JP2014163444A - Support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support device having a simple and compact constitution and excellent in workability.SOLUTION: A support device includes: a support body 2 in which an upper shoe 5 is fixed to an upper end of a rubber laminate 3 on which a steel plate 4b and a rubber layer 4a are laminated, and a lower shoe 6 is fixed to a lower end thereof; a plate 7 which is fixed to an upper structure 11, and to which the opposite upper shoe 5 is attached; and a plate 8 which is fixed to a lower structure 12, and to which the opposite lower shoe 6 is attached. At least one of the upper shoe 5 and the lower shoe 6 is fitted and attached to recess parts 7a, 8a formed in the opposite plates 7, 8.

Description

  The present invention relates to a bearing device, and more particularly, to a bearing device that can have a simple and compact configuration and is excellent in workability.

  In order to support structures such as buildings and bridges, the upper and lower ends of a rubber laminate made by laminating steel sheets and rubber layers are used to integrate a metal upper and lower arm respectively. (For example, refer to Patent Document 1). Such a support body is fixed to the plates with the upper and lower collars facing each other. For example, the upper anchor is fixed to the sole plate fixed to the lower surface of the upper structure such as a bridge using a bolt or the like, and the lower anchor is fixed to the base plate fixed to the upper surface of the lower structure such as a bridge pier using a bolt or the like. Fixed.

  A shear key may be interposed between the upper eyelid and the sole plate or between the lower eyelid and the base plate. The shear key facilitates positioning of each other and prevents mutual displacement with respect to the shear force (horizontal force). By the way, since there are many cases where a sufficient space cannot be secured for installing the support body, a support body that can be installed in a small space is desired. Moreover, since the work of attaching and removing the support body using bolts or the like requires a great deal of labor, it is also necessary to improve the workability so that these work can be easily performed.

JP 2009-204077 A

  An object of the present invention is to provide a bearing device that can be configured in a simple and compact manner and has excellent workability.

  In order to achieve the above object, the bearing device of the present invention includes a support body having an upper collar fixed to the upper end and a lower collar fixed to the lower end, and a plate to which the upper collar fixed to the upper structure and facing is mounted. And a plate to which the lower collar is fixed and fixed to the lower structure, and at least one of the upper collar and the lower collar is fitted in a recess formed in the opposing plate. It is the structure which can be attached.

  According to the present invention, at least one of the upper collar and the lower collar is configured to be fitted and attached to the plate fixed to the opposing upper structure and the recess formed in the plate fixed to the lower structure. The upper and lower eyelids fitted in the recesses can function as conventional shear keys. Therefore, it is not necessary to provide a separate shear key, and the bolts and the like for attaching the support body can be reduced or eliminated. As a result, a simple and compact configuration can be achieved. In addition, the workability of attaching and removing the support body using bolts or the like can be reduced or eliminated, so that workability is improved.

  Here, it is also possible to adopt a configuration in which both the upper and lower eyelids are fitted and attached to the recesses formed in the opposing plates. With this configuration, it is more and more advantageous to make the configuration simple and compact and improve the workability.

  Further, the concave portion and the upper and lower collars fitted and attached to the concave portion may be configured such that screw threads are formed on circumferential surfaces facing each other and screwed together. With this configuration, the upper eyelid is fixed to the opposing plate in an immovable state in the up-down direction, and the lower eyelid is fixed in an up-down direction to the plate facing the lower eyelid. Therefore, even if the upper lifting force acts on the upper structure, it can be prevented from being separated from the bearing device (lower structure).

  It can also be set as the structure provided with the spacer arrange | positioned inside the said recessed part. By using this spacer, the vertical distance between the upper structure and the lower structure can be finely adjusted.

It is sectional drawing which illustrates the installation state of the support apparatus of this invention. It is a top view which illustrates the support apparatus of FIG. It is AA sectional drawing of FIG. It is sectional drawing which illustrates embodiment of the support apparatus provided with the spacer arrange | positioned inside a recessed part. It is sectional drawing which illustrates another embodiment of a support apparatus. FIG. 6 is a partially enlarged view of FIG. 5. It is sectional drawing which illustrates another embodiment of a support apparatus.

  Hereinafter, the support device of the present invention is explained based on an embodiment shown in a figure. In the drawings, the bridge axis direction is indicated by the X direction, and the direction perpendicular to the bridge axis is indicated by the Y direction.

  The support device 1 of the embodiment of the present invention illustrated in FIGS. 1 to 3 is installed in a lower structure 12 such as a bridge pier that supports an upper structure 11 such as a bridge girder. The support device 1 includes a support body 2, a sole plate 7, and a base plate 8.

  The support body 2 includes a rubber laminate 3 in which a steel plate 4b and a rubber layer 4a are laminated, an upper rod 5 fixed to the upper end of the rubber laminate 3, and a lower rod 6 fixed to the lower end of the rubber laminate 3. It consists of and. These steel plate 4b, upper iron 5 and lower iron 6 are vulcanized and integrated with the adjacent rubber layer 4a. The upper rod 5 and the lower rod 6 are cylindrical.

  The sole plate 7 is fixed to the lower surface of the upper structure 11 using, for example, anchor bolts 10a. The base plate 8 is fixed to the upper surface of the lower structure 12 using, for example, anchor bolts 10b. A recess 7 a is formed on the lower surface of the sole plate 7 that faces the upper collar 5, and a recess 8 a is formed on the upper surface of the base plate 8 that faces the lower collar 6.

  The upper collar 5 and the lower collar 6 are fitted and attached to concave portions 7a and 8a formed on the opposing sole plate 7 and base plate 8, respectively. Accordingly, the recesses 7a and 8a are formed in substantially the same size as the outer shapes of the upper and lower hooks 5 and 6 to be fitted. In this embodiment, the rubber laminate 3 has a cylindrical shape. However, for example, a polygonal column shape such as a square column shape may be employed.

  In the support device 1, the sole plate 7 is synchronized with the upper structure 11 when the upper structure 11 expands in the bridge axis direction X due to an increase in the outside air temperature or contracts in the bridge axis direction X due to a decrease in the outside air temperature. As a result, the support body 2 undergoes shear deformation in the bridge axis direction X, and the expansion and contraction of the upper structure 11 is absorbed. When the upper structure 11 expands and contracts in the direction Y perpendicular to the bridge axis, the support body 2 shears and deforms in the direction Y perpendicular to the bridge axis, and similarly, the expansion and contraction of the upper structure 11 is absorbed. In this way, the bearing device 1 stably supports the load of the upper structure 11.

  In this support device 1, the upper rod 5 and the lower rod 6 fitted in the respective recesses 7a and 8a function as conventional shear keys. Therefore, it is not necessary to provide a separate shear key, and bolts for attaching the support body 2 to the sole plate 7 and the base plate 8 can be eliminated. Thereby, it becomes possible to obtain the bearing device 1 having a simple and compact configuration. Since there is often a case where a sufficient space cannot be secured for installing the support body 2, the support device 1 that can be installed in a small space is very useful.

  Further, since the upper rod 5 and the lower rod 6 function as conventional shear keys, the support body 2 can be easily positioned with high accuracy. And since the operation | work which attaches or removes the support body 2 to the sole plate 7 or the base plate 8 using a volt | bolt etc. can be eliminated, workability | operativity improves.

  The embodiment illustrated in FIG. 4 further includes a spacer 9 disposed inside the recess 8a as compared to the previous embodiment. The spacer 9 may be disposed not only in one of the recesses 7a and 8a but also in both. By using the spacer 9, it is possible to finely adjust the vertical distance between the upper structure 11 and the lower structure 12. The spacer 9 is not limited to a simple plate-like body, but has a shape that includes a peripheral wall that protrudes in the vertical direction at the peripheral edge of the plate-like body in order to adjust the horizontal position of the upper collar 5 and the lower collar 6. You can also.

  When an upper lifting force is applied to the upper structure 11, it is assumed that the upper structure 11 is separated by being vertically separated between the sole plate 7 and the upper rod 5. Therefore, it is necessary to provide an upper lifting force suppression device separately.

  Here, as in the embodiment illustrated in FIGS. 5 and 6, the recesses 7 a and 8 a, and the upper and lower collars 5 and 6 fitted and attached to the recesses 7 a and 8 a are arranged on the circumferential surfaces facing each other. It is also possible to adopt a configuration in which a screw thread is formed and screwed together. With this configuration, the upper collar 5 is fixed to the sole plate 7 so as not to move in the vertical direction, and the lower collar 6 is fixed to the base plate 8 so as not to move in the vertical direction. Therefore, even if the upper lifting force acts on the upper structure 11, it can be prevented from being separated from the support device 1 (lower structure 12). Therefore, it is not necessary to separately provide a lifting force suppressing device.

  In the above-described various embodiments, both the upper collar 5 and the lower collar 6 are fitted and attached to the concave portions 7a and 8a formed in the opposing sole plate 7 and base plate 8, respectively. It is only necessary that at least one of the upper collar 5 and the lower collar 6 be fitted and attached to the recesses 7a and 8a formed in the opposing sole plate 7 and base plate 8, respectively.

  As illustrated in FIG. 7, the lower collar 6 may be fixed to the base plate 8 with bolts 6 a and the upper collar 5 may be fitted and attached to the recess 7 a formed on the sole plate 7. Alternatively, the upper collar 5 may be fixed to the sole plate 7 with a bolt, and the lower collar 6 may be fitted and attached to a recess 8 a formed in the base plate 8.

  A recess 7a formed in the sole plate 7 and an upper collar 5 fitted and attached to the recess 7a are threaded on peripheral surfaces facing each other, and the lower collar 6 is fastened by a bolt 6a. It can also be configured to be fixed to the base plate 8. Further, the upper collar 5 is fixed to the sole plate 7 by bolts, and a recess 8a formed in the base plate 8 and a lower collar 6 fitted and attached to the recess 8a form a thread on the circumferential surfaces facing each other. It is also possible to adopt a configuration that is screwed together.

  Even in such an embodiment, the upper and lower collars 5 and 6 have a simple and compact structure as compared with the conventional bearing device in which the sole plate 7 and the base plate 8 are attached using bolts or the like, respectively. Therefore, workability is also improved. Of course, both the upper collar 5 and the lower collar 6 are configured to be fitted and attached to the recesses 7a and 8a formed in the sole plate 7 and the base plate 8, respectively, thereby making the configuration more simple and compact. This is also advantageous for improving the workability.

  In addition, this invention is not restricted to the support body 2 provided with the rubber laminated body 3 between the upper eaves 5 and the lower eaves 6, and other support bodies 2 can also be used. For example, a steel support such as a support plate support can be used.

DESCRIPTION OF SYMBOLS 1 Support apparatus 2 Support body 3 Rubber laminated body 4a Rubber layer 4b Steel plate 5 Upper rod 6 Lower rod 6a Bolt 7 Sole plate 7a Recess 8 Base plate 8a Recess 9 Spacer 10a, 10b Anchor bolt 11 Upper structure 12 Lower structure

Claims (4)

  A support body having an upper collar fixed at the upper end and a lower collar fixed at the lower end, a plate to which the upper collar fixed to the upper structure is opposed, and a lower plate fixed to the lower structure and opposed to the lower structure. A support device comprising a plate to which a collar is attached, wherein at least one of the upper collar and the lower collar is configured to be fitted and attached to a recess formed in the opposing plate. .   The support device according to claim 1, wherein both the upper and lower eyelids are configured to be fitted and attached to recesses formed in the opposing plates.   The support device according to claim 2, wherein the recess and the upper and lower collars fitted and attached to the recess have screw threads formed on circumferential surfaces facing each other and are screwed together.   The support apparatus in any one of Claims 1-3 provided with the spacer arrange | positioned inside the said recessed part.

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