JP2018035556A - Construction method roof structure - Google Patents

Construction method roof structure Download PDF

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JP2018035556A
JP2018035556A JP2016168848A JP2016168848A JP2018035556A JP 2018035556 A JP2018035556 A JP 2018035556A JP 2016168848 A JP2016168848 A JP 2016168848A JP 2016168848 A JP2016168848 A JP 2016168848A JP 2018035556 A JP2018035556 A JP 2018035556A
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temporary
roof
roof structure
reserve
support portion
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JP6883397B2 (en
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芳裕 阿部
Yoshihiro Abe
芳裕 阿部
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Taisei Corp
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Taisei Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a construction method of a roof structure capable of improving the construction efficiency by reducing the number of stay wires which are provided around a temporary frame.SOLUTION: The construction method of a roof structure includes the steps of: assembling plural temporary frames 30A and 30B on the ground surface 2 (step S2); dividing a part of a roof 10 into plural truss beam units 16 and 17, assembling the plural truss beam units 16 and 17 on the ground, lifting the plural truss beam units 16 and 17 to the upper plane of the temporary frames 30A and 30B, and connecting the plural truss beam units 16 and 17 to each other in the air (steps S3, S4). The temporary frames 30A and 30B include: a support part 31 for supporting the load of the truss beam units 16, 17; and a support 32 which is disposed to the outer periphery beneath the support part 31, and connected to the support part 31.SELECTED DRAWING: Figure 2

Description

本発明は、例えば、大空間を覆う屋根構造体の構築方法に関する。   The present invention relates to a method for constructing a roof structure covering a large space, for example.

従来より、大空間を覆う屋根構造体を構築する際、その屋根構造体を組み立てたり仮支持したりするために、地盤面上に仮設架台を設ける場合がある。
この場合、仮設架台の転倒を防止するため、この仮設架台の上部と仮設架台周囲の地盤との間には、控えワイヤーが展張される。 Conventionally, when a roof structure covering a large space is constructed, a temporary mount may be provided on the ground surface in order to assemble or temporarily support the roof structure.
In this case, in order to prevent the temporary mount from overturning, a reserve wire is extended between the upper portion of the temporary mount and the ground around the temporary mount.

しかしながら、このような控えワイヤーを固定する地盤が仮設架台から離れていると、控えワイヤーが障害物となって、揚重機などの建設車両が仮設架台の近くを走行できず、屋根構造体を施工効率が低下する、という問題があった。   However, if the ground that secures the stand-by wire is away from the temporary mount, the stand-by wire becomes an obstacle, and construction vehicles such as lifting equipment cannot run near the temporary mount, and the roof structure is constructed. There was a problem that efficiency decreased.

そこで、特許文献１のような控えワイヤーの設置方法が提案されている。すなわち、仮設テントの周囲には外部足場が設けられており、外部足場の上端部と地盤面との間には、控えワイヤーが展張されている。この外部足場の上部には張り出し部が設けられ、控えワイヤーは、この張り出し部の先端を通して、外部足場に近接した地盤に固定されている。これにより、揚重機などの建設車両が仮設架台の近くを走行可能となっている。   Then, the installation method of the reserve wire like patent document 1 is proposed. In other words, an external scaffold is provided around the temporary tent, and a reserve wire is extended between the upper end of the external scaffold and the ground surface. An overhang portion is provided on the upper part of the external scaffold, and the holding wire is fixed to the ground close to the external scaffold through the tip of the overhang portion. As a result, a construction vehicle such as a lifting machine can travel near the temporary mount.

また、特許文献２には、大空間の天井仕上げ工事で採用される高所作業用の吊足場が示されている。この吊足場は、地組みされた後、本設梁に取り付けられた吊り上げ設備によって上方に吊り上げられる。   Patent Document 2 discloses a suspended scaffold for high-altitude work employed in ceiling finishing work for large spaces. This suspended scaffold is lifted upward by the lifting equipment attached to the main beam after being grounded.

特開平６−１８５２２２号公報JP-A-6-185222 特開２００１−３２９６８６号公報JP 2001-329686 A

屋根構造体の施工性をより向上させるため、仮設架台の控えワイヤーの本数を削減することが要請されている。   In order to improve the workability of the roof structure, it is required to reduce the number of reserve wires of the temporary mount.

本発明は、仮設架台の周囲に設ける控えワイヤーの本数を削減することで、施工効率を向上できる屋根構造体の構築方法を提供することを目的とする。   An object of this invention is to provide the construction method of the roof structure which can improve construction efficiency by reducing the number of reserve wires provided around a temporary mount.

第１の発明の屋根構造体の構築方法は、屋根構造体（例えば、後述の屋根１０）の構築方法であって、地盤面（例えば、後述の地盤面２）上に複数の仮設架台（例えば、後述の仮設架台３０Ａ、３０Ｂ）を組み立てる工程（例えば、後述のステップＳ２）と、前記屋根構造体の少なくとも一部を複数の屋根ユニット（例えば、後述のトラス梁ユニット１６、１７）に分割して、当該複数の屋根ユニットを地組みして前記仮設架台の上面に揚重し、当該複数の屋根ユニット同士を空中で連結する工程（例えば、後述のステップＳ３、Ｓ４）と、を備え、前記仮設架台は、前記屋根ユニットの荷重を支持する支持部（例えば、後述の支持部３１）と、当該支持部の下側の外周に設けられて当該支持部に連結された補強部（例えば、後述の補強部３２）と、を備えることを特徴とする。   The construction method of the roof structure of the first invention is a construction method of a roof structure (for example, a roof 10 described later), and a plurality of temporary mounts (for example, a ground surface 2 described later) on the ground surface (for example, the ground surface 2 described later). , A process of assembling temporary mounts 30A and 30B (described later) (for example, step S2 described later), and at least part of the roof structure is divided into a plurality of roof units (for example, truss beam units 16 and 17 described later). The plurality of roof units are grounded and lifted on the upper surface of the temporary mount, and the plurality of roof units are connected in the air (for example, steps S3 and S4 described later), The temporary mount includes a support portion (for example, a support portion 31 described later) that supports the load of the roof unit, and a reinforcement portion (for example, described later) that is provided on the lower outer periphery of the support portion and connected to the support portion. Reinforcing part 3 ) And, characterized in that it comprises a.

この発明によれば、支持部の下端側の外周に補強部を設けたので、仮設架台の下端側は上端側よりも水平横断面積が大きくなる。よって、水平抵抗力が大きくなり、地震時の水平荷重に対して高い安全性能を確保できる。
また、支持部の下端側を補強部で補強するので、屋根構造体を構築する際、仮設架台の周囲に設ける控えワイヤーの本数を削減できるため、揚重機などの建設車両が仮設架台の近くを走行可能であり、屋根構造体を効率よく構築できる。 According to this invention, since the reinforcement part was provided in the outer periphery of the lower end side of a support part, the horizontal cross-sectional area becomes large on the lower end side of a temporary mount compared with the upper end side. Accordingly, the horizontal resistance is increased, and high safety performance can be ensured against the horizontal load during an earthquake.
In addition, since the lower end side of the support part is reinforced by the reinforcement part, when constructing the roof structure, the number of reserve wires provided around the temporary installation base can be reduced, so that construction vehicles such as hoisting machines are located near the temporary installation base. It can travel and can efficiently build a roof structure.

第２の発明の屋根構造体の構築方法は、前記補強部は、平面視にて、前記支持部を挟んで略Ｉ字形状に一対配置される、前記支持部を中心として略Ｔ字形状に３つ配置される、あるいは、前記支持部を中心として略十字形状に４つ配置されることを特徴とする。   According to a method for constructing a roof structure body of a second aspect of the invention, the reinforcing portions are arranged in a substantially I shape with the supporting portion interposed therebetween in a plan view, and are substantially T-shaped around the supporting portion. Three are arranged, or four are arranged in a substantially cross shape with the support portion as the center.

この発明によれば、補強部を、支持部の下端側の外周に、Ｉ形状、Ｔ字形状あるいは十字形状に配置した。これにより、仮設架台の水平横断面積が大きくなって、水平抵抗力が増大するので、高い安全性能を確保することができる。   According to the present invention, the reinforcing portion is arranged in an I shape, a T shape, or a cross shape on the outer periphery on the lower end side of the support portion. Thereby, since the horizontal cross-sectional area of a temporary mount frame becomes large and horizontal resistance increases, high safety performance can be ensured.

0
第３の発明の屋根構造体の構築方法は、前記仮設架台の上端部は、控えワイヤー（例えば、後述の控えワイヤー３３）により、地盤面上に敷設された控えウエイト（例えば、後述の控えウエイト３４）に連結されており、当該控えウエイトは、積層されて互いに連結された複数の敷鉄板（例えば、後述の敷鉄板４０）であることを特徴とする。 0
In the construction method of the roof structure according to the third aspect of the invention, the upper end portion of the temporary mounting base is a reserve weight (for example, a later-described reserve weight) laid on the ground surface by a reserve wire (for example, a later-described reserve wire 33). 34), and the reserved weight is a plurality of laid iron plates (for example, a laid iron plate 40 described later) stacked and connected to each other.

この発明によれば、控えワイヤーにより、仮設架台の上端部を控えウエイトに連結した。控えウエイトは、積層化された敷鉄板を重ねたものであり、かなりの重量があることから、各控えワイヤーに高い張力を導入して固定できる。よって、控えワイヤー１本当りの水平抵抗力を増大できるから、控えワイヤーの本数を少なくできる。   According to the present invention, the upper end portion of the temporary mount is connected to the standby weight by the backup wire. The stand-by weight is a stack of laminated iron plates and has a considerable weight, so that it can be fixed by introducing high tension to each stand-by wire. Therefore, since the horizontal resistance force per backup wire can be increased, the number of backup wires can be reduced.

本発明によれば、仮設架台の周囲に設ける控えワイヤーの本数を削減することで、施工効率を向上できる。   According to the present invention, the construction efficiency can be improved by reducing the number of reserve wires provided around the temporary mount.

本発明の一実施形態に係る屋根構造体の構築方法により構築された構造物の平面図である。It is a top view of the structure constructed | assembled by the construction method of the roof structure which concerns on one Embodiment of this invention. 構造物の構築方法のフローチャートである。It is a flowchart of the construction method of a structure. 構造物の構築方法の説明図（その１、仮設架台および控えワイヤーの配置）である。It is explanatory drawing (the 1 and arrangement | positioning of a temporary mount frame and a reserve wire) of the construction method of a structure. 構造物の構築方法の説明図（その２、構築中の縦断面図）である。It is explanatory drawing (the 2 and the longitudinal cross-sectional view under construction) of the construction method of a structure. 構造物の構築方法に用いられる控えウエイトの側面図である。It is a side view of the reserve weight used for the construction method of a structure.

本発明の屋根構造体の構築方法では、屋根ユニットを連結する際、屋根ユニットを支持する支保工でありかつ高所作業ステージとしても用いる仮設架台を、控えワイヤーで支持するのではなく、その仮設架台の下側に補強部を連結して仮設架台の水平抵抗力を増大させることで、控えワイヤーの本数を削減した。本発明の仮設架台では、その周囲に揚重機などの建設作業者を近接して移動することが可能であり、効率的に屋根構造体を構築できる。   In the method for constructing a roof structure according to the present invention, when connecting the roof units, a temporary support that supports the roof units and is also used as an aerial work stage is not temporarily supported by a reserved wire, but is temporarily installed. By connecting a reinforcing part to the underside of the gantry and increasing the horizontal resistance of the temporary gantry, the number of spare wires was reduced. In the temporary mount of the present invention, a construction worker such as a lifting machine can be moved in the vicinity of the temporary mount, and a roof structure can be efficiently constructed.

以下、本発明の一実施形態について、図面を参照しながら説明する。
図１は、本発明の一実施形態に係る屋根構造体の構築方法により構築された構造物１の平面図である。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of a structure 1 constructed by a roof structure construction method according to an embodiment of the present invention.

構造物１は、大空間を覆う平面視で矩形状の屋根構造体としての屋根１０と、地盤面２に設けられてこの屋根１０を支持する複数本の柱２０と、を備える。
屋根１０は、図１中Ｘ方向に延びる６本のトラス梁１１と、図１中Ｙ方向に延びる４本のトラス梁１２と、図１中Ｙ方向に延びてトラス梁１１同士の間に架設された第１小梁１３と、小梁１３同士あるいは小梁１３とトラス梁１２との間に架設された第２小梁１４と、トラス梁１１、１２および小梁１３で囲まれた平面に架設された水平ブレース１５と、トラス梁１１、１２および小梁１３、１４に支持される屋根材（図示省略）と、を備える。 The structure 1 includes a roof 10 as a rectangular roof structure in plan view covering a large space, and a plurality of pillars 20 provided on the ground surface 2 to support the roof 10.
The roof 10 is constructed between six truss beams 11 extending in the X direction in FIG. 1, four truss beams 12 extending in the Y direction in FIG. 1, and between the truss beams 11 extending in the Y direction in FIG. In the plane surrounded by the first beam 13 and the second beam 14 laid between the beam 13 or between the beam 13 and the truss beam 12, the truss beams 11, 12 and the beam 13. An erected horizontal brace 15 and a roof material (not shown) supported by the truss beams 11 and 12 and the small beams 13 and 14 are provided.

柱２０は、屋根１０の周縁の三辺に沿って略コの字形状に並んで配置されている。なお、理解の容易のため、柱２０の位置を、図１中破線で囲んで示す。   The pillars 20 are arranged in a substantially U shape along the three sides of the periphery of the roof 10. For ease of understanding, the position of the pillar 20 is shown surrounded by a broken line in FIG.

以下、構造物１の構築方法について、図２のフローチャートに従い、図３および図４を参照しながら説明する。
図３は、構造物１の構築中の状態を示す平面図である。図４（ａ）は、図３のＡ−Ａ断面図であり、図４（ｂ）は、図３のＢ−Ｂ断面図である。
本実施形態では、図４に示すように、トラス梁１１、１２を、屋根ユニットとしてのトラス梁ユニット１６、１７に分割して、これらトラス梁ユニット１６、１７を地組みし、その後、揚重して空中で連結する。 Hereinafter, the construction method of the structure 1 will be described according to the flowchart of FIG. 2 with reference to FIGS. 3 and 4.
FIG. 3 is a plan view showing a state during construction of the structure 1. 4A is a cross-sectional view taken along the line AA in FIG. 3, and FIG. 4B is a cross-sectional view taken along the line BB in FIG.
In this embodiment, as shown in FIG. 4, the truss beams 11 and 12 are divided into truss beam units 16 and 17 as roof units, and these truss beam units 16 and 17 are grounded and then lifted. And connect in the air.

ステップＳ１では、図４に示すように、柱２０を建て込む。
ステップＳ２では、図３および図４に示すように、地盤面２上に複数の仮設架台３０Ａ、３０Ｂを組み立てる。これら仮設架台３０Ａ、３０Ｂは、トラス梁ユニット１６、１７同士の連結箇所の直下に配置される。 In step S1, the pillar 20 is built as shown in FIG.
In step S2, a plurality of temporary mounts 30A and 30B are assembled on the ground surface 2 as shown in FIGS. These temporary mounts 30A and 30B are arranged directly below the connecting portion between the truss beam units 16 and 17.

仮設架台３０Ａ、３０Ｂは、トラス梁ユニット１６、１７の荷重を支持する支持部３１と、支持部３１の下側の外周に設けられて支持部３１に連結された補強部３２と、を備える。仮設架台３０Ａでは、補強部３２は、平面視にて、支持部３１を中心として略十字形状に配置される。一方、仮設架台３０Ｂでは、補強部３２は、平面視にて、支持部３１を挟んだＩ字形状に一対配置される。   The temporary mounts 30 </ b> A and 30 </ b> B include a support portion 31 that supports the load of the truss beam units 16 and 17, and a reinforcement portion 32 that is provided on the lower outer periphery of the support portion 31 and connected to the support portion 31. In the temporary mount 30A, the reinforcing portion 32 is arranged in a substantially cross shape with the support portion 31 as the center in plan view. On the other hand, in the temporary mount 30B, a pair of reinforcing portions 32 are arranged in an I shape with the support portion 31 interposed therebetween in plan view.

支持部３１および補強部３２は、枠組足場で構成される。仮設架台３０Ａ、３０Ｂは、支持部３１とおよび補強部３２の鉛直部材同士が水平方向に延びるつなぎ材で連結されて構成される。仮設架台３０Ａ、３０Ｂにおいて、補強部３２は、支持部３１の重心３１ａの高さより上方の高さまで設置される。
なお、理解の容易のため、図３および図４中、補強部３２を斜線で示す。 The support part 31 and the reinforcement part 32 are comprised with a frame scaffold. The temporary mounts 30 </ b> A and 30 </ b> B are configured by connecting the vertical members of the support portion 31 and the reinforcing portion 32 with a connecting material extending in the horizontal direction. In the temporary mounts 30 </ b> A and 30 </ b> B, the reinforcing portion 32 is installed to a height above the height of the center of gravity 31 a of the support portion 31.
In addition, in order to understand easily, the reinforcement part 32 is shown by the oblique line in FIG.3 and FIG.4.

このうち、仮設架台３０Ａの上端部は、控えワイヤー３３により、地盤面２上に敷設された控えウエイト３４に連結されている。   Among these, the upper end portion of the temporary mount 30 </ b> A is connected to a standby weight 34 laid on the ground surface 2 by a backup wire 33.

図５は、控えウエイト３４の側面図である。
控えウエイトは、積層された２枚の敷鉄板４０と、敷鉄板４０の四隅に設けられて地盤面２に打ち込まれた鉄筋棒４１と、を備える。敷鉄板４０は、鉄筋棒４１に溶接固定されており、これにより、敷鉄板４０同士が互いに連結されている。
控えワイヤー３３は、キトークリップ４２に固定されており、このキトークリップ４２は、レバーブロック（登録商標）４３に連結されている。さらに、このレバーブロック（登録商標）４３は、シャックル４４を介して、敷鉄板４０の貫通孔４５に連結されている。 FIG. 5 is a side view of the reserve weight 34.
The reserve weight includes two laminated iron plates 40 and reinforcing bars 41 provided at the four corners of the iron plate 40 and driven into the ground surface 2. The laid iron plates 40 are welded and fixed to the reinforcing bar 41, whereby the laid iron plates 40 are connected to each other.
The guide wire 33 is fixed to a Kito clip 42, and the Kito clip 42 is connected to a lever block (registered trademark) 43. Further, the lever block (registered trademark) 43 is connected to the through hole 45 of the laid iron plate 40 through a shackle 44.

ステップＳ３では、トラス梁ユニット１６、１７を地盤面２上で地組みする。
ステップＳ４では、トラス梁ユニット１６、１７を仮設架台３０Ａ、３０Ｂの上面に揚重し、これら複数のトラス梁ユニット１６、１７同士を空中で連結して組み立てる。このとき、図４（ａ）に示すように、揚重機５０が仮設架台３０Ａの近傍を走行可能となっている。
ステップＳ５では、小梁１３、１４、水平ブレース１５および屋根材を取り付ける。
ステップＳ６では、仮設架台３０Ａ、３０Ｂを解体して撤去する。 In step S3, the truss beam units 16, 17 are ground on the ground surface 2.
In step S4, the truss beam units 16 and 17 are lifted on the upper surfaces of the temporary mounts 30A and 30B, and the plurality of truss beam units 16 and 17 are connected and assembled in the air. At this time, as shown in FIG. 4A, the lifting machine 50 can travel in the vicinity of the temporary mount 30A.
In step S5, the small beams 13, 14, the horizontal brace 15 and the roofing material are attached.
In step S6, the temporary mounts 30A and 30B are disassembled and removed.

本実施形態によれば、以下のような効果がある。
（１）支持部３１の下側の外周に補強部３２を設けたので、仮設架台３０Ａ、３０Ｂの下端側は上端側よりも水平横断面積が大きくなる。よって、地盤面２上に設置される仮設架台３０Ａ、３０Ｂの下端側の水平抵抗力を大きくすることで、地震時に水平荷重が仮設架台３０Ａ、３０Ｂに作用しても高い安全性能を確保できる。また、補強部３２の高さを、支持部３１の重心３１ａの高さより高くすることで、仮設架台３０Ａ、３０Ｂの構造安定性を高めることができる。
また、支持部３１の下端側を補強部３２で補強するので、屋根１０を構築する際、仮設架台３０Ａの周囲に設ける控えワイヤー３３の本数を削減できる。また、控えワイヤー３３の架設本数が少なることで、揚重機５０などの建設車両が仮設架台３０Ａの近くを走行可能となり、屋根１０を効率よく構築できる。 According to this embodiment, there are the following effects.
(1) Since the reinforcing part 32 is provided on the outer periphery of the lower side of the support part 31, the horizontal cross-sectional area of the lower end side of the temporary mounts 30A and 30B is larger than that of the upper end side. Therefore, by increasing the horizontal resistance force on the lower end side of the temporary mounts 30A and 30B installed on the ground surface 2, high safety performance can be ensured even if a horizontal load acts on the temporary mounts 30A and 30B during an earthquake. Further, by making the height of the reinforcing portion 32 higher than the height of the center of gravity 31a of the support portion 31, the structural stability of the temporary mounts 30A and 30B can be enhanced.
Moreover, since the lower end side of the support part 31 is reinforced with the reinforcement part 32, when constructing the roof 10, the number of the reserve wires 33 provided around the temporary mount 30A can be reduced. Further, since the number of the standing wires 33 is reduced, a construction vehicle such as the lifting machine 50 can travel near the temporary mount 30A, and the roof 10 can be constructed efficiently.

（２）補強部３２を、支持部３１の下側の外周に、Ｉ形状あるいは十字形状に配置した。これにより、仮設架台３０Ａ、３０Ｂの水平横断面積が大きくなって、水平抵抗力が増大するので、高い安全性能を確保できる。従来では、支持部の自立性を高めるために控えワイヤーを架設していたが、この支持部３１の側面に補強部３２を配置することで、控えワイヤー３３の架設本数を削減できる。   (2) The reinforcing portion 32 is arranged in an I shape or a cross shape on the lower outer periphery of the support portion 31. Thereby, the horizontal cross-sectional areas of the temporary mounts 30A and 30B are increased, and the horizontal resistance is increased, so that high safety performance can be ensured. Conventionally, in order to improve the self-supporting property of the support portion, the reserve wire is installed. However, by arranging the reinforcing portion 32 on the side surface of the support portion 31, the number of the reserve wires 33 can be reduced.

（３）隣接する仮設架台３０Ａの上端部同士を控えワイヤー３３で連結するとともに、この控えワイヤー３３を控えウエイト３４に緊結した。控えウエイト３４は、積層化された敷鉄板４０を重ねたものであり、かなりの重量があることから、各控えワイヤー３３に高い張力を導入して固定できる。よって、控えワイヤー１本当りの水平抵抗力を増大できるから、控えワイヤー３３の本数を少なくできる。   (3) The upper ends of the adjacent temporary mounts 30 </ b> A are connected to each other by a stay wire 33, and the stay wire 33 is fastened to the stay weight 34. The reserve weight 34 is formed by stacking the laminated iron plates 40 and has a considerable weight. Therefore, the reserve weight 34 can be fixed by introducing high tension to each reserve wire 33. Therefore, since the horizontal resistance per one recording wire can be increased, the number of the recording wires 33 can be reduced.

なお、本発明は前記実施形態に限定されるものではなく、本発明の目的を達成できる範囲での変形、改良等は本発明に含まれるものである。
例えば、本実施形態では、補強部３２を、支持部を挟んでＩ字形状に一対配置、あるいは、支持部を中心として略十字形状に４つ配置したが、これに限らず、支持部を中心として略Ｔ字形状に３つ配置してもよい。 It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention.
For example, in the present embodiment, a pair of reinforcing portions 32 are arranged in an I shape with the support portion interposed therebetween, or four in a substantially cross shape with the support portion as the center. However, the present invention is not limited to this, and the support portion is centered. 3 may be arranged in a substantially T shape.

１…構造物 ２…地盤面
１０…屋根（屋根構造体） １１、１２…トラス梁
１３…第１小梁 １４…第２小梁 １５…水平ブレース
１６、１７…トラス梁ユニット（屋根ユニット） ２０…柱
３０Ａ、３０Ｂ…仮設架台 ３１…支持部 ３１ａ…支持部の重心
３２…補強部 ３３…控えワイヤー ３４…控えウエイト
４０…敷鉄板 ４１…鉄筋棒 ４２…キトークリップ ４４…シャックル
４５…貫通孔 ５０…揚重機 DESCRIPTION OF SYMBOLS 1 ... Structure 2 ... Ground surface 10 ... Roof (roof structure) 11, 12 ... Truss beam 13 ... 1st beam 14 ... 2nd beam 15 ... Horizontal brace 16, 17 ... Truss beam unit (roof unit) 20 ... Pillar 30A, 30B ... Temporary mount 31 ... Support part 31a ... Center of gravity of support part 32 ... Reinforcement part 33 ... Reserve wire 34 ... Reserve weight 40 ... Laying iron plate 41 ... Reinforcing bar 42 ... Kito clip 44 ... Shackle 45 ... Through hole 50 ... lifter

第３の発明の屋根構造体の構築方法は、前記仮設架台の上端部は、控えワイヤー（例えば、後述の控えワイヤー３３）により、地盤面上に敷設された控えウエイト（例えば、後述の控えウエイト３４）に連結されており、当該控えウエイトは、積層されて互いに連結された複数の敷鉄板（例えば、後述の敷鉄板４０）であることを特徴とする。 In the construction method of the roof structure according to the third aspect of the invention, the upper end portion of the temporary mounting base is a reserve weight (for example, a later-described reserve weight) laid on the ground surface by a reserve wire (for example, a later-described reserve wire 33). 34), and the reserved weight is a plurality of laid iron plates (for example, a laid iron plate 40 described later) stacked and connected to each other.

本発明の屋根構造体の構築方法では、屋根ユニットを連結する際、屋根ユニットを支持する支保工でありかつ高所作業ステージとしても用いる仮設架台を、控えワイヤーで支持するのではなく、その仮設架台の下側に補強部を連結して仮設架台の水平抵抗力を増大させることで、控えワイヤーの本数を削減した。本発明の仮設架台では、その周囲に揚重機などの建設作業車を近接して移動することが可能であり、効率的に屋根構造体を構築できる。 In the method for constructing a roof structure according to the present invention, when connecting the roof units, a temporary support that supports the roof units and is also used as an aerial work stage is not temporarily supported by a reserved wire, but is temporarily installed. By connecting a reinforcing part to the underside of the gantry and increasing the horizontal resistance of the temporary gantry, the number of spare wires was reduced. In the temporary mount of the present invention, it is possible to move a construction work vehicle such as a lifting machine in the vicinity thereof, and a roof structure can be efficiently constructed.

Claims (3)

屋根構造体の構築方法であって、
地盤面上に複数の仮設架台を組み立てる工程と、
前記屋根構造体の少なくとも一部を複数の屋根ユニットに分割して、当該複数の屋根ユニットを地組みして前記仮設架台の上面に揚重し、当該複数の屋根ユニット同士を空中で連結する工程と、を備え、
前記仮設架台は、前記屋根ユニットの荷重を支持する支持部と、当該支持部の下側の外周に設けられて当該支持部に連結された補強部と、を備えることを特徴とする屋根構造体の構築方法。 A method for constructing a roof structure,
Assembling a plurality of temporary mounts on the ground surface;
Dividing at least a part of the roof structure into a plurality of roof units, assembling the plurality of roof units and lifting them to the upper surface of the temporary mount, and connecting the plurality of roof units in the air And comprising
The temporary mount includes a support part that supports the load of the roof unit, and a reinforcement part that is provided on the outer periphery of the lower side of the support part and connected to the support part. How to build. 前記補強部は、平面視にて、前記支持部を挟んで略Ｉ字形状に一対配置される、前記支持部を中心として略Ｔ字形状に３つ配置される、あるいは、前記支持部を中心として略十字形状に４つ配置されることを特徴とする請求項１に記載の屋根構造体の構築方法。   In the plan view, the reinforcing portions are arranged in a pair in a substantially I shape with the support portion interposed therebetween, or are arranged in a substantially T shape centering on the support portion, or centered on the support portion. The method for constructing a roof structure according to claim 1, wherein four are arranged in a substantially cross shape. 前記仮設架台の上端部は、控えワイヤーにより、地盤面上に敷設された控えウエイトに連結されており、
当該控えウエイトは、積層されて互いに連結された複数の敷鉄板であることを特徴とする請求項１または２に記載の屋根構造体の構築方法。 The upper end portion of the temporary mount is connected to a standby weight laid on the ground surface by a backup wire,
The construction method of the roof structure according to claim 1 or 2, wherein the reserve weight is a plurality of laid iron plates that are stacked and connected to each other.
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