JP2011052512A - Roof repair construction method and structure - Google Patents

Roof repair construction method and structure Download PDF

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JP2011052512A
JP2011052512A JP2009205165A JP2009205165A JP2011052512A JP 2011052512 A JP2011052512 A JP 2011052512A JP 2009205165 A JP2009205165 A JP 2009205165A JP 2009205165 A JP2009205165 A JP 2009205165A JP 2011052512 A JP2011052512 A JP 2011052512A
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roof
new
existing
new roof
temporary
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JP5701490B2 (en
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Minoru Aoki
実 青木
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Takenaka Komuten Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/10Photovoltaic [PV]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roof repair construction method and a structure, which eliminates construction of a temporary roof on an existing roof. <P>SOLUTION: A new roof 20 constructed on a temporary working platform 18 is arranged on an upper side of the existing roof 16 at first in the repair construction method for the existing roof 16 of a building 10. Then, the existing roof 16 below the new roof 20 is demolished after arranging the new roof 20. The temporary roof is not required to be constructed separately on the existing roof 16, since a demolishing field for the existing roof 16 is protected by the new roof 20, in this manner, by demolishing the existing roof 16 after arranging the new roof 20. An expense of a temporary member is reduced and a term of works is shortened, when repairing the existing roof 16. Furthermore, the demolishing work for the existing roof 16 is hardly affected by a weather. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、屋根改修工法及び構造物に関する。   The present invention relates to a roof repair method and a structure.

特許文献1の構造物の改築施工法は、既設の構造物の周囲に基礎を設け、既設の構造物を覆って新しい構造物を構築すると共に、新しい構造物の内部で既設の構造物を解体している。   In the method for reconstructing a structure of Patent Document 1, a foundation is provided around an existing structure, a new structure is constructed by covering the existing structure, and the existing structure is dismantled inside the new structure. is doing.

しかし、特許文献1の改築施工法は、既設の構造物全体を解体しており、既設の構造物の躯体を残しつつ屋根のみを改築する場合には適用できない。   However, the remodeling method disclosed in Patent Document 1 is not applicable to the case where the entire existing structure is dismantled and only the roof is remodeled while leaving the frame of the existing structure.

特許文献2の屋根のトラベリング工法は、屋根の構築場所の両端に仮設構台を設け、それぞれの仮設構台で屋根を構築している。そして、構築された各屋根を互いに反力をとりながら中央(構築場所)へ向けて移動させると共に、中央で仮設のテントルーフを設けて各屋根を連結している。なお、トラベリング工法とは、大空間構造物の大架構組立てにおいて、様々な制約によりクレーンが架構の全面をカバーできない場合などに、架構をいくつかのブロックに分割して組立てながら順次移動していく工法である。   In the roof traveling construction method of Patent Document 2, temporary gantry is provided at both ends of the roof construction site, and the roof is constructed by each temporary gantry. Then, the constructed roofs are moved toward the center (construction place) while taking reaction forces, and a temporary tent roof is provided at the center to connect the roofs. The traveling method is to move the frame while it is being divided into several blocks and assembled when the crane cannot cover the entire frame due to various restrictions when assembling the large frame structure. It is a construction method.

しかし、特許文献2の屋根のトラベリング工法は、既設の屋根を解体する場合の新設屋根の構築工法については開示されていない。   However, the roof traveling construction method of Patent Document 2 does not disclose a construction method for constructing a new roof when dismantling an existing roof.

特許第2583462号公報Japanese Patent No. 2583462 特開平8−13620号公報JP-A-8-13620

本発明は、既設屋根上での仮設の屋根の構築が不要となる屋根改修工法及び構造物を得ることを目的とする。   An object of the present invention is to obtain a roof repair method and a structure that do not require the construction of a temporary roof on an existing roof.

本発明の請求項1に係る屋根改修工法は、既設屋根の上方を覆う新設屋根を配置する新設屋根配置工程と、前記新設屋根が配置された後で前記既設屋根を解体する既設屋根解体工程と、を有する。この構成によれば、新設屋根を配置した後で既設屋根を解体することにより既設屋根の解体現場が新設屋根で保護されるので、既設屋根上に仮設の屋根を構築する必要が無くなる。このため、屋根改修時の仮設部材の費用を低減でき、工期も短縮できる。さらに、既設屋根の解体作業が天候の影響を受けにくくなる。   The roof renovation method according to claim 1 of the present invention includes a new roof placement step of placing a new roof covering the upper side of the existing roof, and an existing roof disassembly step of disassembling the existing roof after the new roof is placed. Have. According to this configuration, since the existing roof dismantling site is protected by the new roof by disassembling the existing roof after the new roof is arranged, it is not necessary to construct a temporary roof on the existing roof. For this reason, the cost of the temporary member at the time of roof repair can be reduced, and a construction period can also be shortened. Furthermore, the dismantling work for the existing roof is less susceptible to the influence of the weather.

本発明の請求項2に係る屋根改修工法は、前記新設屋根配置工程は、前記新設屋根を構築する新設屋根構築工程と、前記新設屋根を構築した場所から前記新設屋根を配置する配置場所までの前記新設屋根の移動路を設置する移動路設置工程と、構築された前記新設屋根を前記移動路を通じて移動させ前記配置場所に配置する新設屋根移動配置工程と、前記新設屋根を前記配置場所に設置する新設屋根設置工程と、を有する。   In the roof refurbishment method according to claim 2 of the present invention, the new roof placement step includes a new roof construction step for constructing the new roof, and a location from where the new roof is constructed to an arrangement location for arranging the new roof. A moving path installation step of installing the moving path of the new roof, a new roof moving arrangement step of moving the constructed new roof through the moving path and arranging the new roof at the arrangement place, and installing the new roof at the arrangement place And a new roof installation process.

上記構成によれば、新設屋根を構築し、構築された新設屋根を移動路を通じて設置現場の各配置場所に移動させてから設置するので、揚重機が使用できない現場でも新設屋根を設置することができる。また、例えば、新築屋根の設置現場と異なる場所にある仮設構台で新設屋根を構築することで、昼間に作業を行うことができ、工期短縮が可能となる。   According to the above configuration, since a new roof is constructed and the constructed new roof is moved to each location on the installation site through the moving path, the new roof can be installed even on a site where a lifting machine cannot be used. it can. In addition, for example, by constructing a new roof with a temporary gantry at a location different from the installation site of the new roof, work can be performed in the daytime, and the work period can be shortened.

本発明の請求項3に係る屋根改修工法は、前記新設屋根は、前記移動路上で移動方向を変えながら移動される。この構成によれば、仮設構台から設置現場まで一直線に移動路を設けることができない場合でも、新設屋根を設置現場まで移動することができる。   In the roof renovation method according to claim 3 of the present invention, the new roof is moved while changing the moving direction on the moving path. According to this configuration, even when the moving path cannot be provided in a straight line from the temporary gantry to the installation site, the new roof can be moved to the installation site.

本発明の請求項4に係る屋根改修工法は、前記移動路上に太陽エネルギーを利用する機能部材を設置する機能部材設置工程を有する。この構成によれば、構造物に太陽光パネル等の太陽エネルギーを利用する機能部材を設置するときに移動路を構造物の躯体として利用するので、移動路の解体作業が不要になると共に躯体の新設が不要となり、施工効率を上げることができる。   The roof renovation method according to claim 4 of the present invention includes a functional member installation step of installing a functional member that uses solar energy on the moving path. According to this configuration, when installing a functional member that uses solar energy, such as a solar panel, in the structure, the moving path is used as a structure frame, so that the disassembly work of the moving path is not necessary and There is no need for new construction, and construction efficiency can be increased.

本発明の請求項5に係る屋根改修工法は、前記既設屋根解体工程は、前記既設屋根の下側に移動可能な吊り足場を取り付ける足場取付工程と、前記吊り足場の上で前記既設屋根を解体する解体工程と、を有する。この構成によれば、既設屋根の下側で足場が移動可能となっているので、足場の取り付け及び移動が容易となる。   In the roof renovation method according to claim 5 of the present invention, the existing roof dismantling step includes a scaffold attaching step of attaching a movable scaffold under the existing roof, and dismantling the existing roof on the suspension scaffold. And a dismantling process. According to this configuration, since the scaffold is movable under the existing roof, the scaffold can be easily attached and moved.

本発明の請求項6に係る構造物は、請求項1から請求項5のいずれか1項に記載の屋根改修工法で構築された前記新設屋根と、前記新設屋根が上部に設置された躯体と、を有する。この構成によれば、既設屋根上に仮設の屋根を構築する必要が無くなる。このため、屋根改修時の仮設部材の費用を低減でき、工期も短縮できる。さらに、既設屋根の解体作業が天候の影響を受けにくくなる。   A structure according to claim 6 of the present invention is the new roof constructed by the roof refurbishment method according to any one of claims 1 to 5, and a housing in which the new roof is installed at an upper part. Have. According to this configuration, there is no need to construct a temporary roof on the existing roof. For this reason, the cost of the temporary member at the time of roof repair can be reduced, and a construction period can also be shortened. Furthermore, the dismantling work for the existing roof is less susceptible to the influence of the weather.

本発明は、上記構成としたので、既設屋根上での仮設の屋根の構築が不要となる。   Since this invention set it as the said structure, construction of the temporary roof on an existing roof becomes unnecessary.

本発明の第1実施形態に係る既設屋根の改修が行われる建物の全体図である。1 is an overall view of a building where an existing roof is repaired according to a first embodiment of the present invention. (a)本発明の第1実施形態に係る建物の立面図である。(b)本発明の第1実施形態に係る建物の平面図である。(A) It is an elevation view of the building concerning a 1st embodiment of the present invention. (B) It is a top view of the building concerning a 1st embodiment of the present invention. 本発明の第1実施形態に係る新設屋根の移動側から見た建物の構成図である。It is a block diagram of the building seen from the moving side of the new roof which concerns on 1st Embodiment of this invention. (a)本発明の第1実施形態に係る新設屋根の移動方向から見た建物の部分構成図である。(b)本発明の第1実施形態に係る新設屋根の移動方向と直交する方向から見た建物の部分構成図である。(A) It is the partial block diagram of the building seen from the moving direction of the new roof which concerns on 1st Embodiment of this invention. (B) It is the partial block diagram of the building seen from the direction orthogonal to the moving direction of the new roof which concerns on 1st Embodiment of this invention. (a)、(b)本発明の第1実施形態に係る移動路上の新設屋根の移動手段を示す部分図である。(A), (b) It is a fragmentary figure which shows the moving means of the new roof on the moving path which concerns on 1st Embodiment of this invention. (a)〜(c)本発明の第1実施形態に係る屋根改修工法による新設屋根の移動工程及び設置工程を示す工程図である。(A)-(c) It is process drawing which shows the movement process and installation process of a new roof by the roof repair method which concerns on 1st Embodiment of this invention. (a)、(b)本発明の第1実施形態に係る屋根改修工法による新設屋根の設置後の既設屋根の解体工程を示す説明図である。(A), (b) It is explanatory drawing which shows the dismantling process of the existing roof after installation of the new roof by the roof repair method concerning 1st Embodiment of this invention. 本発明の第2実施形態に係る既設屋根の改修が行われる建物の平面図である。It is a top view of the building where repair of the existing roof which concerns on 2nd Embodiment of this invention is performed. (a)〜(c)本発明の第2実施形態に係る屋根改修工法による新設屋根の移動工程及び設置工程を示す工程図である。(A)-(c) It is process drawing which shows the moving process and installation process of a new roof by the roof repair method which concerns on 2nd Embodiment of this invention. 本発明の第3実施形態に係る既設屋根の改修が行われる建物の平面図である。It is a top view of the building where repair of the existing roof which concerns on 3rd Embodiment of this invention is performed. (a)〜(c)本発明の第3実施形態に係る屋根改修工法による新設屋根の移動工程及び設置工程を示す工程図である。(A)-(c) It is process drawing which shows the movement process and installation process of a new roof by the roof repair method which concerns on 3rd Embodiment of this invention. 本発明の第4実施形態に係る既設屋根の改修が行われた建物の平面図である。It is a top view of the building where the repair of the existing roof concerning 4th Embodiment of this invention was performed. (a)〜(c)本発明の第4実施形態に係る屋根改修工法による新設屋根及び太陽光パネルの移動工程及び設置工程を示す工程図である。(A)-(c) It is process drawing which shows the movement process and installation process of a new roof and a solar panel by the roof repair construction method which concern on 4th Embodiment of this invention. (a)〜(c)本発明の第5実施形態に係る既設屋根の改修工程を示す工程図である。(A)-(c) It is process drawing which shows the repair process of the existing roof which concerns on 5th Embodiment of this invention.

本発明の屋根改修工法の第1実施形態を図面に基づき説明する。図1に示すように、地盤11上には第1実施形態の建物10が構築されている。建物10は、平面視にて一方向(矢印E方向)に長い矩形状となっており、上部に屋根部12が設けられている。なお、以後の説明では、建物10を平面視したときの上方向を矢印N方向(北側)、下方向を矢印S方向(南側)、右方向を矢印E方向(東側)、左方向を矢印W方向(西側)とする。   1st Embodiment of the roof repair method of this invention is described based on drawing. As shown in FIG. 1, the building 10 of the first embodiment is constructed on the ground 11. The building 10 has a rectangular shape that is long in one direction (in the direction of arrow E) in plan view, and a roof portion 12 is provided on the top. In the following description, when the building 10 is viewed in plan, the upward direction is the arrow N direction (north side), the downward direction is the arrow S direction (south side), the right direction is the arrow E direction (east side), and the left direction is the arrow W The direction (west side).

屋根部12の中央には、複数のトップライト14が、矢印E方向に沿って間隔をあけると共に南側を向けて配設され、建物10内に採光可能となっている。また、屋根部12におけるトップライト14よりも南側には、改修が行われる設置現場の一例としての既設屋根16が矢印E方向に沿って延設されている。さらに、屋根部12における既設屋根16の西側には、後述する新設屋根20を構築するための仮設構台18が設けられている。   In the center of the roof portion 12, a plurality of toplights 14 are arranged along the direction of the arrow E and are arranged facing the south side, and can be daylighted in the building 10. Further, an existing roof 16 as an example of an installation site to be repaired is extended along the arrow E direction on the south side of the top light 14 in the roof portion 12. Further, on the west side of the existing roof 16 in the roof portion 12, a temporary gantry 18 for constructing a new roof 20 described later is provided.

仮設構台18上には、新設屋根20を構築するための施工足場26が設けられており、地盤11上から仮設構台18までには、昇降階段25が設けられている。なお、新設屋根20を仮設構台18から既設屋根16の上側まで移動させるときには、仮設構台18から既設屋根16まで矢印E方向に沿って、複数(本実施形態では4本)の仮設レール28が架設されるようになっている。本実施形態では、仮設レール28としてI形鋼を用いている。   A construction scaffold 26 for constructing the new roof 20 is provided on the temporary gantry 18, and an elevating staircase 25 is provided from the ground 11 to the temporary gantry 18. When the new roof 20 is moved from the temporary gantry 18 to the upper side of the existing roof 16, a plurality of (four in this embodiment) temporary rails 28 are installed from the temporary gantry 18 to the existing roof 16 along the arrow E direction. It has come to be. In the present embodiment, I-shaped steel is used as the temporary rail 28.

図2(a)に示すように、建物10よりも西側で且つ仮設構台18の西側の区域は、資材の搬入等が行われる工事ヤードS1とされており、工事ヤードS1内には揚重機22が設置されている。揚重機22は、鉛直方向に立設された支持部22Aと、支持部22Aから水平方向に延設された延設部22Bとを有しており、延設部22Bは仮設構台18の上方に配置されている。これにより、揚重機22により工事ヤードS1内の資材(例えばH形鋼等)が仮設構台18に揚げられるようになっている。また、建物10よりも東側には、既設建物24が構築されている。なお、揚重機22はいわゆるタワークレーンであるが、揚重機22に換えて移動式のラフタークレーンを用いてもよい。   As shown in FIG. 2A, an area on the west side of the building 10 and on the west side of the temporary gantry 18 is a construction yard S1 in which materials are carried in, and a lifting machine 22 is placed in the construction yard S1. Is installed. The lifting machine 22 has a support portion 22A standing upright in the vertical direction and an extension portion 22B extending in the horizontal direction from the support portion 22A, and the extension portion 22B is located above the temporary construction base 18. Has been placed. Thereby, the material (for example, H-section steel etc.) in the construction yard S <b> 1 is lifted to the temporary gantry 18 by the lifting machine 22. An existing building 24 is constructed on the east side of the building 10. Although the lifting machine 22 is a so-called tower crane, a mobile rough terrain crane may be used instead of the lifting machine 22.

図2(b)に示すように、建物10を平面視したときの建物10の周囲には、工事ヤードS1よりも南側の区域である南ヤードS2と、工事ヤードS1よりも北側の区域である北ヤードS3とが設定されている。ここで、本実施形態では、南ヤードS2及び北ヤードS3が、人、車等の往来があり工事禁止区域に設定されているものとする。このため、揚重機22は、建物10よりも西側の工事ヤードS1内のみが設置可能区域とされている。   As shown in FIG. 2B, when the building 10 is viewed in plan, there are a south yard S2 that is a south side of the construction yard S1 and a north side of the construction yard S1 around the building yard S1. North yard S3 is set. Here, in this embodiment, it is assumed that the south yard S2 and the north yard S3 are set as construction prohibition areas due to traffic of people, cars, and the like. For this reason, only the inside of the construction yard S <b> 1 on the west side of the building 10 can be installed in the lifting machine 22.

このように、揚重機22は、南ヤードS2、北ヤードS3、及び既設建物24を避けて工事ヤードS1に設置されているため、支持部22Aを回転中心Oとした半径Rの範囲しか延設部22Bが移動できず、既設屋根16全体での施工をカバーすることができない。よって、既設屋根16を改修するときには、図1に示すように、仮設レール28を用いて仮設構台18から既設屋根16の上側まで新設屋根20を移動させる。   Thus, since the lifting machine 22 is installed in the construction yard S1 avoiding the south yard S2, the north yard S3, and the existing building 24, only the range of the radius R with the support portion 22A as the rotation center O is extended. The part 22 </ b> B cannot move and cannot cover the entire construction of the existing roof 16. Therefore, when the existing roof 16 is repaired, the new roof 20 is moved from the temporary gantry 18 to the upper side of the existing roof 16 using the temporary rail 28 as shown in FIG.

一方、図3には、新設屋根20の移動側(東側)から見た建物10の構成が示されている。建物10は、図示しない基礎上に立設された複数の柱32と、柱32に対して矢印N、S方向に架設された大梁34と、大梁34に対して矢印E、W方向(図1参照)に架設された小梁36とを有している。   On the other hand, FIG. 3 shows the configuration of the building 10 as viewed from the moving side (east side) of the new roof 20. The building 10 includes a plurality of columns 32 erected on a foundation (not shown), a large beam 34 constructed in the directions of arrows N and S with respect to the column 32, and directions E and W with respect to the large beam 34 (FIG. 1). And a small beam 36 erected on the reference).

ここで、天井(既設屋根16)から鉄製の棒材38が吊下げられており、棒材38の下端部には矢印E、W方向(図1参照)にレール42が設けられている。そして、レール42から鉄製の吊材44が吊下げられており、吊材44の下端部には、既設屋根16の解体に用いる吊足場30A、30Bが固定されている。このようにして、吊足場30A、30Bは、吊材44で吊下げられ、矢印E、W方向に移動可能となっている。なお、大梁34の下側には、後述するパネル部材49が設けられるようになっている。   Here, an iron bar 38 is suspended from the ceiling (the existing roof 16), and a rail 42 is provided at the lower end of the bar 38 in the directions of arrows E and W (see FIG. 1). An iron suspension member 44 is suspended from the rail 42, and suspension scaffolds 30 </ b> A and 30 </ b> B used for dismantling the existing roof 16 are fixed to the lower end portion of the suspension member 44. In this way, the suspension scaffolds 30A and 30B are suspended by the suspension member 44 and are movable in the directions of arrows E and W. A panel member 49 described later is provided below the large beam 34.

図4(a)、(b)に示すように、既設屋根16は、断面が波形状の折板屋根であり、大梁34上に設けられた複数の支持部材35で支持されている。そして、既設屋根16上に新設屋根20を設置する前の段階では、既設屋根16に上下方向に貫通した複数の貫通孔16Aが形成されるようになっている。貫通孔16Aは、小梁36に沿って配置されており、小梁36上には、貫通孔16Aに挿通された複数の束材37が立設される。また、複数の束材37の上部には、前述の仮設レール28が架設されている。ここで、束材37の上面及び仮設レール28の上面は高さが揃えられている。   As shown in FIGS. 4A and 4B, the existing roof 16 is a folded plate roof having a corrugated cross section, and is supported by a plurality of support members 35 provided on the large beam 34. In a stage before the new roof 20 is installed on the existing roof 16, a plurality of through holes 16 </ b> A penetrating in the vertical direction are formed in the existing roof 16. The through-hole 16A is disposed along the small beam 36, and a plurality of bundle members 37 inserted through the through-hole 16A are erected on the small beam 36. In addition, the temporary rails 28 described above are installed on top of the plurality of bundle members 37. Here, the upper surface of the bundle member 37 and the upper surface of the temporary rail 28 have the same height.

一方、新設屋根20は、既設屋根16上への配置時に束材37上に載置され新設屋根20全体の重量を受ける梁となる補強鉄骨52と、補強鉄骨52上に固定された格子状のフレーム材46と、フレーム材46の各格子に1枚ずつ固定され光を透過する採光パネル48とで構成されている。フレーム材46は、西側へ傾斜した第1パネル48Aと、東側へ傾斜した第2パネル48Bとが連結され、矢印N、S方向(図4(a)参照)に見て山型となっている。なお、図4(a)、(b)は、既設屋根16上に新設屋根20を移動させた後、後述するローラーユニット50(図5(a)、(b)参照)を取り外して束材37上に補強鉄骨52を配置した状態を表している。ここで、新設屋根20の移動手段として、ローラーユニット50に代えて、テフロン(登録商標)で構成された支承材を用いてもよい。また、仮設レール28は、上面にステンレス板を貼り付けたものであってもよい。   On the other hand, the new roof 20 has a reinforcing steel frame 52 that serves as a beam that is placed on the bundle member 37 and receives the weight of the entire new roof 20 when placed on the existing roof 16, and a grid-like structure fixed on the reinforcing steel frame 52. The frame member 46 and a daylighting panel 48 that is fixed to each lattice of the frame member 46 and transmits light are configured. The frame member 46 is connected to a first panel 48A inclined to the west side and a second panel 48B inclined to the east side, and has a mountain shape when viewed in the directions of arrows N and S (see FIG. 4A). . 4A and 4B, after moving the new roof 20 onto the existing roof 16, a roller unit 50 (see FIGS. 5A and 5B), which will be described later, is removed and the bundle 37 is removed. The state which has arrange | positioned the reinforcing steel frame 52 is represented. Here, as a means for moving the new roof 20, a bearing member made of Teflon (registered trademark) may be used in place of the roller unit 50. Moreover, the temporary rail 28 may have a stainless steel plate attached to the upper surface.

次に、新設屋根20の移動手段について説明する。   Next, means for moving the new roof 20 will be described.

図5(a)に示すように、新設屋根20の移動時には、新設屋根20の下部にローラーユニット50が取り付けられる。ローラーユニット50は、補強鉄骨52の上面に配置される上板54と、補強鉄骨52の下面に配置される下板55とを有している。上板54及び下板55の両端部には貫通孔(図示省略)が形成されており、この貫通孔に上下方向を軸方向としてシャフト56、57が挿通されるようになっている。ここで、貫通孔にシャフト56、57を挿通してからシャフト56、57の上、下端部をナット53で締結することにより、上板54及び下板55が補強鉄骨52に固定される。また、下板55の下面には、下側へ向けて2枚の対向するフランジ55Aが突設されている。そして、フランジ55Aには、仮設レール28の上面28Aに接触して矢印E方向(又は矢印W方向)に回動するローラー58が回動可能に設けられている。   As shown in FIG. 5A, when the new roof 20 is moved, the roller unit 50 is attached to the lower part of the new roof 20. The roller unit 50 includes an upper plate 54 disposed on the upper surface of the reinforcing steel frame 52 and a lower plate 55 disposed on the lower surface of the reinforcing steel frame 52. Through holes (not shown) are formed at both ends of the upper plate 54 and the lower plate 55, and shafts 56 and 57 are inserted into the through holes with the vertical direction as the axial direction. Here, after the shafts 56 and 57 are inserted into the through holes, the upper and lower ends of the shafts 56 and 57 are fastened with the nuts 53, whereby the upper plate 54 and the lower plate 55 are fixed to the reinforcing steel frame 52. Further, two opposing flanges 55A project from the lower surface of the lower plate 55 toward the lower side. The flange 55A is rotatably provided with a roller 58 that contacts the upper surface 28A of the temporary rail 28 and rotates in the arrow E direction (or arrow W direction).

一方、図5(b)に示すように、仮設レール28の上面28Aには、新設屋根20を移動させるためのジャッキ62が固定されている。ジャッキ62は、ワイヤー63の一方の端部が接続されており、図示しない電源で駆動され矢印E方向にワイヤー63を引くようになっている。また、ワイヤー63の他方の端部は、補強鉄骨52(図5(a)参照)に取り付けられている。これにより、ジャッキ62を動作させると、新設屋根20が矢印E方向に移動することになる。なお、ワイヤー63の長さは既設屋根16の幅よりも短いため、ジャッキ62は、仮設レール28上の固定位置を複数箇所変えながら用いられる。   On the other hand, as shown in FIG. 5B, a jack 62 for moving the new roof 20 is fixed to the upper surface 28 </ b> A of the temporary rail 28. The jack 62 is connected to one end of a wire 63 and is driven by a power source (not shown) so as to pull the wire 63 in the direction of arrow E. The other end of the wire 63 is attached to the reinforcing steel frame 52 (see FIG. 5A). Thus, when the jack 62 is operated, the new roof 20 moves in the direction of arrow E. Since the length of the wire 63 is shorter than the width of the existing roof 16, the jack 62 is used while changing a plurality of fixing positions on the temporary rail 28.

次に、本発明の第1実施形態の作用について説明する。   Next, the operation of the first embodiment of the present invention will be described.

図6(a)に示すように、建物10の既設屋根16(2点鎖線で表示)に隣接する西側の区域に鉄骨及びコンクリートを用いて仮設構台18を構築する。仮設構台18の高さは既設屋根16の上面とほぼ同じ高さとなるように揃えられている。続いて、仮設構台18から既設屋根16の上面まで複数の仮設レール28を敷いてボルトで固定する。   As shown in FIG. 6A, a temporary gantry 18 is constructed using a steel frame and concrete in a west area adjacent to the existing roof 16 (indicated by a two-dot chain line) of the building 10. The height of the temporary gantry 18 is aligned to be substantially the same as the upper surface of the existing roof 16. Subsequently, a plurality of temporary rails 28 are laid from the temporary gantry 18 to the upper surface of the existing roof 16 and fixed with bolts.

続いて、仮設構台18上で新設屋根20を構築する。そして、仮設構台18の仮設レール28上にローラーユニット50(図5(a)参照)を配置すると共にローラーユニット50上に新設屋根20を配置し、新設屋根20の底部にローラーユニット50を取り付ける。また、仮設レール28上にジャッキ62(図5(b)参照)を固定する。なお、ジャッキ62は、新設屋根20を牽引可能な位置に固定されるが、図6(a)、(b)では仮設レール28上のジャッキ62の図示を省略している。   Subsequently, a new roof 20 is constructed on the temporary gantry 18. Then, the roller unit 50 (see FIG. 5A) is disposed on the temporary rail 28 of the temporary gantry 18, the new roof 20 is disposed on the roller unit 50, and the roller unit 50 is attached to the bottom of the new roof 20. Moreover, the jack 62 (refer FIG.5 (b)) is fixed on the temporary rail 28. FIG. The jack 62 is fixed at a position where the new roof 20 can be pulled, but the jack 62 on the temporary rail 28 is not shown in FIGS. 6 (a) and 6 (b).

続いて、図6(b)に示すように、ジャッキ62(図5(b)参照)による新設屋根20の牽引、ジャッキ62の取外し、仮設レール28上へのジャッキ62の固定、及び新設屋根20の牽引という工程を複数回繰り返して新設屋根20を移動すると共に、既設屋根16の東側端部上に新設屋根20を配置する。   Subsequently, as shown in FIG. 6B, the new roof 20 is pulled by the jack 62 (see FIG. 5B), the jack 62 is removed, the jack 62 is fixed on the temporary rail 28, and the new roof 20. The process of towing is repeated a plurality of times to move the new roof 20, and the new roof 20 is disposed on the east end of the existing roof 16.

続いて、図4(a)に示すように、新設屋根20の配置後、既設屋根16に複数の貫通孔16Aを形成して、束材37を小梁36上に立設する。なお、貫通孔16Aを形成するとき、上方を新設屋根20で覆うことにより、新設屋根20の設置作業への風雨の影響が抑えられる。   Subsequently, as shown in FIG. 4A, after the new roof 20 is arranged, a plurality of through holes 16 </ b> A are formed in the existing roof 16, and the bundle member 37 is erected on the small beam 36. In addition, when forming 16 A of through-holes, by covering the upper part with the new roof 20, the influence of the wind and rain on the installation work of the new roof 20 is suppressed.

続いて、図7(a)に示すように、束材37上に補強鉄骨52をボルト(又は溶接)で固定して既設屋根16上に新設屋根20を設置すると共に、小梁36の下方側に吊足場30を移動可能に取り付ける。続いて、図7(b)に示すように、吊足場30において新設屋根20の下側の既設屋根16及び支持部材35の解体作業を行う。そして、建物10における既設屋根16及び支持部材35が解体された部位に、前述のパネル部材49(図3参照)を天井として設置すると共に、パネル部材49から新設屋根20までの側壁(図示省略)を構築する。なお、パネル部材49を設置する場所以外の天井についても、天井内の設備(例えばダクト)の設置や仕上げ工事を行う。   Subsequently, as shown in FIG. 7A, the reinforcing steel frame 52 is fixed on the bundle member 37 with bolts (or welding) to install the new roof 20 on the existing roof 16, and the lower side of the small beam 36. The suspended scaffold 30 is attached to be movable. Subsequently, as shown in FIG. 7B, the dismantling work of the existing roof 16 and the support member 35 on the lower side of the new roof 20 is performed in the suspension scaffold 30. And the above-mentioned panel member 49 (refer FIG. 3) is installed as a ceiling in the site | part where the existing roof 16 and the supporting member 35 in the building 10 were demolished, and the side wall (illustration omitted) from the panel member 49 to the newly installed roof 20 Build up. In addition, about the ceiling other than the place which installs the panel member 49, installation (for example, duct) in a ceiling and finishing construction are performed.

続いて、図6(b)、(c)に示すように、次の新設屋根20を仮設構台18上で構築すると共に同様の手順で矢印E方向に移動し、複数の新設屋根20を既設屋根16上に順次設置する。そして、吊足場30を新設屋根20の移動方向(矢印E方向)とは反対側の矢印W方向に順次移動すると共に、新設屋根20の下方側の既設屋根16の解体作業を行う。このようにして、既設屋根16上への各新設屋根20の設置が終了した後、仮設レール28を撤去して、建物10における屋根部12の改修が終了する。   Subsequently, as shown in FIGS. 6B and 6C, the next new roof 20 is constructed on the temporary gantry 18 and moved in the direction of arrow E in the same procedure, and a plurality of new roofs 20 are installed on the existing roof 20. 16 are installed sequentially. Then, the suspension scaffold 30 is sequentially moved in the arrow W direction opposite to the moving direction (arrow E direction) of the new roof 20 and the existing roof 16 on the lower side of the new roof 20 is dismantled. Thus, after the installation of each new roof 20 on the existing roof 16 is completed, the temporary rail 28 is removed, and the repair of the roof portion 12 in the building 10 is completed.

ここで、上記工法によれば、新設屋根20を既設屋根16上に配置した後で既設屋根16を解体するため、既設屋根16上に仮設屋根を構築する必要が無い。このため、屋根改修時の仮設屋根の設置、撤去の費用を低減できると共に仮設工期も短縮できる。さらに、既設屋根16の解体現場(吊足場30)が新設屋根20で保護されるので、既設屋根16の解体作業が風雨等の天候の影響を受けにくくなる。   Here, according to the above construction method, since the existing roof 16 is disassembled after the new roof 20 is arranged on the existing roof 16, there is no need to construct a temporary roof on the existing roof 16. For this reason, the cost of installing and removing the temporary roof at the time of roof repair can be reduced and the temporary construction period can be shortened. Furthermore, since the dismantling site (suspended scaffolding 30) of the existing roof 16 is protected by the new roof 20, the dismantling work of the existing roof 16 is not easily affected by weather such as wind and rain.

また、上記工法によれば、設置現場である既設屋根16と異なる場所にある仮設構台18で新設屋根20を構築し、新設屋根20を仮設レール28上で移動させてから各配置場所に設置するので、本実施形態のように揚重機22(図1参照)が使用できない設置現場でも新設屋根20を設置することができる。また、設置現場と異なる場所にある仮設構台18で新設屋根20を構築するので、新設屋根20の構築作業が既設屋根16の下側における歩行者の往来等に影響を与えない。このため、新設屋根20の構築作業を昼間に行うことができ、既設屋根16の改修の工期短縮が可能となる。   Further, according to the above construction method, the new roof 20 is constructed with the temporary gantry 18 at a location different from the existing roof 16 as the installation site, and the new roof 20 is moved on the temporary rail 28 and then installed at each placement location. Therefore, the new roof 20 can be installed even at an installation site where the lifting machine 22 (see FIG. 1) cannot be used as in this embodiment. In addition, since the new roof 20 is constructed with the temporary gantry 18 at a location different from the installation site, the construction work of the new roof 20 does not affect the traffic of pedestrians on the lower side of the existing roof 16. For this reason, the construction work of the new roof 20 can be performed in the daytime, and the work period for repairing the existing roof 16 can be shortened.

さらに、上記工法によれば、既設屋根16の解体工程において、既設屋根16の下側に移動可能な吊足場30を取り付け、この吊足場30を移動させながら既設屋根16を解体するので、解体作業の足場の取り付け及び移動が容易となる。   Furthermore, according to the above construction method, in the dismantling process of the existing roof 16, the movable scaffolding 30 is attached to the lower side of the existing roof 16, and the existing roof 16 is dismantled while the suspension scaffold 30 is moved. The attachment and movement of the scaffolding can be facilitated.

次に、本発明の屋根改修工法の第2実施形態を図面に基づき説明する。なお、前述した第1実施形態と基本的に同一の部材には、前記第1実施形態と同一の符号を付与してその説明を省略する。   Next, a second embodiment of the roof repair method according to the present invention will be described with reference to the drawings. Note that the same reference numerals as those in the first embodiment are given to the members that are basically the same as those in the first embodiment described above, and the description thereof is omitted.

図8には、第2実施形態の建物70の平面図が示されている。建物70は、第1実施形態の建物10(図2(b)参照)と同様の場所にトップライト14及び既設屋根16が設けられているが、工事ヤードS1が南側ではなく北側に設定されており、仮設構台18が屋根部12の北西の隅に設けられている点が建物10と異なっている。また、工事ヤードS1内には揚重機22が設置されている。   The top view of the building 70 of 2nd Embodiment is shown by FIG. The building 70 is provided with the toplight 14 and the existing roof 16 at the same location as the building 10 of the first embodiment (see FIG. 2B), but the construction yard S1 is set on the north side instead of the south side. The point that the temporary base 18 is provided at the northwest corner of the roof 12 is different from the building 10. A lifting machine 22 is installed in the construction yard S1.

ここで、図9(a)に示すように、建物70は、仮設構台18から既設屋根16まで直線状に仮設レール28を設置できない。よって、既設屋根16を改修するときには、矢印S方向に沿った補助仮設レール72と仮設レール28とを用いて、仮設構台18から既設屋根16の上側まで新設屋根20を移動させる。   Here, as shown in FIG. 9A, in the building 70, the temporary rail 28 cannot be installed linearly from the temporary gantry 18 to the existing roof 16. Therefore, when the existing roof 16 is repaired, the new roof 20 is moved from the temporary gantry 18 to the upper side of the existing roof 16 using the auxiliary temporary rail 72 and the temporary rail 28 along the arrow S direction.

補助仮設レール72は、仮設構台18から矢印S方向に向かって仮設レール28と交差する位置(交差位置P)まで延設されるものであり、補助仮設レール72の上面の高さと仮設レール28の上面の高さは同じ高さに揃えられる。これにより、新設屋根20は、補助仮設レール72から仮設レール28への移動が容易となっている。   The auxiliary temporary rail 72 extends from the temporary gantry 18 to the position (intersection position P) intersecting the temporary rail 28 in the direction of the arrow S, and the height of the upper surface of the auxiliary temporary rail 72 and the temporary rail 28. The height of the top surface is aligned to the same height. Thereby, the new roof 20 can be easily moved from the auxiliary temporary rail 72 to the temporary rail 28.

次に、第2実施形態の作用について説明する。   Next, the operation of the second embodiment will be described.

図9(a)に示すように、建物70の屋根部12における北西の隅に鉄骨及びコンクリートを用いて仮設構台18を構築する。仮設構台18の高さは既設屋根16の上面とほぼ同じ高さとなるように揃えられている。続いて、仮設構台18から交差位置Pまで複数の補助仮設レール72を敷くと共に、交差位置Pから既設屋根16の上面まで複数の仮設レール28を敷いてそれぞれボルトで固定する。   As shown in FIG. 9A, a temporary gantry 18 is constructed using steel frames and concrete at the northwest corner of the roof portion 12 of the building 70. The height of the temporary gantry 18 is aligned to be substantially the same as the upper surface of the existing roof 16. Subsequently, a plurality of auxiliary temporary rails 72 are laid from the temporary gantry 18 to the intersection position P, and a plurality of temporary rails 28 are laid from the intersection position P to the upper surface of the existing roof 16 and fixed with bolts.

続いて、仮設構台18上で新設屋根20を構築する。そして、仮設構台18の補助仮設レール72上にローラーユニット50(図5(a)参照)を配置すると共にローラーユニット50上に新設屋根20を配置し、新設屋根20の底部にローラーユニット50を取り付ける。また、交差位置Pにおいて、補助仮設レール72上にジャッキ62(図5(b)参照)を固定する。なお、ジャッキ62の図示は省略している。   Subsequently, a new roof 20 is constructed on the temporary gantry 18. Then, the roller unit 50 (see FIG. 5A) is arranged on the auxiliary temporary rail 72 of the temporary construction base 18, the new roof 20 is arranged on the roller unit 50, and the roller unit 50 is attached to the bottom of the new roof 20. . Further, the jack 62 (see FIG. 5B) is fixed on the auxiliary temporary rail 72 at the intersection position P. In addition, illustration of the jack 62 is abbreviate | omitted.

続いて、図9(b)に示すように、ジャッキ62(図5(b)参照)を用いて新設屋根20を矢印S方向に牽引し、新設屋根20を交差位置Pまで移動する。そして、交差位置Pにおいて、新設屋根20をジャッキアップすると共にローラーユニット50(図5(a)参照)の取り付け方向を矢印E方向に変更する。さらに、仮設レール28上にジャッキ62を固定する。   Subsequently, as shown in FIG. 9B, the new roof 20 is pulled in the arrow S direction using the jack 62 (see FIG. 5B), and the new roof 20 is moved to the intersection position P. At the intersection position P, the new roof 20 is jacked up, and the mounting direction of the roller unit 50 (see FIG. 5A) is changed to the arrow E direction. Further, the jack 62 is fixed on the temporary rail 28.

続いて、ジャッキ62による新設屋根20の矢印E方向への牽引、ジャッキ62の取外し、仮設レール28上へのジャッキ62の固定、及び新設屋根20の矢印E方向への牽引という工程を複数回繰り返して新設屋根20を移動すると共に、既設屋根16の東側端部上に新設屋根20を配置する。   Subsequently, the steps of pulling the new roof 20 with the jack 62 in the direction of arrow E, removing the jack 62, fixing the jack 62 on the temporary rail 28, and pulling the new roof 20 in the direction of arrow E are repeated a plurality of times. The new roof 20 is moved, and the new roof 20 is disposed on the east end of the existing roof 16.

続いて、図4(a)に示すように、新設屋根20の配置後、既設屋根16に複数の貫通孔16Aを形成して、束材37を小梁36上に立設する。なお、貫通孔16Aを形成するとき、上方を新設屋根20で覆うことにより、新設屋根20の設置作業への風雨の影響が抑えられる。   Subsequently, as shown in FIG. 4A, after the new roof 20 is arranged, a plurality of through holes 16 </ b> A are formed in the existing roof 16, and the bundle member 37 is erected on the small beam 36. In addition, when forming 16 A of through-holes, by covering the upper part with the new roof 20, the influence of the wind and rain on the installation work of the new roof 20 is suppressed.

続いて、図7(a)に示すように、束材37上に補強鉄骨52をボルトで固定して既設屋根16上に新設屋根20を設置すると共に、小梁36の下方側に吊足場30を移動可能に取り付ける。続いて、図7(b)に示すように、吊足場30において新設屋根20の下側の既設屋根16及び支持部材35の解体作業を行う。そして、建物70(図8参照)における既設屋根16及び支持部材35が解体された部位に、前述のパネル部材49(図3参照)を天井として設置すると共に、パネル部材49から新設屋根20までの側壁(図示省略)を構築する。   Subsequently, as shown in FIG. 7A, the reinforcing steel frame 52 is fixed on the bundle member 37 with bolts to install the new roof 20 on the existing roof 16, and the suspended scaffolding 30 on the lower side of the small beam 36. Is mounted so that it can be moved. Subsequently, as shown in FIG. 7B, the dismantling work of the existing roof 16 and the support member 35 on the lower side of the new roof 20 is performed in the suspension scaffold 30. And the above-mentioned panel member 49 (refer FIG. 3) is installed as a ceiling in the site | part where the existing roof 16 and the support member 35 in the building 70 (refer FIG. 8) were demolished, and from the panel member 49 to the new roof 20 Construct side walls (not shown).

続いて、図9(b)、(c)に示すように、次の新設屋根20を仮設構台18上で構築すると共に同様の手順で矢印S方向及び矢印E方向に移動し、複数の新設屋根20を既設屋根16上に順次設置する。そして、吊足場30(図7(a)参照)を新設屋根20の移動方向(矢印E方向)とは反対側の矢印W方向に順次移動すると共に、新設屋根20の下方側の既設屋根16の解体作業を行う。このようにして、既設屋根16上への各新設屋根20の設置が終了した後、仮設レール28及び補助仮設レール72を撤去して、建物70における屋根部12の改修が終了する。   Subsequently, as shown in FIGS. 9B and 9C, the next new roof 20 is constructed on the temporary gantry 18 and moved in the direction of the arrow S and the arrow E in the same procedure, so that a plurality of new roofs are formed. 20 are sequentially installed on the existing roof 16. Then, the suspension scaffold 30 (see FIG. 7A) is sequentially moved in the arrow W direction opposite to the moving direction of the new roof 20 (arrow E direction), and the existing roof 16 below the new roof 20 is moved. Perform dismantling work. Thus, after the installation of each new roof 20 on the existing roof 16 is completed, the temporary rail 28 and the auxiliary temporary rail 72 are removed, and the repair of the roof portion 12 in the building 70 is completed.

このように、上記工法によれば、新設屋根20の移動経路が、矢印S方向に延設された補助仮設レール72と、矢印E方向に延設された仮設レール28とで構成されており、新設屋根20は、補助仮設レール72及び仮設レール28上で方向を変えながら移動される。このため、第1実施形態の建物10(図1参照)の屋根改修工法の作用に加えて、さらに、仮設構台18から既設屋根16まで直線状の仮設レール28を設けることができない場合でも、新設屋根20を既設屋根16まで移動することができる。   Thus, according to the above construction method, the moving path of the new roof 20 is composed of the auxiliary temporary rail 72 extended in the arrow S direction and the temporary rail 28 extended in the arrow E direction, The new roof 20 is moved while changing its direction on the auxiliary temporary rail 72 and the temporary rail 28. For this reason, in addition to the operation of the roof renovation method for the building 10 (see FIG. 1) of the first embodiment, even if the linear temporary rail 28 from the temporary gantry 18 to the existing roof 16 cannot be provided, it is newly installed. The roof 20 can be moved to the existing roof 16.

次に、本発明の屋根改修工法の第3実施形態を図面に基づき説明する。なお、前述した第1、第2実施形態と基本的に同一の部材には、前記第1、第2実施形態と同一の符号を付与してその説明を省略する。   Next, a third embodiment of the roof repair method according to the present invention will be described with reference to the drawings. Note that the same reference numerals as those in the first and second embodiments are given to the same members as those in the first and second embodiments described above, and the description thereof is omitted.

図10には、第3実施形態の建物80の平面図が示されている。建物80は、第1実施形態の建物10(図2(b)参照)と同様に屋根部12にトップライト14及び既設屋根16が設けられているが、屋根部12における既設屋根16よりも西側に仮設構台18が設けられ、既設屋根16よりも東側に仮設構台82が設けられた構成となっている。また、建物80は、第1実施形態の既設建物24が無く、代わりに建物80よりも東側に工事ヤードS4が設定されている。そして、工事ヤードS1内には揚重機22が設置され、工事ヤードS4内には揚重機22と同じ構成の揚重機84が設置されている。   The top view of the building 80 of 3rd Embodiment is shown by FIG. The building 80 is provided with the top light 14 and the existing roof 16 on the roof portion 12 in the same manner as the building 10 of the first embodiment (see FIG. 2B), but on the west side of the existing roof 16 in the roof portion 12. Is provided with a temporary gantry 18 and a temporary gantry 82 on the east side of the existing roof 16. Further, the building 80 does not have the existing building 24 of the first embodiment, and instead, a construction yard S4 is set on the east side of the building 80. A lifting machine 22 is installed in the construction yard S1, and a lifting machine 84 having the same configuration as the lifting machine 22 is installed in the construction yard S4.

次に、第3実施形態の作用について説明する。   Next, the operation of the third embodiment will be described.

図11(a)に示すように、建物80の屋根部12における既設屋根16の西側と東側に鉄骨及びコンクリートを用いて仮設構台18、82を構築する。仮設構台18、82の高さは既設屋根16の上面とほぼ同じ高さとなるように揃えられている。続いて、仮設構台18から既設屋根16の上面を通って仮設構台82まで複数の仮設レール28を敷いてそれぞれボルトで固定する。   As shown to Fig.11 (a), the temporary construction bases 18 and 82 are constructed | assembled on the west side and the east side of the existing roof 16 in the roof part 12 of the building 80 using a steel frame and concrete. The heights of the temporary construction bases 18 and 82 are aligned so as to be substantially the same height as the upper surface of the existing roof 16. Subsequently, a plurality of temporary rails 28 are laid from the temporary gantry 18 through the upper surface of the existing roof 16 to the temporary gantry 82 and fixed with bolts.

続いて、仮設構台18、82上でそれぞれ新設屋根20を構築する。そして、仮設構台18の仮設レール28上にローラーユニット50(図5(a)参照)を配置すると共にローラーユニット50上に新設屋根20を配置し、新設屋根20の底部にローラーユニット50を取り付ける。同様にして、仮設構台82上の新設屋根20の底部にローラーユニット50を取り付ける。また、2台のジャッキ62(図5(b)参照)を仮設レール28上でそれぞれ矢印W方向、矢印E方向に向けて固定する。なお、ジャッキ62の図示は省略している。   Subsequently, the new roof 20 is constructed on the temporary construction bases 18 and 82, respectively. Then, the roller unit 50 (see FIG. 5A) is disposed on the temporary rail 28 of the temporary gantry 18, the new roof 20 is disposed on the roller unit 50, and the roller unit 50 is attached to the bottom of the new roof 20. Similarly, the roller unit 50 is attached to the bottom of the new roof 20 on the temporary gantry 82. Also, two jacks 62 (see FIG. 5B) are fixed on the temporary rail 28 in the direction of the arrow W and the direction of the arrow E, respectively. The jack 62 is not shown.

続いて、図11(b)に示すように、ジャッキ62(図5(b)参照)を用いて仮設構台18上の新設屋根20を矢印E方向に牽引すると共に、仮設構台82上の新設屋根20を矢印W方向に牽引する。そして、仮設レール28の中央に2つの新設屋根20を並べて配置する。   Subsequently, as shown in FIG. 11B, the new roof 20 on the temporary gantry 18 is pulled in the direction of arrow E by using a jack 62 (see FIG. 5B), and the new roof on the temporary gantry 82 is provided. 20 is pulled in the direction of arrow W. Then, two new roofs 20 are arranged side by side in the center of the temporary rail 28.

続いて、図4(a)に示すように、各新設屋根20の配置後、既設屋根16に複数の貫通孔16Aを形成して、束材37を小梁36上に立設する。なお、貫通孔16Aを形成するとき、上方を新設屋根20で覆うことにより、新設屋根20の設置作業への風雨の影響が抑えられる。   Subsequently, as shown in FIG. 4A, after arranging each new roof 20, a plurality of through holes 16 </ b> A are formed in the existing roof 16, and the bundle member 37 is erected on the small beam 36. In addition, when forming 16 A of through-holes, by covering the upper part with the new roof 20, the influence of the wind and rain on the installation work of the new roof 20 is suppressed.

続いて、図7(a)に示すように、束材37上に補強鉄骨52をボルトで固定して既設屋根16上に各新設屋根20を設置すると共に、小梁36の下方側に吊足場30を移動可能に取り付ける。続いて、図7(b)に示すように、吊足場30において新設屋根20の下側の既設屋根16及び支持部材35の解体作業を行う。そして、建物80(図10参照)における既設屋根16及び支持部材35が解体された部位に、前述のパネル部材49(図3参照)を天井として設置すると共に、パネル部材49から新設屋根20までの側壁(図示省略)を構築する。   Subsequently, as shown in FIG. 7A, the reinforcing steel frame 52 is fixed on the bundle member 37 with bolts to install each new roof 20 on the existing roof 16, and the suspended scaffolding is provided below the small beam 36. 30 is movably mounted. Subsequently, as shown in FIG. 7B, the dismantling work of the existing roof 16 and the support member 35 on the lower side of the new roof 20 is performed in the suspension scaffold 30. And the above-mentioned panel member 49 (refer FIG. 3) is installed as a ceiling in the site | part where the existing roof 16 and the support member 35 in the building 80 (refer FIG. 10) were demolished, and from the panel member 49 to the new roof 20 Construct side walls (not shown).

続いて、図11(b)、(c)に示すように、次の新設屋根20を仮設構台18、82上で構築すると共に同様の手順で矢印E方向又は矢印W方向に移動し、複数の新設屋根20を既設屋根16上に順次設置する。そして、吊足場30(図7(a)参照)を新設屋根20の移動方向とは反対方向に順次移動すると共に、新設屋根20の下方側の既設屋根16の解体作業を行う。このようにして、既設屋根16上への各新設屋根20の設置が終了した後、仮設レール28を撤去して、建物70における屋根部12の改修が終了する。この工法によれば、仮設構台18、82上で複数の新設屋根20を同時期に構築できるので、工期を短縮することができる。   Subsequently, as shown in FIGS. 11B and 11C, the next new roof 20 is constructed on the temporary gantry 18 and 82 and moved in the arrow E direction or the arrow W direction in the same procedure. The new roof 20 is sequentially installed on the existing roof 16. Then, the suspension scaffold 30 (see FIG. 7A) is sequentially moved in the direction opposite to the moving direction of the new roof 20 and the existing roof 16 on the lower side of the new roof 20 is dismantled. Thus, after the installation of each new roof 20 on the existing roof 16 is completed, the temporary rail 28 is removed, and the repair of the roof portion 12 in the building 70 is completed. According to this construction method, since a plurality of new roofs 20 can be constructed on the temporary gantry 18 and 82 at the same time, the construction period can be shortened.

次に、本発明の屋根改修工法の第4実施形態を図面に基づき説明する。なお、前述した第1〜第3実施形態と基本的に同一の部材には、前記第1〜第3実施形態と同一の符号を付与してその説明を省略する。   Next, a fourth embodiment of the roof repair method according to the present invention will be described with reference to the drawings. The same reference numerals as those in the first to third embodiments are given to the basically same members as those in the first to third embodiments, and the description thereof is omitted.

図12には、第4実施形態の建物90の平面図が示されている。建物90は、第1実施形態の建物10(図2(b)参照)と基本的に同様であるが、既設屋根16が設けられている領域に新設屋根20と、機能部材の一例としての太陽光パネル29とが交互に設けられている点が異なっている。太陽光パネル29は、太陽(光)エネルギーを電気エネルギーに変換する太陽電池(図示省略)が複数設けられた構成となっており、太陽光パネル29で集められた電気エネルギーは建物90内の各部で利用されるようになっている。   The top view of the building 90 of 4th Embodiment is shown by FIG. The building 90 is basically the same as the building 10 of the first embodiment (see FIG. 2B), but the new roof 20 and the sun as an example of a functional member in the area where the existing roof 16 is provided. The difference is that the light panels 29 are alternately provided. The solar panel 29 has a configuration in which a plurality of solar cells (not shown) for converting solar (light) energy into electrical energy are provided, and the electrical energy collected by the solar panel 29 is stored in each part of the building 90. It has come to be used in.

次に、第4実施形態の作用について説明する。   Next, the operation of the fourth embodiment will be described.

図13(a)に示すように、建物90の屋根部12における既設屋根16の西側に鉄骨及びコンクリートを用いて仮設構台18を構築する。仮設構台18の高さは既設屋根16の上面とほぼ同じ高さとなるように揃えられている。続いて、仮設構台18から既設屋根16の上面まで複数の仮設レール28を敷いてそれぞれボルトで固定する。   As shown in FIG. 13A, a temporary gantry 18 is constructed using steel frames and concrete on the west side of the existing roof 16 in the roof portion 12 of the building 90. The height of the temporary gantry 18 is aligned to be substantially the same as the upper surface of the existing roof 16. Subsequently, a plurality of temporary rails 28 are laid from the temporary gantry 18 to the upper surface of the existing roof 16 and fixed with bolts.

続いて、仮設構台18上で新設屋根20を構築する。そして、仮設構台18の仮設レール28上にローラーユニット50(図5(a)参照)を配置すると共にローラーユニット50上に新設屋根20を配置し、新設屋根20の底部にローラーユニット50を取り付ける。また、ジャッキ62(図5(b)参照)を仮設レール28上に固定する。なお、ジャッキ62の図示は省略している。   Subsequently, a new roof 20 is constructed on the temporary gantry 18. Then, the roller unit 50 (see FIG. 5A) is disposed on the temporary rail 28 of the temporary gantry 18, the new roof 20 is disposed on the roller unit 50, and the roller unit 50 is attached to the bottom of the new roof 20. Further, the jack 62 (see FIG. 5B) is fixed on the temporary rail 28. In addition, illustration of the jack 62 is abbreviate | omitted.

続いて、図13(b)に示すように、ジャッキ62(図5(b)参照)を用いて仮設構台18上の新設屋根20を矢印E方向に牽引する。そして、図4(a)に示すように、新設屋根20の配置後、既設屋根16に複数の貫通孔16Aを形成して、束材37を小梁36上に立設する。なお、貫通孔16Aを形成するとき、上方を新設屋根20で覆うことにより、新設屋根20の設置作業への風雨の影響が抑えられる。   Subsequently, as shown in FIG. 13B, the new roof 20 on the temporary gantry 18 is pulled in the direction of arrow E using the jack 62 (see FIG. 5B). Then, as shown in FIG. 4A, after the new roof 20 is arranged, a plurality of through holes 16 </ b> A are formed in the existing roof 16, and the bundle member 37 is erected on the small beam 36. In addition, when forming 16 A of through-holes, by covering the upper part with the new roof 20, the influence of the wind and rain on the installation work of the new roof 20 is suppressed.

続いて、図7(a)に示すように、束材37上に補強鉄骨52をボルトで固定して既設屋根16上に新設屋根20を設置すると共に、小梁36の下方側に吊足場30を移動可能に取り付ける。続いて、図7(b)に示すように、吊足場30において新設屋根20の下側の既設屋根16及び支持部材35の解体作業を行う。そして、建物90(図12参照)における既設屋根16及び支持部材35が解体された部位に、前述のパネル部材49(図3参照)を天井として設置すると共に、パネル部材49から新設屋根20までの側壁(図示省略)を構築する。   Subsequently, as shown in FIG. 7A, the reinforcing steel frame 52 is fixed on the bundle member 37 with bolts to install the new roof 20 on the existing roof 16, and the suspended scaffolding 30 on the lower side of the small beam 36. Is mounted so that it can be moved. Subsequently, as shown in FIG. 7B, the dismantling work of the existing roof 16 and the support member 35 on the lower side of the new roof 20 is performed in the suspension scaffold 30. And the above-mentioned panel member 49 (refer FIG. 3) is installed as a ceiling in the site | part where the existing roof 16 and the supporting member 35 in the building 90 (refer FIG. 12) were disassembled, and from the panel member 49 to the new roof 20 Construct side walls (not shown).

続いて、図13(b)、(c)に示すように、新設屋根20と同様の手順により、仮設構台18から既設屋根16上まで太陽光パネル29を矢印E方向に移動して、予め決めた位置にボルトで固定して設置する。ここで、仮設レール28のうち、太陽光パネル29の下側に敷かれている部分は、太陽光パネル29を支持するための躯体として用いられるため、そのまま撤去せずに設置しておく。   Subsequently, as shown in FIGS. 13B and 13C, the solar panel 29 is moved in the direction of arrow E from the temporary gantry 18 to the existing roof 16 by the same procedure as that for the new roof 20, and determined in advance. Fix it in place with bolts. Here, the portion of the temporary rail 28 that is laid under the solar panel 29 is used as a housing for supporting the solar panel 29, and thus is installed without being removed as it is.

続いて、新設屋根20、太陽光パネル29の順番で、新設屋根20及び太陽光パネル29を既設屋根16上に順次設置し、新設屋根20の下側のみ既設屋根16の解体作業を行う。このようにして、既設屋根16上への各新設屋根20及び太陽光パネル29の設置が終了した後、新設屋根20の下側にある仮設レール28を撤去して、建物90における屋根部12の改修が終了する。この工法によれば、仮設レール28を太陽光パネル29の躯体として利用するので、太陽光パネル29の設置場所での仮設レール28の解体作業(撤去)が不要になると共に、太陽光パネル29用の躯体を別途新設する必要がなくなり、建物90の施工効率を上げることができる。   Subsequently, the new roof 20 and the solar panel 29 are sequentially installed on the existing roof 16 in the order of the new roof 20 and the solar panel 29, and the existing roof 16 is disassembled only on the lower side of the new roof 20. In this way, after the installation of each new roof 20 and the solar panel 29 on the existing roof 16 is completed, the temporary rail 28 on the lower side of the new roof 20 is removed, and the roof portion 12 of the building 90 is removed. Renovation is complete. According to this construction method, since the temporary rail 28 is used as a housing of the solar panel 29, the dismantling work (removal) of the temporary rail 28 at the installation location of the solar panel 29 is not required, and the solar panel 29 is used. This eliminates the need for newly installing a new frame and increases the construction efficiency of the building 90.

次に、本発明の屋根改修工法の第5実施形態を図面に基づき説明する。   Next, a fifth embodiment of the roof repair method of the present invention will be described with reference to the drawings.

図14(a)には、第5実施形態の建物100の模式図(縦断面図)が示されている。建物100は、図示しない基礎上に立設された複数の柱104と、複数の柱104に架設された梁102とを有している。また、梁102上には、コンクリートで形成された既設屋根106が設けられている。なお、第5実施形態では、揚重機(図示省略)が既設屋根106全体で作業可能となるように設けられており、既設屋根106上に新設屋根103を設置する場合について説明する。   FIG. 14A shows a schematic diagram (longitudinal sectional view) of the building 100 of the fifth embodiment. The building 100 includes a plurality of pillars 104 erected on a foundation (not shown), and beams 102 erected on the plurality of pillars 104. An existing roof 106 made of concrete is provided on the beam 102. In the fifth embodiment, a case will be described in which a lifting machine (not shown) is provided so that the entire roof 106 can be operated, and the new roof 103 is installed on the existing roof 106.

新設屋根103は、新設屋根20(図3参照)と同様に山形のトップライトであり、採光可能となっている。また、新設屋根103は、束材105を介して梁102に固定されるようになっている。   The new roof 103 is a mountain-shaped toplight, like the new roof 20 (see FIG. 3), and can be daylighted. Further, the new roof 103 is fixed to the beam 102 via the bundle member 105.

次に、第5実施形態の作用について説明する。   Next, the operation of the fifth embodiment will be described.

図14(a)に示すように、建物100の既設屋根106において、揚重機(図示省略)を用いて予め決められた場所に新設屋根103を配置する。なお、この時点では、新設屋根103は図示しない支持部材により既設屋根106上で支持されており、束材105は設けられていない。   As shown in FIG. 14A, on the existing roof 106 of the building 100, a new roof 103 is arranged at a predetermined location using a lifting machine (not shown). At this point, the new roof 103 is supported on the existing roof 106 by a support member (not shown), and the bundle member 105 is not provided.

続いて、新設屋根103の下側で既設屋根106に貫通孔(図示省略)を形成し、この貫通孔を通して梁102上に束材105を設置する。なお、この貫通孔の形成作業時は、既設屋根106上に新設屋根103が配置されているため、作業が風雨などの天候に影響されるのを防ぐことができる。そして、新設屋根103を束材105上にボルトで固定して設置した後、図示しない支持部材を撤去する。   Subsequently, a through hole (not shown) is formed in the existing roof 106 below the new roof 103, and the bundle member 105 is installed on the beam 102 through the through hole. In addition, since the new roof 103 is disposed on the existing roof 106 during the formation of the through hole, the work can be prevented from being affected by weather such as wind and rain. Then, after the new roof 103 is installed on the bundle member 105 with bolts, a support member (not shown) is removed.

続いて、図14(b)に示すように、既設屋根106の下側に吊足場108を移動可能に設け、吊足場108上で既設屋根106に採光用の複数の貫通孔106Aを形成する。これにより、建物100の内部に新設屋根103を通して光が入射するようになる。   Next, as shown in FIG. 14B, a suspended scaffold 108 is movably provided on the lower side of the existing roof 106, and a plurality of through holes 106 </ b> A for lighting are formed in the existing roof 106 on the suspended scaffold 108. As a result, light enters the inside of the building 100 through the new roof 103.

続いて、図14(b)、(c)に示すように、同様の手順により、先に設置した新設屋根103の隣に新たな新設屋根103を設置し、既設屋根106に貫通孔106Bを形成する。このように、揚重機(図示省略)で対応可能なに既設屋根106がある場合は、新設屋根103を移動させなくてもよい。   Subsequently, as shown in FIGS. 14B and 14C, a new new roof 103 is installed next to the previously installed new roof 103 and a through hole 106 </ b> B is formed in the existing roof 106 by the same procedure. To do. Thus, if there is an existing roof 106 that can be handled by a lifting machine (not shown), the new roof 103 need not be moved.

なお、本発明は上記の実施形態に限定されない。   In addition, this invention is not limited to said embodiment.

新設屋根20の移動手段として、前述のように、ローラーユニット50に代えて、テフロン(登録商標)で構成された支承材を用いてもよい。また、仮設レール28、補助仮設レール72は、上面にステンレス板を貼り付けたものであってもよい。さらに、新設屋根20の移動方向は、矢印E方向、矢印S方向に限らず、既設屋根106の設置場所に応じて、矢印N方向、矢印W方向であってもよい。   As described above, instead of the roller unit 50, a support member made of Teflon (registered trademark) may be used as the moving means of the new roof 20. Moreover, the temporary rail 28 and the auxiliary temporary rail 72 may have a stainless steel plate attached to the upper surface. Furthermore, the moving direction of the new roof 20 is not limited to the arrow E direction and the arrow S direction, and may be the arrow N direction and the arrow W direction according to the installation location of the existing roof 106.

また、新設屋根20は、1つずつ移動させるだけでなく、複数の新設屋根20を仮設構台18側で構築すると共に接合してまとめて移動させたり、あるいは、新設屋根20を1つずつ構築しては移動させるというように、順次送り出す工法を用いてもよい。既設屋根16の解体は、新設屋根20が完全に固定された設置状態、新設屋根20が既設屋根16の上側を覆って配置された配置状態のいずれの状態で行ってもよい。   In addition, the new roofs 20 are not only moved one by one, but a plurality of new roofs 20 are constructed on the temporary gantry 18 side and joined together to move, or the new roofs 20 are constructed one by one. Alternatively, it is possible to use a method of sequentially sending out such as moving. The dismantling of the existing roof 16 may be performed either in an installation state in which the new roof 20 is completely fixed or in an arrangement state in which the new roof 20 is disposed so as to cover the upper side of the existing roof 16.

新設屋根20としては、トップライトに限らず、例えば、既設屋根16の高さが低いときに用いる高さが高い屋根であってもよい。また、束材37の設置位置は、大梁34と小梁36の交点でもよい。さらに、第2、第3実施形態の屋根改修工法で太陽光パネル29を設置してもよい。   The new roof 20 is not limited to the toplight, and may be a high roof used when the height of the existing roof 16 is low, for example. Further, the installation position of the bundle member 37 may be an intersection of the large beam 34 and the small beam 36. Furthermore, you may install the solar panel 29 by the roof repair method of 2nd, 3rd embodiment.

10 建物(構造物)
16 既設屋根
18 仮設構台
20 新設屋根
28 仮設レール(移動路)
29 太陽光パネル(機能部材)
30 吊足場(吊り足場)
32 柱(躯体)
34 大梁(躯体)
36 小梁(躯体)
72 補助仮設レール(移動路)
82 仮設構台
103 新設屋根
106 既設屋根
108 吊足場(吊り足場)
10 Building (structure)
16 Existing roof 18 Temporary gantry 20 New roof 28 Temporary rail (movement path)
29 Solar panels (functional components)
30 Suspended scaffold (suspended scaffold)
32 Pillar (Housing)
34 Large beam
36 Small beam (frame)
72 Auxiliary temporary rail (movement path)
82 Temporary gantry 103 New roof 106 Existing roof 108 Suspended scaffold (suspended scaffold)

Claims (6)

既設屋根の上方を覆う新設屋根を配置する新設屋根配置工程と、
前記新設屋根が配置された後で前記既設屋根を解体する既設屋根解体工程と、
を有する屋根改修工法。
A new roof placement process for placing a new roof covering the top of the existing roof;
An existing roof dismantling step of dismantling the existing roof after the new roof is disposed;
Roof refurbishment method.
前記新設屋根配置工程は、
前記新設屋根を構築する新設屋根構築工程と、
前記新設屋根を構築した場所から前記新設屋根を配置する配置場所までの前記新設屋根の移動路を設置する移動路設置工程と、
構築された前記新設屋根を前記移動路を通じて移動させ前記配置場所に配置する新設屋根移動配置工程と、
前記新設屋根を前記配置場所に設置する新設屋根設置工程と、
を有する請求項1に記載の屋根改修工法。
The new roof placement process includes:
A new roof construction process for constructing the new roof;
A moving path installation step of installing a moving path of the new roof from a place where the new roof is constructed to an arrangement place where the new roof is disposed;
A new roof moving arrangement step of moving the constructed new roof through the movement path and arranging the new roof at the arrangement place;
A new roof installation step of installing the new roof at the placement location;
The roof refurbishing method according to claim 1, comprising:
前記新設屋根は、前記移動路上で移動方向を変えながら移動される請求項2に記載の屋根改修工法。   The roof renovation method according to claim 2, wherein the new roof is moved while changing a moving direction on the moving path. 前記移動路上に太陽エネルギーを利用する機能部材を設置する機能部材設置工程を有する請求項2又は請求項3に記載の屋根改修工法。   The roof renovation method according to claim 2 or 3, further comprising a functional member installation step of installing a functional member that uses solar energy on the moving path. 前記既設屋根解体工程は、
前記既設屋根の下側に移動可能な吊り足場を取り付ける足場取付工程と、
前記吊り足場の上で前記既設屋根を解体する解体工程と、
を有する請求項1から請求項4のいずれか1項に記載の屋根改修工法。
The existing roof dismantling process is
A scaffold attachment step of attaching a suspended scaffold movable under the existing roof;
A dismantling step of dismantling the existing roof on the suspension scaffold;
The roof renovation method according to any one of claims 1 to 4, wherein:
請求項1から請求項5のいずれか1項に記載の屋根改修工法で構築された前記新設屋根と、
前記新設屋根が上部に設置された躯体と、
を有する構造物。
The new roof constructed by the roof refurbishment method according to any one of claims 1 to 5,
A housing in which the new roof is installed at the top;
A structure having
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