JP2014227823A - Mounting structure for fall preventing shelf support of multistory parking space - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fall preventing shelf support which can reduce dimensions of a material for the fall preventing shelf support for being mounted on a wall surface of a building of a self-running type multistory parking space, which can reduce labor for working in a factory, and which has proper workability.SOLUTION: A rib plate 3 is attached to a fall preventing shelf support 1 to shorten a distance between a fulcrum and a point of a lever where a force is applied and to decrease bending moment. A bolt joint makes a girder 4 and the fall preventing shelf support 1 turned into a pin support. Thus, the bending moment is decreased so that the fall preventing shelf support 1 can be thinned.

Description

  The present invention relates to a mounting structure for a shelf column for preventing falling of a multi-story parking lot.

  Conventionally, the installation of shelves to prevent the vehicle from falling on the outer peripheral wall side of the multistory parking lot has been obligated by a notification from the Ministry of Construction (1986). Generally, shelves for preventing falls of steel members and reinforced concrete are installed. Moreover, a shelf prevention column support as shown in Patent Document 1 has also been devised.

JP 2000-96863 A

  The wall of the building of the self-propelled multilevel parking garage is provided with a car fall prevention shelf having a height of about 60 cm to prevent the car from falling from the outer wall surface.

  When the car collides with the shelf column, the shelf column is welded to the beam to attenuate the energy of the collision of the vehicle and reliably transmit the stress to the main building structure. There is a problem that construction is troublesome and costly because it is necessary to increase the size of the shelf posts or the like or to increase the pitch between the shelf posts.

  The present invention has been made to solve such a problem. The object of the present invention is to attach a rib plate to a shelf column so that the distance between the force point and the fulcrum is shortened and the bending moment is reduced. In addition, since the large beam and the shelf support are pin-supported by the bolt connection, the bending moment is reduced, and the shelf support can be thinned.

  Furthermore, the work effort in the factory can be reduced by bolting the girder and the shelf column.

  According to the present invention, the shelf column becomes thin, the weight is reduced, the workability is good, and the cost can be reduced.

It is sectional drawing which shows the attachment structure of the shelf support | pillar for fall prevention of the multilevel parking lot of Example 1 which concerns on this invention. FIG. 2 is a cross-sectional view taken along line A-A ′ of FIG. 1. It is a perspective view which shows the attachment structure of the shelf support | pillar for fall prevention of the multilevel parking lot of Example 1 which concerns on this invention. It is sectional drawing which shows the attachment structure of the shelf support | pillar for fall prevention of the multi-story parking lot of Example 2 which concerns on this invention. FIG. 2 is a sectional view taken along line B-B ′ of FIG. 1. It is sectional drawing which shows the attachment structure of the shelf support | pillar for fall prevention of Example 1 which concerns on this invention, (A) is a 1st construction state, (B) is a 2nd construction state, (C) is a 3rd construction state, FIG. It is a bending moment figure at the time of attaching the rib plate which concerns on this invention. It is a bending moment figure in case the rib plate is not attached.

  As shown in FIG. 8, the bending moment diagram of the conventional shelves for fall prevention has a rigid joint at the joint between the girder and the shelf column, so the bending moment is maximized at the junction, and the material of the shelf column that can handle the stress. Dimensions are required. On the other hand, the bending moment diagram of the present invention in FIG. 7 shows that the bending moment at the upper end of the rib plate is maximized because the upper end of the rib plate is a fulcrum, and the joint between the beam and the shelf column is a pin support. Since the material size can be accommodated, the material size can be made thinner than the conventional fall prevention shelf column.

  The joint between the girder and the shelves is not welded, but is bolted, which reduces the processing effort at the factory and makes it easy to perform on-site construction.

  Embodiments of the present invention will be described with reference to the drawings.

  1 to 7, 1 is a fall prevention shelf column, 2 is a guard rail, 3 is a rib plate, 4 is a large beam, and 5 is a floor beam. , 6 is a floor, 7 is a rib bottom plate, 8 is a mounting bolt, 9 is a shelf for preventing falls, and 10 is a shelf support plate.

  When the guard rail 2 is attached to the side surface of the shelf post, the rib plate 3 is located at an intermediate position from the upper end of the floor surface to the upper end of the guard rail 2 or when the guide rail is attached to the upper end of the shelf post. It is attached to a height of 5 cm to 10 cm from the upper end of the.

  In this example, the shape of the rib plate 3 is a trapezoidal shape or a one-sided trapezoidal shape with a trapezoidal end cut out.

  A rib bottom plate 7 is disposed horizontally at the lower end of the lip plate 3.

  In this example, 4 to 6 holes are formed in the rib bottom plate 7 for bolting the large beam 4.

  In the construction method, as shown in FIG. 6A, the rib plate 3, the rib bottom plate 7, and the shelf column plate 10 are welded to the fall-preventing shelf column 1 in advance at the factory.

  Next, as shown in FIGS. 6B and 6C, in the fall prevention shelf 9 installed on the outer wall of the multistory parking lot, the guard rail 2 and the girder 4 supported by the fall prevention shelf column 1 are supported. And the rib bottom plate 7 and the shelf column plate 10 welded to the shelf column 1 for preventing fall are respectively bolted by using the mounting bolts 8.

  Thereafter, concrete is placed on the floor 6.

  Another embodiment of the invention according to claims 1 and 2 will be described. 4 and 5, the guardrail is attached to the upper part of the fall prevention shelf column.

  Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the invention. The shelf column is not limited to the H-type steel column, and may be various types of steel columns such as square steel.

  Although the present invention was developed for a multi-story parking lot, it can also be applied to a shelf column for preventing falls of various buildings and structures.

DESCRIPTION OF SYMBOLS 1 Fall prevention shelf support 2 Guard rail 3 Rib plate 4 Large beam 5 Floor beam 6 Floor 7 Rib bottom plate 8 Mounting bolt 9 Fall prevention shelf 10 Shelf support plate

Claims (2)

In the fall prevention shelf installed on the outer wall of the multistory parking lot, it is attached to a plurality of shelves and when the guardrail is attached to the side of the shelves, it is from the top of the floor to the top of the guardrail. Rib plate with a trapezoidal shape or a trapezoidal shape with a trapezoidal or trapezoidal end notched when mounted at an intermediate position or when the guardrail is attached to the upper end of a shelf post And a lip bottom plate arranged horizontally at the lower end of the lip plate,
A structure for mounting a shelf column for preventing falls, wherein 4 to 6 holes are formed in the rib bottom plate for bolting with a large beam.   2. The fall prevention according to claim 1, wherein a plurality of shelf columns are bolted as pin supports to a large beam which is a main structure of a building in a fall prevention shelf installed on an outer wall of a multistory parking lot. Mounting structure for shelf support.

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