JP2013019103A - Support structure of roof frame body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support structure of a roof frame body, which has great followability to a shake of a building and can be constructed compactly at a low cost.SOLUTION: The support structure of a roof frame body comprises a lower bearing part 7 and an upper bearing part 8. The lower bearing part 7 includes a lower base plate 10 fixed to a structure 9 with an anchor bolt 13, a lower rib plate 11 installed on the lower base plate 10, and a spread plate 12 installed on the lower rib plate 11. The upper bearing part 8 includes an upper base plate 15 installed on the spread plate 12. The spread plate 12 and the upper base plate 15 are provided with a lower loose hole 14 and an upper loose hole 17 having long axes in directions crossing each other. The upper bearing part 8 is slidably joined with a joining bolt 18 passing through the upper loose hole 17 and the lower loose hole 14. The lower loose hole 14 is provided so as not to overlap with the anchor bolt 13 between two adjacent web plates 11a and 11b of the lower rib plate 11.

Description

  The present invention relates to a support structure for a roof frame, and a courtyard or an atrium surrounded by a plurality of buildings on three or four sides, for example, on a courtyard surrounded by a plurality of buildings such as a hotel or a high-rise building. This method is applied when a roof structure that is supported by a building and serves as a framework of the roof is bridged.

  When designing a building such as a hotel, large-scale commercial facility, office building, condominium, etc., cover a large space surrounded by multiple buildings on three or four sides with a roof made of a material that transmits light such as glass or acrylic panel ( There are many attempts to use it as an atrium.

  By the way, in the space surrounded by multiple buildings on three or four sides, to support the roof structure that is supported by these surrounding buildings, the way of shaking (natural period) of each building is different. Therefore, it is necessary for the support part of the roof frame to have a structure that can freely follow the shaking of the surrounding buildings.

  Conventionally, the support portion of this type of roof frame is configured to allow relative horizontal displacement of the roof frame relative to the lower structure building. For example, it is installed on the building side as shown in FIG. The lower support portion 30 and an upper support portion 31 installed on the roof frame side so as to be capable of relative horizontal displacement with respect to the building.

  The lower support portion 30 has a lower base plate 33 installed on a structure 32 such as a beam of a building, a plurality of lower rib plates 34 installed on the lower base plate 33, and a laid plate on the lower rib plate 34. It is comprised by installing 35.

  The lower base plate 33 and the laying plate 35 are formed in a rectangular plate shape, and the lower base plate 33 is fixed to the building structure 32 by a plurality of anchor bolts 36 penetrating through the four corners.

  The lower rib plate 34 is installed on the lower base plate 33 in parallel with each side of the lower base plate 33 and the laying plate 35, and is formed in a planar cross shape as a whole. Further, the lower rib plate 34, the lower base plate 33, and the laying plate 35 are integrally joined by welding to each other.

  Furthermore, a lower loose hole 37 is formed in each region portion partitioned into four regions by two adjacent lower rib plates 34, 34 of the laying plate 35. The lower loose hole 37 is formed as a long hole having a long axis parallel to one lower rib plate 34 of the two adjacent lower rib plates 34, 34.

  On the other hand, the upper support portion 31 is configured by installing an upper base plate 38 on the laying plate 35 and installing a plurality of upper rib plates 39 on the upper base plate 38. The upper base plate 38 is formed in a rectangular plate shape like the laying plate 35.

  Further, the upper rib plate 39 is installed in parallel with each side of the upper base plate 38 and is formed in a planar cross shape as a whole. The upper rib plate 39 is integrally joined to the upper base plate 38 by welding. A frame 43 of a roof frame is joined onto the upper rib plate 39 via a ball joint 42.

  Further, an upper loose hole 40 is formed in each region portion partitioned by two adjacent upper rib plates 39, 39 of the upper base plate 38, respectively. The upper loose hole 40 is formed as a long hole having a long axis in a direction perpendicular to the long axis of the lower loose hole 37 formed in the laying plate 35.

  The upper support portion 31 is connected to the lower support portion 30 by a plurality of joining bolts 41 penetrating the lower loose hole 37 and the upper loose hole 40, and the lower loose hole 37 and the upper loose hole 40 are orthogonal to each other. The upper bearing 31 can slide on the lower bearing 30 in two directions, so that the roof can freely follow the shaking of the surrounding buildings. can do.

Japanese Patent No. 3992410 JP-A-5-306547 No. 7-38488

  However, in the support portion having the structure shown in FIG. 7, the lower loose hole 37 and the upper loose hole 40 through which the connecting bolts are passed are formed in both the upper base plate 38 and the laying plate 35 in the direction perpendicular to each other. Therefore, when the lower rib plate 34 is installed in a plane cross shape as usual, the loose holes 37 and 40 need to be provided at positions away from the center of the support portion.

  Accordingly, it is necessary to considerably increase the sizes of the upper base plate 38 and the laying plate 35, and the anchor bolt 36 and the joining bolt 41 are installed at the same position on the plane. Therefore, there is a problem that not only the entire support portion becomes large and the installation becomes difficult, but also the manufacturing cost increases significantly.

  The present invention is an improved and developed conventional support structure that solves the above-mentioned problems, and provides a support structure for a roof structure that has a large follow-up effect against shaking of the lower structure and that can be manufactured in a compact and inexpensive manner. It is for the purpose.

According to the first aspect of the present invention, there is provided a lower support portion installed in the lower structure and a roof frame supported by the lower structure so as to allow relative horizontal displacement relative to the lower structure in the lower support portion. In the support structure of the roof frame composed of the upper support part installed in
The lower support portion includes a lower base plate fixed to the lower structure by a plurality of anchor bolts, a lower rib plate installed on the lower base plate, and a laying plate installed on the lower rib plate, The upper support portion includes an upper base plate installed on the laying plate, and the laying plate and the upper base plate each include a lower loose hole and an upper loose hole having long axes in directions intersecting with each other, and the upper support portion Is slidably joined on the lower support portion by joining bolts passing through the upper loose hole and the lower loose hole, and the lower rib plate is composed of a plurality of intersecting web plates, and the lower loose hole is formed on the lower rib plate. Do not overlap the anchor bolt between two adjacent web plates What is kicked is characterized in.

  In the present invention, the support portion of the roof frame is made as compact as possible, thereby facilitating the installation of the support portion and reducing the manufacturing cost.

  According to the present invention, by providing the lower loose hole between two web plates adjacent to each other in the lower rib plate, the lower loose hole can be provided near the center of the support portion, thereby reducing the laying plate. The entire support portion can be made compact.

  Furthermore, if the lower loose hole is provided so as to have a long axis on a line passing through the center of the lower rib plate (intersection of the plurality of web plates), the lower loose hole can be provided closer to the center of the support portion, The laying plate can be further reduced, and the entire support portion can be made compact.

  Further, by arranging the joining bolt and the anchor bolt so as not to overlap each other on the plane, it is not necessary to raise the laying plate and dodge the anchor bolt, so that the height of the entire support portion can be suppressed to be quite low.

  Note that the lower rib plate in this case has an X-type or cross-type arrangement in plan view, but the X-type arrangement is most preferable. Further, when the lower rib plate is in the X-type arrangement, the anchor bolt can be easily avoided from overlapping with the joining bolt by being arranged on the extension line of each web plate.

In particular, when the lower rib plate is in the X-shaped arrangement, it is desirable to arrange four joint bolts in principle. However, if there is no particular problem in strength, two joint bolts may be arranged symmetrically on both sides of the center of the support portion.

The invention according to claim 2 of the present application relates to a lower support portion installed in the lower structure and a roof frame structure supported by the lower structure so as to allow relative horizontal displacement with respect to the lower structure in the lower support portion. In the support structure of the roof frame composed of the upper support part installed in
The lower support portion includes a lower base plate fixed to the lower structure by a plurality of anchor bolts, a lower rib plate installed on the lower base plate, and a laying plate installed on the lower rib plate, The upper support portion includes an upper base plate installed on the laying plate, and the laying plate and the upper base plate each include a lower loose hole and an upper loose hole having long axes in directions intersecting with each other, and the upper support portion Is slidably joined on the lower support portion by a joining bolt that passes through the upper loose hole and the lower loose hole, the lower rib plate is formed in a ring shape or a cross beam shape, and the lower loose hole is formed outside the lower rib plate. Is provided so as not to overlap with the anchor bolt. .

  In the present invention, as in the first aspect of the invention, the support portion of the roof frame is made as compact as possible, thereby facilitating the construction of the support portion and reducing the manufacturing cost. is there.

  According to the present invention, since the lower rib plate is formed in an annular (ring shape) that is extremely effective in strength, the laying plate can be made small, thereby making the entire support portion compact. it can.

  Further, by arranging the joining bolt and the anchor bolt so as not to overlap each other on the plane, it is not necessary to raise the laying plate and dodge the anchor bolt, so that the height of the entire support portion can be suppressed to be quite low.

  In this case, the lower rib plate has a rectangular arrangement, a circular arrangement, or a cross arrangement, and a polygon arrangement such as a pentagon, hexagon, octagon, etc. It is preferable because it can be easily obtained by cutting a steel pipe or a square steel pipe into an appropriate size. Further, the overlap between the anchor bolt and the joining bolt can be easily avoided.

  According to the invention described in claim 1, by providing the lower loose hole between the two adjacent web plates of the lower rib plate, the lower loose hole can be provided near the center of the support portion. The lay plate can be made small, and the entire support portion can be made compact.

  Further, according to the invention described in claim 2, since the lower rib plate is formed in a ring (ring shape) that is extremely effective in terms of strength, the lay plate can be made small, and thus the entire support portion can be reduced. It can be made into a compact form.

  In any of the inventions, by arranging the joining bolt and the anchor bolt so that they do not overlap on the plane, it is not necessary to raise the laying plate and dodge the anchor bolt. Can do.

It is a side view which shows the roof frame | frame used as the framework of the roof installed by supporting the surrounding building on the courtyard enclosed with the some building. The support part of a roof frame is shown, (a) is a side view, (b) is a cross-sectional view taken along the line II in FIG. (A), (c) is a cross-sectional view taken along the line, and (d) is a ha-ha. It is line sectional drawing. The support part of a roof frame is shown, (a) is a side view, (b) is a cross-sectional view taken along the line II in FIG. (A), (c) is a cross-sectional view taken along the line, and (d) is a ha-ha. It is line sectional drawing. The support part of a roof frame is shown, (a) is a side view, (b) is a sectional view taken along the line II in FIG. (A), (c) is a sectional view taken along the line, and (d) is a half It is line sectional drawing. The support part of a roof frame is shown, (a) is a side view, (b) is a sectional view taken along the line II in FIG. (A), (c) is a sectional view taken along the line, and (d) is a half It is line sectional drawing. The support part of a roof frame is shown, (a) is a side view, (b) is a cross-sectional view taken along line II in FIG. It is line sectional drawing. The conventional example of the support part of a roof frame is shown, (a) is a side view, (b) is a cross-sectional view taken along the line II in FIG. (A), (c) is a cross-sectional view taken along the line, and (d) is a cross-sectional view. FIG.

  FIG. 1 and FIGS. 2A to 2D show an embodiment of the present invention. In the figure, a courtyard (atrium) 3 is provided between adjacent buildings 1 and 2, and an upper portion of the courtyard 3 is shown. A roof frame 4 having a truss structure, which is a frame of the roof, is stretched over the bridge.

  One end side of the roof frame 4 is supported on the roof portion of the building 1 by the support portion 5 of the roller support structure, and the other end side is supported on the roof portion of the building 2 by the support portion 6 of the pin support structure. The support part 5 includes a lower support part 7 installed on the building 1 side and an upper support part 8 installed on the roof frame 4 side.

  The lower support portion 7 includes a lower base plate 10 installed on a structure 9 such as a beam or a column, a lower rib plate 11 installed on the lower base plate 10, and a laying plate installed on the lower rib plate 11. 12.

  The lower base plate 10 is formed in a rectangular plate shape, and is fixed to the structure 9 by a plurality of anchor bolts 13 penetrating the four corners. The lower rib plate 11 is formed in an approximately X shape when seen in plan view from one web plate 11a and two web plates 11b and 11b.

  The web plate 11a is formed in an isosceles trapezoidal shape when the upper end is viewed from the side, and is installed on one diagonal passing through the center of the lower base plate 10.

  The web plate 11 b is formed in a right trapezoidal shape with the upper end side as the bottom when viewed from the side, and is installed on the other diagonal line passing through the center of the lower base plate 10. The two web plates 11b and 11b are installed on both sides of the web plate 11a with the web plate 11a sandwiched between the web plate 11a and the X shape.

  The web plate 11a and the web plate 11b are integrally welded onto the lower base plate 10, and the two web plates 11b are integrally welded to the side surface of the web plate 11a.

  The laying plate 12 is formed in a rectangular plate shape larger than the lower base plate 10. Further, a lower loose hole 14 is formed in each region portion partitioned by the two web plates 11a and 11b. The lower loose hole 14 is formed to have a long axis on a line that passes through the center of the laying plate 12 and bisects the web plate 11a and the web plate 11b.

  The upper support 8 is composed of an upper base plate 15 installed on the laying plate 12 and an upper rib plate 16 installed on the upper base plate 15.

  The upper base plate 15 is formed in a rectangular plate shape smaller than the laying plate 12. Similar to the lower rib plate 11, the upper rib plate 16 is formed in a substantially X shape when viewed in plan from one web plate 16 a and two web plates 16 b.

  The web plate 16 a is formed in an isosceles trapezoidal shape when the bottom end is viewed from the side, and is installed on one diagonal line passing through the center of the upper base plate 15. The web plate 16b is formed in a right-angled trapezoidal shape when the bottom side is the bottom when viewed from the side, and on the other diagonal line passing through the center of the upper base plate 15 with the web plate 16a interposed therebetween and intersecting with the web plate 16a. is set up.

  The web plate 16a and the rib plate 16b are integrally welded onto the upper base plate 15, and the two web plates 16b are integrally welded to the side surface of the web plate 16a.

  The frame 4 a of the roof frame 4 is joined to the upper rib plate 16 via a ball joint 19. It is also possible to form the roof frame 4 from a shape steel and to join the upper rib plate 16 via a string material made of the shape steel.

  Moreover, the upper loose hole 17 is formed in each area | region part partitioned off by the web plates 16a and 16b. The upper loose hole 17 is formed to have a major axis in a direction parallel to each side of the upper base plate 15 and perpendicular to the lower loose hole 14.

  The lower bearing portion 7 and the upper bearing portion 8 are joined by a plurality of joining bolts 18 penetrating between the corresponding lower loose hole 14 and upper loose hole 17.

  Further, since the lower loose hole 14 and the upper loose hole 17 are formed to have long axes in directions orthogonal to each other, the upper support portion 8 can slide on the lower support portion 7 in two directions. Thereby, the roof frame 4 can follow the shaking of the buildings 1 and 2 freely.

  The sliding portion between the lower support portion 7 and the upper support portion 8 reduces horizontal frictional resistance by interposing a seat plate and a sliding pad between the laying plate 12 and the upper base plate 15. It is configured.

  3A to 3D show another embodiment of the present invention. In the embodiment described in FIGS. 1 and 2, the laying plate 12 and the upper base plate 15 are replaced, and the laying in the embodiment of FIGS. The plate 12 is installed as the upper base plate 15, and the upper base plate 15 is installed as the laying plate 12. Other configurations are as described in the embodiment of FIGS.

  4 (a) to 4 (d) show another embodiment of the present invention, in which the lower rib plate 11 is formed in a cross-like shape when seen in a plan view, and the lower loose hole 14 of the laying plate 12 is formed in the lower rib plate 11. It is formed outside.

  More specifically, the lower rib plate 11 is formed of a plurality of web plates, and the web plate on each side is near the periphery of the lower base plate 10 and the laying plate 12 and in parallel with each side of the lower base plate 10 and the laying plate 12. And both ends are installed in a state where they intersect at right angles at the four corners of the lower base plate 10 and the laying plate 12.

  Further, the lower loose hole 14 of the laying plate 12 is formed in the outer region portion of the lower rib plate 11 with a long axis parallel to each side of the laying plate 12. A joining bolt 18 is mounted between the corresponding lower loose hole 17 of the lower loose hole 14 and the upper base plate 15. Other configurations are as described in the embodiment of FIGS.

  5 (a) to 5 (d) also show other embodiments of the present invention, in which the lower rib plate 11 is formed in a square shape when viewed from above, and the lower loose hole 14 of the laying plate 12 is formed in the lower rib plate 11. It is formed outside.

  More specifically, the lower rib plate 11 is formed of a plurality of web plates, and the web plates on each side are installed near the peripheral edges of the lower base plate 10 and the laying plate 12 and in parallel with the respective sides of the lower base plate 10 and the laying plate 12. Has been.

  Further, the lower loose hole 14 of the laying plate 12 is formed in the outer region portion of the lower rib plate 11 with a major axis in a direction parallel to each side of the laying plate 12. A joining bolt 18 is mounted between the corresponding lower loose hole 17 of the lower loose hole 14 and the upper base plate 15. Other configurations are as described in the embodiment of FIGS.

    6 (a) to 6 (d) also show other embodiments of the present invention, in which the lower rib plate 11 is formed in a circular shape when viewed from above, and the lower loose hole 14 of the laying plate 12 is formed in the lower rib plate. 11 is formed outside.

  The lower loose hole 14 is formed in the outer region of the lower rib plate 11 and has a long axis in a direction parallel to each side of the plate 12. A joining bolt 18 is mounted between the corresponding lower loose hole 17 of the lower loose hole 14 and the upper base plate 15. Other configurations are as described in the embodiment of FIGS.

  INDUSTRIAL APPLICABILITY The present invention can provide a support structure for a roof frame body that has a large follow-up effect with respect to shaking of the building of the lower structure, and can be manufactured in a compact and low cost.

1 Building (Substructure)
2 Building (Substructure)
3 Courtyard (Atrium)
4 roof frame 5 bearing part 6 bearing part 7 lower bearing part 8 upper bearing part 9 structure 10 lower base plate 11 lower rib plate 12 laying plate 13 anchor bolt 14 lower loose hole 15 upper base plate 16 upper rib plate 17 upper loose hole 18 Joint bolt 19 Ball joint

Claims (2)

A lower bearing portion installed in the lower structure and an upper bearing portion installed in the roof frame supported by the lower structure so as to allow relative horizontal displacement with respect to the lower structure in the lower bearing portion. In the support structure of the roof frame,
The lower support portion includes a lower base plate fixed to the lower structure by a plurality of anchor bolts, a lower rib plate installed on the lower base plate, and a laying plate installed on the lower rib plate, The upper support portion includes an upper base plate installed on the laying plate, and the laying plate and the upper base plate each include a lower loose hole and an upper loose hole having long axes in directions intersecting with each other, and the upper support portion Is slidably joined on the lower support portion by joining bolts passing through the upper loose hole and the lower loose hole, and the lower rib plate is composed of a plurality of intersecting web plates, and the lower loose hole is formed on the lower rib plate. Do not overlap the anchor bolt between two adjacent web plates The support structure of the roof rack assembly which is characterized by being kicked. A lower bearing portion installed in the lower structure and an upper bearing portion installed in the roof frame supported by the lower structure so as to allow relative horizontal displacement with respect to the lower structure in the lower bearing portion. In the support structure of the roof frame,
The lower support portion includes a lower base plate fixed to the lower structure by a plurality of anchor bolts, a lower rib plate installed on the lower base plate, and a laying plate installed on the lower rib plate, The upper support portion includes an upper base plate installed on the laying plate, and the laying plate and the upper base plate each include a lower loose hole and an upper loose hole having long axes in directions intersecting with each other, and the upper support portion Is slidably joined on the lower support portion by a joining bolt that passes through the upper loose hole and the lower loose hole, the lower rib plate is formed in a ring shape or a cross beam shape, and the lower loose hole is formed outside the lower rib plate. The roof frame is provided so as not to overlap the anchor bolt Support structure of.

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