JP2005139691A - Column removal beam reinforcing method in partition part section and beam reinforcing structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a column removal beam reinforcing method in a partition part capable of smoothly removing with ease a middle column erected in the middle section of the partition part. <P>SOLUTION: In the partition part 11 between adjacent rooms in a wooden building, a middle column 13 installed in the middle part of the partition part 11 and supporting a beam member 12 is removed, and the beam member 12 is reinforced. The method 10 for reinforcing the column removal beam is constituted of a process in which an assistant beam 15 is provided under the beam member 12 and attached in between the middle column 13 and the both side columns 14, a reinforcing band plate shaped steel framed beam 16 having a shorter length than the span L between both side columns 14 is fitted so as to straddle on both sides of the middle column 13 in the state covering the connection part 18 of the beam member 12 and the assistant beam 15 by the band plate part 17, and a process cutting and removing the lower part than the assistant beam 15 of the middle column 13. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention removes an intermediate column that is provided at an intermediate portion of a partition portion between adjacent rooms in a wooden building and supports a beam member, and removes a column that reinforces the beam member. The present invention relates to a method and a beam reinforcing structure for reinforcing a beam member when the intermediate pillar is removed.

  In recent years, when renovating a wooden building, there is an increasing demand for wide use as one room by removing, for example, a partition between a living room and a Japanese room as an adjacent room. Various methods for removing the partition part have been proposed. However, when a pillar, which is a framework member of a building, is provided at the intermediate part, such an intermediate pillar generally has a beam member at the partition part. Since it is supported from below, its removal work becomes difficult.

  That is, in order to remove the intermediate column, the upper beam member becomes unstable by simply pulling out the intermediate column, and in particular, the beam member is connected and integrated in the axial direction via a joint at the intermediate portion. When it is a thing, a beam member becomes easy to fall. Therefore, prior to removing the intermediate pillar, it is necessary to provide a temporary support structure or the like to support the beam member, which takes a lot of work.

Moreover, since the beam member becomes unstable by removing the intermediate column, as a method of reinforcing this, for example, a reinforcing steel beam is placed between the columns on both sides along the lower surface of the beam member to be reinforced. A method of erection is conceivable (see, for example, Patent Document 1).
JP 56-125549 A

  However, according to the method of reinforcing a wooden beam member with a steel beam of Patent Document 1, the steel beam is laid in advance between columns on both sides prior to assembling the beam member to be reinforced. Therefore, in the partition part of the wooden building that has already been constructed, various problems will arise when attempting to attach along the lower surface of the existing beam member.

  In other words, in order to construct a steel frame between pillars on both sides in the partition part, it is necessary to swing a steel frame having a length corresponding to the span between the pillars inside the existing wooden building. It becomes difficult to carry and install the steel frame without damage or damage. Also, until the intermediate column is removed, the intermediate column becomes an obstacle, and after the intermediate column is removed, the temporary support structure becomes an obstacle, so that the steel frame can be smoothly moved along the lower surface of the beam member. It becomes difficult to attach to.

  The present invention has been made by paying attention to such a conventional problem, and can easily and smoothly remove the intermediate pillar provided at the intermediate portion of the partition portion while effectively reinforcing the beam member. An object of the present invention is to provide a beam removal method for reinforcing a column in a partition portion and a beam reinforcement structure capable of effectively reinforcing a beam member after removal of an intermediate column without requiring a difficult operation.

  The present invention removes an intermediate column that supports a beam member and is provided at an intermediate portion of the partition portion in a partition portion between adjacent rooms in a wooden building, and reinforces the beam member. A method of reinforcement, comprising a step of attaching a beam between the intermediate column and the columns on both sides of the intermediate column, and a length shorter than a span between columns of the columns on both sides. A step of attaching a reinforcing strip-shaped steel beam having a crossing over both sides of the intermediate column in a state where the band plate portion covers the joint portion of the beam member and the auxiliary beam, The object is achieved by providing a column removal beam reinforcing method in a partition portion characterized by comprising a step of cutting and removing a portion below the accessory beam.

  Further, the present invention reinforces the beam member in a partition portion between adjacent rooms in a wooden building when the intermediate pillar provided at an intermediate portion of the partition portion and supporting the beam member is removed. A beam reinforcing structure for a beam, wherein the beam member is provided by a belt plate portion, which is provided below the beam member, and is installed between a remaining upper end of the intermediate column and both columns. A reinforcing steel strip-like steel frame having a length shorter than the span between columns of the columns on both sides, attached so as to straddle both sides of the upper end remaining portion of the intermediate column in a state of covering the joint portion between the beam and the accessory beam The above object is achieved by providing a beam reinforcing structure characterized by comprising a beam.

  And according to the beam reinforcing structure of the present invention, the beam receiver is arranged at the interval between the end of the reinforcing strip-like steel beam and the columns on both sides, and supports the auxiliary beam from below. Is preferably attached.

  According to the beam reinforcing structure of the present invention, the reinforcing band plate-like steel beam is driven by screw bolts toward the beam member and the auxiliary beam through driving holes formed in the band plate portion. It is preferable that the beam member and the accessory beam are attached so as to cover a joint portion.

  Further, according to the beam reinforcing structure of the present invention, the reinforcing band plate-like steel beam has a beam receiving object supporting a small beam extending from the reinforcing band plate-like steel beam, the driving hole. It is preferable that the screw bolt is attached along with the driving of the screw bolt.

  According to the column removal beam reinforcing method in the partition portion of the present invention, the intermediate column provided in the intermediate portion of the partition portion can be easily and smoothly removed while effectively reinforcing the beam member. Moreover, according to the beam reinforcement structure of this invention, the beam member after removal of an intermediate | middle pillar can be effectively reinforced without requiring a difficult operation | work.

  The column removal beam reinforcement method in the partition part which concerns on preferable one Embodiment of this invention, for example, when reforming a wooden building, the partition part between a living room and a Japanese-style room as an adjacent room in a wooden building is used. It was adopted for the purpose of making it widely usable as one room by removing it, and as shown in FIGS. 1 (a) to 1 (d), it is provided at an intermediate portion of the partition portion 11. When the intermediate column 13 supporting the beam member 12 is removed, it is used to effectively reinforce the beam member 12 of the partition portion 11 after the intermediate column 13 is removed.

  And the pillar removal beam reinforcement method of this embodiment is attached below the beam member 12, and the process of attaching the beam 15 between the intermediate column 13 and the column 14 of the both sides (FIG.1 (b)) The reinforcing strip plate-like steel beam 16 having a length shorter than the span between the columns 14 on both sides is covered with the strip plate portion 17 to cover the joint portion 18 between the beam member 12 and the beam 15. A step (see FIG. 1 (c)) for attaching the intermediate column 13 so as to straddle both sides of the intermediate column 13; It is constituted by.

  According to this embodiment, the partition part 11 is a part provided, for example so that a living room and a Japanese-style room may be partitioned, Comprising: As shown to Fig.1 (a), the pillar 14 of the both sides which are frame members, and A partition wall, a sliding door, an open door, and the like are provided in a gate-shaped portion surrounded by the beam member 12 laid between these upper end portions, thereby partitioning adjacent rooms so that they can enter and exit. Further, according to the present embodiment, the beam member 12 is configured by connecting and dividing the split beams 12 a and 12 b in the axial direction via the joint 19, and the joint 19 is provided at an intermediate portion of the partition portion 11. An intermediate column 13 is provided in order to stably support the beam member 12 from below at the center portion of the span at a portion close to the center. The column removal beam reinforcement method of the present embodiment is a method for easily and smoothly removing the intermediate column 13 while effectively reinforcing the beam member 12.

  According to the present embodiment, the pillars 14 on both sides have a rectangular cross-sectional shape having a size of about 100 to 120 mm and a width of about 100 to 120 mm, for example, and the intermediate column 13 is a length of 100 to 120 mm, for example. It has a rectangular cross-sectional shape with a size of about 100 to 120 mm in width. The beam member 12 has a rectangular cross-sectional shape having a width of about 105 to 120 mm and a height of about 105 to 300 mm, for example. Further, for example, a side beam 20 having a rectangular cross section having a width of about 105 to 120 mm and a height of about 105 to 360 mm is supported by the column 14 and extends in a direction perpendicular to the beam member 12. It has been. According to the present embodiment, the side beam 20 in the portion located immediately above the column 14 is a portion to which the end of the beam member 12 or the beam 15 is attached, and can be handled as a portion corresponding to the column 14. It is an important part.

  Moreover, according to this embodiment, in FIG.1 (a)-(d), the partition part 11 is shown in the state of only the framework structure after removing a partition wall, a sliding door, an open door, etc. suitably, both sides are shown. The column 14 and the beam member 12 have a gate shape with an opening shape of, for example, a width of about 2600 to 3600 mm and a height of about 2700 to 3000 mm. Further, the beam member 12 and the side beams 20 are portions that are covered with the ceiling plate and disposed in the ceiling back portion after the renovation work is completed.

  And according to this embodiment, in the process shown in FIG.1 (b), the beam 15 attached between the intermediate | middle pillar 13 and the pillar 14 of the both sides of this is about 105-120 mm in width, for example, and height It has a rectangular cross-sectional shape with a size of about 150 to 210 mm, and corresponds to the length of the space between each side surface of the intermediate column 13 and the side surfaces of the columns 14 on both sides, for example, about 790 to 2625 mm. Has a length of Each accessory beam 15 is disposed along the lower surface of the beam member 12 so as to be fitted between each side surface of the intermediate column 13 and the side surfaces of the columns 14 on both sides, as shown in FIG. Further, for example, by driving a screw bolt 21 such as a lag screw from the lower surface side of the beam 15 toward the upper beam member 12, the beam is fixed below the beam member 12.

  Further, in the step shown in FIG. 1C, the reinforcing strip-shaped steel beam 16 attached in a state of covering the joint portion 18 between the beam member 12 and the beam 15 is, for example, 200 × 50 × 4.0. A grooved steel (channel member) having a cross-sectional shape, as shown in FIG. 2, the intermediate plate portion forms a flat belt-like strip portion 17 having a width of 200 mm. The reinforcing strip-shaped steel beam 16 has a length shorter than the inter-column span L between the columns 14 on both sides, for example, about 2130 to 4860 mm, and is disposed on the upper and lower side edges of the intermediate plate portion 17. While the rib portion 22 having a width of 50 mm is projected outward, the flat back surface of the band plate portion 17 is brought into close contact with both side surfaces of the beam member 12 and the beam 15 which are integrated and attached, respectively. A pair is attached to both sides. Further, the reinforcing band plate-like steel beam 16 extends over both sides of the intermediate column 13 so as to cover the joint portion 18 between the beam member 12 and the beam 15 and the reinforcing band plate. The steel beam 16 is fixed in a state where, for example, a space S of 150 to 300 mm is left between both ends of the steel beam 16 and the pillars 14 on both sides.

  Here, in the strip portion 17 formed by the intermediate plate portion of the reinforcing strip-like steel beam 16, a plurality of driving holes 23 are opened in two upper and lower stages (preferably upper and lower staggered) at a pitch of about 200 to 300 mm, for example. The reinforcing band plate-like steel beam 16 is formed with a joint portion 18 by driving a screw bolt 24 such as a lag screw toward the beam member 12 and the beam 15 through the driving holes 23. In the covered state, it is firmly attached to the side surfaces of the beam member 12 and the beam 15.

  Furthermore, according to the present embodiment, after attaching the reinforcing strip-shaped steel beam 16, in the step shown in FIG. 1 (d), the portion below the spur beam 15 of the intermediate column 13 is, for example, sawed or the like. By using and cutting and removing, the beam reinforcing structure 10 of the present embodiment in which the beam member 12 after the removal of the intermediate pillar 13 is effectively reinforced is easily formed.

  That is, the beam reinforcing structure 10 of the present embodiment has removed the intermediate column 13 that is provided in the intermediate portion of the partition portion 11 and supports the beam member 12 in the partition portion 11 between adjacent rooms as described above. In this case, the reinforcing structure for reinforcing the beam member 12 is provided below the beam member 12 and installed between the upper end remaining portion 13a of the intermediate column 13 and the columns 14 on both sides. Between the columns of the columns 14 on both sides, which are attached to straddle both sides of the upper end remaining portion 13a of the intermediate column 13 with the beam 15 and the strip plate portion 17 covering the joint portion 18 of the beam member 12 and the beam 15 The reinforcing strip plate-like steel beam 16 having a length shorter than the span L is formed.

  Further, according to the beam reinforcing structure 10 of the present embodiment, between the ends of the reinforcing strip-shaped steel beam 16 attached to the side surfaces of the beam member 12 and the beam 15 and the columns 14 on both sides, for example, Since the space S of about 100 to 300 mm remains, the beam receiver 26 that is arranged in the space portion 25 and supports the spur beam 15 from below as shown in FIGS. 3 (a) and 3 (b), It is fixedly attached to the side beam 20 directly above the column 14 via a screw bolt or the like. That is, since the length of the reinforcing strip-shaped steel beam 16 is shorter than the inter-column span L between the columns 14 on both sides, the interval portion 25 between the reinforcing strip-shaped steel beam 16 and the column 14 is provided. Using this, it becomes possible to install the beam receiver 26 by a post-insertion method, and thereby, the beam member 12 and the beam 15 can be supported more firmly. Further, by leaving a gap portion 25 between the end of the reinforcing strip-like steel beam 16 and the column 14, a metal fitting such as a wing plate bolt is attached to the joint between the column 14 and the side beam 20 or the like. Even if it is attached, it is possible to attach the reinforcing strip-like steel beam 16 to the side surfaces of the beam member 12 and the beam 15 without being affected by these hardware.

  Further, according to the present embodiment, the reinforcing band plate-like steel beam 16 is driven by the screw bolt 24 toward the beam member 12 and the beam 15 through the driving hole 23 formed in the band plate portion 17. For example, as compared with the case where a fastening bolt is inserted into and fixed to a bolt hole that has been previously formed in the beam member 12 or the beam 15, a reinforcing band is smoothly provided without the need for bolt hole alignment or the like. It becomes possible to attach the plate-shaped steel beam 16, and effectively avoid the loose state, and the reinforcing strip-shaped steel beam 16 is more firmly attached to the beam member 12 and the beam 15. It becomes possible to fix to the side.

  Furthermore, according to the beam reinforcing structure 10 of the present embodiment, the reinforcing strip plate-like steel beam 16 is separated from the reinforcing strip plate-like steel beam 16 as shown in FIGS. 4 (a) and 4 (b). A beam receiver 28 for supporting the extended beam 27 is attached by a post-insertion method as the screw bolt 24 is driven through the driving hole 23. That is, a mounting hole 30 is formed in the mounting plate portion 29 of the small beam receiver 28 at a position that matches the driving hole 23 of the reinforcing strip-shaped steel beam 16, and the mounting hole 30 is inserted into the driving hole 23. By driving the screw bolt 24 in conformity with the above, it is possible to easily attach the small beam receiver 28 to the side surface of the beam member 12. In addition, the end of the small beam 27 is placed in the insertion recess 31 of the attached small beam receiver 28 and a biz or the like is driven into the fixing hole 32 so that the small beam 27 is received by the small beam receiver. It can be easily attached in a state where it is supported by 28.

  And according to the pillar removal beam reinforcement method of this embodiment, the intermediate pillar 13 provided in the intermediate part of the partition part 11 can be removed easily and smoothly, reinforcing the beam member 12 effectively. That is, according to the present embodiment, the step of attaching the beam 15 attached below the beam member 12, the step of attaching the reinforcing strip-like steel beam 16 having a length shorter than the span L between the columns, The intermediate column 13 can be easily removed without requiring a difficult operation by a simple construction method based on the step of cutting and removing the intermediate column 13 below the accessory beam 15, and is shorter than the span L between the columns. By using the reinforcing steel strip 16 for reinforcing the length, the handling of the steel beam 16 inside the existing wooden building can be easily handled, and the intermediate pillar 13 can be removed. In the beam reinforcing structure 10 obtained in this manner, the beam 15 and the reinforcing steel strip-like steel beam 16 are integrated to reinforce the beam member 12, so that the columns on both sides are removed even after the intermediate column 13 is removed. 14 between the beam member 12 and It is possible to keep is bridged at a constant state.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the column removal beam reinforcing method of the present invention is not limited to the case where there is one intermediate column between the columns on both sides of the partition portion, but also when two or more intermediate columns are arranged. Can be employed to remove the intermediate post. Moreover, it is not always necessary to use a grooved steel (channel member) as the reinforcing strip-shaped steel beam having the strip portion, and for example, a flat steel having a horizontally long strip shape can be used. Furthermore, in the beam reinforcing structure of the present invention, it is not always necessary to provide a beam receiver at the space between the end of the reinforcing strip-shaped steel beam and the column. It is not always necessary to attach a receipt. Furthermore, the reinforcing strip-shaped steel beam does not necessarily have to be attached to the beam member or the accessory beam by driving a screw bolt.

(A)-(d) is a schematic front view explaining the process of the column removal beam reinforcement method which concerns on one Embodiment of this invention. It is sectional drawing in alignment with AA of FIG.1 (d) explaining the attachment condition of an accessory beam and a strip-shaped steel beam for reinforcement. (A) is a fragmentary perspective view explaining the attachment condition of a beam receiver, (b) is a perspective view of a beam receiver. (A) is a fragmentary perspective view explaining the attachment condition of a small beam receiving object, (b) is the same sectional drawing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10,50 Underfloor storage part structure 11 Partition part 12 Beam member 12a, 12b Split beam 13 Middle pillar 13a Upper end remaining part 14 of intermediate pillar Both pillars 15 Auxiliary beam 16 Steel strip for reinforcement 17 Strip part 18 Beam member Joint part 19 of beam member and joint 20 of beam member Side beam 21, 24 Screw bolt 22 Rib part 23 of grooved steel 25 Driving hole 25 Spacing part 26 Beam receiving object 27 Small beam 28 Small beam receiving object 29 Pipe member 30 Mounting hole 31 Insertion recessed part 32 Fixing hole L Column span S Space between end of column steel beam for reinforcement and column

Claims (5)

In a partition part between adjacent rooms in a wooden building, an intermediate column provided at an intermediate part of the partition part and supporting a beam member is removed, and a column removal beam reinforcement method for reinforcing the beam member. And
Attaching the beam under the beam member and attaching the beam between the intermediate column and the columns on both sides thereof,
A reinforcing strip-like steel beam having a length shorter than the span between the columns on both sides of the intermediate column in a state where the joint portion between the beam member and the auxiliary beam is covered by the strip portion. A process of mounting so as to straddle both sides;
The method further comprises a step of cutting and removing a portion of the intermediate column below the accessory beam. In a partition part between adjacent rooms in a wooden building, a beam reinforcing structure is provided to reinforce the beam member when an intermediate column provided at an intermediate part of the partition part and supporting the beam member is removed. There,
An auxiliary beam installed below the beam member, and installed between the upper end remaining portion of the intermediate column and the columns on both sides;
A length shorter than the span between the columns of the columns on both sides is attached so as to straddle both sides of the upper end remaining portion of the intermediate column in a state where the joining portion of the beam member and the beam is covered by a strip portion. A beam reinforcing structure comprising a reinforcing steel strip-like steel beam. The beam reinforcement according to claim 2, wherein a beam receiver is attached to a portion between the end portion of the reinforcing steel plate-like steel beam and the columns on both sides and supports the auxiliary beam from below. Construction. The reinforcing band plate-shaped steel beam is formed by driving a screw bolt toward the beam member and the auxiliary beam through a driving hole formed in the band plate portion, thereby joining the beam member and the auxiliary beam. The beam reinforcing structure according to claim 2 or 3, wherein the beam reinforcing structure is attached in a state of covering. A steel beam support for supporting a small beam extending from the reinforcing steel strip-like steel beam is attached to the reinforcing steel strip-like steel beam as the screw bolt is driven through the driving hole. The beam reinforcing structure according to claim 4.

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