JP6117960B1 - Suspended ceiling foundation structure and repair method of existing suspended ceiling foundation - Google Patents
Suspended ceiling foundation structure and repair method of existing suspended ceiling foundation Download PDFInfo
- Publication number
- JP6117960B1 JP6117960B1 JP2016049789A JP2016049789A JP6117960B1 JP 6117960 B1 JP6117960 B1 JP 6117960B1 JP 2016049789 A JP2016049789 A JP 2016049789A JP 2016049789 A JP2016049789 A JP 2016049789A JP 6117960 B1 JP6117960 B1 JP 6117960B1
- Authority
- JP
- Japan
- Prior art keywords
- receiver
- field
- field edge
- reinforcing
- suspension
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 15
- 239000000725 suspension Substances 0.000 claims abstract description 65
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 63
- 239000012779 reinforcing material Substances 0.000 claims abstract description 60
- 239000000463 material Substances 0.000 claims abstract description 58
- 230000002787 reinforcement Effects 0.000 claims abstract description 50
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 238000010276 construction Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Working Measures On Existing Buildindgs (AREA)
Abstract
【課題】吊り天井下地構造の耐震性を高める。【解決手段】当課題に対して提案する吊り天井下地構造は、野縁１と、野縁１と直交する方向に延伸し、野縁１と接続される野縁受け２と、野縁受け２を懸吊する吊りボルト３と、野縁受け２の間で野縁受け２と同じ方向に延伸し、野縁１と接続される補強野縁受け１０と、吊りボルト３の間で野縁１と同じ方向に延伸し、補強野縁受け１０と接続される交差補強材１１と、補強野縁受け１０及び交差補強材１１を懸吊する懸吊補強材１２と、補強野縁受け１０と懸吊補強材１１との間及び交差補強材１１と懸吊補強材１２との間に設けられるブレース材１３と、を含むことを特徴とする。【選択図】図１[PROBLEMS] To improve the earthquake resistance of a suspended ceiling foundation structure. A suspended ceiling foundation structure proposed for this problem includes a field edge 1, a field edge receiver 2 that extends in a direction orthogonal to the field edge 1, and is connected to the field edge 1, and a field edge receiver 2. Between the suspension bolt 3 and the field receiver 2 extending in the same direction as the field receiver 2 and connected to the field edge 1 and the field edge 1 between the suspension bolt 3 and the suspension bolt 3. , A cross reinforcing material 11 that is connected to the reinforcing field edge receiver 10, a suspension reinforcing material 12 that suspends the reinforcing field edge receiver 10 and the cross reinforcing material 11, and a reinforcing field edge receiver 10 and a suspension. The brace material 13 provided between the suspension reinforcement material 11 and between the cross reinforcement material 11 and the suspension reinforcement material 12 is included. [Selection] Figure 1
Description
吊り天井の下地における耐震補強に関する技術を以下に開示する。 The technology related to seismic reinforcement on the base of the suspended ceiling is disclosed below.
平行に並べた野縁に化粧ボード等の天井材を取り付け、この野縁を、野縁と直交する方向に並べた野縁受けに固定し、そして、この野縁受けを吊りボルトにて懸吊する、吊り天井の下地構造に関し、特許文献１，２に開示されるような耐震補強の構造が採用されている。すなわち、野縁受けと吊りボルトの上部とをつなぐ斜めのブレース材を導入し、耐震性を高める構造である。しかし、東日本大震災クラスの地震を想定した場合、ブレース材の導入だけでは十分とは言い難い。 A ceiling material such as a decorative board is attached to the field edges arranged in parallel, this field edge is fixed to a field edge receiver arranged in a direction perpendicular to the field edge, and this field edge receiver is suspended by a suspension bolt. As for the base structure of the suspended ceiling, the structure of seismic reinforcement as disclosed in Patent Documents 1 and 2 is adopted. That is, it is a structure in which an oblique brace material connecting the field edge receiver and the upper part of the suspension bolt is introduced to improve the earthquake resistance. However, when assuming an earthquake of the Great East Japan Earthquake class, it is difficult to say that the introduction of brace material is sufficient.
このような背景に鑑みて本発明は、吊り天井の下地構造において、より耐震性を高めることができ、また、既存の吊り天井に対して導入可能な、耐震補強の構造を提案する。 In view of such a background, the present invention proposes a seismic reinforcement structure that can further improve the earthquake resistance in the base structure of the suspended ceiling and can be introduced into an existing suspended ceiling.
当課題に対して提案する吊り天井下地構造は、
野縁と、
該野縁と直交する方向に延伸し、前記野縁と接続される野縁受けと、
該野縁受けを懸吊する吊りボルトと、
前記野縁受けの間で前記野縁受けと同じ方向に延伸し、前記野縁と接続される補強野縁受けと、
前記吊りボルトの間で前記野縁と同じ方向に延伸し、前記補強野縁受けと接続される交差補強材と、
前記補強野縁受け及び前記交差補強材を懸吊する懸吊補強材と、
前記補強野縁受けと前記懸吊補強材との間及び前記交差補強材と前記懸吊補強材との間に設けられるブレース材と、
を含むことを特徴とする。
The suspended ceiling foundation structure proposed for this issue is
With the edge
A field receiver that extends in a direction perpendicular to the field edge and is connected to the field edge;
A suspension bolt for suspending the field receiver;
A reinforcing field receiver that extends in the same direction as the field receiver between the field receivers and is connected to the field edge;
A cross reinforcing material that extends in the same direction as the field edge between the suspension bolts and is connected to the reinforcement field edge receiver,
A suspension reinforcement for suspending the reinforcement field edge receiver and the cross reinforcement,
A brace material provided between the reinforcing field edge receiver and the suspension reinforcing material and between the cross reinforcing material and the suspension reinforcing material;
It is characterized by including.
一態様によると、前記補強野縁受けには筒形鋼材が使用され、この筒形鋼材の高さが、前記野縁受けの高さ以下である。また、前記懸吊補強材にも筒形鋼材を使用するのが適している。前記ブレース材には、断面ハット形のリインフォース部材を取り付けるとなおよい。 According to one aspect, a cylindrical steel material is used for the reinforcing field edge receiver, and the height of the tubular steel material is equal to or less than the height of the field edge receiver. It is also suitable to use a tubular steel material for the suspension reinforcement. It is more preferable that a reinforce member having a hat-shaped cross section is attached to the brace material.
この下地構造は、既存の吊り天井における下地改修に応用できる。
すなわち、野縁と、該野縁と直交して延伸し、前記野縁と接続される野縁受けと、該野縁受けを懸吊する吊りボルトと、を用いて構成されている既存の吊り天井における下地改修方法として、
前記既設の野縁受けの間に、該野縁受けと同じ方向に延伸する補強野縁受けを追加して前記野縁と接続し、
前記既設の吊りボルトの間に、前記野縁と同じ方向に延伸する交差補強材を追加して前記補強野縁受けと接続し、
前記補強野縁受け及び前記交差補強材を懸吊補強材により懸吊し、
前記補強野縁受け及び前記交差補強材と前記懸吊補強材との間にブレース材を設ける、
ことを含む下地改修方法を提案する。
This foundation structure can be applied to the foundation modification of existing suspended ceilings.
That is, an existing suspension composed of a field edge, a field edge receiver that extends perpendicularly to the field edge and is connected to the field edge, and a suspension bolt that suspends the field edge receiver. As a method of groundwork repair on the ceiling,
Between the existing field receivers, add a reinforcing field receiver extending in the same direction as the field receiver and connect to the field edge,
Between the existing suspension bolts, add a cross reinforcement extending in the same direction as the field edge, and connect to the reinforcement field edge receiver,
Suspend the reinforcing field edge receiver and the cross reinforcing material with a suspension reinforcing material,
A brace material is provided between the reinforcing field edge receiver and the cross reinforcing material and the suspension reinforcing material,
We propose a method for repairing the groundwork.
この吊り天井の下地改修方法において、前記補強野縁受けとして筒形鋼材を使用し、且つ該筒形鋼材は、前記野縁受けの高さ以下の高さをもつものとして、当該補強野縁受けに接続した前記交差補強材が前記既設の野縁受けの上部に当接する状態に施工するとよい。また、懸吊補強材も筒形鋼材とし、ブレース材には断面ハット形のリインフォース部材を取り付けるとよい。 In this suspended ceiling foundation repair method, a cylindrical steel material is used as the reinforcing field receiver, and the cylindrical steel material has a height equal to or lower than the height of the field receiver. It is preferable to construct the cross reinforcing material connected to the upper surface of the existing field edge receiver. The suspension reinforcing material may be a tubular steel material, and a brace material may be provided with a hat-shaped reinforce member.
上記特徴をもつ吊り天井下地構造は、互いに交差した補強野縁受けと交差補強材とが吊りボルトとは別の懸吊補強材によって懸吊され、さらにこの懸吊補強材と補強野縁受け及び交差補強材との間にブレース材を設けてあるから、従来の下地構造に比べて格段に揺れに強く変形し難い下地構造が実現される。加えて、既存の吊り天井において、既設の野縁受けの間と吊りボルトの間とに、補強野縁受けと交差補強材とをそれぞれ追加設置し、これらに懸吊補強材及びブレース材を固定する方法により、既存の吊り天井に対して、その下地構造を耐震補強することが比較的容易にできる。 In the suspended ceiling foundation structure having the above-described features, the reinforcing field receiver and the intersecting reinforcing material intersecting each other are suspended by a suspension reinforcing material different from the suspension bolt, and the suspension reinforcing material and the reinforcing field receiving member and Since the brace material is provided between the cross reinforcements, a ground structure that is much more resistant to shaking and hardly deformed compared to the conventional ground structure is realized. In addition, on existing suspended ceilings, additional reinforcement field receivers and cross reinforcements are installed between existing field receivers and between suspension bolts, and suspension reinforcements and brace members are fixed to these. By this method, it is relatively easy to seismically reinforce the foundation structure of an existing suspended ceiling.
図１に、一例として、コンクリート製の天井スラブに吊り下げられた吊り天井について、本発明に係る下地構造の実施形態を示してある。
この吊り天井下地構造は、従来式の構造として、化粧ボード等の天井材を固定するための野縁１と、この野縁１と直交する方向に延伸し、野縁１と接続される野縁受け２と、この野縁受け２を懸吊する吊りボルト３と、を含んでいる。野縁１にはシングル野縁とダブル野縁とが使用され、シングル野縁の２本おきにダブル野縁を設けてある。野縁受け２には溝形鋼材（Ｃチャンネル鋼材）が使用され、野縁１との交差点において一般的なクリップを使用し野縁１と接続されている。吊りボルト３は、コンクリートアンカーを介して天井スラブに上端が固定されて該天井スラブから垂下し、下端にボルト止めされた一般的なハンガーによって野縁受け２を保持し懸吊している。
FIG. 1 shows an embodiment of a foundation structure according to the present invention for a suspended ceiling suspended from a concrete ceiling slab as an example.
As a conventional structure, this suspended ceiling foundation structure has a field edge 1 for fixing a ceiling material such as a decorative board, and a field edge that extends in a direction perpendicular to the field edge 1 and is connected to the field edge 1. A receiver 2 and a suspension bolt 3 for suspending the field receiver 2 are included. For the field edge 1, a single field edge and a double field edge are used, and a double field edge is provided every two single field edges. A grooved steel material (C channel steel material) is used for the field edge receiver 2, and is connected to the field edge 1 using a general clip at the intersection with the field edge 1. The suspension bolt 3 has a top end fixed to a ceiling slab via a concrete anchor and hangs down from the ceiling slab.
これら野縁１、野縁受け２、吊りボルト３に追加して、補強野縁受け１０、交差補強材１１、懸吊補強材１２、ブレース材１３が設けられ、耐震補強構造が構成されている。本実施形態において、これら補強野縁受け１０、交差補強材１１、懸吊補強材１２、ブレース材１３には、いずれも図２に示す、高さ３２ｍｍ、幅１４ｍｍの筒形鋼材（すなわち、閉断面をもつ）が使用される。一般的な野縁受け２の高さが３８ｍｍなので、補強野縁受け１０の高さは、野縁受け２の高さよりも低い。この例のように、補強野縁受け１０には、野縁受け２の高さ以下の筒形鋼材を使用する。 In addition to these field edge 1, field edge receiver 2, and suspension bolt 3, a reinforcement field edge receiver 10, a cross reinforcement material 11, a suspension reinforcement material 12, and a brace material 13 are provided to constitute an earthquake resistant reinforcement structure. . In this embodiment, the reinforcing field edge receiver 10, the cross reinforcing material 11, the suspension reinforcing material 12, and the brace material 13 are all cylindrical steel materials having a height of 32 mm and a width of 14 mm shown in FIG. With a cross section) is used. Since the height of the general field receiver 2 is 38 mm, the height of the reinforcing field receiver 10 is lower than the height of the field receiver 2. As in this example, a cylindrical steel material having a height equal to or less than the height of the field receiver 2 is used for the reinforcing field receiver 10.
補強野縁受け１０は、野縁受け２の間、本実施形態では２本の野縁受け２の間のほぼ中央（見た目に中央という程度）において野縁受け２と同じ方向に延伸し、野縁１と接続される。野縁１と補強野縁受け１０との接続には、図３に示すクリップ２０を使用する。このクリップ２０は、例えば特願２０１４−１６９１９９にて特許出願済みのクリップと同類のものである。クリップ２０は、Ｍバーの野縁１の端縁に形成されている折り返し部に係止部２１を係止させて使用し、この係止部２１から上方へ延びた挟持板部２２の間に、補強野縁受け１０を挟み込んで挟持する。挟持板部２２は先端が鉤形に屈曲し、ここから上方へ締め付け板部２３が延出しており、この締め付け板部２３どうしをボルトで締め付けることで、野縁１と補強野縁受け１０とが接続される。接続後、挟持板部２２に開けられたビス孔を通してビス留めもされる。また、クリップ２０を設置した後、野縁１に対する当該クリップ２０の位置が変わらないように、下向きコ字形のクリップストッパ２４をクリップ２０の横に添えて野縁１へビス留めしておく。 The reinforcing field receiver 10 extends in the same direction as the field receiver 2 between the field receivers 2, in the present embodiment, at approximately the center between the two field receivers 2 (appears to be the center in appearance). Connected to edge 1. A clip 20 shown in FIG. 3 is used for connection between the field edge 1 and the reinforcing field edge receiver 10. The clip 20 is similar to the clip for which a patent application has been filed in Japanese Patent Application No. 2014-169199, for example. The clip 20 is used by engaging a locking portion 21 with a folded portion formed at the edge of the field edge 1 of the M bar, and between the clamping plate portions 22 extending upward from the locking portion 21. Then, the reinforcing field edge receiver 10 is sandwiched. The clamping plate portion 22 is bent in a bowl shape at its tip, and a clamping plate portion 23 extends upward from here. By tightening the clamping plate portions 23 with bolts, the field edge 1 and the reinforcement field edge receiver 10 Is connected. After the connection, it is also screwed through a screw hole opened in the clamping plate portion 22. After the clip 20 is installed, a downward U-shaped clip stopper 24 is attached to the side of the clip 20 and screwed to the field edge 1 so that the position of the clip 20 with respect to the field edge 1 does not change.
交差補強材１１は、野縁受け２を懸吊する吊りボルト３の間、本実施形態では２本の吊りボルト３の間のほぼ中央（見た目に中央という程度）において野縁１と同じ方向に延伸し、補強野縁受け１０と接続される。補強野縁受け１０と交差補強材１１との接続には、図４に示す補強材固定金具３０，４０を使用する。図４Ａに示す補強材固定金具３０と図４Ｂに示す補強材固定金具４０とは、左右が逆になっているのみで同構造である。この補強材固定金具３０，４０は、例えば特願２０１４−１６９１９９にて特許出願済みの補強材固定金具と同類のものである。例示した補強材固定金具３０，４０は、補強野縁受け１０に沿って延伸する固定板部３１，４１と、この固定板部３１，４１の側縁から交差補強材１１の延伸方向（つまり交差方向）に沿って延出する交差固定板部３２，４２と、交差固定板部３２，４２の上縁から鉤形に延出する係止部３３，４３と、を有する。図４Ｃに示すように、補強材固定金具３０，４０は、係止部３３，３４を交差補強材１１に係止させるようにして、補強野縁受け１０を挟んで左右に配設される。そして、固定板部３１，４１が補強野縁受け１０にビス留めされ、交差固定板部３２，４２及び係止部３３，３４が交差補強材１１にビス留めされて、補強野縁受け１０と交差補強材１１とを接続する。ビス孔はそれぞれ多数開けてあり、適宜選択して使用できる。このとき、上述したように補強野縁受け１０の高さが野縁受け２よりも低いので、野縁受け２の上に差し渡される交差補強材１１と補強野縁受け１０との間には隙間が空くが、固定板部３１，４１，３２，４２の高さはこの隙間分を考慮して設計されている。交差補強材１１は、このようにして補強野縁受け１０と接続されるが、野縁受け２には接続されず、野縁受け２の上部に当接して載っているだけである。 The cross reinforcing material 11 is in the same direction as the field edge 1 between the suspension bolts 3 for suspending the field edge receiver 2, and in the present embodiment, at substantially the center between the two suspension bolts 3. It is stretched and connected to the reinforcement edge receiver 10. Reinforcing material fixing brackets 30 and 40 shown in FIG. 4 are used for connection between the reinforcing field edge receiver 10 and the cross reinforcing material 11. The reinforcing material fixing metal fitting 30 shown in FIG. 4A and the reinforcing material fixing metal fitting 40 shown in FIG. 4B have the same structure except that the left and right are reversed. The reinforcing member fixing brackets 30 and 40 are similar to the reinforcing member fixing brackets for which a patent application has been filed in Japanese Patent Application No. 2014-169199, for example. The illustrated reinforcing member fixing metal fittings 30 and 40 include fixing plate portions 31 and 41 extending along the reinforcing field edge receiver 10 and the extending direction of the cross reinforcing material 11 from the side edges of the fixing plate portions 31 and 41 (that is, crossing). Cross fixing plate portions 32 and 42 extending along the direction), and locking portions 33 and 43 extending in a bowl shape from the upper edges of the cross fixing plate portions 32 and 42. As shown in FIG. 4C, the reinforcing member fixing brackets 30 and 40 are disposed on the left and right sides of the reinforcing field receiver 10 so that the locking portions 33 and 34 are locked to the cross reinforcing member 11. Then, the fixing plate portions 31 and 41 are screwed to the reinforcing field receiver 10, and the cross fixing plate portions 32 and 42 and the locking portions 33 and 34 are screwed to the cross reinforcing material 11, The cross reinforcing material 11 is connected. A number of screw holes are provided, and can be selected and used as appropriate. At this time, since the height of the reinforcing field receiver 10 is lower than that of the field receiver 2 as described above, there is a gap between the cross reinforcing material 11 and the reinforcing field receiver 10 passed over the field receiver 2. Although there is a gap, the heights of the fixed plate portions 31, 41, 32, and 42 are designed in consideration of the gap. The cross reinforcement member 11 is thus connected to the reinforcing field receiver 10 but is not connected to the field receiver 2 and is merely placed in contact with the upper part of the field receiver 2.
これら補強野縁受け１０と交差補強材１１とは、図５に示す接続金具５０を使用してそれぞれ長さを延長することができる。すなわち、接続金具５０に補強材１０，１１の端部を挿入してビス留めすることで、継ぎ足し延長される。 These reinforcing field edge receivers 10 and cross reinforcing members 11 can be extended in length by using a connection fitting 50 shown in FIG. That is, the ends of the reinforcing members 10 and 11 are inserted into the connection fitting 50 and screwed to extend the connection.
上記の補強野縁受け１０及び交差補強材１１を懸吊する懸吊補強材１２は、図１中下部に拡大して示すように、Ｌ型アングル６０を使用して天井スラブに固定され、垂下する。すなわち、懸吊補強材１２の上端部にＬ型アングル６０の一辺がビス留めされ、これから直角に曲がったＬ型アングル６０の他辺が、コンクリートアンカーを利用して天井スラブに固定される。 The suspension reinforcement member 12 that suspends the reinforcing field edge receiver 10 and the cross reinforcement member 11 is fixed to the ceiling slab using an L-shaped angle 60 as shown in the lower part of FIG. To do. That is, one side of the L-shaped angle 60 is screwed to the upper end portion of the suspension reinforcing member 12, and the other side of the L-shaped angle 60 bent at a right angle is fixed to the ceiling slab using a concrete anchor.
ブレース材１３は、天井スラブから垂下した懸吊補強材１２と補強野縁受け１０及び交差補強材１１との間に斜めに設けられる。 The brace material 13 is provided obliquely between the suspension reinforcing material 12 that hangs down from the ceiling slab, the reinforcing field receiver 10 and the cross reinforcing material 11.
補強野縁受け１０及び交差補強材１１と懸吊補強材１２との接続、補強野縁受け１０及び交差補強材１１とブレース材１３との接続、そして、懸吊補強材１２とブレース材１３との接続には、図６に示すブレースホルダー７０が使用される。このブレースホルダー７０は、例えば特願２０１４−１６９１９９にて特許出願済みのブレースホルダーと同類のものである。ブレースホルダー７０は、Ｈ字形の鋼板を折り曲げることで形成可能であり、補強材１０，１１，１２，１３を両側から挟持する２つのクランプ板部７１を有する。クランプ板部７１には多数のビス孔を開けてあり、このクランプ板部７１の間に補強材１０，１１，１２，１３を所望の相対角度で挟み込んでビス留めすることができる。 Connection between the reinforcing field edge receiver 10 and the cross reinforcing material 11 and the suspension reinforcing material 12, connection between the reinforcing field edge receiver 10 and the cross reinforcing material 11 and the brace material 13, and the suspension reinforcing material 12 and the brace material 13 For the connection, a brace holder 70 shown in FIG. 6 is used. The brace holder 70 is similar to the brace holder for which a patent application has been filed in Japanese Patent Application No. 2014-169199, for example. The brace holder 70 can be formed by bending an H-shaped steel plate, and has two clamp plate portions 71 that sandwich the reinforcing members 10, 11, 12, and 13 from both sides. A number of screw holes are formed in the clamp plate portion 71, and the reinforcing members 10, 11, 12, and 13 can be sandwiched between the clamp plate portions 71 at a desired relative angle and screwed.
筋交いに設置されるブレース材１３には、図７に示す断面ハット形のリインフォース部材８０を取り付け、耐荷重性能を上げて変形し難くしておく。 A brace material 13 installed on the brace is attached with a cross-section hat-shaped reinforcement member 80 shown in FIG. 7 to increase the load bearing performance and prevent deformation.
以上の下地構造は、既存の吊り天井における下地改修方法として施工可能である。すなわち、上記の野縁１、野縁受け２、吊りボルト３を用いて構成されている既存の吊り天井に対して、天井材を野縁１から取り外した後、次のように補強材１０，１１，１２，１３を組み入れることができる。なお、以下の各工程の順番は、施工現場の状況により入替可能である。 The above foundation structure can be constructed as a foundation repair method for an existing suspended ceiling. That is, after the ceiling material is removed from the field edge 1 with respect to the existing suspended ceiling configured using the field edge 1, field edge receiver 2, and suspension bolt 3, the reinforcing material 10, 11, 12, 13 can be incorporated. In addition, the order of the following processes can be changed depending on the situation at the construction site.
まず、既設の野縁受け２の間（好ましくは上記の通りほぼ中央）に、野縁受け２と同じ方向に延伸する補強野縁受け１０を追加し、クリップ２０を使用して野縁１と接続する。次に、既設の吊りボルト３の間（好ましくは上記の通りほぼ中央）に、野縁１と同じ方向に延伸する交差補強材１１を追加し、補強材固定金具３０，４０を使用して補強野縁受け１０と接続する。この交差補強材１１は、既設の野縁受け２とは接続しない。次に、補強野縁受け１０及び交差補強材１１を懸吊補強材１２により懸吊する。この工程において、懸吊補強材１２は、ブレースホルダー７０を使用して補強野縁受け１０及び交差補強材１１に接続して立設し、その上端部をＬ型アングル６０を使用して天井スラブに固定する。そして、補強野縁受け１０及び交差補強材１１と懸吊補強材１２との間に、ブレースホルダー７０を使用してブレース材１３を設ける。 First, a reinforcing field receiver 10 extending in the same direction as the field receiver 2 is added between the existing field receivers 2 (preferably substantially in the center as described above). Connecting. Next, a cross reinforcing material 11 extending in the same direction as the field edge 1 is added between the existing suspension bolts 3 (preferably substantially in the center as described above) and reinforced using the reinforcing material fixing brackets 30 and 40. Connect to the field receiver 10. This cross reinforcing material 11 is not connected to the existing field receiver 2. Next, the reinforcing field edge receiver 10 and the cross reinforcing material 11 are suspended by the suspension reinforcing material 12. In this process, the suspension reinforcing member 12 is erected by connecting to the reinforcing field receiver 10 and the cross reinforcing member 11 using the brace holder 70, and the upper end portion thereof is used for the ceiling slab using the L-shaped angle 60. Secure to. Then, the brace material 13 is provided using the brace holder 70 between the reinforcing field edge receiver 10 and the cross reinforcing material 11 and the suspension reinforcing material 12.
上述の通り、この吊り天井の下地改修方法における補強野縁受け１０には筒形鋼材を使用し、且つこの筒形鋼材は、既設の野縁受け２の高さ以下の高さをもつものとしてあり（上記の例では３８ｍｍに対して３２ｍｍ）、補強野縁受け１０に接続した交差補強材１１は、既設の野縁受け２の上部に当接する状態に施工される。本実施形態では、交差補強材１１、懸吊補強材１２、ブレース材１３も同じ筒形鋼材としいる。ブレース材１３には、図７に示す断面ハット形のリインフォース部材８０を中間位置にビス留めする。 As described above, a cylindrical steel material is used for the reinforcing field receiver 10 in the suspended ceiling foundation repair method, and this cylindrical steel material has a height equal to or less than the height of the existing field receiver 2. Yes (32 mm compared to 38 mm in the above example), the cross reinforcing material 11 connected to the reinforcing field receiver 10 is applied in a state of contacting the upper portion of the existing field receiver 2. In the present embodiment, the cross reinforcing material 11, the suspension reinforcing material 12, and the brace material 13 are also made of the same cylindrical steel material. The brace material 13 is screwed with a cross-section hat-shaped reinforcement member 80 shown in FIG. 7 at an intermediate position.
以上説明した実施形態において、上述したように、交差補強材１１は、補強野縁受け１０とは接続されるが、野縁受け２には接続されず、野縁受け２の上に当接して載っているだけである。この構造によると、地震に対し、交差補強材１１の当接によって野縁受け２の変形は防止される。一方、補強野縁受け１０及び交差補強材１１に係る荷重は、接続されていないことから野縁受け２には伝達されず、したがって、野縁受け２を懸吊する吊りボルト３の負担が増えることはない。逆に、補強材１０，１１，１２，１３による荷重の負担分、吊りボルト３に係る荷重は少なくなるので、野縁受け２や吊りボルト３の変形が抑止され、耐震性能が格段に向上する。 In the embodiment described above, as described above, the cross reinforcing member 11 is connected to the reinforcing field receiver 10 but is not connected to the field receiver 2 and is in contact with the field receiver 2. It is only listed. According to this structure, deformation of the field receiver 2 is prevented by the contact of the cross reinforcing material 11 against an earthquake. On the other hand, the load related to the reinforcing field receiver 10 and the cross reinforcement 11 is not transmitted to the field receiver 2 because it is not connected. Therefore, the load on the suspension bolt 3 that suspends the field receiver 2 increases. There is nothing. On the contrary, since the load applied to the suspension bolt 3 is reduced by the load of the reinforcing members 10, 11, 12, and 13, the deformation of the field receiver 2 and the suspension bolt 3 is suppressed, and the earthquake resistance is remarkably improved. .
上記特徴をもつ実施形態に係る吊り天井下地構造は、互いに交差した補強野縁受け１０と交差補強材１１とが吊りボルト３とは別の懸吊補強材１２によって懸吊されていて、荷重を分担し、さらに懸吊補強材１２と補強野縁受け１０及び交差補強材１１との間にブレース材１３を設けて耐荷重性能を高めてあるから、従来の下地構造に比べて格段に揺れに強く変形し難い下地構造が実現される。加えて、既存の吊り天井において、既設の野縁受け２の間と吊りボルト３の間とに、補強野縁受け１０と交差補強材１１とをそれぞれ追加設置し、これらに懸吊補強材１２及びブレース材１３を固定する方法により、既存の吊り天井に対して、その下地構造を耐震補強することが比較的容易にできる。 In the suspended ceiling foundation structure according to the embodiment having the above-described features, the reinforcing field edge receiver 10 and the intersecting reinforcing material 11 that intersect each other are suspended by a suspension reinforcing material 12 that is different from the suspension bolt 3, and load is applied. In addition, since the brace material 13 is provided between the suspension reinforcement member 12 and the reinforcing field receiver 10 and the cross reinforcement member 11 to improve the load bearing performance, the brace material is greatly shaken compared to the conventional base structure. A ground structure that is strongly resistant to deformation is realized. In addition, in the existing suspended ceiling, a reinforcing field receiver 10 and a cross reinforcing material 11 are additionally installed between the existing field receiver 2 and between the suspension bolts 3, respectively. And by the method of fixing the brace member 13, it is possible to relatively easily seismically strengthen the foundation structure of the existing suspended ceiling.
１ 野縁
２ 野縁受け
３ 吊りボルト
１０ 補強野縁受け
１１ 交差補強材
１２ 懸吊補強材
１３ ブレース材
DESCRIPTION OF SYMBOLS 1 Field edge 2 Field edge receiver 3 Suspension bolt 10 Reinforcement field edge receiver 11 Cross reinforcement material 12 Suspension reinforcement material 13 Brace material
Claims (8)
該野縁と直交する方向に延伸し、前記野縁と接続される野縁受けと、
該野縁受けを懸吊する吊りボルトと、
前記野縁受けの間で前記野縁受けと同じ方向に延伸し、前記野縁と接続される補強野縁受けと、
前記吊りボルトの間で前記野縁と同じ方向に延伸し、前記補強野縁受けと接続される交差補強材と、
前記補強野縁受け及び前記交差補強材を懸吊する懸吊補強材と、
前記補強野縁受けと前記懸吊補強材との間及び前記交差補強材と前記懸吊補強材との間に設けられるブレース材と、
を含む、吊り天井下地構造。 With the edge
A field receiver that extends in a direction perpendicular to the field edge and is connected to the field edge;
A suspension bolt for suspending the field receiver;
A reinforcing field receiver that extends in the same direction as the field receiver between the field receivers and is connected to the field edge;
A cross reinforcing material that extends in the same direction as the field edge between the suspension bolts and is connected to the reinforcement field edge receiver,
A suspension reinforcement for suspending the reinforcement field edge receiver and the cross reinforcement,
A brace material provided between the reinforcing field edge receiver and the suspension reinforcing material and between the cross reinforcing material and the suspension reinforcing material;
Suspended ceiling foundation structure including
前記既設の野縁受けの間に、該野縁受けと同じ方向に延伸する補強野縁受けを追加して前記野縁と接続し、
前記既設の吊りボルトの間に、前記野縁と同じ方向に延伸する交差補強材を追加して前記補強野縁受けと接続し、
前記補強野縁受け及び前記交差補強材を懸吊補強材により懸吊し、
前記補強野縁受け及び前記交差補強材と前記懸吊補強材との間にブレース材を設ける、
ことを含む下地改修方法。 In an existing suspended ceiling configured using a field edge, a field edge receiver that extends perpendicularly to the field edge and is connected to the field edge, and a suspension bolt that suspends the field edge receiver. A groundwork repair method,
Between the existing field receivers, add a reinforcing field receiver extending in the same direction as the field receiver and connect to the field edge,
Between the existing suspension bolts, add a cross reinforcement extending in the same direction as the field edge, and connect to the reinforcement field edge receiver,
Suspend the reinforcing field edge receiver and the cross reinforcing material with a suspension reinforcing material,
A brace material is provided between the reinforcing field edge receiver and the cross reinforcing material and the suspension reinforcing material,
The groundwork repair method including that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016049789A JP6117960B1 (en) | 2016-03-14 | 2016-03-14 | Suspended ceiling foundation structure and repair method of existing suspended ceiling foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016049789A JP6117960B1 (en) | 2016-03-14 | 2016-03-14 | Suspended ceiling foundation structure and repair method of existing suspended ceiling foundation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP6117960B1 true JP6117960B1 (en) | 2017-04-19 |
| JP2017166143A JP2017166143A (en) | 2017-09-21 |
Family
ID=58666876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016049789A Active JP6117960B1 (en) | 2016-03-14 | 2016-03-14 | Suspended ceiling foundation structure and repair method of existing suspended ceiling foundation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6117960B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6999921B2 (en) | 2017-10-25 | 2022-01-19 | 株式会社桐井製作所 | Ceiling base material reinforcement structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014231680A (en) * | 2013-05-28 | 2014-12-11 | 鹿島建設株式会社 | Earthquake-resistant reinforcement structure of suspension ceiling |
| JP2015155632A (en) * | 2014-01-15 | 2015-08-27 | 株式会社佐藤型鋼製作所 | Ceiling backing structure |
| JP2015175156A (en) * | 2014-03-14 | 2015-10-05 | 株式会社佐藤型鋼製作所 | Installation metal fitting for diagonal reinforcement member |
-
2016
- 2016-03-14 JP JP2016049789A patent/JP6117960B1/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014231680A (en) * | 2013-05-28 | 2014-12-11 | 鹿島建設株式会社 | Earthquake-resistant reinforcement structure of suspension ceiling |
| JP2015155632A (en) * | 2014-01-15 | 2015-08-27 | 株式会社佐藤型鋼製作所 | Ceiling backing structure |
| JP2015175156A (en) * | 2014-03-14 | 2015-10-05 | 株式会社佐藤型鋼製作所 | Installation metal fitting for diagonal reinforcement member |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017166143A (en) | 2017-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4871069B2 (en) | Suspended ceiling foundation structure and joint metal fittings | |
| JP6258155B2 (en) | Suspended ceiling structure and its hardware | |
| JP6722997B2 (en) | Ceiling frame suspension structure | |
| JP5746874B2 (en) | Ceiling structure and brace material and ceiling finishing plate fixing bracket | |
| JP5078493B2 (en) | Reinforcing bracket for ceiling and suspended ceiling using the same | |
| JP2007239441A (en) | Earthquake-resistant construction of hung ceiling | |
| JP6253948B2 (en) | Suspended ceiling foundation structure | |
| JP4815180B2 (en) | Reinforcement bracket for suspended ceiling | |
| JP2012202032A (en) | Earthquake-resistant structure of suspended ceiling | |
| JP4963484B2 (en) | Seismic reinforcement brackets and mounting methods | |
| JP6546781B2 (en) | Exterior material mounting structure | |
| JP6117960B1 (en) | Suspended ceiling foundation structure and repair method of existing suspended ceiling foundation | |
| JP2015059410A (en) | Ceiling structure, connecting hardware, and reinforcement structure | |
| KR101642103B1 (en) | Cable Wall System using Reinforced Concrete Fixture | |
| JP2017089378A (en) | A brace holder used for suspended ceiling structure | |
| JP2018115460A (en) | Brace top end connection fittings, brace bottom end connection fittings, and ceiling substrate structure | |
| JP2017190646A (en) | Ceiling reinforcement structure and construction method thereof | |
| JP3171747U (en) | Seismic joint metal fittings at the edge of the ceiling base and the edge receiving edge | |
| JP6117961B1 (en) | Suspended ceiling foundation structure on sloped roof and method of repairing existing suspended ceiling foundation | |
| JP7224037B2 (en) | Ceiling frame suspension structure | |
| JP2019105074A (en) | Ceiling substrate structure | |
| JP2014070470A (en) | Aseismatic ceiling structure | |
| JP2010190000A (en) | Ceiling intertruss bracing system | |
| JP2020007872A (en) | Reinforcement structure of suspension ceiling | |
| KR20210054239A (en) | Anchor bolt fixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TRDD | Decision of grant or rejection written | ||
| A975 | Report on accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A971005 Effective date: 20170314 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20170321 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20170323 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 6117960 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |