JPH04127315U - Structural support structure - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the cross-sectional area of columns and beams, reduce the number of columns installed, and improve the strength against horizontal loads transmitted from the beams. [Configuration] A pillar (5) with a main pillar (6) and four sub-pillars (8) on the first floor (1) of the multi-story parking lot (P)
The main support (6) is erected, and at the upper end of this main support (6),
The sub-pillars (8) are radially fixed diagonally upward, and the vertical beams (19) are fixed so as to pass through the tip of each sub-pillar (8).
and the cross beams (20) are assembled in a parallel cross-shape. Each beam (19, 2
By dispersing and reducing the stress applied to the joints of each beam (19, 20) and each sub-pillar (8) due to the horizontal load from Obtain a strut structure.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a column structure suitable for structures such as steel-framed multi-story parking lots. do.

0002

[Conventional technology]

In recent years, with the widespread use of automobiles, the demand for parking lots has increased, but land In order to make effective use of parking spaces, multi-story parking lots are often used. This multistory parking lot One type of structure is a steel frame with multiple horizontal parking floors connected by a sloped driveway. It is a structure in which the parking floor on the first floor is made of concrete, and the parking floor on the second floor and above is Some car floors are made up of mesh-like metal panels. child The steel structure of a multi-story parking lot like Rui is a simple ramp consisting of a beam made of H-beam steel, etc., strung over the top of a support made of steel pipes, etc. It has a main structure.

0003

[Problem that the idea aims to solve]

In this type of support structure that supports beams, the horizontal loads caused by earthquakes, etc. can be absorbed by the beams. When the support is subjected to horizontal load, the horizontal load is directly transmitted to the support and the load bends the support. The stress is large, and the stress is concentrated at the joint between the column and the beam. Therefore, the number of posts or by increasing the cross-sectional area of the pillars and beams, that is, increasing their strength. In addition, in order to increase the joint strength of the pillar and beam, the joint structure must be It's getting complicated.

0004 This invention was made in view of the above circumstances, and it reduces the cross-sectional area of columns and beams. In addition to reducing the number of beams installed, it also increases the strength against horizontal loads transmitted from the beams. The purpose of the present invention is to provide a support structure for a structure that improves the performance of the structure.

[0005]

[Means to solve the problem] The present invention has been made to achieve the above object, and is claimed as claim 1. , the main support is erected on the floor directly below the center of the cross beam of the beam, at a predetermined distance from the beam. A connecting member is spanned between the upper end of the main support and each intersection of the parallel beams. It is characterized by According to a second aspect of the invention, the connecting member is a pipe-shaped sub-support. It is characterized in that it is a pillar, and furthermore, as claim 3, the connecting member includes at least It is also characterized in that it is a cone-shaped body that supports each of the intersection points.

[0006]

[Effect]

According to the support structure of the structure of the present invention, horizontal loads from beams caused by earthquakes, etc. Although the beams are directly supported by the connecting members, the beams assembled in the shape of a grid are assembled in a triangular shape when viewed from the side. The stress applied to the joint between the two is dispersed because it is supported by a connecting member that is Therefore, the horizontal load is difficult to transfer to the main column, and a high-strength column structure is required. structure is obtained. As a result, the number of columns or the cross-sectional area of columns or beams can be reduced. is possible.

[0007]

【Example】

An embodiment of the present invention will be described below with reference to the drawings. Figure 1 shows the strut structure of the present invention. A two-story multistory parking lot built in a rectangular space S using (Structure) An overall side view of P, Figure 2 is a side view in the Q direction of Figure 1, and Figure 3 is its plan view. This multi-story parking lot P has a parking floor (floor part; hereinafter abbreviated as the 1st floor) on the 1st floor. is formed horizontally with concrete, and the second floor parking floor (hereinafter abbreviated as the second floor) ) 2 consists of a large number of mesh-like metal panels 3 laid horizontally, with upper and lower flaps. It has a steel frame structure in which the lowers 1 and 2 are connected by a sloped roadway 4. In addition, Figure 3 does not show the inclined roadway 3.

[0008] To explain this steel structure in detail, first, as shown in Fig. 3, the length of the space S is A row of pillars consisting of multiple pillars (5 in this case) at equal intervals across both ends of the direction. 5 are arranged in one row at appropriate intervals from both ends of the space S in the width direction. Ru. As shown in FIGS. 4 to 7, these struts 5 are comprised of a main strut 6 made of steel pipes and a It is connected to the upper end of the main column 6 via the joint fitting 7, and extends radially diagonally upward. A plurality of extending (four in this case) sub-pillars (connecting members) 8 and the tops of adjacent sub-pillars 8 It is composed of a reinforcing beam 9 extending horizontally between the ends.

[0009] The support column 5 has a base plate 10 welded to the lower end of the main support column 6. Constructed with gravel 11, concrete foundation slab 12 and platform 1 The foundation 14 consisting of 3 is fixed to the stand 13 by anchor bolts 15. Therefore, the main support 6 is vertically erected on the first floor 1.

0010 The joint fitting 7 has a disc-shaped flange 16 whose diameter is slightly larger than the outer diameter of the main support 6. Welded half-moon-shaped partition plates 17 and 17 arranged in a cross shape on one side of the The flange 16 is horizontal, and each partition plate 17 has a length of the space S. If the partition plates 17 and 17 are not welded along the direction and width direction, respectively. The back surface of the flange 16 is welded to the upper end surface of the main strut 6. And this succession Four recesses formed by the flange 16 and the partition plates 17 and 17 of the hand fitting 7 Sub-pillars 8 are fixed to each corner.

[0011] These sub-pillars 8 are made of steel pipes with a slightly smaller diameter than the main props 6, and are the same as each other. It has the same length and extends diagonally upward at an angle of about 45 degrees to the main support 6, and It is welded to the flange 16 of the metal fitting 7 and the partition plates 17. these four As is clear from FIG. It extends radially evenly in the direction, so if you connect the ends, it will form a square. The sea urchin is turning. The tip surface is cut horizontally into an elliptical shape. A square joint plate 18 is horizontally welded to this tip surface. This joint plate 18 has each side along the length direction or width direction of the space S. Also, next door A reinforcing beam 9 made of steel pipe, which is thinner than the sub-posts 6, is placed horizontally between the upper ends of the sub-posts 6 that match. It is being spanned.

0012 In the column 5 having the above structure, the height of the main column 6 occupies approximately 70% of the entire column 5. I'm looking forward to it.

[0013] Now, as shown in FIGS. 3 and 4, there is a space S in the length direction of the support 5. The vertical beam 19 along the width direction and the horizontal beam 20 along the width direction pass over the joint plate 18. Therefore, these longitudinal beams 19 and cross beams are 20 are arranged in a parallel grid pattern. That is, from these longitudinal beams 19 and horizontal beams 20 The main support 6 is erected on the first floor 1 directly below the center of Igata. A sub-pillar 8 is spanned from the upper end of the column 6 to each intersection of the vertical beam 19 and the horizontal beam 20. It is. Both the longitudinal beam 19 and the horizontal beam 20 have flanges 21, 21 and webs. 22, and the lower flange 21 and the joint plate 18 are attached between them. The vertical beams 19 and 19 are connected to the column 5 by bolts with the support plate 23 in between. A cross beam 20 is fixed and supported.

[0014] On top of the longitudinal beam 19 and the horizontal beam 20, there are a number of rectangular mesh metal panels. A second floor 2 is constructed by installing a second floor 3. These metal panels 3 are one It is laid between each pair of cross beams 19 and 19 which are spanned over the pillars 5 of The width is slightly longer or shorter than the half length between the upper ends of the adjacent sub-pillars 8 and 8. The metal panel 3A has the same width as this short metal panel 3A, and each pair of cross beams 1 A long metal panel laid across the adjacent cross beams 19 and 19. There are two types: 3B.

[0015] As shown in FIG. 4, each metal panel 3 (3A, 3B) has a vertical frame 24 having a U-shaped cross section. A panel body 26 made of metal mesh is stretched on the upper surface of the horizontal frame 25, and the vertical frame 25 A plurality of reinforcing members 27 are assembled between the vertical frames 24 and horizontal frames 25. , placed on the vertical beam 19 and the horizontal beam 20, and provided on the vertical frame 24 and the horizontal frame 25. By connecting connecting plates (not shown) with bolts, adjacent ones can be connected. tied together. The second floor 2 is configured in this way, and the sloped carriageway The road surface of No. 4 is also constructed of metal panels 3 in the same way. In addition, the second floor floor 2 On the sides of the ramp and sloped roadway 4, waist walls are installed to ensure safety, such as preventing cars from falling. 28 is erected.

[0016] In the multi-story parking lot P with the above configuration, as shown in FIG. In the case of the lower 1, two cars are placed between each of the pillars 5 that line up in the length direction of the space S. Park with the front and back direction of the car along the width direction of space S, and park on the 2nd floor floor 2. is the state in which the vehicle body is oriented in this direction on both sides of the space S in the width direction. You are supposed to park there. In addition, the center in the width direction of both floors 1 and 2 is It becomes a road.

[0017] However, according to the pillar 5 of the multi-story parking lot P, the vertical beam 1 caused by an earthquake etc. The horizontal loads from the horizontal beams 9 and cross beams 20 are directly received by the four sub-pillars 8. The vertical beams 19 and horizontal beams 20 are assembled in a triangular shape when viewed from the side, and Because the support is stronger, the stress applied to the joint between the two is dispersed and reduced. Therefore, the horizontal load is difficult to be transmitted to the main column 6, and a high-strength column structure can be obtained. Ru. As a result, it was found that there was no need to increase the number of supports to improve strength. In addition, it is possible to reduce the cross-sectional area of columns and beams.

[0018] In FIG. 8, a straight line 30 indicated by a one-dot chain line and a circle 31 indicated by a two-dot chain line are, respectively, The arrangement of beams and columns when provided in space S using a conventional column structure is As shown in the figure, in the conventional support structure, compared to that in this example, In this case, the number of pillars would be twice as necessary, and the pillars would need to be placed closer to the center roadway. Therefore, it becomes difficult to move car C into and out of the parking space. in this way, In the case of this embodiment, the number of columns 5 can be reduced, and the number of columns 5, vertical beams 19 and horizontal beams 19 can be reduced. Since the connection of the beams 20 is simply a bolt connection, the construction is easy and the construction time can be shortened. It will be planned.

[0019] In addition, although the above embodiment shows four sub-pillars 8 as connecting members, In addition to this, the lower flanges of the longitudinal beams 19 and cross beams 20 assembled in a cross-shaped structure are 21 and each of these intersection points, and is a pyramid-shaped body that converges at the upper end of the main support 6. may be configured.

[0020] In addition, the present invention is not limited to multi-level parking lots as in the above embodiment, but can also be used in general areas such as warehouses and factories. It can be applied to various structures.

[0021]

[Effect of the idea]

As explained above, according to the support structure of the structure of the present invention, the horizontal load from the beam The stress applied to the joint between the beam and the connecting member is dispersed and reduced, and therefore, Horizontal loads are difficult to transfer to the main struts, resulting in a high-strength strut structure; It has the effect of being able to reduce the number of columns and the cross-sectional area of columns and beams. Ru.

[Brief explanation of drawings]

FIG. 1 is a side view of a multi-story parking lot to which an embodiment of the present invention is applied.

FIG. 2 is a side view in the Q direction of FIG. 1;

FIG. 3 is a plan view of the multi-story parking lot excluding the sloped driveway.

FIG. 4 is a perspective view showing a support structure of one embodiment.

FIG. 5 is a plan view of essential parts of the same structure.

FIG. 6 is a view taken along the line RR in FIG. 5;

7 is a view taken along the line SS in FIG. 5; FIG.

FIG. 8 is a plan view for comparing and explaining a conventional example and an embodiment.

[Explanation of symbols]

1 1st floor parking floor (floor) 5 Pillar 6 Main support 8 Sub-pillar (connecting member) 19 Longitudinal beam 20 Cross beam P Multi-story parking lot (structure)

Claims (3)

[Scope of utility model registration request] [Claim 1] A strut structure that is erected on the floor of a structure and supports a beam arranged in a cross-shaped structure on the upper layer of the floor, wherein the pillar is installed at a predetermined distance from the beam on the floor immediately below the center of the cross-shaped cross of the beam. 1. A support structure for a structure, characterized in that a main support is erected at a distance, and a connecting member is spanned from the upper end of the main support between each intersection of parallel beams. 2. The support structure for a structure according to claim 1, wherein the connecting member is a pipe-shaped sub-support support. 3. The support structure for a structure according to claim 1, wherein the connecting member is a cone-shaped body that supports at least each of the intersection points.