JP-7855458-B2 - Beam structure, roof structure with beam structure, and construction method of beam structure

Inventors

• ▲高▼橋 通博
• 林 正一郎

Assignees

• 株式会社LIXIL

Dates

Publication Date

20260508

Application Date

20220826

Claims (5)

1. A beam having a beam body extending in a predetermined direction, and a lower projection plate that protrudes outward in the width direction of the beam body at the lower part of the beam body, The beam includes a beam cover attached to the lower part of the beam, The beam cover has a mating fixing portion that is fixed to the beam body by mating, and a screw fixing portion that is fixed to the lower protruding plate with screws. The fitting and fixing portion comprises a positioning portion that restricts the movement of the beam cover toward the lower protruding plate while allowing the beam cover to move toward and away from the beam body, and a fitting portion that fits into the beam body, thus forming a beam structure.
2. The beam body comprises a beam component and an attachment component fixed to the beam component. The beam structure according to claim 1, wherein the attachment portion is provided with a mating portion that is mated with the mating portion of the beam cover.
3. A beam structure according to claim 1 or 2, A roof structure comprising a roof body positioned below the beam and suspended from the beam.
4. The roof structure according to claim 3, wherein the lower surface of the roof body and the lower surface of the beam cover are arranged on the same plane or substantially on the same plane.
5. A construction method for a beam structure in which a beam cover is attached to the beam, The beam comprises a beam body extending in a predetermined direction and a lower projection plate at the lower part of the beam body that protrudes outward in the width direction of the beam body. The beam cover is attached to the lower part of the beam and has a mating fixing part that is fixed to the beam body by mating and has a positioning part and a mating part, and a screw fixing part that is screw fixed to the lower protruding plate. At one end of the beam in the width direction, the hooking step involves hooking the screw fixing portion of the beam cover onto the lower protruding plate, Following the hooking step, a positioning step is performed in which, at the other end of the beam in the width direction, the beam cover is positioned by restricting its movement toward the lower protruding plate side while allowing it to move toward and away from the beam body by the positioning portion of the beam cover, After the positioning step, there is a fitting step in which the fitting portion of the beam cover is fitted onto the beam body, A method for constructing a beam structure, comprising a fixing step of screw fixing the screw fixing portion to the lower protruding plate after the fitting step.

Description

This disclosure relates to a beam structure, a roof structure incorporating a beam structure, and a method for constructing a beam structure. Conventionally, a beam structure is known in which a beam is provided and a roof structure is attached to the underside of the beam (see Patent Document 1). The beam structure described in Patent Document 1 has fins (lower projection plates) that protrude outward in the width direction of the beam body at the lower part of the beam body in order to attach members such as the roof structure to the underside of the beam body. The roof structure is fixed to the fins of the beam when it is attached to the underside of the beam. Japanese Patent Publication No. 2018-123652 This is a perspective view of a carport according to one embodiment, seen from an oblique upward angle.This is a perspective view of a carport according to one embodiment, seen from a diagonally downward angle.This is a plan view of a carport according to one embodiment.This is a cross-sectional view taken along line A-A in Figure 3.This is a perspective view from diagonally above, showing a beam with a beam cover attached.This is a perspective view from a diagonal downward angle, showing the beam with the beam cover attached.This is a cross-sectional view taken along line B-B in Figure 5.This diagram shows the procedure for attaching a beam cover to a beam, specifically the state in which the screw fixing part of the beam cover is hooked onto the lower protruding plate of the beam.This diagram shows the procedure for attaching a beam cover to a beam, and illustrates the state in which the positioning part restricts the movement of the beam cover toward the lower protruding plate side to position it.This diagram shows the procedure for attaching a beam cover to a beam, specifically the state in which the mating portion of the beam cover is mated to the beam-side mating portion of the beam body.This diagram shows the procedure for attaching a beam cover to a beam, and illustrates the state in which the screw fixing part is positioned on the upper surface of the lower protruding plate of the beam while rotating the beam cover 35 around the mating part of the beam body and the beam-side mating part of the beam body. The following describes an embodiment of the roof structure including the beam structure of this disclosure, with reference to the drawings. In this embodiment, an example of applying the roof structure to a carport 1 will be described. The carport 1 has a parking space for one or more cars below the roof body 4. While this embodiment describes an example of applying the roof structure to a carport 1, it is not limited to this. Furthermore, the roof structure may be applied to structures other than carports, such as bicycle parking areas, shelters, rest areas, terraces, bus stops, and so on. In this description, the direction in which the beam 3 of the carport 1 extends, and which is perpendicular to the direction in which the elongated profiles (elongated members) 41 extend, is also referred to as the left-right direction X (the direction intersecting the longitudinal direction of the elongated profiles 41). Furthermore, in the left-right direction X in which the beam 3 extends, one side (the front left in Figure 1) is also referred to as the X1 side, and the other side (the rear right in Figure 1) is also referred to as the X2 side. The direction in which the multiple elongated profiles (elongated members) 41 constituting the roof body 4 of the carport 1 extend is also referred to as the front-back direction Y (the longitudinal direction of the elongated profiles 41). Furthermore, in the front-back direction Y in Figure 1, the front right side of the carport 1 is also referred to as the front side, and the rear left side of the carport 1 is also referred to as the rear side. First, the overall structure of the carport 1 of this embodiment will be described. As shown in Figures 1 to 3, the carport 1 of this embodiment is a so-called double-supported carport, where the roof body 4 is supported by a pair of support columns 2 on each side in the left-right direction X. Furthermore, the carport 1 of this embodiment is constructed with a suspension structure, where the roof body 4 is suspended and connected to the lower part (below) of the beam 3 connected to the support columns 2. The carport 1 of this embodiment is a so-called beam-extended carport, where the length of the beam 3 is extended from the portion where the roof body 4 is located. In the longitudinal direction of the beam 3, the lower part of the portion extended from the portion where the roof body 4 is located does not have a roof body 4; instead, a beam cover 35 is attached. As shown in Figures 1 to 3, the carport 1 of this embodiment comprises two pairs of support columns 2 (column members) erected on the ground 11, two beams 3 extending from the upper ends of the support columns 2 in a direction intersecting the support columns 2, a