Beam support structure

Abstract

To provide a beam support structure capable of ensuring a strength sufficient to withstand a load from above even when it is structurally difficult to provide columns to support a beam.SOLUTION: A support structure of a beam 31 that supports a structure body extending outward from a building 1 comprises: an attachment portion 110 attached to a stud 60 provided at an indoor side of an exterior wall 50 constituting the building 1; and a protrusion portion 120 joined to the attachment portion 110 and protruding to an outdoor side from an opening 50a formed in the exterior wall 50. The protrusion portion 120 supports at least one end of the horizontally extending beam 31 from below.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a support structure for a beam.

Background Art

[0002] Conventionally, a beam spanning inside a building is generally supported by a column. For example, the load from above is dispersed by a column through a beam constituting the ceiling portion of the upper floor of the building, or a beam constituting an eaves or a balcony protruding from the building.

[0003] Patent Document 1 discloses an attachment structure for a cantilever balcony protruding from a balcony body constructed on the upper surface of the lower floor of a building. The cantilever balcony is supported by the balcony body installed on the upper surface of the building via a mounting bracket, a reinforcing beam, and a joint bracket. The lower end of the handrail column of the balcony body is connected to the upper end of the column of the first-floor building by a joining bolt. Thus, even when a structure protruding from the building is provided, by making the transmission of the load from the structure via a column having sufficient strength against the vertical force, an attachment structure capable of withstanding a large load of the cantilever balcony can be achieved without reinforcing the building itself such as a beam.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, according to the configuration described in Patent Document 1, it is premised that the transmission of the vertical load of the structure protruding from the building is via the column. However, when it is difficult to provide a column for supporting the beam due to the structure, it is not possible to sufficiently secure the strength to withstand the load from above.

[0006] Therefore, an object of the present invention is to provide a beam support structure capable of ensuring the bearing strength sufficient to receive the load from the beam even when it is difficult to provide columns for supporting the beam structurally.

Means for Solving the Problems

[0007] In view of the above problems, the present invention provides a beam support structure for supporting a beam that supports a structure projecting outward from a building, the beam support structure including: an attachment portion attached to a stud provided on the indoor side of an outer wall constituting the building; and a projecting portion joined to the attachment portion and projecting to the outdoor side from an opening formed in the outer wall, the projecting portion being configured to support at least one end of the beam extending in the horizontal direction from below.

[0008] Here, it is desirable that the attachment portion is formed in a plate shape extending in the vertical direction and is fixed in a state of surface contact with the stud.

[0009] Also, it is desirable that a bolt is attached to the lower side at the end of the beam, and the beam is supported in a state of being fixed to the projecting portion via the bolt.

Advantages of the Invention

[0010] The beam support structure of the present invention includes an attachment portion attached to a stud provided on the indoor side of an outer wall constituting the building, and a projecting portion joined to the attachment portion and projecting to the outdoor side from an opening formed in the outer wall, the projecting portion being configured to support at least one end of the beam extending in the horizontal direction from below.

[0011] For this reason, even when there is no column for supporting the beam that supports the structure projecting outward from the building, the beam is supported by the attachment portion instead of the column. Therefore, it is possible to ensure the bearing strength sufficient to receive the load from above transmitted through the beam.

[0012] In addition, the mounting portion is formed in a plate shape extending in the vertical direction and is fixed in a state of surface contact with the intermediate pillar. Therefore, the intermediate pillar and the mounting portion are integrated, and the strength of the support structure can be improved.

[0013] Furthermore, bolts are attached to the lower side at the end of the beam, and the beam is supported in a state of being fixed to the protruding portion via the bolts. Therefore, the mounting strength of the beam to the mounting portion can be improved.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Embodiments for Carrying Out the Invention

[0015] Hereinafter, the support structure according to the embodiment of the present invention will be described with reference to the drawings.

[0016] FIG. 1 is a perspective view of a building 1 to which a support structure according to an embodiment is applied, as viewed from the eaves panel 3 side, and FIG. 2 is an enlarged plan view of the roof portion of the building 1. As shown in FIG. 1, a roof 2 is provided on a building 1 such as a house, and an eaves panel 3 is provided continuously with the roof 2. The eaves panel 3 is supported by a beam 31. One end of the beam 31 is supported by a column 4, and the other end is supported by a protruding portion 120.

[0017] As shown in FIG. 2, the building 1 is configured to have an eaves panel 3 that projects from the building body. The eaves panel 3 that slopes downward is provided so as to project from the building 1 continuously with the roof 2.

[0018] Here, there are various types of buildings 1, such as wooden ones (wooden houses), steel-frame ones (steel-frame houses), and concrete ones (concrete houses). In this case, a wooden house is assumed. And in wooden houses, there are those by traditional methods (wooden framed houses), those by two-by-four methods (two-by-four houses), those by wooden unit methods (wooden unit houses), etc., and any of these may be used.

[0019] FIG. 3 is a longitudinal sectional view of the eaves panel 3 in FIG. 1 as viewed from the side, and is a sectional view taken along line A-A in FIG. 2. FIG. 4 is a longitudinal sectional view of the eaves panel 3 in FIG. 1 as viewed from the front, and is a sectional view taken along line B-B in FIG. 2. In the following, the eaves tip side is shown, and illustrations and detailed descriptions of the components on the eaves base side are omitted.

[0020] The eaves panel 3 is composed of a beam (eaves tip beam) 31, a rafter 32 extending from the eaves base side to the eaves tip side, a roof member 33 provided above the rafter 32, a ceiling member 34 provided below the rafter 32, and an eaves gutter 35 provided at the tip side of the rafter 32.

[0021] The beam 31 is a member formed in a long shape extending in the horizontal direction (the depth direction of the paper surface in FIG. 3). One end side of the beam 31 is supported from below by a support tool (support structure) 100. Specifically, as shown in FIG. 4, the lower surface 31a of the beam 31 is supported by the protruding portion 120.

[0022] As shown in FIG. 4, the stud 60 is provided inside the outer wall 50 of the building 1 and extends in the vertical direction. The support tool 100 is fixed to the stud 60 via a fixture 130. The support tool 100 is configured to have a mounting portion 110 and a protruding portion 120 provided at one end side of the mounting portion 110, and the mounting portion 110 is integrated with the stud 60 by the fixture 130.

[0023] The mounting portion 110 is disposed between the outer wall 50 and the stud 60. An opening 50a is formed in the outer wall 50, and the protruding portion 120 protrudes to the outdoor side through the opening 50a. The protruding portion 120 supports the beam 31 from below on the outdoor side of the building 1.

[0024] FIG. 5 is a perspective view showing the entire support tool 100. The support tool 100 is configured to have a mounting portion 110 and a protruding portion 120 provided above the mounting portion 110.

[0025] The mounting portion 110 is a member formed in a plate shape extending in the vertical direction. Three through holes 111 penetrating in the thickness direction along the vertical direction are formed in the central portion in the width direction of the mounting portion 110. The through holes 111 function as mounting holes for inserting the fixture 130 and attaching the mounting portion 110 to the stud 60. In a state where the mounting portion 110 is disposed between the outer wall 50 and the stud 60, the mounting portion 110 is fixed in a state of surface contact with the stud 60.

[0026] The protruding portion 120 is configured to have a base portion 121 protruding to one side of the mounting portion 110 and a support portion 122 disposed above the base portion 121. The base portion 121 is fixed to the lower side of the support portion 122 in a state of protruding horizontally from one side surface of the mounting portion 110. The support portion 122 protrudes horizontally at the upper end of the mounting portion 110. The support portion 122 is formed in a flat plate shape, and a bolt hole 122a penetrating in the thickness direction is formed therein.

[0027] FIG. 6 is a perspective view showing the entire stud 60. The stud 60 is formed in a columnar shape extending in the vertical direction, and three insertion holes 61 are formed at equal intervals along the vertical direction. The insertion hole 61 is a hole for inserting a fixture 130 that penetrates the mounting portion 110.

[0028] FIG. 7 is a diagram for explaining how the support 100 is attached to the stud 60. The support 100 is fixed to the stud 60 by a fixture 130. The fixture 130 is configured to have a rod-shaped shaft portion 131 and a head portion 132 which is a plate-shaped member provided at one end of the shaft portion 131.

[0029] With the three through holes 111 formed in the mounting portion 110 and the three insertion holes 61 formed in the stud 60 being aligned, the support 100 is fixed to the stud 60 by these inserted fixtures 130. The mounting portion 110 is disposed in a gap formed between the outer wall 50 and the stud 60.

[0030] FIG. 8 is a diagram for explaining how the beam 31 is attached to the support 100. Here, an example will be described based on a case where the support 100 is provided on one end side of the beam 31 and the support column 70 is provided on the other end side.

[0031] Bolts 31b protruding downward are provided on one end and the other end side of the beam 31. On one end side of the beam 31, the bolt 31b is inserted into the bolt hole 122a, and the beam 31 is fixed to the support 100 in a state of being in surface contact with the support portion 122. When the beam 31 is fixed to the support 100, the load from the beam 31 is transmitted downward through the support 100.

[0032] On the other end side of the beam 31, the bolt 31b is inserted into a bolt hole 70a formed in the upper surface of the support column 70, and the beam 31 is fixed to the support column 70 in a state of surface contact with the support portion 122. When the beam 31 is fixed to the support column 70, the load from the beam 31 is transmitted downward via the support column 70.

[0033] Here, an example in which the support column 70 is arranged on the other end side of the beam 31 is shown. However, a support tool 100 may be arranged on the other end side of the beam 31 instead of the support column 70. That is, when the support columns 70 are not provided at both ends of the beam 31, both ends of the beam 31 are supported by the support tool 100, so that the load from the beam 31 can be transmitted downward regardless of the presence or absence of the support column 70.

[0034] As described above, the support structure (support tool) 100 of the present invention includes a mounting portion 110 attached to a stud (intermediate column) 60 provided on the indoor side of an outer wall 50 constituting a building 1, and a protruding portion 120 joined to the mounting portion 110 and protruding to the outdoor side from an opening 50a formed in the outer wall 50. The protruding portion 120 supports at least one end of a beam 31 extending in the horizontal direction from below.

[0035] Therefore, even when there is no column for supporting the beam 31 that supports a structure such as the eaves panel 3 protruding outward from the building 1, the beam 31 is supported by the mounting portion 110 instead of the column. Therefore, it is possible to secure the bearing strength only for receiving the load from above transmitted through the beam 31.

[0036] Further, the mounting portion 110 is formed in a plate shape extending in the vertical direction and is fixed in a state of surface contact with the stud (intermediate column) 60. Therefore, the stud 60 and the mounting portion 110 are integrated, and the strength of the support structure can be improved.

[0037] Furthermore, a bolt 31b is attached to the lower side at the end of the beam 31, and the beam 31 is supported in a fixed state with respect to the protruding portion 120 via the bolt 31b. Therefore, the attachment strength of the beam 31 to the attachment portion 110 can be improved.

[0038] As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to the embodiments, and design changes that do not deviate from the gist of the present invention are included in the present invention.

Explanation of Reference Numerals

[0039] 1: Building 31: Beam 31b: Bolt 50: Outer wall 50a: Opening 60: Stud 100: Support 110: Attachment portion 120: Protruding portion

Claims

1. A beam support structure for supporting a beam that supports a structure projecting outward from a building, an attachment portion attached to a column provided on the indoor side of an outer wall constituting the building, and a protruding portion joined to the attachment portion and protruding to the outdoor side from an opening formed in the outer wall, wherein the protruding portion supports at least one end of the beam extending in the horizontal direction from the lower side. The beam support structure is characterized by this.

2. The beam support structure according to claim 1, wherein the attachment portion is formed in a plate shape extending in the vertical direction and is fixed in a state of surface contact with the column.

3. A bolt is attached to the lower side at the end of the beam, and the beam is supported in a state of being fixed to the protruding portion via the bolt. The beam support structure according to claim 1 or 2 is characterized by this.

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