JP6616586B2 - Building wall structure - Google Patents

Description

  The present invention relates to a building wall structure.

  In apartment buildings, there are boundary walls between the dwelling units, and the boundary walls are required to have a predetermined fire resistance. In this case, as a housing for the boundary wall portion, a configuration is known in which the beam material extending along the boundary wall portion is a fire-resistant beam covered with a refractory material and the field wall portion is constructed below the refractory beam. ing.

  For example, in the technique described in Patent Document 1, a runner bracket is provided on a lower surface of a steel beam so as to protrude, and a horizontal support flange and a runner are attached to a lower end portion of the bracket. In addition, the lower end of the refractory material covering the outer periphery of the steel beam is placed at the upper end of the support flange, the lower surface plate is attached to the lower surface side of the support flange, and the side surface plate is attached to the side surface side of the refractory material. Yes.

JP-A-6-146441

  However, since the above prior art is a structure in which the runner bracket is attached to the steel beam, in attaching the runner bracket to the steel beam, the work of covering the steel beam with the refractory material is limited, There is concern about the loss of sex. In addition, when the boundary wall portion is supported by the side surface plate provided on the side surface side of the refractory material, it is considered that the burden on the side surface plate becomes excessively large and there is a concern about strength.

  This invention is made | formed in view of the said situation, and it aims at providing the boundary structure of the building which can construct | assemble a boundary wall part appropriately, ensuring the fireproof performance in a boundary wall area | region. Is.

  Hereinafter, means and the like effective for solving the above-described problems will be described while showing functions and effects as necessary. In the following, for ease of understanding, the reference numerals of the corresponding components in the embodiments of the invention are appropriately shown in parentheses, but are not limited to the specific configurations shown in parentheses.

The first invention is
A building wall structure comprising a fire-resistant beam (12) whose periphery is covered with a fire-resistant material (14), and a field wall portion (30) provided along the fire-resistant beam below the fire-resistant beam,
A wall support member (23) is provided below the fire-resistant beam so as to be bridged between ceiling structures (16) existing on both sides of the boundary wall portion. The base frame (31, 34) of the wall portion is supported.

  When there is a fire-resistant beam whose periphery is covered with a fire-resistant material, it is difficult to attach the base frame of the boundary wall to the fire-resistant beam. In this regard, in the above configuration, a wall support member is provided below the fire-resistant beam, spanning between the ceiling structures on both sides across the boundary wall portion, and the base frame of the boundary wall portion is supported by the wall support member. Has been. In this case, by newly providing a wall support material below the refractory beam, it becomes possible to support the field wall portion regardless of the refractory beam including the work of covering the refractory beam with the refractory material. In addition, the wall support material is installed between the ceiling structures on both sides across the boundary wall, and is supported on both sides in the horizontal direction, giving the desired strength to support the boundary wall. it can. As a result, it is possible to properly construct the field wall portion while ensuring fire resistance performance in the field wall region.

  The second invention is characterized in that the wall support material is provided in contact with the refractory material and sandwiched between the refractory material and the refractory beam.

  The refractory material is provided in a state of being sandwiched between the refractory beam and the wall support material. In this case, it is possible to secure continuity between the refractory material of the refractory beam and the boundary wall portion and to impart fire resistance performance.

  3rd invention is a field edge receiver (16) by which the said ceiling structure is suspended and supported by another beam material (11) of the same height position as the said fireproof beam, It is connected via a connecting member (21, 22).

  When a field edge receiver exists as a ceiling structure, the wall support material can be conveniently held at a desired position by using the field edge receiver.

  According to a fourth aspect of the present invention, the connecting member includes a threading member (22) provided so as to extend along a longitudinal direction of the refractory beam, and a plurality of the spacing members are arranged at predetermined intervals in the longitudinal direction with respect to the threading member. The wall support material is fixed.

  In the above-described configuration, the plurality of wall support members are fixed by using a threading member provided along the longitudinal direction of the refractory beam. In this case, a preferable configuration can be realized in fixing and supporting the field wall portion along the fireproof beam.

  According to a fifth aspect of the invention, the wall support member is a plate-like member, the plate surface is arranged vertically, and the base frame is fixed in a state of being in contact with the lower surface of the wall support member. It is characterized by being.

  By configuring the wall support member with a plate-like member, a fixing surface for fixing the base frame of the field wall portion can be suitably provided, and the construction of the field wall portion becomes easy. In this case, it is possible to realize a configuration that is superior in terms of workability when constructing the boundary wall portion.

  According to a sixth aspect of the present invention, the boundary wall portion includes a wall surface material (37) fixed to the base frame, and a seal material (38) is provided in a gap portion between the wall support material and the wall surface material. Is filled.

  Since the wall support material exists above the boundary wall portion, the sealing material can be easily filled.

  In a seventh aspect of the present invention, the boundary wall portion includes a first frame and a second frame arranged side by side in the wall thickness direction as the base frame, and each of the frames includes the first frame along the wall surface direction. A heat insulating material (39) is arranged so as to alternate between the first frame side and the second frame side.

  In the said structure, the usage-amount of the heat insulating material in a field wall part can be reduced, making performances, such as heat insulation in a field wall part, and sound insulation, equal on both surfaces side of a field wall part. Further, since the heat insulating material is dispersedly arranged in each frame, the ventilation portion can be easily formed in the boundary wall portion. Therefore, desired boundary wall performance can be realized while simplifying the configuration.

The longitudinal cross-sectional view which shows the storage of the boundary wall part in a building. AA sectional view taken on the line AA of FIG. The cross-sectional view which shows the internal structure of a boundary wall.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings. In the present embodiment, the configuration of the boundary wall part existing between the dwelling units will be described in detail in a building embodied as a collective housing composed of a plurality of dwelling units. The building is a multi-story building constructed by a steel frame construction method, and the building frame is made of steel.

  FIG. 1 is a vertical cross-sectional view showing how the boundary wall 30 is stored in the building 10. As shown in FIG. 1, the building 10 has floor beams 11 and 12 for upper floors. The floor beams 11 and 12 are coupled in directions orthogonal to each other, and a floor surface material 13 made of ALC is supported by the floor beams 11 and 12. The floor beams 11 and 12 are both made of H-section steel. A field wall portion 30 is provided along the floor beam 12 of the floor beams 11 and 12. In FIG. 1, the field wall 30 extends in the direction orthogonal to the paper surface.

  Of the floor beams 11 and 12, the floor beam 12 extending in the same direction as the boundary wall portion 30 is covered with a sheet-like refractory material 14 so as to surround the periphery thereof. The floor beam 12 corresponds to a refractory beam. The refractory material 14 is made of, for example, heat-resistant rock wool, and is provided so that one end side and the other end side of the cross section are respectively fixed to the lower surface of the floor surface material 13 and surround the floor beam 12 at an intermediate portion therebetween. It has been.

  Further, as a storage of the lower-floor ceiling, a plurality of ceiling suspenders 15 are attached to the floor beam 11, and the field edge receiver 16 is supported by the ceiling suspenders 15. The field edge receiver 16 is provided so as to be parallel to the floor beam 11 and extend in a direction orthogonal to the floor beam 12. A field edge 18 is supported on the field edge receiver 16 by a clip 17 as a support. The field edge 18 is provided so as to be orthogonal to the field edge receiver 16. A ceiling surface material 19 made of gypsum board is fixed to the lower surface of the field edge 18.

  Here, in the boundary wall part 30, when the floor beam 12 is made into a fireproof beam by covering with the fireproof material 14 as described above, the presence of the fireproof material 14 supports the field wall part 30 by the floor beam 12. That is, it becomes difficult to fix the wall frame constituting the boundary wall portion 30 to the floor beam 12. Therefore, in the present embodiment, a support member for supporting the wall is fixed using ceiling structures (ceiling base members) that are present on both sides of the wall 30 and the wall 30 is supported by the support member. To do.

  Next, the boundary wall support structure will be described in detail. 2 is a cross-sectional view taken along line AA in FIG. In FIG. 2, for the sake of convenience, illustration of the ceiling hanger 15, the field edge 18, and the like is omitted, and some of them show the positional relationship of each member rather than the actual accommodation.

  As shown in FIGS. 1 and 2, a bracket 21 is fixed to the side surface of the field edge 16 of the field edge receiver 16, and a threading member 22 is fixed to the bracket 21. The bracket 21 and the threading member 22 correspond to a connecting member. The bracket 21 is made of, for example, an L-angle material, and the threading material 22 is made of, for example, a square steel pipe. One surface of the bracket 21 is fixed to the field edge receiver 16 with a screw or the like, and the other surface orthogonal to the one surface is fixed to the threading member 22 with a screw or the like. A plurality of field edge receivers 16 are provided at predetermined intervals, and a threading member 22 is provided so as to connect the field edge receivers 16 to each other.

  The threading member 22 is provided on both the left and right sides of the boundary wall portion 20, and a support plate 23 as a wall supporting material that supports the boundary wall portion 30 is fixed so as to be bridged to the threading member 22 on both the left and right sides. Has been. In FIG. 2, dots are attached to the support plate 23 for convenience. The support plate 23 is made of, for example, a flat iron plate, is disposed with its plate surface facing up and down, and is fixed to the threading member 22 with screws or the like. As shown in FIG. 2, the support plate 23 is fixed at a position where the support member 23 is connected to the edge receiver 16 in the threading member 22. However, the fixed pitch of the support plate 23 can be changed, and may be fixed at a position other than the connecting portion with the field receiver 16.

  The threading member 22 may be provided on the upper side with the support plate 23 interposed therebetween, and another threading member 24 may be provided on the lower side. In this case, it is preferable that the upper and lower threading members 22 and 24 and the support plate 23 are fixed to each other by tightening screws.

  The through members 22 on both sides of the boundary wall are provided on both sides of the refractory material 14 so as to sandwich the refractory material 14 surrounding the floor beam 12. The support plate 23 is provided so as to contact the lower surface of the refractory material 14 surrounding the floor beam 12.

  And the field wall part 30 is attached by using the floor beam 26 on the lower floor side as a support part on the lower end side and the support plate 23 as a support part on the upper end side. The boundary wall portion 30 has a structure in which base frames made of runners and studs are provided in two rows in the wall thickness direction. Specifically, the boundary wall 30 includes an upper runner 31, a lower runner 32, and a stud 33 as one base frame (first frame), and an upper runner 34 and a lower runner 35 as the other base frame (second frame). And a stud 36. In particular, the upper runners 31 and 34 are fixed to the support plate 23 in a state where the upper runners 31 and 34 are in contact with the lower surface of the support plate 23. Each of the base frames is disposed so as to be separated from each other at a central portion in the wall thickness direction, and a wall surface material 37 made of a gypsum board is fixed to each outside.

  The wall surface material 37 is fixed to the upper support plate 23 and the lower floor beam 26 with a gap therebetween, and the gap portion is filled with a sealing material 38. In the present embodiment, two plaster boards are used as the wall material 37, and the upper and lower gaps of the gypsum board outside the wall of the two layers of gypsum board are above and below the gypsum board inside the wall. It is comprised so that it may become smaller than a clearance gap.

  A heat insulating material 39 is attached inside the boundary wall portion 30 in a state of being fixed to the base frame, and FIG. 3 shows the arrangement of the heat insulating material 39 inside the wall. The heat insulating material 39 is made of, for example, glass wool, and has heat insulating performance, sound insulation performance, and fire resistance performance. The heat insulating material 39 is fixed between the pair of studs 33 or between the studs 36, and the base frames arranged in the wall thickness direction are discretely arranged at predetermined intervals in the wall surface direction. In this case, the heat insulating materials 39 are arranged so as to alternate between the one frame side and the other frame side along the wall surface direction.

  In the configuration shown in FIG. 3, the heat insulating material 39 is arranged so that it does not overlap in the wall thickness direction on one frame side and the other frame side. The heat insulating material 39 may be arranged in a state where it partially overlaps with the frame side in the wall thickness direction. In any case, it is only necessary that the heat insulating materials 39 are alternately arranged on one frame side and the other frame side.

  The construction procedure of the field wall 30 at the time of construction of the building 10 will be described.

  In a state in which the frame of the building 10 such as the floor beams 11 and 12 is constructed, the fireproof material 14 is applied to the floor beam 12 as the fireproof beam, and then the ceiling construction work is performed. At this time, the ceiling hanger 15, the field edge receiver 16, and the field edge 18 are appropriately attached, and the ceiling surface material 19 is fixed to the lower surface of the field edge 18. Further, the threading member 22 and the support plate 23 are attached.

  Here, the bracket 21 is fixed in advance to the end portion of the field edge receiver 16, and after the field edge receiver 16 is constructed, the threading member 22 is screwed to the bracket 21 at each end of the field edge receiver 16. To fix. After that, the support plate 23 is fixed with screws or the like so as to span the left and right thread members 22 with the floor beam 12 interposed therebetween. When the through members 22 and 24 are provided above and below the support plate 23, the upper and lower through members 22 and 24 and the support plate 23 are fastened together with screws.

  Thereafter, the boundary wall 30 is constructed. In this case, the upper runners 31 and 34 of the base frame are fixed to the support plate 23 with screws or the like, and the lower runners 32 and 35, the studs 33 and 36, and the heat insulating material 39 are applied. Then, the wall material 37 is fixed to the base frame and the sealing material 38 is filled. By such a series of operations, the boundary wall structure shown in FIG. 1 is constructed.

  According to the embodiment described in detail above, the following excellent effects can be obtained.

  A support plate 23 is provided under the floor beam 12 so as to be bridged between the field receivers 16 on both sides with the boundary wall portion 30 interposed therebetween, and the base frame of the boundary wall portion 30 is supported by the support plate 23. . In this case, by newly providing the support plate 23 below the floor beam 12, the field wall 30 can be supported regardless of the floor beam 12, including the operation of covering the floor beam 12 with the refractory material 14. . Further, since the support plate 23 is provided between the field receivers 16 on both sides of the boundary wall portion 30 and is supported on both sides in the horizontal direction, a desired plate 23 is supported in supporting the boundary wall portion 30. Can give strength. As a result, it is possible to properly construct the field wall portion 30 while ensuring the fire resistance performance in the field wall region.

  Moreover, in the said structure, the construction work of a ceiling part and a field wall part can be performed in the state which coat | covered the fireproof material 14 to the floor beam 12, ie, the state after performing the coating work of the floor beam 12. FIG. In this case, in order to prioritize the support of the boundary wall with respect to the floor beam 12, there is a restriction that the refractory material 14 must be covered later, or the refractory material 14 is divided into a plurality of pieces and wound. Does not occur. Therefore, the work can be facilitated and work errors such as forgetting to perform work such as covering the floor beam 12 can be suppressed.

  The support plate 23 is in contact with the refractory material 14 and is sandwiched between the refractory material 14 and the floor beam 12. In this case, the refractory material 14 is provided in a state of being sandwiched between the floor beam 12 and the support plate 23, and the refractory material 14 of the floor beam 12 and the boundary wall portion 30 ensure continuity and fire resistance performance. Can be granted.

  When the field receiver 16 is present as a ceiling structure, the support plate 23 can be conveniently held at a desired position by using the field receiver 16.

  A plurality of support plates 23 are fixed at predetermined intervals with respect to the threading member 22 provided so as to extend along the longitudinal direction of the floor beam 12. In this case, when the field wall 30 is fixedly supported along the floor beam 12, a suitable configuration can be realized.

  By configuring the support plate 23 with a plate-like member, a fixing surface for fixing the base frame of the field wall 30 can be suitably provided, and the construction of the field wall 30 is facilitated. In this case, it is possible to realize a configuration that is superior in terms of workability when constructing the boundary wall portion 30.

  In the boundary wall portion 30, a sealing material 38 is filled in a gap portion between the support plate 23 and the wall surface material 37. In this case, since the support plate 23 exists above the boundary wall 30, the filling work of the sealing material 38 can be easily performed.

  In the boundary wall portion 30, two rows of base frames are provided side by side in the wall thickness direction, and the heat insulating materials 39 are arranged on each of the base frames so as to alternate along the wall surface direction. In this case, it is possible to reduce the usage of the heat insulating material 39 in the boundary wall portion 30 while equalizing the heat insulation, sound insulation, and fire resistance performance in the boundary wall portion 30 on both sides of the boundary wall portion 30. Further, since the heat insulating material 39 is distributed and arranged in each of the two rows of base frames, the ventilation portion can be easily formed in the boundary wall portion 30. Therefore, desired boundary wall performance can be realized while simplifying the configuration.

[Other Embodiments]
The present invention is not limited to the description of the above embodiment, and may be implemented as follows, for example.

  -The structure of a wall support material is not restricted to said thing, A suitable change is possible. For example, the support plate 23 may be extended in the direction of the wall surface of the field wall 30 and may be configured to have a length that spans the plurality of field receivers 16. Further, the wall support material may be other than a plate-like member, and for example, a steel bar such as C-shaped steel or square steel may be used.

  In the above embodiment, the support plate 23 is fixed by the field edge receiver 16 as the ceiling structure, but this may be changed, for example, by the field edge 18 or the ceiling hanger 15 as the ceiling structure. It is good also as a structure which fixes the support plate 23. FIG.

  -In the above-mentioned embodiment, although the example of application to the multi-story building constructed by the steel frame construction method was explained, application to other buildings is also possible. For example, it can be applied to a one-story building or a building constructed by a conventional wooden construction method.

  DESCRIPTION OF SYMBOLS 10 ... Building, 11 ... Floor beam, 12 ... Floor beam (fireproof beam), 14 ... Refractory material, 16 ... Field guard (ceiling structure), 21 ... Bracket (connection member), 22 ... Through material (connection member) 31, 34 ... upper runner (base frame), 37 ... wall material, 38 ... sealing material, 39 ... heat insulating material.

Claims (6)

The building has a fire wall covered with a fire resistant material, and the building wall structure is provided along the fire resistant beam, and a field wall portion is provided below the fire resistant beam,
A wall support member is provided below the refractory beam so as to bridge between the ceiling structures existing on both sides of the boundary wall portion, and the base frame of the boundary wall portion is provided by the wall support member. Supported,
The wall support material is a flat plate-like member arranged with the plate surface facing up and down, and the upper surface is in contact with the refractory material and is provided in a state of sandwiching the refractory material with the refractory beam. ,
The base frame is fixed to the wall support material in a state of being in contact with the lower surface of the wall support material,
The ceiling structure is a field receiver supported by being suspended by another beam member at the same height as the fireproof beam,
The building wall structure according to claim 1, wherein the wall support member is connected to the field receiver via a connecting member. The building has a fire wall covered with a fire resistant material, and a wall structure of the building is provided with a field wall portion below the fire beam along the fire beam.
A wall support member is provided below the refractory beam so as to bridge between the ceiling structures existing on both sides of the boundary wall portion, and the base frame of the boundary wall portion is provided by the wall support member. Supported,
The refractory beam has the entire side and bottom covered with the refractory material,
The wall support material is a flat plate-like member arranged with the plate surface facing up and down, and the upper surface is in contact with the refractory material and is provided in a state of sandwiching the refractory material with the refractory beam. ,
The base frame is fixed to the wall support material in a state of being in contact with the lower surface of the wall support material,
The ceiling structure is a field receiver supported by being suspended by another beam member at the same height as the fireproof beam,
The building wall structure according to claim 1, wherein the wall support member is connected to the field receiver via a connecting member. The field edge receiver is supported by being hung on another beam member that is at the same height and orthogonal to the fireproof beam,
The connecting member is provided so as to extend along the longitudinal direction of the fire-resistant beam on the upper side of the wall support member and a bracket fixed to the side surface of the field edge portion side of the field edge receiver. With threading material,
The wall support material, Sakaikabe building structure according to claim 1 or 2, characterized in that it is connected from below to the through member which is fixed to the bracket. The building wall structure according to claim 3 , wherein a plurality of the wall support members are fixed to the through member at a predetermined interval in a longitudinal direction thereof. The said boundary wall part has a wall surface material fixed with respect to the said base frame, The sealing material is filled with the clearance gap part between the said wall support material and the said wall surface material, It is characterized by the above-mentioned. 5. The building wall structure according to any one of 1 to 4 . The boundary wall portion includes, as the base frame, a first frame and a second frame arranged side by side in the wall thickness direction, and each of the frames includes the first frame side and the first frame along the wall surface direction. The building wall structure according to any one of claims 1 to 5 , wherein a heat insulating material is arranged so as to alternate between the two frames.

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