate B are all sectors concentric with the composite dissipative support (1).
5. A beam-column joint dry-connect sector viscoelastic damper as claimed in claim 4, characterized in that the edges of the beam connection plate (3) and the column connection plate (4) are provided with a plurality of bolt holes (32).
6. A beam-column joint dry connection fan-shaped viscoelastic damper comprises a composite energy consumption support body (1), a beam connecting plate (3) and a column connecting plate (4), and is characterized by further comprising a limiting and positioning device, wherein the lower end of the beam connecting plate (3) and the left end of the column connecting plate (4) are respectively provided with a first upright U-shaped groove part (5) and a second inverted U-shaped groove part (6), the left side wall of the second U-shaped groove part (6) is arranged in a notch of the first U-shaped groove part (5) in an occluded manner, and the beam connecting plate (3) and the column connecting plate (4) are in a rotation range of 80-100 degrees due to the cooperation between the first U-shaped groove part (5) and the second U-shaped groove part (6);
a first through hole (7) which is communicated up and down is formed in the middle of the left end of the column connecting plate (4);
the composite energy consumption support body (1) is arranged between the beam connecting plate (3) and the column connecting plate (4), a fan-shaped notch (33) is formed in the position, close to the intersection point of the beam connecting plate (3) and the column connecting plate (4), of the composite energy consumption support body (1), and the composite energy consumption support body (1) comprises a first rigid unit (8), a second elastic unit (9), a third fan-shaped rigid plate (10), a fourth elastic unit (11) and a fifth rigid unit (12) which are parallel to each other from front to back and are sequentially and fixedly connected;
the first rigid unit (8) and the fifth rigid unit (12) are respectively composed of a fan-shaped rigid plate A (17) and a fan-shaped rigid plate B (18) which are symmetrically arranged along the angular bisector of the beam connecting plate (3) and the column connecting plate (4);
the second elastic unit (9) and the fourth elastic unit (11) are composed of a fan-shaped elastic plate A (19) and a fan-shaped elastic plate B (20) which are symmetrically arranged along the angular bisector of the beam connecting plate (3) and the column connecting plate (4);
the left end surface of a fan-shaped rigid plate A (17) and the lower end surface of a fan-shaped rigid plate B (18) in the first rigid unit (8) and the fifth rigid unit (12) are respectively and vertically fixedly connected with the right side surface of the beam connecting plate (3) and the upper side surface of the column connecting plate (4);
the second elastic unit (9), the third fan-shaped rigid plate (10) and the fourth elastic unit (11) are all arranged in the middle of the area between the beam connecting plate (3) and the column connecting plate (4), and fan-shaped first fan-shaped buffer areas (21) and second fan-shaped buffer areas (22) are respectively reserved between the left edge and the right edge of the second elastic unit and the beam connecting plate (3) and the column connecting plate (4);
strip-shaped buffer areas (23) are arranged between the fan-shaped rigid plate A (17) and the fan-shaped rigid plate B (18) and between the fan-shaped elastic plate A (19) and the fan-shaped elastic plate B (20);
a first gap (35) and a second gap (37) are respectively arranged between the two close ends of the fan-shaped rigid plate A (17) and the fan-shaped rigid plate B (18) in the first rigid unit (8) and the fifth rigid unit (12) and between the two close ends of the fan-shaped elastic plate A (19) and the fan-shaped elastic plate B (20) in the second elastic unit (9) and the fourth elastic unit (11);
a second through hole (36) and a third through hole (38) are respectively formed in the third fan-shaped rigid plate (10) at positions corresponding to the first notch (35) and the second notch (37);
the first rigid unit (8) and the fifth rigid unit (12) are provided with a pair of oblong holes (24) which are oppositely distributed on the fan-shaped rigid plate A (17) and the fan-shaped rigid plate B (18) at the positions close to the outer ends;
a pair of oblong holes (24) on the front side surface of the first rigid unit (8) and the rear side surface of the fifth rigid unit (12) are respectively provided with a positioning concave platform (25) communicated with the oblong holes (24) on one side far away from each other;
the limiting and positioning device comprises two pairs of limiting columns (27) which are respectively matched with the first rigid unit (8) and the fifth rigid unit (12), each limiting column (27) is provided with a cylinder (28) inserted into the long round hole (24) and a limiting lug part (29) which is arranged at the upper end of the cylinder (28) and matched with the positioning concave platform (25), and the two pairs of limiting columns (27) are fixedly connected with the third fan-shaped rigid plate (10); the size of the outer diameter of the limiting column (27) is smaller than the size of the inner diameter of the long round hole (24).
7. The beam-column joint dry-connection sector viscoelastic damper as claimed in claim 6, further comprising a stretching device, wherein the stretching device is composed of a flexible pull rod or a steel wire rope (2) and a steel wire rope (39), the steel wire rope (39) is connected with a third through hole (38) on the third sector rigid plate (10) after passing through the first through hole (7), and the flexible pull rod or the steel wire rope (2) is connected with a second through hole (36) on the third sector rigid plate (10).
8. The beam-column joint dry-connection fan-shaped viscoelastic damper as claimed in claim 6 or 7, wherein the limit positioning device further comprises two pairs of positioning blocks (26) respectively matched with the first rigid unit (8) and the fifth rigid unit (12), the positioning blocks (26) are provided with sleeves (30) which are inserted into the oblong holes (24) and are slidably sleeved outside the limit columns (27) and are long in cross section, and limit plates (31) which are arranged outside the sleeves (30) and matched with the positioning concave tables (25); the positioning block (26) limits and presses the limiting column (27) on the inner side of the positioning concave table (25);
the positioning block (26) is provided with a first threaded hole (34), the third fan-shaped rigid plate (10) is provided with a second threaded hole (42) at a position corresponding to the first threaded hole (34) in the positioning block (26), the first threaded hole (34) is larger than the second threaded hole (42) in diameter by one grade, and the first threaded hole (34) and the second threaded hole (42) are connected through a bolt which is used for fixing the positioning block (26) and the third fan-shaped rigid plate (10) and is matched with the second threaded hole (42).
9. The beam-column joint dry-connection sector viscoelastic damper as claimed in claim 8, characterized in that the third sector rigid plate (10), the sector rigid plate a (17), the sector rigid plate B (18), the sector elastic plate a (19) and the sector elastic plate B are all sectors concentric with the composite dissipative support (1).
10. A beam-column nodal dry connect sector viscoelastic damper according to claim 9, characterized in that the edges of the beam connecting plate (3) and the column connecting plate (4) are provided with a plurality of bolt holes (32).
CN201710053071.1A 2017-01-24 2017-01-24 Beam column node dry connection fan-shaped viscoelastic damper Active CN106760853B (en)

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CN109113200B (en) * 2018-08-29 2023-08-29 广州大学 Double-side damping beam column hinge joint
CN115075641B (en) * 2022-05-27 2023-03-14 北京交通大学 Angular displacement damper with wide application range

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CN106285140A (en) * 2016-09-22 2017-01-04 西安建筑科技大学 A kind of fan-shaped friction of joint energy consumer of scalable frictional force based on friction plate
CN206448585U (en) * 2017-01-24 2017-08-29 中国矿业大学 Bean column node involvement connects fan-shaped viscoelastic damper

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JP2009256898A (en) * 2008-04-14 2009-11-05 Yoshio Maeda Aseismatic reinforcement body
CN201521044U (en) * 2009-10-23 2010-07-07 广州大学 Strengthening arc-shaped lead viscoelastic damper for beam-column joint
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