JP2019027021A - Laminated floor slab - Google Patents
Laminated floor slab Download PDFInfo
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- JP2019027021A JP2019027021A JP2017143801A JP2017143801A JP2019027021A JP 2019027021 A JP2019027021 A JP 2019027021A JP 2017143801 A JP2017143801 A JP 2017143801A JP 2017143801 A JP2017143801 A JP 2017143801A JP 2019027021 A JP2019027021 A JP 2019027021A
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- 239000000463 material Substances 0.000 claims description 18
- 239000002023 wood Substances 0.000 claims description 15
- 230000009191 jumping Effects 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 239000002648 laminated material Substances 0.000 description 7
- 239000004567 concrete Substances 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 239000002356 single layer Substances 0.000 description 3
- 229920002522 Wood fibre Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000011381 foam concrete Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 239000002025 wood fiber Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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- Panels For Use In Building Construction (AREA)
Abstract
Description
本発明は、積層床版に関する。 The present invention relates to a laminated floor slab.
バルコニーや外廊下等の跳ね出し部を有する建物が知られている。例えば特許文献１には、コンクリート造の床部によって跳ね出し部が形成された建物が開示されている。 Buildings with protruding parts such as balconies and outer corridors are known. For example, Patent Document 1 discloses a building in which a protruding portion is formed by a concrete floor portion.
ここで近年、意匠性や軽量化の観点から、木質の床版を利用して建物の床を構築することが望まれている。しかし、木質の床版はコンクリート造の床版と比較して耐力が小さいため、木質の床版を利用して跳ね出し部を形成することは困難であった。 In recent years, it has been desired to construct a floor of a building using a wooden floor slab from the viewpoint of design and weight reduction. However, since the wooden floor slab has a lower proof strength than the concrete floor slab, it is difficult to form the protruding portion using the wooden floor slab.
本発明は上記事実に鑑み、木質の床版を利用して跳ね出し部を形成することができる積層床版を提供することを目的とする。 An object of this invention is to provide the laminated floor slab which can form a protrusion part using a wooden floor slab in view of the said fact.
請求項１に記載の積層床版は、第１方向に架設され、両端部が柱、梁、又は壁に支持された木質の第１床版と、前記第１床版の上部又は下部に積層配置され、前記第１方向と直交する第２方向に跳ね出す第２床版と、前記第１床版と前記第２床版とを接合する接合手段と、を有する。 The laminated floor slab according to claim 1 is laminated on a wooden first floor slab constructed in a first direction and supported at both ends by pillars, beams, or walls, and above or below the first floor slab. A second floor slab that is disposed and projects in a second direction orthogonal to the first direction; and a joining means that joins the first floor slab and the second floor slab.
上記構成によれば、両端部が支持された木質の第１床版が第１方向に架設され、第１床版に積層されて接合された第２床版が第１方向と直交する第２方向に跳ね出している。このため、積層床版に生じる第１方向の応力を第１床版で負担しつつ、第２方向の応力を第２床版で負担することができ、木質の第１床版を利用して第２床版によって跳ね出し部を形成することができる。 According to the said structure, the 2nd floor slab in which the wooden 1st floor slab with which both ends were supported was constructed in the 1st direction, and was laminated | stacked and joined to the 1st floor slab is orthogonal to the 1st direction. Jumping in the direction. For this reason, the stress in the first direction generated in the laminated floor slab can be borne by the first floor slab, and the stress in the second direction can be borne by the second floor slab. The spring-out portion can be formed by the second floor slab.
請求項２に記載の積層床版は、請求項１に記載の積層床版であって、前記第２床版は木質とされている。 The laminated floor slab according to claim 2 is the laminated floor slab according to claim 1, wherein the second floor slab is made of wood.
上記構成によれば、第２床版が木質とされているため、木質の積層床版によって跳ね出し部を形成することができる。 According to the above configuration, since the second floor slab is made of wood, the protruding portion can be formed by the wood laminated floor slab.
請求項３に記載の積層床版は、請求項２に記載の積層床版であって、前記第１床版及び前記第２床版の少なくとも一方の接合面とは反対側の面には、木質の防火被覆材が設けられている。 The laminated floor slab according to claim 3 is the laminated floor slab according to claim 2, wherein a surface opposite to at least one joining surface of the first floor slab and the second floor slab, A woody fireproof covering is provided.
上記構成によれば、第１床版及び第２床版の少なくとも一方の接合面とは反対側の面に防火被覆材を設けることで、積層床版を防火構造とすることができる。また、防火被覆材を木質とすることで、積層床版全体を木質で統一することができる。 According to the said structure, a laminated floor slab can be made into a fire prevention structure by providing a fire prevention coating material in the surface on the opposite side to the joining surface of at least one of a 1st floor slab and a 2nd floor slab. Moreover, the whole laminated floor slab can be unified with wood by making the fireproof covering material wood.
本発明によれば、木質の床版を利用して跳ね出し部を形成することができる。 According to the present invention, the protruding portion can be formed using a wooden floor slab.
以下、本発明の実施形態の一例における積層床版について、図１〜図３を用いて説明する。なお、各図中において、積層床版が架渡される方向を第１方向とし、第１方向に直交する方向を第２方向とする。 Hereinafter, a laminated floor slab according to an embodiment of the present invention will be described with reference to FIGS. In each figure, the direction in which the laminated floor slab is bridged is defined as the first direction, and the direction orthogonal to the first direction is defined as the second direction.
＜構造＞
図１に示すように、本実施形態の積層床版１０は、他の複数の床版１２とともに建物の床１４を構成しており、床１４は、第２方向へ延びる複数の壁１６及び梁１７、第１方向へ延びる複数の壁柱１８、及び壁柱１８間を第２方向へ延びる間仕切壁２０によって支持されている。
<Structure>
As shown in FIG. 1, the laminated floor slab 10 of this embodiment forms a floor 14 of a building together with a plurality of other floor slabs 12, and the floor 14 includes a plurality of walls 16 and beams extending in the second direction. 17, a plurality of wall pillars 18 extending in the first direction, and a partition wall 20 extending between the wall pillars 18 in the second direction.
また、床１４は、第１方向へ跳ね出す第１跳ね出し部２２と、第１方向に直交する第２方向へ跳ね出す第２跳ね出し部２４とを有しており、第１跳ね出し部２２と第２跳ね出し部２４とが重なる隅部に第１方向及び第２方向の２方向に跳ね出す２方向跳ね出し部２６が形成されている。 The floor 14 includes a first jumping part 22 that jumps in the first direction and a second jumping part 24 that jumps in the second direction orthogonal to the first direction. A two-way jumping portion 26 that jumps in two directions of the first direction and the second direction is formed at a corner where the 22 and the second jumping portion 24 overlap.
本実施形態の積層床版１０は、床１４の第２方向における端部、すなわち第２跳ね出し部２４が形成されている部分にそれぞれ配置されている。また、図２及び図３に示すように、積層床版１０は、第１床版２８と、第１床版２８の上部に積層された第２床版３０とを有している。 The laminated floor slab 10 of the present embodiment is disposed at an end portion of the floor 14 in the second direction, that is, a portion where the second protruding portion 24 is formed. As shown in FIGS. 2 and 3, the laminated floor slab 10 includes a first floor slab 28 and a second floor slab 30 laminated on top of the first floor slab 28.
第１床版２８は、例えば複数のラミナ材３２を木質繊維３２Ａの繊維方向が直交するように重ね合わせて接着した木質の直交集成材（ＣＬＴ、Ｃｒｏｓｓ Ｌａｍｉｎａｔｅｄ Ｔｉｍｂｅｒ）で構成されている。 The first floor slab 28 is made of, for example, a wooden cross laminated member (CLT) in which a plurality of lamina members 32 are stacked and bonded so that the fiber directions of the wooden fibers 32A are orthogonal to each other.
本実施形態では、一例として、第１床版２８（直交集成材）は三層構造とされており、厚み方向における最外層の木質繊維３２Ａの繊維方向が長辺方向（第１方向）に沿っており、中間層の木質繊維３２Ａの繊維方向が短辺方向（第２方向）に沿っている。 In the present embodiment, as an example, the first floor slab 28 (orthogonal laminated timber) has a three-layer structure, and the fiber direction of the wood fibers 32A in the outermost layer in the thickness direction is along the long side direction (first direction). The fiber direction of the wood fiber 32A of the intermediate layer is along the short side direction (second direction).
また、図３に示すように、第１床版２８は第１方向に架設されて両端部が壁１６又は梁１７に支持されており、これにより、第１床版２８は、壁１６又は梁１７への架渡し方向が強軸方向とされ、架渡し方向に直交する方向が弱軸方向とされている。 Further, as shown in FIG. 3, the first floor slab 28 is installed in the first direction and both ends thereof are supported by the wall 16 or the beam 17, so that the first floor slab 28 is supported by the wall 16 or the beam. The crossing direction to 17 is a strong axis direction, and the direction orthogonal to the crossing direction is a weak axis direction.
第２床版３０は、例えば単層の無垢材等の構造用木材で構成されており、図２に示すように、先端側（図２における右側）が壁１６に対して第２方向に跳ね出すことで第２跳ね出し部２４を構成している。 The second floor slab 30 is made of structural wood such as a single layer of solid wood, for example. As shown in FIG. 2, the tip side (the right side in FIG. 2) springs in the second direction with respect to the wall 16. The 2nd springing-out part 24 is comprised by taking out.
一方、第２床版３０の基端側（図２における左側）の下面は、接着剤によって第１床版２８の上面に接着されている。なお、第１床版２８の上面（接合面）と第２床版３０の下面（接合面）とを接合する接合手段としては、接着剤による接着の他、釘、ビス、ピン、又はボルトによる接合等が挙げられる。 On the other hand, the lower surface on the base end side (left side in FIG. 2) of the second floor slab 30 is bonded to the upper surface of the first floor slab 28 with an adhesive. In addition, as a joining means for joining the upper surface (joint surface) of the first floor slab 28 and the lower surface (joint surface) of the second floor slab 30, in addition to adhesion by an adhesive, a nail, a screw, a pin, or a bolt is used. Joining etc. are mentioned.
また、第１床版２８の先端側（図２における右側）には、第２床版３０の第２跳ね出し部２４の下面に沿って第２方向へ延びる延長床版３６が設けられている。延長床版３６は、第１床版２８と同様に直交集成材で構成されており、第１床版２８と一体形成されている。なお、第１床版２８の先端側に延長床版３６が設けられていなくてもよく、延長床版３６が第１床版２８とは別部材とされていてもよい。 Further, an extended floor slab 36 extending in the second direction along the lower surface of the second protruding portion 24 of the second floor slab 30 is provided on the tip side of the first floor slab 28 (the right side in FIG. 2). . The extended floor slab 36 is made of orthogonal laminated material like the first floor slab 28 and is integrally formed with the first floor slab 28. The extended floor slab 36 may not be provided on the tip side of the first floor slab 28, and the extended floor slab 36 may be a separate member from the first floor slab 28.
また、延長床版３６は何ら荷重を負担しておらず、積層床版１０は第２床版３０のみで延長床版３６の荷重、及び積層床版１０の第２方向に生じる応力を負担できるように設計されている。一方、第１床版２８は、積層床版１０の第１方向に生じる応力、及び第２跳ね出し部２４の反力を負担できるように設計されている。 Further, the extended floor slab 36 bears no load, and the laminated floor slab 10 can bear the load of the extended floor slab 36 and the stress generated in the second direction of the laminated floor slab 10 only by the second floor slab 30. Designed to be On the other hand, the first floor slab 28 is designed so as to bear the stress generated in the first direction of the laminated floor slab 10 and the reaction force of the second protruding portion 24.
さらに、第２床版３０の上部には、防火被覆材３８が積層されている。防火被覆材３８は、例えば厚さが４０ｍｍ以上とされた木材であり、第２床版３０の上面全体を被覆している。なお、防火被覆材３８は、第２床版３０の上面ではなく第１床版２８の下面や、第１床版２８と第２床版３０との間に設けられていてもよく、第２床版３０の上面及び第１床版２８の下面にそれぞれ設けられていてもよい。また、耐火規定に従い、防火被覆材３８を設けない構成とすることも可能である。 Furthermore, a fireproof covering material 38 is laminated on the second floor slab 30. The fireproof coating material 38 is, for example, wood having a thickness of 40 mm or more, and covers the entire upper surface of the second floor slab 30. The fireproof covering material 38 may be provided not on the upper surface of the second floor slab 30, but on the lower surface of the first floor slab 28, or between the first floor slab 28 and the second floor slab 30. The upper surface of the floor slab 30 and the lower surface of the first floor slab 28 may be provided respectively. Moreover, it is also possible to adopt a configuration in which the fireproof covering material 38 is not provided in accordance with the fireproof regulations.
床１４の積層床版１０以外の床版１２は、図２に示すように、複数のラミナ材４０を重ね合わせて接着した直交集成材で構成されており、積層床版１０と同様に、上面に防火被覆材４２が積層されている。また、隣合う床版１２と積層床版１０とは、互いにスプライン接合されており、必要に応じて図示しない接合金物で緊結されている。 As shown in FIG. 2, the floor slabs 12 other than the laminated floor slab 10 of the floor 14 are composed of orthogonal laminated materials in which a plurality of lamina materials 40 are laminated and bonded together. The fireproof covering material 42 is laminated on. Adjacent floor slab 12 and laminated floor slab 10 are spline-bonded to each other, and are fastened with a joint metal (not shown) as required.
また、床版１２は、ラミナ材４０の厚さが積層床版１０の第１床版２８のラミナ材３２の厚さより厚くなっている。具体的には、床版１２の厚さは積層床版１０の厚さ、すなわち第１床版２８の厚さと第２床版３０の厚さとの和と等しくされており、これにより、積層床版１０の上面と床版１２の上面とが同一面とされている。 Further, in the floor slab 12, the thickness of the lamina material 40 is thicker than the thickness of the lamina material 32 of the first floor slab 28 of the laminated floor slab 10. Specifically, the thickness of the floor slab 12 is equal to the thickness of the laminated floor slab 10, that is, the sum of the thickness of the first floor slab 28 and the thickness of the second floor slab 30. The upper surface of the plate 10 and the upper surface of the floor slab 12 are flush with each other.
＜作用及び効果＞
本実施形態によれば、積層床版１０の第１床版２８が木質とされているため、木質の第１床版２８を利用して第２跳ね出し部２４を形成することができる。さらに、積層床版１０の第２床版３０も木質とされているため、第２跳ね出し部２４を木質とすることができ、コンクリート造の床版によって建物の床１４を形成する構成と比較して、床１４の意匠性を高めることができるとともに、床１４を軽量化することができる。
<Action and effect>
According to the present embodiment, since the first floor slab 28 of the laminated floor slab 10 is made of wood, the second jumping portion 24 can be formed by using the first floor slab 28 made of wood. Further, since the second floor slab 30 of the laminated floor slab 10 is also made of wood, the second protruding portion 24 can be made of wood, and compared with a configuration in which the floor 14 of the building is formed by a concrete floor slab. And the design property of the floor 14 can be improved and the floor 14 can be reduced in weight.
ここで、本実施形態の積層床版１０は、壁１６又は梁１７への架渡し方向である第１方向、及び跳ね出し方向である第２方向の２方向に応力が生じることによって、２方向応力状態とされている。しかしながら、本実施形態の積層床版１０によれば、第１方向が強軸方向とされた直交集成材によって第１床版２８が構成されており、第２方向に跳ね出す第２床版３０が第１床版２８に積層されて接合されている。 Here, the laminated floor slab 10 according to the present embodiment has two directions as a result of stress being generated in two directions: a first direction that is a transfer direction to the wall 16 or the beam 17 and a second direction that is a jumping direction. It is in a stress state. However, according to the laminated floor slab 10 of this embodiment, the 1st floor slab 28 is comprised by the orthogonal laminated material by which the 1st direction was made into the strong axis direction, and the 2nd floor slab 30 which bounces off in a 2nd direction is used. Are laminated and bonded to the first floor slab 28.
このため、積層床版１０に生じる第１方向の応力を第１床版２８で負担するとともに、第２方向の応力を第２床版３０で負担することができ、コンクリート造の床版より耐力の小さい木質の床版によって第２跳ね出し部２４を形成することが可能となる。 For this reason, the stress in the first direction generated in the laminated floor slab 10 can be borne by the first floor slab 28, and the stress in the second direction can be borne by the second floor slab 30. The second protruding portion 24 can be formed by a small wooden floor slab.
また、本実施形態によれば、積層床版１０の第２床版３０の上面に、防火被覆材３８が設けられているため、積層床版１０を防火構造とすることができる。さらに、防火被覆材３８が木材で構成されているため、積層床版１０全体を木質で統一することができ、意匠性を高めることができる。 Moreover, according to this embodiment, since the fireproof coating material 38 is provided on the upper surface of the second floor slab 30 of the laminated floor slab 10, the laminated floor slab 10 can have a fireproof structure. Furthermore, since the fireproof covering 38 is made of wood, the entire laminated floor slab 10 can be unified with wood, and the design can be improved.
＜その他の実施形態＞
以上、本発明について実施形態の一例を説明したが、本発明はかかる実施形態に限定されるものではなく、本発明の範囲内にて他の種々の実施形態が可能である。
<Other embodiments>
As mentioned above, although an example of embodiment was demonstrated about this invention, this invention is not limited to this embodiment, Various other embodiment is possible within the scope of the present invention.
例えば、上記実施形態では、積層床版１０の第１床版２８が三層構造の直交集成材で構成されていたが、直交集成材は二層構造であってもよく、四層以上の層で構成されていてもよい。また、必要とされる耐力が確保できる場合、第１床版２８は直交集成材ではなく単板の繊維方向を揃えて積層して接着した単板積層材（ＬＶＬ（Ｌａｍｉｎａｔｅｄ Ｖｅｎｅｅｒ Ｌｕｍｂｅｒ））で構成されていてもよく、単層の無垢材で構成されていてもよい。 For example, in the above-described embodiment, the first floor slab 28 of the laminated floor slab 10 is configured by the three-layered orthogonal laminated material. However, the orthogonal laminated material may have a two-layered structure, and may have four or more layers. It may be comprised. If the required proof strength can be ensured, the first floor slab 28 is not a cross-gathered material but a single-plate laminated material (LVL (Laminated Veneer Number)) that is laminated and bonded with the fiber directions of the single plates aligned. It may be made of a single layer of solid material.
一方、上記実施形態では、積層床版１０の第２床版３０が単層の無垢材等の構造用木材で構成されていたが、直交集成材で構成されていてもよい。さらに、第２床版３０は鋼板やコンクリートで構成されていてもよく、軽量気泡コンクリート（ＡＬＣ（Ａｕｔｏｃｌａｖｅｄ Ｌｉｇｈｔｗｅｉｇｈｔ ａｅｒａｔｅｄ Ｃｏｎｃｒｅｔｅ））で構成されていてもよい。 On the other hand, in the said embodiment, although the 2nd floor slab 30 of the laminated floor slab 10 was comprised with structural woods, such as a single-layer solid material, you may be comprised with the orthogonal laminated material. Furthermore, the 2nd floor slab 30 may be comprised with the steel plate or concrete, and may be comprised with the lightweight cellular concrete (ALC (Autoclaved Lightweight aerated Concrete)).
同様に、防火被覆材３８はコンクリートやモルタルで構成されていてもよい。なお、第２床版３０が軽量気泡コンクリート等の防火材料で構成されている場合、第２床版３０が防火被覆材を兼ねることができるため、防火被覆材３８は設けられていなくてもよい。 Similarly, the fireproof covering material 38 may be made of concrete or mortar. In addition, when the 2nd floor slab 30 is comprised with fireproof materials, such as a lightweight cellular concrete, since the 2nd floor slab 30 can serve as a fireproof covering material, the fireproof covering material 38 does not need to be provided. .
また、上記実施形態の積層床版１０では、第１床版２８の上部に第２床版３０が積層配置されていたが、第２床版３０の上部に第１床版２８が積層配置されていてもよい。さらに、第１床版２８は壁１６又は梁１７に両端部が支持されていたが、壁柱１８や間仕切壁２０に支持されていてもよい。 Further, in the laminated floor slab 10 of the above-described embodiment, the second floor slab 30 is laminated on the first floor slab 28. However, the first floor slab 28 is laminated on the second floor slab 30. It may be. Furthermore, although both ends of the first floor slab 28 are supported by the wall 16 or the beam 17, they may be supported by the wall pillar 18 or the partition wall 20.
１０ 積層床版
１６ 壁
１７ 梁
２８ 第１床版
３０ 第２床版
３８ 防火被覆材
10 Laminated floor slab 16 Wall 17 Beam 28 First floor slab 30 Second floor slab 38 Fireproof coating material
Claims (3)
前記第１床版の上部又は下部に積層配置され、前記第１方向と直交する第２方向に跳ね出す第２床版と、
前記第１床版と前記第２床版とを接合する接合手段と、
を有する積層床版。 A wooden first floor slab constructed in a first direction and supported at both ends by pillars, beams or walls;
A second floor slab placed in a stacked manner on the top or bottom of the first floor slab and jumping out in a second direction orthogonal to the first direction;
Joining means for joining the first floor slab and the second floor slab;
Laminated floor slab with.
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| JP7543763B2 (en) | 2020-08-03 | 2024-09-03 | 株式会社大林組 | Laminated structure and lamination method |
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