JP2021032051A - Scattering prevention device and scattering prevention method - Google Patents
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Abstract
Description
本発明は、建物を解体する場合の破砕物等、建物外部への物の飛散を防止する飛散防止装置及び飛散防止方法に関する。 The present invention relates to a scattering prevention device and a scattering prevention method for preventing scattering of objects such as crushed materials when dismantling a building to the outside of the building.
既存建物を解体する場合、解体時に発生する破砕物等が建物外部に飛散することがある。そこで、建物外部への飛散を抑制するために、既存建物の上方に防護ネットを配置することがある（例えば、特許文献１参照。）。この文献に記載の飛散防止装置は、建物の構造部分に支持され建物の側面に沿って建物よりも上方に突出して配置され、互いに独立して伸縮可能な４体のネット用支柱と、４体のネット用支柱に保持され建物の上面を覆う防護ネットとを備える。 When dismantling an existing building, crushed materials generated during the dismantling may be scattered outside the building. Therefore, in order to suppress scattering to the outside of the building, a protective net may be arranged above the existing building (see, for example, Patent Document 1). The shatterproof device described in this document is supported by a structural part of the building and is arranged so as to project above the building along the side surface of the building, and has four net columns that can expand and contract independently of each other and four It is equipped with a protective net that is held by the net support and covers the upper surface of the building.
ところで、建物は、上層階から順番に解体する場合、上層階の解体が終了すると、防護ネットも下層階に移動させる。この場合、支柱から防護ネットを取り外して、下層階で、再度、ワイヤに取り付けた防護ネットを展開すると、作業負担が大きく、時間も掛かっていた。 By the way, when the building is dismantled in order from the upper floors, the protective net is also moved to the lower floors when the dismantling of the upper floors is completed. In this case, if the protective net was removed from the support column and the protective net attached to the wire was redeployed on the lower floors, the work load was heavy and it took time.
上記課題を解決する飛散防止装置は、建物から外部への物の飛散を防止する飛散防止装置であって、前記建物の周囲に立設された複数の支柱と、前記支柱の上部に配置された第１、第２滑車と、前記複数の支柱のうち対向する支柱の上部の間に、前記第１滑車を介して、架設された第１ワイヤと、前記第１ワイヤに支持されて展開される防護ネットと、前記防護ネットに対して対向する支柱の上部の間で、前記第２滑車を介して、前記防護ネットの下面に当接するように架設された第２ワイヤと、前記第１ワイヤ及び前記第２ワイヤの張力を調整する張力調整装置とを備える。 The anti-scattering device that solves the above-mentioned problems is an anti-scattering device that prevents objects from scattering from the building to the outside, and is arranged on a plurality of columns erected around the building and above the columns. It is developed by being supported by the first wire erected between the first and second pulleys and the upper part of the opposite column among the plurality of columns via the first pulley, and the first wire. A second wire erected between the protective net and the upper part of the support column facing the protective net so as to abut the lower surface of the protective net via the second pulley, the first wire, and the first wire. A tension adjusting device for adjusting the tension of the second wire is provided.
上記課題を解決する飛散防止方法は、建物から外部への物の飛散を防止する飛散防止装置を用いた飛散防止方法であって、前記飛散防止装置は、前記建物の周囲に立設された複数の支柱と、前記支柱の上部に配置された第１、第２滑車と、前記複数の支柱のうち対向する支柱の上部の間に、前記第１滑車を介して、架設された第１ワイヤと、前記第１ワイヤに支持されて展開される防護ネットと、前記防護ネットに対して対向する支柱の上部の間で、前記第２滑車を介して、前記防護ネットの下面に当接するように架設された第２ワイヤと、前記第１ワイヤ及び前記第２ワイヤの張力を調整する張力調整装置とを備え、前記張力調整装置を用いて、前記第１ワイヤ及び前記第２ワイヤを緩めた後、前記支柱を移動させ、すべての支柱を移動させた後、前記張力調整装置を用いて、前記第１ワイヤ及び前記第２ワイヤを緊張させる。 The scattering prevention method for solving the above problems is a scattering prevention method using a scattering prevention device for preventing the scattering of objects from the building to the outside, and the scattering prevention device is a plurality of standing around the building. The first wire erected between the support column, the first and second pulleys arranged on the upper part of the support column, and the upper part of the corresponding support column among the plurality of columns via the first pulley. , Installed between the protective net supported and deployed by the first wire and the upper part of the support column facing the protective net so as to abut on the lower surface of the protective net via the second pulley. A tension adjusting device for adjusting the tension of the first wire and the second wire is provided, and after loosening the first wire and the second wire using the tension adjusting device, the first wire and the second wire are loosened. After moving the columns and moving all the columns, the tension adjusting device is used to tension the first wire and the second wire.
本発明によれば、複数階層の建物の解体時等において、外部への物の飛散を効率的に防止することができる。 According to the present invention, it is possible to efficiently prevent the scattering of objects to the outside when a multi-story building is dismantled.
以下、図１〜図５を用いて、複数階層の建物の解体時に用いる飛散防止装置及び飛散防止方法の一実施形態を説明する。本実施形態の飛散防止装置は、複数の支柱と、対向する支柱に架設される２種類の複数のワイヤと、複数の長方形状の防護ネットとを備える。 Hereinafter, an embodiment of an anti-scattering device and an anti-scattering method used when dismantling a multi-story building will be described with reference to FIGS. 1 to 5. The shatterproof device of the present embodiment includes a plurality of columns, two types of wires erected on opposite columns, and a plurality of rectangular protective nets.
図１は、解体する建物の上部の正面断面図、図２は、建物の要部の上面図であり、図３は、図２の支柱の近傍を拡大した図、図４は、防護ネットとワイヤとの位置関係の説明図である。
図１に示すように、解体する建物５０の周囲には、複数の足場６０が配置される。そして、建物５０と足場６０との間に、複数の支柱１０，２０，３０，４０が配置される。これら支柱１０，２０，３０，４０は、防護ネットＮ１，Ｎ２を支持する。
図４に示すように、防護ネットＮ１，Ｎ２は、上下にずれて配置された同じネットである。
本実施形態では、図２に示すように、略直方体の建物の上部を複数の防護ネットＮ１，Ｎ２で覆う。
FIG. 1 is a front sectional view of the upper part of the building to be demolished, FIG. 2 is a top view of a main part of the building, FIG. 3 is an enlarged view of the vicinity of the support column of FIG. 2, and FIG. 4 is a protective net. It is explanatory drawing of the positional relationship with a wire.
As shown in FIG. 1, a plurality of scaffolds 60 are arranged around the building 50 to be demolished. Then, a plurality of columns 10, 20, 30, and 40 are arranged between the building 50 and the scaffolding 60. These columns 10, 20, 30, and 40 support the protective nets N1 and N2.
As shown in FIG. 4, the protective nets N1 and N2 are the same nets arranged so as to be vertically displaced.
In the present embodiment, as shown in FIG. 2, the upper part of a substantially rectangular parallelepiped building is covered with a plurality of protective nets N1 and N2.
図３に示す支柱１０，２０，３０，４０は、第１ワイヤＷ１ｕ，Ｗ１ｄ及び第２ワイヤＷ２ｕ，Ｗ２ｄの掛け方が異なる。対向する支柱１０（３０）と支柱２０（４０）とは、防護ネットＮ１，Ｎ２に対して線対称となる形状を有する。また、隣接する支柱１０（２０）と支柱３０（４０）は、支柱（１０，２０，３０，４０）の中心軸に対して線対称となる形状を有する。 The columns 10, 20, 30, and 40 shown in FIG. 3 differ in how the first wires W1u and W1d and the second wires W2u and W2d are hung. The strut 10 (30) and the strut 20 (40) facing each other have a shape that is line-symmetric with respect to the protective nets N1 and N2. Further, the adjacent columns 10 (20) and columns 30 (40) have a shape that is axisymmetric with respect to the central axis of the columns (10, 20, 30, 40).
図２に示すように、複数の防護ネットＮ１，Ｎ２を、短手方向に配置することにより、建物の上部を覆う。
この場合、図４に示すように、隣接する防護ネットＮ１，Ｎ２の端部領域が重畳するように、防護ネットＮ１を防護ネットＮ２の上方に配置する。各防護ネットＮ１，Ｎ２の端部にはループが構成され、このループに第１ワイヤＷ１ｕ，Ｗ１ｄを通すことにより、防護ネットＮ１，Ｎ２を第１ワイヤＷ１ｕ，Ｗ１ｄに沿って移動させて展開できる。
As shown in FIG. 2, a plurality of protective nets N1 and N2 are arranged in the lateral direction to cover the upper part of the building.
In this case, as shown in FIG. 4, the protective net N1 is arranged above the protective net N2 so that the end regions of the adjacent protective nets N1 and N2 overlap. A loop is formed at the end of each of the protective nets N1 and N2, and by passing the first wires W1u and W1d through this loop, the protective nets N1 and N2 can be moved and deployed along the first wires W1u and W1d. ..
本実施形態では、図１において、解体する建物の対向する辺の脇に、防護ネットＮ１，Ｎ２を支持させる支柱１０，３０（２０，４０）を、同じ間隔で設置する。図１では、左側に支柱１０，３０、右側に支柱２０，４０を、それぞれ対向するように配置する。 In the present embodiment, in FIG. 1, columns 10, 30 (20, 40) for supporting the protective nets N1 and N2 are installed at the same intervals beside the opposite sides of the building to be demolished. In FIG. 1, the columns 10 and 30 are arranged on the left side and the columns 20 and 40 are arranged on the right side so as to face each other.
本実施形態の支柱１０，２０，３０，４０は、滑車が設けられる位置とワイヤの配置が異なるだけであり、その他の構成は同じである。このため、同じ構成については、同じ符号を付し、詳細な説明は省略する。
そして、支柱１０，２０（３０，４０）間に、第１ワイヤＷ１ｕ，Ｗ１ｄを吊り下げる。各第１ワイヤＷ１ｕ，Ｗ１ｄには、対向する１対の防護ネットＮ１，Ｎ２の端部を展開する。
The columns 10, 20, 30, and 40 of the present embodiment differ only in the position where the pulley is provided and the arrangement of the wires, and have the same other configurations. Therefore, the same components are designated by the same reference numerals, and detailed description thereof will be omitted.
Then, the first wires W1u and W1d are hung between the columns 10, 20 (30, 40). The ends of a pair of protective nets N1 and N2 facing each other are developed on the first wires W1u and W1d.
図５（ａ）は、支柱１０の左側面図、図５（ｂ）は、支柱１０の正面図、図５（ｃ）は、支柱２０の左側面図である。なお、図５（ｂ）において、滑車は図示を省略している。
図５（ａ）に示すように、支柱１０は、柱部１１、取付柱１２、取付部材１５を備える。取付柱１２は、柱部１１の下方で柱部１１に固定され、建物の２階半程度の長さを有する。
5 (a) is a left side view of the support column 10, FIG. 5 (b) is a front view of the support column 10, and FIG. 5 (c) is a left side view of the support column 20. In FIG. 5B, the pulley is not shown.
As shown in FIG. 5A, the support column 10 includes a column portion 11, a mounting column 12, and a mounting member 15. The mounting pillar 12 is fixed to the pillar portion 11 below the pillar portion 11 and has a length of about two and a half floors of the building.
図１に示すように、取付柱１２は、ブラケットＢ１によって建物５０に固定される。なお、本実施形態では、建物５０の２階層（２カ所）で固定するが、図１では１カ所のみを示している。 As shown in FIG. 1, the mounting column 12 is fixed to the building 50 by the bracket B1. In this embodiment, the building 50 is fixed on two floors (two places), but FIG. 1 shows only one place.
図３に示すように、柱部１１は、Ｈ形鋼で構成される。
図５（ａ）に示すように、支柱１０，３０の柱部１１の下部には、第１ワイヤＷ１ｄ、第２ワイヤＷ２ｄの端部を固定するワイヤ固定部１３が形成されている。また、支柱２０、４０の柱部１１の下部には、第１ワイヤＷ１ｕ、第２ワイヤＷ２ｕの端部を固定するワイヤ固定部１３が形成されている。
更に、柱部１１において、このワイヤ固定部１３より上方には、張力調整装置１４が設けられている。この張力調整装置１４は、ワイヤ緊張器やレバーブロック（登録商標）等であって、各ワイヤ（Ｗ１ｄ，Ｗ１ｕ、Ｗ２ｄ，Ｗ２ｕ）の巻込状態を変更することにより、それぞれのワイヤ（Ｗ１ｄ，Ｗ１ｕ、Ｗ２ｄ，Ｗ２ｕ）の張力を調整する。
As shown in FIG. 3, the column portion 11 is made of H-shaped steel.
As shown in FIG. 5A, a wire fixing portion 13 for fixing the ends of the first wire W1d and the second wire W2d is formed in the lower portion of the pillar portion 11 of the columns 10 and 30. Further, a wire fixing portion 13 for fixing the ends of the first wire W1u and the second wire W2u is formed in the lower portion of the pillar portion 11 of the columns 20 and 40.
Further, in the pillar portion 11, a tension adjusting device 14 is provided above the wire fixing portion 13. The tension adjusting device 14 is a wire tensioner, a lever block (registered trademark), or the like, and by changing the winding state of each wire (W1d, W1u, W2d, W2u), each wire (W1d, W1u) , W2d, W2u) are adjusted.
柱部１１の上部には、取付部材１５が設けられる。
図３に示すように、取付部材１５は、取付板部１５ｆと、平行に並んだリブ部１５ａ，１５ｂ，１５ｃ，１５ｄとを備える。取付板部１５ｆは、柱部１１に取り付けられる。リブ部１５ａ，１５ｄは、取付板部１５ｆの端部に設けられる。リブ部１５ｂ，１５ｃは、それぞれリブ部１５ａ，１５ｄの近傍で中心側に配置される。
A mounting member 15 is provided on the upper portion of the pillar portion 11.
As shown in FIG. 3, the mounting member 15 includes a mounting plate portion 15f and rib portions 15a, 15b, 15c, 15d arranged in parallel. The mounting plate portion 15f is attached to the pillar portion 11. The rib portions 15a and 15d are provided at the ends of the mounting plate portion 15f. The rib portions 15b and 15c are arranged on the center side in the vicinity of the rib portions 15a and 15d, respectively.
更に、図５（ｂ）に示すように、リブ部１５ａ〜１５ｄには、シャックル１７，１８がそれぞれ取り付けられている。シャックル１７，１８は、異なる高さで配置される。具体的には、シャックル１７は、リブ部１５ｂ，１５ｄの上部領域に取り付けられ、上側に配置される防護ネットＮ１の第１ワイヤＷ１ｕ及び第２ワイヤＷ２ｕを架け渡す。また、シャックル１８は、リブ部１５ａ，１５ｃの下部領域に取り付けられ、下側に配置される防護ネットＮ２の第１ワイヤＷ１ｄ及び第２ワイヤＷ２ｄを架け渡す。 Further, as shown in FIG. 5B, shackles 17 and 18 are attached to the rib portions 15a to 15d, respectively. The shackles 17 and 18 are arranged at different heights. Specifically, the shackle 17 is attached to the upper region of the rib portions 15b and 15d, and bridges the first wire W1u and the second wire W2u of the protective net N1 arranged on the upper side. Further, the shackle 18 is attached to the lower region of the rib portions 15a and 15c, and bridges the first wire W1d and the second wire W2d of the protective net N2 arranged on the lower side.
図３及び図５（ａ）に示すように、支柱１０，３０のシャックル１７には、第１ワイヤＷ１ｕ及び第２ワイヤＷ２ｕの端部が固定される。支柱１０，３０のシャックル１８には、滑車１８ａ，１８ｂが取り付けられている。滑車１８ａは、第１滑車であって、支柱１０，３０の上部において、ワイヤ固定部１３からの第１ワイヤＷ１ｄを、対向する支柱２０，４０に向かうように支持する。更に、滑車１８ｂは、第２滑車であって、支柱１０，３０の上部において、ワイヤ固定部１３からの第２ワイヤＷ２ｄを、対向して隣接する支柱４０，２０に向かうように支持する。 As shown in FIGS. 3 and 5A, the ends of the first wire W1u and the second wire W2u are fixed to the shackle 17 of the columns 10 and 30. Pulleys 18a and 18b are attached to the shackles 18 of the columns 10 and 30. The pulley 18a is a first pulley, and supports the first wire W1d from the wire fixing portion 13 toward the opposing columns 20 and 40 at the upper part of the columns 10 and 30. Further, the pulley 18b is a second pulley, and supports the second wire W2d from the wire fixing portion 13 on the upper portions of the columns 10 and 30 so as to face the adjacent columns 40 and 20.
図３及び図５（ｃ）に示すように、支柱２０，４０のシャックル１７には、滑車１７ａ，１７ｂが取り付けられている。滑車１７ａは、第１滑車であって、支柱２０，４０の上部において、ワイヤ固定部１３からの第１ワイヤＷ１ｕを、対向する支柱１０，３０に向かうように支持する。更に、滑車１７ｂは、第２滑車であって、支柱２０，４０の上部において、ワイヤ固定部１３からの第２ワイヤＷ２ｕを、対向して隣接する支柱１０，３０に向かうように支持する。 As shown in FIGS. 3 and 5 (c), pulleys 17a and 17b are attached to the shackles 17 of the columns 20 and 40. The pulley 17a is a first pulley, and supports the first wire W1u from the wire fixing portion 13 toward the opposing columns 10 and 30 at the upper portions of the columns 20 and 40. Further, the pulley 17b is a second pulley, and supports the second wire W2u from the wire fixing portion 13 on the upper portions of the columns 20 and 40 so as to face the adjacent columns 10 and 30.
図２に示すように、２本の第２ワイヤＷ２ｕ（Ｗ２ｄ）は、防護ネットＮ１（Ｎ２）の下方で交差されるように、支柱１０，２０，３０，４０に取り付けられる。具体的には、第２ワイヤＷ２ｕ（Ｗ２ｄ）の一端を支柱１０，２０，３０，４０に固定し、他端を、対向した隣接する支柱（４０，３０，２０，１０）に固定する。 As shown in FIG. 2, the two second wires W2u (W2d) are attached to the columns 10, 20, 30, 40 so as to intersect below the protective net N1 (N2). Specifically, one end of the second wire W2u (W2d) is fixed to the columns 10, 20, 30, 40, and the other end is fixed to the adjacent adjacent columns (40, 30, 20, 10).
（飛散防止装置の設置方法）
次に、以上のように構成した飛散防止装置の設置方法について説明する。
図２に示すように、建物の周囲において、建物５０と足場６０との間に支柱１０，２０，３０，４０を対向するように配置する。この場合、支柱１０，２０，３０，４０の取付柱１２を、ブラケットＢ１を介して、建物の最上階及びその直下階に固定する。そして、支柱１０，３０のシャックル１７に取り付けた第１ワイヤＷ１ｕを、緩めた状態で、支柱２０，４０の滑車１７ａ及び張力調整装置１４を介して、支柱２０，４０のワイヤ固定部１３に固定する。この場合、防護ネットＮ１を取り付けた複数の第１ワイヤＷ１ｕを、順次、配置する。
(How to install the shatterproof device)
Next, a method of installing the shatterproof device configured as described above will be described.
As shown in FIG. 2, the columns 10, 20, 30, and 40 are arranged so as to face each other between the building 50 and the scaffolding 60 around the building. In this case, the mounting columns 12 of the columns 10, 20, 30, and 40 are fixed to the top floor of the building and the floor immediately below it via the bracket B1. Then, the first wire W1u attached to the shackles 17 of the columns 10 and 30 is fixed to the wire fixing portions 13 of the columns 20 and 40 via the pulleys 17a of the columns 20 and 40 and the tension adjusting device 14 in a loosened state. To do. In this case, a plurality of first wires W1u to which the protective net N1 is attached are sequentially arranged.
そして、支柱１０，２０，３０，４０のシャックル１７に端部を取り付けた複数の第２ワイヤＷ２ｕを、緩めた状態で、支柱２０，４０の滑車１７ｂ及び張力調整装置１４を介して、順次、ワイヤ固定部１３に固定する。
その後、支柱２０，４０の張力調整装置１４を操作して、第１ワイヤＷ１ｕを緊張させる。更に、第１ワイヤＷ１ｕに沿って防護ネットＮ１を展開する。次に、支柱２０，４０の張力調整装置１４を操作して、第２ワイヤＷ２ｕを緊張させる。これにより、交差した第２ワイヤＷ２ｕが、防護ネットＮ１の中心付近に当接して、防護ネットＮ１を押し上げる。
Then, in a loosened state, the plurality of second wires W2u whose ends are attached to the shackles 17 of the columns 10, 20, 30 and 40 are sequentially passed through the pulleys 17b of the columns 20 and 40 and the tension adjusting device 14. It is fixed to the wire fixing portion 13.
After that, the tension adjusting device 14 of the columns 20 and 40 is operated to tension the first wire W1u. Further, the protective net N1 is deployed along the first wire W1u. Next, the tension adjusting device 14 of the columns 20 and 40 is operated to tension the second wire W2u. As a result, the crossed second wires W2u come into contact with the vicinity of the center of the protective net N1 and push up the protective net N1.
次に、上述した上側の第１ワイヤＷ１ｕ、第２ワイヤＷ２ｕ及び防護ネットＮ１と同様にして、下側の第１ワイヤＷ１ｄ、第２ワイヤＷ２ｄ及び防護ネットＮ２を取り付ける。これにより、第１ワイヤＷ１ｄに沿って防護ネットＮ２が展開され、交差した第２ワイヤＷ２ｄが、防護ネットＮ２の中心付近に当接して、防護ネットＮ２を押し上げる。この場合、防護ネットＮ１，Ｎ２の端部は重なって配置されるので、隙間なく防護ネットＮ１，Ｎ２を設けることができる。
この状態で、防護ネットＮ１，Ｎ２の下で、重機（ショベルカーやクレーン等）を動作して建物５０の解体をする。
Next, the lower first wire W1d, the second wire W2d, and the protective net N2 are attached in the same manner as the upper first wire W1u, the second wire W2u, and the protective net N1 described above. As a result, the protective net N2 is deployed along the first wire W1d, and the intersecting second wires W2d come into contact with the vicinity of the center of the protective net N2 and push up the protective net N2. In this case, since the ends of the protective nets N1 and N2 are arranged so as to overlap each other, the protective nets N1 and N2 can be provided without a gap.
In this state, under the protective nets N1 and N2, heavy machinery (excavator car, crane, etc.) is operated to dismantle the building 50.
そして、建物５０の上部の解体をして、重機を下の階に降ろした後、飛散防止装置の盛替えを行なう。
この場合、支柱１０，２０，３０，４０の張力調整装置１４を操作して、第２ワイヤＷ２ｕ，Ｗ２ｄ、第１ワイヤＷ１ｕ，Ｗ１ｄを緩める。次に、１本ずつ、支柱１０，２０，３０，４０の取付柱１２の固定を解除する。そして、第１ワイヤＷ１ｕ，Ｗ１ｄに沿って展開している防護ネットＮ１，Ｎ２を、支柱（１０，２０，３０，４０）側に寄せて隙間を生成する。この隙間から、防護ネットＮ１，Ｎ２の下にある１台のクレーンのブームを突出させ、このクレーンにより、支柱１０，２０，３０，４０のうちの１つを吊って降下させ、１階下の階に、取付柱１２を固定する。そして、すべての支柱１０，２０，３０，４０について、取付柱１２の固定解除から取付柱１２の１階下の階への取付までの一連の動作を、順次、繰り返す。
Then, after dismantling the upper part of the building 50 and lowering the heavy machinery to the lower floor, the shatterproof device is replaced.
In this case, the tension adjusting devices 14 of the columns 10, 20, 30, and 40 are operated to loosen the second wires W2u and W2d and the first wires W1u and W1d. Next, the mounting columns 12 of the columns 10, 20, 30, and 40 are released one by one. Then, the protective nets N1 and N2 developed along the first wires W1u and W1d are brought closer to the support columns (10, 20, 30, 40) to generate a gap. From this gap, the boom of one crane under the protective nets N1 and N2 is projected, and one of the columns 10, 20, 30, and 40 is hung and lowered by this crane, and the floor is one floor down. The mounting column 12 is fixed to. Then, for all the columns 10, 20, 30, and 40, a series of operations from the release of the attachment column 12 to the attachment of the attachment column 12 to the floor one floor below is sequentially repeated.
すべての支柱１０，２０，３０，４０を１階下の階に固定した後、支柱１０，２０，３０，４０の張力調整装置１４を操作して、第１ワイヤＷ１ｕ，Ｗ１ｄを緊張させて防護ネットＮ１，Ｎ２を展開させ、その後、第２ワイヤＷ２ｕ，Ｗ２ｄを緊張させる。これにより、第２ワイヤＷ２ｕ，Ｗ２ｄが、再び防護ネットＮ１，Ｎ２を押し上げる。その後、この階層での解体作業を行なう。 After fixing all the columns 10, 20, 30 and 40 to the floor one floor below, the tension adjusting device 14 of the columns 10, 20, 30 and 40 is operated to tension the first wires W1u and W1d to protect the protective net. N1 and N2 are unfolded, and then the second wires W2u and W2d are strained. As a result, the second wires W2u and W2d push up the protective nets N1 and N2 again. After that, dismantling work is performed in this hierarchy.
（作用）
上記構成の飛散防止装置によれば、第２ワイヤＷ２ｕ，Ｗ２ｄを防護ネットＮ１，Ｎ２の下面に当接するように配置する。第２ワイヤＷ２ｕ，Ｗ２ｄによって防護ネットＮ１，Ｎ２の下面が押し上げられることにより、防護ネットＮ１，Ｎ２の垂れを抑制することができる。
(Action)
According to the shatterproof device having the above configuration, the second wires W2u and W2d are arranged so as to be in contact with the lower surfaces of the protective nets N1 and N2. By pushing up the lower surfaces of the protective nets N1 and N2 by the second wires W2u and W2d, it is possible to suppress the sagging of the protective nets N1 and N2.
更に、上記構成の飛散防止方法によれば、第１ワイヤＷ１ｕ，Ｗ１ｄ及び第２ワイヤＷ２ｕ，Ｗ２ｄを緩めることにより、柱部１１から防護ネットＮ１，Ｎ２を取り外すことなく、上層階から下層階に飛散防止装置を移動させることができる。 Further, according to the shatterproof method having the above configuration, by loosening the first wires W1u and W1d and the second wires W2u and W2d, the protective nets N1 and N2 are not removed from the pillar portion 11, and the protective nets N1 and N2 are moved from the upper floor to the lower floor. The shatterproof device can be moved.
本実施形態によれば、以下のような効果を得ることができる。
（１）本実施形態の飛散防止装置は、防護ネットＮ１，Ｎ２の下面に当接する第２ワイヤＷ２ｕ，Ｗ２ｄを備えるので、第２ワイヤＷ２ｕ，Ｗ２ｄが防護ネットＮ１，Ｎ２を下方から押し上げる。これにより、防護ネットＮ１，Ｎ２の垂れを抑制して、防護ネットＮ１，Ｎ２内の空間を大きく区画して、効率的に解体作業を行なうことができる。
According to this embodiment, the following effects can be obtained.
(1) Since the shatterproof device of the present embodiment includes the second wires W2u and W2d that come into contact with the lower surfaces of the protective nets N1 and N2, the second wires W2u and W2d push up the protective nets N1 and N2 from below. As a result, the sagging of the protective nets N1 and N2 can be suppressed, the space inside the protective nets N1 and N2 can be largely partitioned, and the dismantling work can be performed efficiently.
更に、ワイヤ（Ｗ１ｕ，Ｗ１ｄ，Ｗ２ｕ，Ｗ２ｄ）の張力を調整する張力調整装置１４を、支柱１０，２０，３０，４０に設ける。これにより、ワイヤ（Ｗ１ｕ，Ｗ１ｄ，Ｗ２ｕ，Ｗ２ｄ）を緩めた後、支柱１０，２０，３０，４０を降下させ、下層階で固定して、ワイヤ（Ｗ１ｕ，Ｗ１ｄ，Ｗ２ｕ，Ｗ２ｄ）を緊張させる。これにより、防護ネットＮ１，Ｎ２を取り外すことなく、上層階から下層階に移動させることができる。 Further, tension adjusting devices 14 for adjusting the tension of the wires (W1u, W1d, W2u, W2d) are provided on the columns 10, 20, 30, and 40. As a result, after loosening the wires (W1u, W1d, W2u, W2d), the columns 10, 20, 30, 40 are lowered and fixed on the lower floors to tension the wires (W1u, W1d, W2u, W2d). .. As a result, the protective nets N1 and N2 can be moved from the upper floor to the lower floor without removing them.
（２）本実施形態では、２本の第２ワイヤＷ２ｕ（Ｗ２ｄ）が交差するように、第２ワイヤＷ２ｕ（Ｗ２ｄ）を支柱１０，２０，３０，４０に取り付ける。これにより、防護ネットＮ１（Ｎ２）の中心近傍に、第２ワイヤＷ２ｕ（Ｗ２ｄ）の交差点が位置するので、防護ネットＮ１（Ｎ２）を押し上げて、防護ネットＮ１（Ｎ２）の垂れを抑制することができる。 (2) In the present embodiment, the second wire W2u (W2d) is attached to the columns 10, 20, 30, 40 so that the two second wires W2u (W2d) intersect. As a result, since the intersection of the second wire W2u (W2d) is located near the center of the protective net N1 (N2), the protective net N1 (N2) is pushed up to suppress the sagging of the protective net N1 (N2). Can be done.
（３）本実施形態では、支柱１０，３０のシャックル１８に、下側に配置する防護ネットＮ２に関連するワイヤ（Ｗ１ｄ，Ｗ２ｄ）を係止させる滑車１８ａ，１８ｂを設け、支柱２０，４０のシャックル１７に、上側に配置する防護ネットＮ１に関連するワイヤ（Ｗ１ｕ，Ｗ２ｕ）を係止する滑車１７ａ，１７ｂを設ける。これにより、シャックル１７，１８に設けた滑車１７ａ，１７ｂ，１８ａ，１８ｂの干渉を抑制できる。 (3) In the present embodiment, pulleys 18a and 18b for locking the wires (W1d and W2d) related to the protective net N2 arranged on the lower side are provided on the shackle 18 of the columns 10 and 30, and the columns 20 and 40 are provided with pulleys 18a and 18b. The shackle 17 is provided with pulleys 17a and 17b for locking the wires (W1u, W2u) related to the protective net N1 arranged on the upper side. As a result, the interference of the pulleys 17a, 17b, 18a, 18b provided on the shackles 17 and 18 can be suppressed.
（４）本実施形態では、支柱１０，２０，３０，４０の取付部材１５は、異なる防護ネットＮ１，Ｎ２を保持する２本の第１ワイヤＷ１ｕ，Ｗ１ｄを保持し、防護ネットＮ１，Ｎ２が一部重なるように第１ワイヤＷ１ｕ，Ｗ１ｄを配置する。これにより、隣接する防護ネットＮ１，Ｎ２を隙間なく取り付けることができる。 (4) In the present embodiment, the mounting members 15 of the columns 10, 20, 30, and 40 hold two first wires W1u and W1d that hold different protective nets N1 and N2, and the protective nets N1 and N2 The first wires W1u and W1d are arranged so as to partially overlap each other. Thereby, the adjacent protective nets N1 and N2 can be attached without a gap.
（５）本実施形態では、ワイヤ（Ｗ１ｕ，Ｗ１ｄ，Ｗ２ｕ，Ｗ２ｄ）は、滑車１７ａ，１７ｂ，１８ａ，１８ｂ及びシャックル１７，１８によって、支柱１０，２０，３０，４０の上部に保持される。これにより、ワイヤ（Ｗ１ｕ，Ｗ１ｄ，Ｗ２ｕ，Ｗ２ｄ）を緩ませても、滑車１７ａ，１７ｂ，１８ａ，１８ｂにワイヤ（Ｗ１ｕ，Ｗ１ｄ，Ｗ２ｕ，Ｗ２ｄ）が保持されるので、ワイヤ（Ｗ１ｕ，Ｗ１ｄ，Ｗ２ｕ，Ｗ２ｄ）の緩み時の垂れ下がりを抑制することができる。 (5) In the present embodiment, the wires (W1u, W1d, W2u, W2d) are held on the upper portions of the columns 10, 20, 30, 40 by the pulleys 17a, 17b, 18a, 18b and the shackles 17, 18. As a result, even if the wires (W1u, W1d, W2u, W2d) are loosened, the wires (W1u, W1d, W2u, W2d) are held by the pulleys 17a, 17b, 18a, 18b, so that the wires (W1u, W1d, W1d, W2u, W2d) can be suppressed from hanging when loosened.
本実施形態は、以下のように変更して実施することができる。本実施形態及び以下の変更例は、技術的に矛盾しない範囲で互いに組み合わせて実施することができる。
・上記実施形態では、支柱１０，２０，３０，４０に取り付けた滑車１７ａ，１７ｂ，１８ａ，１８ｂに、ワイヤ（Ｗ１ｕ，Ｗ１ｄ，Ｗ２ｕ，Ｗ２ｄ）を取り付けた。柱部１１の上部にワイヤ（Ｗ１ｕ，Ｗ１ｄ，Ｗ２ｕ，Ｗ２ｄ）を保持する保持部材は、滑車１７ａ，１７ｂ，１８ａ，１８ｂに限らず、例えば、ワイヤを挿通するリング形状の部材等であってもよい。
This embodiment can be modified and implemented as follows. The present embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
-In the above embodiment, wires (W1u, W1d, W2u, W2d) are attached to the pulleys 17a, 17b, 18a, 18b attached to the columns 10, 20, 30, 40. The holding member for holding the wire (W1u, W1d, W2u, W2d) on the upper portion of the pillar portion 11 is not limited to the pulleys 17a, 17b, 18a, 18b, and may be, for example, a ring-shaped member through which the wire is inserted. Good.
・上記実施形態では、２つの第２ワイヤＷ２ｕ，Ｗ２ｄが、防護ネットＮ１，Ｎ２の中心近傍で交差するように、第２ワイヤＷ２ｕ，Ｗ２ｄを支柱１０，２０，３０，４０に取り付けた。第２ワイヤＷ２ｕ，Ｗ２ｄの配置は、これに限定されず、例えば、１つの第２ワイヤＷ２ｕ，Ｗ２ｄを、防護ネットＮ１，Ｎ２の下方に当接させてもよい。 -In the above embodiment, the second wires W2u and W2d are attached to the columns 10, 20, 30 and 40 so that the two second wires W2u and W2d intersect in the vicinity of the center of the protective nets N1 and N2. The arrangement of the second wires W2u and W2d is not limited to this, and for example, one second wire W2u and W2d may be brought into contact with the lower side of the protective nets N1 and N2.
・上記実施形態の各支柱１０，２０，３０，４０は、ワイヤ（Ｗ１ｕ，Ｗ１ｄ，Ｗ２ｕ，Ｗ２ｄ）を取り付けるリブ部１５ａ〜１５ｄを設けた取付部材１５を取り付けた柱部１１を備える。各支柱１０，２０，３０，４０の構成は、ワイヤ（Ｗ１ｕ，Ｗ１ｄ，Ｗ２ｕ，Ｗ２ｄ）が柱部１１の上部に係止できれば、リブ部１５ａ〜１５ｄを設けた取付部材１５を備える構成に限定されない。例えば、第１ワイヤＷ１ｕ，Ｗ１ｄを取り付ける取付部材と、第２ワイヤＷ２ｕ，Ｗ２ｄを取り付ける取付部材とを分けて支柱１０，２０，３０，４０に設けてもよい。 Each of the columns 10, 20, 30, and 40 of the above embodiment includes a column 11 to which the attachment member 15 provided with the ribs 15a to 15d for attaching the wires (W1u, W1d, W2u, W2d) is attached. The configuration of each of the columns 10, 20, 30, and 40 is limited to a configuration including a mounting member 15 provided with rib portions 15a to 15d if the wires (W1u, W1d, W2u, W2d) can be locked to the upper portion of the column portion 11. Not done. For example, the mounting member for mounting the first wires W1u and W1d and the mounting member for mounting the second wires W2u and W2d may be separately provided on the columns 10, 20, 30 and 40.
・上記実施形態では、図２の右側に並んだ支柱２０，４０の取付部材１５のシャックル１７には、滑車１７ａ，１７ｂを設け、図２の左側に並んだ支柱１０，３０の取付部材のシャックル１８には、滑車１８ａ，１８ｂを設けた。取付部材１５における滑車１７ａ，１７ｂ，１８ａ，１８ｂの取付の配置は、これらに限られず、防護ネットＮ１，Ｎ２の配置状況等に応じて変更してもよい。 In the above embodiment, pulleys 17a and 17b are provided on the shackles 17 of the mounting members 15 of the columns 20 and 40 arranged on the right side of FIG. 2, and the shackles of the mounting members of the columns 10 and 30 arranged on the left side of FIG. 2 are provided. Pulleys 18a and 18b were provided in 18. The mounting arrangement of the pulleys 17a, 17b, 18a, 18b on the mounting member 15 is not limited to these, and may be changed according to the placement status of the protective nets N1 and N2.
次に、上記実施形態及び別例から把握できる技術的思想について、それらの効果とともに以下に追記する。
（ａ）各支柱の上部には、取付部材が設けられており、
前記取付部材は、２本の前記第１ワイヤを保持し、
前記２本の第１ワイヤは、異なる防護ネットを保持し、
前記取付部材には、前記異なる防護ネットの一部が重なるように、前記第１ワイヤを取り付けたことを特徴とする請求項１又は２に記載の飛散防止装置。
従って、この（ａ）に記載の発明によれば、隣接する防護ネットを隙間なく配置することができる。
Next, the technical ideas that can be grasped from the above-described embodiment and other examples will be added below together with their effects.
(A) A mounting member is provided on the upper part of each column.
The mounting member holds two of the first wires.
The two first wires hold different protective nets and
The shatterproof device according to claim 1 or 2, wherein the first wire is attached to the attachment member so that a part of the different protective nets overlaps with the attachment member.
Therefore, according to the invention described in (a), adjacent protective nets can be arranged without gaps.
Ｂ１…ブラケット、Ｎ１，Ｎ２…防護ネット、Ｗ１ｕ，Ｗ１ｄ…第１ワイヤ、Ｗ２ｕ，Ｗ２ｄ…第２ワイヤ、１０，２０，３０，４０…支柱、１１…柱部、１２…取付柱、１３…ワイヤ固定部、１４…張力調整装置、１５…取付部材、１５ａ，１５ｂ，１５ｃ，１５ｄ…リブ部、１５ｆ…取付板部、１７，１８…シャックル、１７ａ，１８ａ…第１滑車としての滑車、１７ｂ，１８ｂ…第２滑車としての滑車、５０…建物、６０…足場。 B1 ... Bracket, N1, N2 ... Protective net, W1u, W1d ... 1st wire, W2u, W2d ... 2nd wire, 10, 20, 30, 40 ... Support, 11 ... Pillar, 12 ... Mounting pillar, 13 ... Wire Fixed part, 14 ... Tension adjusting device, 15 ... Mounting member, 15a, 15b, 15c, 15d ... Rib part, 15f ... Mounting plate part, 17, 18 ... Shackle, 17a, 18a ... Pulley as first pulley, 17b, 18b ... Pulley as the second pulley, 50 ... Building, 60 ... Scaffold.
Claims (3)
前記建物の周囲に立設された複数の支柱と、
前記支柱の上部に配置された第１、第２滑車と、
前記複数の支柱のうち対向する支柱の上部の間に、前記第１滑車を介して、架設された第１ワイヤと、
前記第１ワイヤに支持されて展開される防護ネットと、
前記防護ネットに対して対向する支柱の上部の間で、前記第２滑車を介して、前記防護ネットの下面に当接するように架設された第２ワイヤと、
前記第１ワイヤ及び前記第２ワイヤの張力を調整する張力調整装置とを備えたことを特徴とする飛散防止装置。 An anti-scattering device that prevents objects from scattering from the building to the outside.
With a plurality of columns erected around the building,
The first and second pulleys arranged on the upper part of the support,
A first wire erected between the upper portions of the opposing columns among the plurality of columns via the first pulley,
A protective net supported by the first wire and deployed,
A second wire erected between the upper parts of the columns facing the protective net and abutting the lower surface of the protective net via the second pulley.
A shatterproof device including a tension adjusting device for adjusting the tension of the first wire and the second wire.
前記飛散防止装置は、
前記建物の周囲に立設された複数の支柱と、
前記支柱の上部に配置された第１、第２滑車と、
前記複数の支柱のうち対向する支柱の上部の間に、前記第１滑車を介して、架設された第１ワイヤと、
前記第１ワイヤに支持されて展開される防護ネットと、
前記防護ネットに対して対向する支柱の上部の間で、前記第２滑車を介して、前記防護ネットの下面に当接するように架設された第２ワイヤと、
前記第１ワイヤ及び前記第２ワイヤの張力を調整する張力調整装置とを備え、
前記張力調整装置を用いて、前記第１ワイヤ及び前記第２ワイヤを緩めた後、前記支柱を移動させ、
すべての支柱を移動させた後、前記張力調整装置を用いて、前記第１ワイヤ及び前記第２ワイヤを緊張させることを特徴とする飛散防止方法。 It is a scattering prevention method that uses a scattering prevention device that prevents objects from scattering from the building to the outside.
The shatterproof device is
With a plurality of columns erected around the building,
The first and second pulleys arranged on the upper part of the support,
A first wire erected between the upper portions of the opposing columns among the plurality of columns via the first pulley,
A protective net supported by the first wire and deployed,
A second wire erected between the upper parts of the columns facing the protective net and abutting the lower surface of the protective net via the second pulley.
A tension adjusting device for adjusting the tension of the first wire and the second wire is provided.
After loosening the first wire and the second wire using the tension adjusting device, the support column is moved.
A method for preventing scattering, which comprises moving all the columns and then tensioning the first wire and the second wire by using the tension adjusting device.
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| JPS63135668U (en) * | 1987-02-27 | 1988-09-06 | ||
| JP2011017230A (en) * | 2009-07-10 | 2011-01-27 | Kajima Corp | Scattering prevention device |
| JP2012225036A (en) * | 2011-04-19 | 2012-11-15 | Raiteku:Kk | Guard fence |
| JP2014001523A (en) * | 2012-06-15 | 2014-01-09 | Raiteku:Kk | Guard fence |
| JP2015074956A (en) * | 2013-10-11 | 2015-04-20 | 三同建設株式会社 | Scattering prevention device, and method for demolishing building using the same |
| JP2019127809A (en) * | 2018-01-26 | 2019-08-01 | 佐藤工業株式会社 | Rubble scattering prevention structure and building demolition method |
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| JPS63135668U (en) * | 1987-02-27 | 1988-09-06 | ||
| JP2011017230A (en) * | 2009-07-10 | 2011-01-27 | Kajima Corp | Scattering prevention device |
| JP2012225036A (en) * | 2011-04-19 | 2012-11-15 | Raiteku:Kk | Guard fence |
| JP2014001523A (en) * | 2012-06-15 | 2014-01-09 | Raiteku:Kk | Guard fence |
| JP2015074956A (en) * | 2013-10-11 | 2015-04-20 | 三同建設株式会社 | Scattering prevention device, and method for demolishing building using the same |
| JP2019127809A (en) * | 2018-01-26 | 2019-08-01 | 佐藤工業株式会社 | Rubble scattering prevention structure and building demolition method |
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| WO2021191727A1 (en) | 2020-03-23 | 2021-09-30 | Ricoh Company, Ltd. | Image processing apparatus and image processing method |
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