JP6165981B1 - Rotary damper and mounting method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED To provide a rotary damper and a mounting method thereof. The present invention discloses a rotary damper and a method for mounting the same, and belongs to the field of structural vibration control technology. A regular octagonal moment transmission member, a transmission donut steel plate, a fixing donut steel plate, a damping material, and a metal casing are disclosed. And bearings and mounting brackets. A regular octagonal bearing is placed on one convex tooth with a damper, a regular octagonal hole is placed on the other convex tooth, the convex teeth are connected by a regular octagonal pin shaft, and the damper protrudes. When the pin shaft is fitted and relative rotation occurs on the convex teeth on both sides, the convex teeth drive a regular octagonal moment transmission member to the damping material interposed between the transmission donut steel plate and the fixing donut steel plate. Shear deformation can occur. The present invention can be used for vibration control of the building structure by attaching it to the pin node of the building, the need for the building space is relatively small, the building structure after mounting, the function of normal use and the effect on the beauty are also relatively small, It has high energy consumption efficiency, has flexibility in installation and arrangement, and has advantages such as convenience of repair and replacement. [Selection] Figure 1

Description

  The present invention relates to the civil engineering field and the structural vibration control field, and more particularly to a rotary damper for a damping material.

  Currently, in the field of structural vibration control, vibration reduction technology for passive energy absorption has already reached a relatively mature level, and various dampers with excellent performance have been widely introduced during actual construction, and the vibration suppression effect has been applied several times. It has been recognized as remarkable and effective after the earthquake trials.

  Over the past few years, the hinge connection system has been used in large quantities in new buildings, and the nodes connected by the hinges can release the moment of the nodes, and have unique merits in some structures. However, the hinge connection method does not yet have a dedicated device and method for absorbing and reducing vibration, and this includes a swing / automatic return member that uses the hinge connection method.

  Most buildings that currently operate hinged connections use some commonly used dampers, such as friction dampers, viscous dampers, buckling-restrained braces, metal dampers, and many of these dampers are linear tensile. It is a compression type, and is always attached in the form of a brace between diagonal layers of adjacent beams and columns in the building structure hierarchy, and both ends of the linear tension compression type damper have effective relative displacement, so that the damper Can exhibit the best vibration control effect. In a very large number of situations, the relative displacement between the diagonal nodes of adjacent beams and columns is relatively small for a building with a relatively high overall stiffness or a level within a building, even under strong earthquakes. The linear tension / compression damper has not fully demonstrated its excellent energy consumption performance. In addition to this, the requirements for the building space of the conventional brace type damper are relatively high, and in a very large number of architectural structure situations, the building space can not be operated or used normally and the building can be installed even if the building space can be installed normally. Has had an impact on the normal use or aesthetics.

  Considering the characteristics of the hinge structure of the building structure, the pin node often causes a finite relative rotation between the connecting rods on both sides of the hinge axis in the excitation action, the rotation angle is relatively small, the rotation speed is high, etc. It has a feature that allows a speed-dependent rotary displacement damper to be attached to the pin node to control the relative rotation between the hinge connecting rods. When the system is excited, the damper can also generate a relatively large damping force at a relatively small rotational displacement in real time, thereby reducing the seismic response of the entire structure. In addition, the damper volume is relatively small, the requirements for the building space are relatively small, and if installed at a node point where the space utilization rate is relatively low, the effect on the building structure is relatively small, and the normal use function and aesthetics of the building structure are Impact is relatively small.

  As the damping material, a speed-dependent high-performance damping material having viscosity and elasticity at the same time can be used. When the damping material undergoes rapid shear deformation in the power action, the damping force and speed generated by the damping material are in direct proportion, and the kinetic energy transmitted to the material is converted to the internal energy of the viscoelastic material and dissipated. Can do. The present invention has various advantages such as vibration reduction, high energy consumption efficiency, flexible arrangement, and convenient mounting.

  It is an object of the present invention to design a rotary damper structure dedicated to a hinge connection node and a method for attaching the rotary damper structure, and to provide a damping method and a vibration reduction method of a hinge connection method in a building structure.

The present invention includes the following contents.
The rotary damper includes a bearing having a regular octagonal inner wall cross section arranged in a convex tooth hole on one side of the pin node, the bearing can be fitted into the convex tooth hole, and the outer wall of the bearing is a convex tooth Fixed in the hole of
A hole that matches the cross section of the inner wall of the bearing is placed on the convex teeth on the other side, the convex teeth on both sides are abutted, and the convex teeth on both sides are arranged with a regular metal column having a regular octagonal cross section as the pin axis. Connecting, the pin shaft is simultaneously inserted into the one convex tooth bearing and the other convex tooth hole, and symmetrically protrudes from both convex tooth sides;
Both sides of the convex teeth are symmetrical parts, each of which includes a regular octagonal moment transmission member, a transmission donut steel plate, a fixing donut steel plate, a damping material, a metal casing, a bearing, and a mounting bracket;
In the metal casing, the transmission donut-type steel plate and the fixing donut-type steel plate are arranged at intervals, and the damping material is provided between the transmission donut-type steel plate and the fixing donut-type steel plate, and the regular octagonal moment transmission member is transmitted. Through the metal casing in the longitudinal direction through the center of the donut-shaped steel plate for fixing and the donut-shaped steel plate for fixing;
The entire regular octagonal moment transmission member is a regular octagonal hollow column with a regular octagonal cross section in the center, a regular octagonal hole penetrating the entire member in the longitudinal direction at the center, and the inner and outer rings are concentric and A similar regular octagon;
The donut-shaped steel plate for transmission has a regular octagonal inner ring cross section and a circular outer ring cross section, and the inner ring can penetrate the outer ring of a regular octagonal moment transmission member;
The fixing donut steel plate is an annular metal plate whose outer wall is welded onto the metal casing;
A circular steel plate having a certain thickness is provided at both ends of the metal casing, the steel plate at one end is provided with a circular hole in which a bearing can be mounted, the steel plate at the other end is provided with a cavity for fitting the bearing into the steel plate, and an intermediate section The cross section of the ring is circular, and has a circular hole in the center of which the donut-shaped steel plate for transmission and the donut-shaped steel plate for fixing are inserted;
The bearing inner wall has a regular octagonal cross section;
The mounting bracket is disposed on the side surface of the metal casing along the vertical direction, and at the same time is connected to the damper and the ground or the wall body, thereby resisting the torque acting on the damper.

The mounting method of the rotary damper is as follows:
A bearing whose inner wall cross section is a regular octagon is arranged in the hole of the convex tooth on one side of the pin node, the bearing can be fitted in the hole of the convex tooth, and the outer wall of the bearing is fixed in the hole of the convex tooth When,
A hole matching the inner wall cross-section of the bearing is placed on the other convex tooth, and the convex teeth on both sides are abutted to connect the convex teeth on both sides using a regular metal column with a regular octagonal cross-section as the pin axis. The pin shaft is simultaneously inserted into the one-side convex tooth bearing and the other-side convex tooth hole, and symmetrically protrudes from both sides of the convex tooth;
Inserting the opening end of the rotary damper of the damping material into the projecting pin shafts, and when the convex teeth on both sides generate relative rotation, the convex teeth rotate the pin shaft to operate the damper,
It is characterized by including.

  Furthermore, the regular octagonal moment transmission member through the mounting of the pin shaft realizes rotation of the transmission donut-type steel plate, and between the transmission donut-type steel plate and the fixing donut-type steel plate through rotation of the transmission donut-type steel plate. It is possible to generate shear deformation in the damping material.

The rotary damper and its mounting method provided by the present invention are designed for building pin nodes to control the relative rotation of the connecting rods on both sides. The damping material used for the damper can provide effective damping force and elastic force at the moment when the pin node generates a finite rotation when the building structure is subjected to vibration, loading or excitation.
The rotary damper according to the present invention can be attached to a location of a pin node where the building space utilization rate is relatively low, and the change or influence on the building structure is relatively small, and the influence on normal use and aesthetics of the building is also relatively small. The installation of the damper has a relatively low requirement for a building space, and can be attached to a pin node portion of a narrow or complicated structure where it is difficult to install a damper of a linear tension compression type. The rotary damper according to the present invention is not directly included in a part of the building structure, can be attached after the main structure during construction is completed, and can be directly replaced or repaired after damage. Therefore, the rotary damper according to the present invention has advantages such as high energy consumption efficiency, flexibility in installation and arrangement, and convenience of repair and replacement.

It is a schematic diagram which shows the structure of the rotary damper of the damping material concerning this invention. It is an AA line sectional view of the rotary damper concerning the present invention. It is a BB line sectional view of the rotary damper concerning the present invention. It is CC sectional view taken on the line of the rotary damper which concerns on this invention. It is DD sectional view taken on the line of the rotary damper which concerns on this invention. It is EE sectional view taken on the line of the rotary damper which concerns on this invention. It is a schematic diagram which shows the heel pin node of this invention. It is the front view and left view of a regular metal pin axis of a regular octagon. It is a schematic diagram which shows a mode that the rotary damper which concerns on this invention was attached to the M direction of FIG. It is the figure seen from the N direction in FIG. 9 of the rotary damper which concerns on this invention.

When there is a relatively high demand for vibration control in the building, especially the pin node structure is equipped with the rotary damper according to the present invention, that is, by placing the damper on one side or both sides of the pin node, the convex teeth on both sides of the pin node By controlling the finite relative rotation that occurs and providing a relatively large damping force at the moment of rotation, the earthquake resistance level of the building structure is increased.
As shown in FIGS. 1 to 6, the rotary damper according to the present invention can be used for vibration control or seismic reinforcement of a new building or an existing building. 2 is a cross-sectional view taken along line AA in FIG. 1, FIG. 3 is a cross-sectional view taken along line BB in FIG. 1, FIG. 4 is a cross-sectional view taken along line CC in FIG. FIG. 6 is a sectional view taken along the line EE of FIG. The entire damper has a cylindrical shape, a regular octagonal moment transmission member 1, a gap 11, a transmission donut steel plate 2, a welded seam 21, a fixing donut steel plate 3, a welded seam 31, a damping material 4, and a metal casing 5. A mounting bracket 6 and a bearing 7 are included.

  The entire regular octagonal moment transmission member 1 is a regular octagonal hollow column having a regular octagonal cross section in the center and a regular octagonal hole penetrating the entire member in the longitudinal direction at the center, and the inner ring and the outer ring are concentric. And it is a similar regular octagon, and there is a certain thickness between the inner ring and the outer ring. The regular octagonal moment transmission member 1 penetrates the entire damper along the longitudinal direction and can be completely inserted on the bearings 7 at both ends of the damper.

  The center of the transmission donut-shaped steel plate 2 is a regular octagonal hole that coincides with the cross section of the regular octagonal moment transmission member 1, and the regular octagonal moment transmission member 1 can be passed through the central hole. The transmission donut-shaped steel plate 2 is fixed on the regular octagonal moment transmission member 1 by a method such as welding (welding joint 21), leaving a constant gap between the steel plate and the metal casing 5, and the regular octagonal moment. It can rotate with the rotation of the transmission member 1.

  The cross-section of the fixing donut-shaped steel plate 3 is annular, the center is a circular hole, and the radius of the circular hole is substantially larger than the circumscribed circle radius of the transverse section of the regular octagonal moment transmission member 1, that is, a regular octagonal moment transmission. There is a certain gap 11 between the member 1 and the regular octagonal moment transmission member 1 can be freely rotated with respect to the fixing donut steel plate 3. The fixing donut type steel plate 3 is fixed on the metal casing 5 by a method such as welding (welding seam 31), and can be staggered with the transmission donut type steel plate 2, leaving a certain gap between the two.

  Preferably, high-strength steel material or other materials can be used to give the octagonal moment transmission member 1 mechanical characteristics such as relatively good shear and torsional resistance.

  As the damping material 4, a speed-dependent high-performance damping material having both viscosity and elasticity can be used.

  The whole metal casing 5 is a cylindrical body made of a metal material, and has a hollow in the center, and a regular octagonal moment transmission member 1, a transmission donut-type steel plate 2, a fixing donut-type steel plate 3 and a damping material 4 are placed therein. be able to. Both ends of the metal casing 5 are circular steel plates, and there is a regular octagonal hole at the center of the steel plate at one end in the direction indicated by P, the bearing 7 can be inserted, the steel plate at the other end has a part of the cavity inside the damper, and the outside Closes. The length of the metal casing 5 in the vertical direction can be appropriately increased or decreased depending on the number of the damping members 4 arranged.

  The mounting bracket 6 is disposed on the side column surface of the metal casing 5 and a plurality of mounting brackets 6 can be disposed along the vertical direction. The mounting bracket 6 can be connected to a fixed end such as a ground surface or a wall surface by a method such as a bolt, and can also be connected to the metal casing 5 by a welding method. The structure type of the mounting bracket 6 can be changed according to the actual situation, and only needs to achieve the purpose of fixing the damper.

  The bearing 7 can be placed in a hole or cavity in the steel plate on both sides of the metal casing 5. The cross section of the inner wall is a regular octagon, and the regular octagonal moment transmission member 1 can be penetrated or inserted. For example, a bearing capable of withstanding relatively axial and lateral loads such as a deep groove ball bearing can be used.

  The rotary damper according to the present invention will be described with reference to an example of a commonly used hinge connection assembly and its mounting and use. FIG. 7 and FIG. 8 are schematic views showing the heel hinge coupling assembly, in which three smooth convex teeth 8, a convex tooth bearing 81, a convex regular octagonal hole 82, and two smooth convex teeth 9 are shown. And a convex octagonal hole 91, a rectangular connecting plate 92, a stiffener 93, and a regular octagonal pin shaft 10.

  The flow of the method of attaching the rotary damper shown in FIG. 1 is as shown in FIGS. 9 and 10, and FIG. 9 is a view seen from the M direction in FIG. 7, and FIG. 10 is a view seen from the N direction in FIG. Yes, encompassing the next step.

  Step S1: A bearing having a regular octagonal inner wall cross section is disposed in the hole of one side convex tooth of the hinge connection, and a regular octagonal hole is disposed in the other convex tooth.

  Convex tooth bearings 81 are arranged on the three smooth convex teeth 8, and convex regular octagonal holes 91 are arranged on the two smooth convex teeth 9.

  Step S2: A regular octagonal pin shaft is simultaneously inserted into the convex teeth on both sides of the hinge assembly, and protrusions having the same length are left on both sides of the convex teeth.

  The presence of the convex tooth bearing 81 and the regular octagonal hole 91 allows the regular octagonal pin shaft 10 to rotate relative to the three smooth convex teeth 8 as the two smooth convex teeth 9 rotate. Because. The projecting portion of the regular octagonal pin shaft 10 leaves a length longer than the length of the damper in the vertical direction, and the regular octagonal pin shaft 10 can be completely inserted and joined to both end bearings 7 inside the damper.

  Step S3: Each of the two rotary dampers is put into the protruding portions on both sides of the insertion pin shaft.

  The regular octagonal moment transmission member 1 is fitted into the projecting regular octagonal pin shaft 10, and the pin shaft is completely joined to the bearings 7 at both ends of the damper. As shown in FIGS. 2 and 7, in order to smoothly put the pin shaft 10 into the damper, the regular octagonal moment transmission member 1 and the convex regular octagonal hole 91 must coincide in the x and y directions.

  Step S4: The damper is fixed and has a degree of freedom equal to the convex tooth with the bearing attached.

  It is also possible to connect the mounting bracket 6 to the wall / ground by a bolt system and weld the metal casing 5 to the three smooth convex teeth 8.

  FIG. 9 and FIG. 10 are schematic diagrams showing the structure when the rotary damper of the damping material is attached to the saddle pin node. When the vibration load is transmitted to the pin node, two smooth convex teeth 9 and three are provided. Relative rotation occurs in the smooth convex teeth 8, the two smooth convex teeth 9 drive the pin shaft 10, and the pin shaft 10 also rotates the regular octagonal moment transmission member 1. The doughnut-shaped steel plate 2 and the fixing donut-shaped steel plate 3 are also rotated relative to each other, that is, the shearing deformation is generated in the damping material 4, thereby consuming energy and two smooth convex teeth 9 and 3 The objective of controlling the smooth convex teeth 8 of the book to generate relative rotation is achieved.

  The damping damper of the damping material according to the present invention can be attached to a plurality of pin nodes of the same building. The volume of the damper is relatively small, and since the damper is attached only to the node of the building, the restriction that the damper is subjected to the building space is relatively small, and the influence on the normal use function of the building structure and the architectural aesthetics is also relatively small. Furthermore, the damper according to the present invention can be selected as an alternative to the conventional brace type damper when the conventional brace type damper can be installed in a special building structure or in a narrow space, because the effect is poor after the installation. .

  During actual construction, the rotary damper of damping material according to the present invention is based on the size of the convex teeth on both sides of the pin node and the damping demand of the building structure, and is a regular octagonal moment transmission member 1 and transmission donut. The size or quantity of the shaped steel plate 2, the fixing donut shaped steel plate 3, the damping material 4, the metal casing 5, the mounting bracket 6 and the bearing 7 can be designed.

  Similarly, after the size or quantity of the heel member is changed, the characteristics subject to the force of the damper may also change, and the material characteristics of the heel part will be redesigned, and the material type and dose of the heel part reasonably To change.

  In the damper mounting method according to the present invention, the damper can be mounted in a unified manner after the main body of the building structure is mounted, and a plurality of sets of dampers can be mounted simultaneously, so that the construction efficiency is relatively high. Similarly, if the damper is damaged, it is convenient to repair or replace the damper, which is also consistent with the mainstream seismic design concept.

  Needless to say, the damping damper and its mounting method according to the present invention can also be used in combination with other damping methods at the same time in order to further improve the seismic performance of the building structure.

  Since there are various structural types of the hinge structure of the building, the rotary damper of the damping material according to the present invention can be partially changed in the structure of the hinge structure having a different type. If these changes or modifications are still within the scope of the claims of the present invention, the present invention automatically includes those changes or modifications.

DESCRIPTION OF SYMBOLS 1 Regular octagonal moment transmission member 11 Crevice 2 Transmission donut type steel plate 21 Welding joint 3 Fixation donut type steel plate 31 Welding joint 4 Damping material 5 Metal casing 6 Mounting bracket 7 Bearing 8 Three smooth convex teeth 81 Convex tooth bearing 82 Convex tooth octagonal hole 9 Two smooth convex teeth 91 Convex tooth octagonal hole 92 Rectangular connecting plate 93 Stiffener 10 Regular octagonal pin shaft

Claims (3)

The rotary damper includes a bearing having a regular octagonal inner wall cross section disposed in a convex tooth hole on one side of the pin node, the bearing can be fitted into the convex tooth hole, and the outer wall of the bearing Fixed in the convex hole,
A hole that matches the cross section of the inner wall of the bearing is placed on the convex teeth on the other side, the convex teeth on both sides are abutted, and the convex teeth on both sides are arranged with a regular metal column having a regular octagonal cross section as the pin axis. Connecting, the pin shaft is simultaneously inserted into the bearing of the one side convex tooth and the hole of the other side convex tooth, and symmetrically protrudes from both sides of the convex tooth,
Both sides of the convex teeth are symmetrical with each other, and either part includes a regular octagonal moment transmission member, a transmission donut steel plate, a fixing donut steel plate, a damping material, a metal casing, a bearing, and a mounting bracket.
The transmission donut-type steel plate and the fixing donut-type steel plate are arranged at intervals in the metal casing, and the damping material is provided between the transmission donut-type steel plate and the fixing donut-type steel plate, A square moment transmission member passes through the metal casing in the vertical direction through the center of the transmission donut-shaped steel sheet and the fixing donut-shaped steel sheet,
The whole of the regular octagonal moment transmission member is a regular octagonal hollow column with a regular octagonal cross section in the center, a regular octagonal hole penetrating the whole member in the longitudinal direction at the center, and an inner ring and an outer ring are concentric. And a similar regular octagon,
The inner ring cross section of the transmission donut-shaped steel sheet is a regular octagon, and the outer ring cross section is circular, and the inner ring can pass the outer ring of the regular octagonal moment transmission member,
The fixing donut-shaped steel plate is an annular metal plate, and an outer wall is welded onto the metal casing,
A circular steel plate having a certain thickness is provided at both ends of the metal casing, the steel plate at one end has a circular hole to which the bearing can be attached, and the steel plate at the other end has a cavity for fitting the bearing into the steel plate. The cross section of the intermediate section is an annulus, and has a circular hole in which the transmission donut-shaped steel sheet and the fixing donut-shaped steel sheet are placed in the center,
A cross section of the inner wall of the bearing is a regular octagon,
The mounting bracket is disposed on a side surface of the metal casing along a vertical direction, and at the same time is connected to the damper and the ground or a wall to resist a torque acting on the damper. A method of attaching the rotary damper according to claim 1,
A bearing having a regular octagonal inner wall cross-section is disposed in the convex tooth hole on one side of the pin node, the bearing can be fitted into the convex tooth hole, and the outer wall of the bearing is fixed in the convex tooth hole. And
A hole matching the inner wall cross-section of the bearing is placed on the other convex tooth, and the convex teeth on both sides are abutted to connect the convex teeth on both sides using a regular metal column with a regular octagonal cross-section as the pin axis. The pin shaft is simultaneously inserted into the bearing of the one-side convex tooth and the hole of the other-side convex tooth, and symmetrically protrudes from both sides of the convex tooth;
The opening end of the rotary damper of the damping material is fitted into each projecting pin shaft, and when the convex teeth on both sides generate relative rotation, the convex teeth rotate the pin shaft to operate the damper,
The installation method of the rotary damper characterized by including.   Through the attachment of the pin shaft, the regular octagonal moment transmission member realizes to rotate the transmission donut-type steel plate, and through the rotation of the transmission donut-type steel plate, the transmission donut-type steel plate and the fixing donut-type steel plate The method according to claim 2, wherein a shear deformation is generated in the damping material in between.

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