JP7041463B2 - How to build a building - Google Patents

How to build a building Download PDF

Info

Publication number
JP7041463B2
JP7041463B2 JP2016243905A JP2016243905A JP7041463B2 JP 7041463 B2 JP7041463 B2 JP 7041463B2 JP 2016243905 A JP2016243905 A JP 2016243905A JP 2016243905 A JP2016243905 A JP 2016243905A JP 7041463 B2 JP7041463 B2 JP 7041463B2
Authority
JP
Japan
Prior art keywords
frame
truss frame
building
steel
slab
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2016243905A
Other languages
Japanese (ja)
Other versions
JP2018096163A (en
Inventor
昇 落合
俊介 内馬場
一矢 山内
由侑 頴川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taisei Corp
Original Assignee
Taisei Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Taisei Corp filed Critical Taisei Corp
Priority to JP2016243905A priority Critical patent/JP7041463B2/en
Publication of JP2018096163A publication Critical patent/JP2018096163A/en
Application granted granted Critical
Publication of JP7041463B2 publication Critical patent/JP7041463B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Description

本発明は、吹き抜け空間を覆う吹き抜け部を有する建物の構築方法に関する。 The present invention relates to a method for constructing a building having a stairwell portion that covers the stairwell space.

従来より、吹き抜け空間を覆う吹き抜け部を有する建物がある。このような吹き抜け部の構造体は、例えば、複数の層を有するトラス架構体と、当該トラス架構体を支持する複数の本設柱と、前記トラス架構体の各層に構築された鉄筋コンクリート造の床スラブと、トラス架構体の下面の軒天部分に取り付けられたプレキャストコンクリート版(PCa版)と、を備える。 Conventionally, some buildings have a stairwell that covers the stairwell space. The structure of such a stairwell includes, for example, a truss frame having a plurality of layers, a plurality of main pillars supporting the truss frame, and a reinforced concrete floor constructed in each layer of the truss frame. It includes a slab and a precast concrete plate (PCa plate) attached to the eaves of the lower surface of the truss frame.

特許文献1には、鉄骨造の建築物躯体の施工方法が示されている。具体的には、鉄骨柱の建方を行い、最上階の屋根梁および仮設梁を取り付ける。その後、最上階から下方に向かってスラブを構築する。 Patent Document 1 discloses a method of constructing a steel-framed building frame. Specifically, the steel columns will be constructed and the roof beams and temporary beams on the top floor will be installed. After that, build a slab from the top floor to the bottom.

特許文献2には、トンネル内の上部に床版を取り付けるトンネル用床版取付装置が示されている。トンネル用床版取付装置は、トンネルに沿って走行する門型の走行フレームにと、この走行フレームに設けられたブラケット保持機構と、走行フレームに設けられて床版を吊り支持して昇降させる床版搬送機構と、を備える。 Patent Document 2 discloses a tunnel deck mounting device that mounts a deck on the upper part of a tunnel. The floor slab mounting device for tunnels includes a gate-shaped traveling frame that travels along the tunnel, a bracket holding mechanism provided on the traveling frame, and a floor provided on the traveling frame that suspends and supports the deck. It is equipped with a plate transfer mechanism.

特開平1-256636号公報Japanese Unexamined Patent Publication No. 1-256636 特開平10-115192号公報Japanese Unexamined Patent Publication No. 10-115192

PCa版の重量は1枚約2tであり、このPCa版をトラス架構体の一端側から順番に取り付けていく場合、取り付けたPCa版がトラス架構体に偏心荷重として作用し、トラス架構体に大きな変形が生じるおそれがあった。 The weight of the PCa plate is about 2 tons per sheet, and when this PCa plate is attached in order from one end side of the truss frame, the attached PCa plate acts as an eccentric load on the truss frame and is large on the truss frame. There was a risk of deformation.

本発明は、鉄骨造架構体の軒天部分にプレキャストコンクリート版を取り付けた際に、鉄骨造架構体に大きな変形が生じるのを防止できる、建物の構築方法を提供することを目的とする。 An object of the present invention is to provide a method for constructing a building that can prevent a large deformation of the steel frame frame when a precast concrete slab is attached to the eaves portion of the steel frame structure.

本発明者らは、吹き抜け空間の軒天部分にプレキャストコンクリート版が取り付けられる鉄骨造建物の構築方法として、鉄骨造架構体の軒天部分にPCa版を取り付けた後、下方階側から上層階に向って鉄骨造建物を構築していくのではなく、先ず、軒天部分にPCa版を取り付けることなく、本設柱や仮設構台を構築し、その上に鉄骨造架構体を架設する。その後、鉄骨造架構体のスラブ部分に床コンクリートを現場打設して、軸剛性が高められた床スラブ付き鉄骨造架構体を先行して構築した後、当該床スラブ付き鉄骨造架構体に下方から軒天PCa版を取り付けて鉄骨造建物を構築することで、鉄骨造架構体に過大な偏心変位を生じさせずにPCa版を取り付けることができる点に着目し、本発明に至った。 As a method of constructing a steel-framed building in which a precast concrete plate is attached to the eaves portion of the atrium space, the present inventors attach the PCa plate to the eaves portion of the steel frame structure and then from the lower floor side to the upper floor. Instead of constructing a steel-framed building toward it, first, without attaching a PCa plate to the eaves, a main pillar or a temporary frame is constructed, and a steel-framed frame is erected on it. After that, floor concrete is cast on-site in the slab part of the steel frame frame to construct a steel frame structure with a floor slab with increased axial rigidity in advance, and then downward to the steel frame structure with a floor slab. The present invention was made by paying attention to the fact that the PCa plate can be attached without causing excessive eccentric displacement in the steel frame frame by constructing the steel-framed building by attaching the eaves PCa plate.

第1の発明の建物の構築方法は、吹き抜け空間を覆う吹き抜け部(例えば、後述の吹き抜け部3)を有する建物(例えば、後述の建物1)の構築方法であって、当該吹き抜け部の構造体(例えば、後述の構造体10)は、複数の層を有する鉄骨造架構体(例えば、後述のトラス架構体11)と、当該鉄骨造架構体を支持する複数の本設柱(例えば、後述の本設柱12)と、前記鉄骨造架構体の下面に取り付けられたプレキャストコンクリート版(例えば、後述の軒天プレキャストコンクリート版30)と、前記鉄骨造架構体の各層に構築された鉄筋コンクリート造の床スラブ(例えば、後述の床スラブ13)と、を備え、前記吹き抜け空間に前記本設柱を建て込む工程(例えば、後述のステップS1、S2)と、前記鉄骨造架構体を構築して前記本設柱で支持する工程(例えば、後述のステップS3)と、前記鉄骨造架構体の下から二層目の床スラブについて、コンクリートを打設して構築し、その後、上層に向かって順次、コンクリートを打設することで各層の床スラブを構築する工程(例えば、後述のステップS6)と、前記鉄骨造架構体の下面に、前記プレキャストコンクリート版を下方から持ち上げて取り付ける工程(例えば、後述のステップS7)と、を含むことを特徴とする。 The method for constructing a building according to the first invention is a method for constructing a building (for example, a building 1 described later) having a stairwell portion (for example, a stairwell portion 3 described later) covering the stairwell space, and the structure of the stairwell portion. (For example, the structure 10 described later) includes a steel frame structure having a plurality of layers (for example, a truss frame structure 11 described later) and a plurality of main columns supporting the steel frame structure (for example, described later). The main pillar 12), the precast concrete slab attached to the lower surface of the steel frame structure (for example, the eaves precast concrete slab 30 described later), and the reinforced concrete floor constructed in each layer of the steel frame structure. The book is provided with a slab (for example, a floor slab 13 described later), a step of building the main pillar in the atrium space (for example, steps S1 and S2 described later), and a steel frame structure being constructed. For the step of supporting by the pillars (for example, step S3 described later) and the floor slab of the second layer from the bottom of the steel frame structure, concrete is poured and constructed, and then concrete is sequentially constructed toward the upper layer. A step of constructing a floor slab of each layer (for example, step S6 described later) and a step of lifting the precast concrete slab from below and attaching it to the lower surface of the steel frame frame (for example, a step described later). It is characterized by including S7) and.

本設柱の本数が少ない場合には、吹き抜け空間となる箇所に仮設構台(例えば、後述のベント40A、40B)を架設し、当該仮設構台と本設柱で鉄骨造架構体を支持してもよい。 If the number of main columns is small, a temporary frame (for example, vents 40A and 40B described later) may be erected in a place that will be a stairwell space, and the steel frame structure may be supported by the temporary frame and the main columns. good.

この発明によれば、吹き抜け空間を覆う鉄骨造架構体について、まず、下から二層目以上の床スラブを現場で配筋してコンクリートを打設して構築する。このように、各層の床コンクリートを打設することで、鉄骨造架構体の全面に均等に鉛直荷重をかけて、鉄骨造架構体の軸剛性を確保しておく。次に、鉄骨造架構体の下面の軒天部分に、重量物であるプレキャストコンクリート版(PCa版)を鉄骨造架構体の一端側から順番に取り付けていく。このとき、PCa版が鉄骨造架構体に偏心荷重となって作用するが、鉄骨造架構体の鉛直軸剛性が既に確保されているので、鉄骨造架構体に大きな変形が生じるのを防止して、吹き抜け空間を有する建物を効率的に構築できる。 According to the present invention, with respect to the steel frame structure covering the atrium space, first, a floor slab having a second layer or more from the bottom is arranged at the site and concrete is cast to construct the structure. By placing the floor concrete of each layer in this way, a vertical load is evenly applied to the entire surface of the steel frame structure to ensure the axial rigidity of the steel frame structure. Next, a heavy precast concrete plate (PCa plate) is attached to the eaves portion of the lower surface of the steel frame frame in order from one end side of the steel frame structure. At this time, the PCa plate acts as an eccentric load on the steel frame structure, but since the vertical axial rigidity of the steel frame structure has already been secured, it is possible to prevent large deformation of the steel frame structure. , A building with a stairwell space can be constructed efficiently.

第2の発明の建物の構築方法は、前記プレキャストコンクリート版を取り付ける工程では、高所作業車(例えば、後述の高所作業車45)のブーム先端の作業ステージ(例えば、後述の作業ステージ46)上に緩衝材(例えば、後述の発泡ブロック体47)を固定しておき、当該緩衝材の上面に前記プレキャストコンクリート版を仮固定する工程と、当該プレキャストコンクリート版の取付位置まで前記作業ステージを上昇させて、当該プレキャストコンクリート版を下方から持ち上げて前記鉄骨造架構体の下面に取り付ける工程と、を含むことを特徴とする。 In the method of constructing the building of the second invention, in the step of attaching the precast concrete slab, the work stage at the tip of the boom of the high-altitude work vehicle (for example, the high-altitude work vehicle 45 described later) (for example, the work stage 46 described later). A step of fixing a cushioning material (for example, a foam block body 47 described later) on the cushioning material and temporarily fixing the precast concrete slab to the upper surface of the cushioning material, and raising the work stage to the mounting position of the precast concrete slab. It is characterized by including a step of lifting the precast concrete slab from below and attaching it to the lower surface of the steel frame structure.

この発明によれば、高所作業車のブーム先端の作業ステージ上にプレキャストコンクリート版を仮固定した後、このプレキャストコンクリート版を下方から持ち上げて鉄骨造架構体の下面の軒天部分に取り付ける。よって、プレキャストコンクリート版を短時間で広範囲に取り付けることができる。 According to the present invention, after temporarily fixing the precast concrete slab on the work stage at the tip of the boom of the aerial work platform, the precast concrete slab is lifted from below and attached to the eaves portion of the lower surface of the steel frame structure. Therefore, the precast concrete slab can be attached over a wide area in a short time.

第3の発明の建物の構築方法は、前記鉄骨造架構体を構築する工程では、前記吹き抜け空間となる箇所に架設した仮設構台と前記鉄骨造架構体との間にジャッキ(例えば、後述のジャッキ41)を配置して、前記本設柱の外周面および前記仮設構台上にて鉛直方向の変位を計測し、当該変位が許容値以下になるように、前記ジャッキを駆動して前記鉄骨造架構体の高さ位置を調整することを特徴とする。 In the process of constructing the steel frame frame, the method of constructing the building of the third invention is a jack (for example, a jack described later) between the temporary frame erected in the atrium space and the steel frame structure. 41) is arranged, the displacement in the vertical direction is measured on the outer peripheral surface of the main column and the temporary frame, and the jack is driven so that the displacement is equal to or less than the allowable value. It is characterized by adjusting the height position of the body.

この発明によれば、本設柱の外周面および仮設構台上にて鉛直方向の変位を計測し、この変位が許容値以下になるように、ジャッキを駆動して鉄骨造架構体の高さ位置を調整するので、吹き抜け空間を覆う構造体を高精度で構築できる。 According to the present invention, vertical displacement is measured on the outer peripheral surface of the main column and on the temporary frame, and the jack is driven so that the displacement is equal to or less than the allowable value, and the height position of the steel frame structure is set. Therefore, it is possible to construct a structure that covers the atrium space with high accuracy.

本発明によれば、鉄骨造架構体の軒天部分にプレキャストコンクリート版を取り付けた際に、鉄骨造架構体に大きな変形が生じるのを防止できる。 According to the present invention, when the precast concrete slab is attached to the eaves portion of the steel frame structure, it is possible to prevent the steel frame structure from being significantly deformed.

本発明の一実施形態に係る建物の構築方法により構築される建物の吹き抜け部の縦断面図である。It is a vertical sectional view of the atrium part of a building constructed by the building construction method which concerns on one Embodiment of this invention. 前記吹き抜け部の上に設ける鉄骨造架構体の平面図である。It is a top view of the steel frame structure provided on the atrium. 図2のA-A断面図である。FIG. 2 is a cross-sectional view taken along the line AA of FIG. 前記吹き抜け部の構造体を構築する手順のフローチャートである。It is a flowchart of the procedure for constructing the structure of the atrium. 前記吹き抜け部の構造体の構築手順の説明図(その1、鉄骨造架構体の構築方法)である。It is explanatory drawing of the construction procedure of the structure of the atrium (the first, the construction method of the steel frame structure). 前記吹き抜け部の構造体の構築手順の説明図(その2、軒天PC版の取付方法)である。It is explanatory drawing (2, mounting method of the eaves heaven PC version) of the construction procedure of the structure of the atrium part. 前記鉄骨造架構体にPCa版を取り付けている状態の側面図である。It is a side view of the state where the PCa plate is attached to the steel frame structure. 前記鉄骨造架構体にPCa版を取り付けている状態の平面図である。It is a top view of the state where the PCa plate is attached to the steel frame structure.

本発明は、吹き抜け空間の軒天部分にPCa版が取り付けられる鉄骨造建物の構築方法として、吹き抜け空間の上方側に、床スラブ付きの鉄骨造架構体を先行して架設した後、その鉄骨造架構体に下方から軒天PCa版を取り付けて鉄骨造建物を構築するものである。具体的には、スラブ部分に床コンクリートが現場打設された床スラブ付き鉄骨造架構体は、床スラブ無しの鉄骨造架構体に比べて、高い軸剛性を有し、軒天部分に1枚当たり2ton程の重量を有するPCa版を取り付けていく作業工程においても、鉄骨造架構体に過大な偏心変位を生じさせずにPCa版を取付けることができる。 The present invention is a method for constructing a steel-framed building in which a PCa plate is attached to the eaves portion of the atrium space. A steel-framed building is constructed by attaching the eaves PCa version to the frame from below. Specifically, the steel frame frame with floor slabs in which floor concrete is cast on site in the slab part has higher axial rigidity than the steel frame frame structure without floor slabs, and one piece in the eaves part. Even in the work process of attaching the PCa plate having a weight of about 2 tons per unit, the PCa plate can be attached without causing an excessive eccentric displacement in the steel frame structure.

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建物の構築方法により構築される建物1の吹き抜け部3の縦断面図である。
建物1は、高層建物である建物本体2(図2参照)と、この建物本体2に連結された4階から7階までの4層を有する吹き抜け部3と、を有する。
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a vertical sectional view of a stairwell portion 3 of a building 1 constructed by the method of constructing a building according to an embodiment of the present invention.
The building 1 has a building main body 2 (see FIG. 2) which is a high-rise building, and a stairwell portion 3 having four floors from the fourth floor to the seventh floor connected to the building main body 2.

吹き抜け部3の構造体10は、鉄骨造の鉄骨造架構体としてのトラス架構体11と、トラス架構体11を支持する複数の本設柱12と、トラス架構体11の各層に設けられた床スラブ13と、トラス架構体11の下面に形成された軒天部14と、を備える。
なお、本実施形態では、鉄骨造架構体をトラス架構体11としたが、これに限らず、柱梁架構体としてもよい。
The structure 10 of the atrium 3 includes a truss frame 11 as a steel frame structure, a plurality of main pillars 12 supporting the truss frame 11, and floors provided in each layer of the truss frame 11. A slab 13 and an eaves top 14 formed on the lower surface of the truss frame 11 are provided.
In the present embodiment, the steel frame frame is the truss frame 11, but the present invention is not limited to this, and a column-beam frame may be used.

図2は、トラス架構体11の4階床レベルの平面図である。図3は、図2のA-A断面図である。なお、図2および図3は、トラス架構体11を後述のベント40A、40B上に架設した状態を示す。
トラス架構体11は、各層で略水平に延びる互いに略平行な一対の大梁20と、これら大梁20に接合された複数の小梁21と、上下の大梁20同士を連結する柱22およびブレース23と、を備える。
FIG. 2 is a plan view of the truss frame 11 at the fourth floor level. FIG. 3 is a sectional view taken along the line AA of FIG. 2 and 3 show a state in which the truss frame 11 is erected on the vents 40A and 40B described later.
The truss frame 11 includes a pair of girders 20 that extend substantially horizontally in each layer and are substantially parallel to each other, a plurality of girders 21 joined to these girders 20, columns 22 and braces 23 that connect the upper and lower girders 20 to each other. , Equipped with.

以下、吹き抜け部3の構造体10を構築する手順について、図4のフローチャートを参照しながら説明する。
ステップS1では、図2、図3および図5に示すように、吹き抜け空間となる箇所に仮設構台としてのベント40A、40Bを架設する。ベント40A、40Bは、トラス架構体11の柱22の直下に配置され、ベント40A、40Bの上端には、ジャッキ41が設けられる。ここで、ベント40Aは、トラス架構体11の鉄骨建方時の水平力を負担しないベントであり、ベント40Bは、トラス架構体11の鉄骨建方時の水平力を負担するベントである。
Hereinafter, the procedure for constructing the structure 10 of the atrium 3 will be described with reference to the flowchart of FIG.
In step S1, as shown in FIGS. 2, 3 and 5, vents 40A and 40B as temporary gantry are erected at locations serving as a stairwell space. The vents 40A and 40B are arranged directly below the pillar 22 of the truss frame 11, and a jack 41 is provided at the upper ends of the vents 40A and 40B. Here, the vent 40A is a vent that does not bear the horizontal force when the truss frame 11 is constructed, and the vent 40B is a vent that bears the horizontal force when the truss frame 11 is constructed.

ステップS2では、図5に示すように、地中に柱基礎15を構築し、この柱基礎15上に本設柱12を建て込む。 In step S2, as shown in FIG. 5, a pillar foundation 15 is constructed in the ground, and a main pillar 12 is built on the pillar foundation 15.

ステップS3では、トラス架構体11の鉄骨建方を行う。このとき、トラス架構体11を本設柱12およびベント40A、40Bで支持する。これにより、ベント40A、40Bとトラス架構体11との間に、ジャッキ41が配置される。 In step S3, the steel frame of the truss frame 11 is constructed. At this time, the truss frame 11 is supported by the main columns 12 and the vents 40A and 40B. As a result, the jack 41 is arranged between the vents 40A and 40B and the truss frame 11.

このトラス架構体11の鉄骨建方を行う際、本設柱12の外周面にひずみゲージ43を取り付けて、本設柱12に作用する鉛直荷重および鉛直方向の変位を計測する。また、所定のベント40A、40Bにひずみ計44を取り付けて、所定のベント40A、40Bに本設柱12に作用する鉛直荷重および鉛直方向の変位を計測する。 When constructing the steel frame of the truss frame 11, a strain gauge 43 is attached to the outer peripheral surface of the main column 12 to measure the vertical load acting on the main column 12 and the displacement in the vertical direction. Further, a strain gauge 44 is attached to the predetermined vents 40A and 40B to measure the vertical load acting on the main pillar 12 and the displacement in the vertical direction to the predetermined vents 40A and 40B.

図2および図3中、ひずみゲージ43の位置を四角形で表し、ひずみ計44の位置を丸で表す。
そして、本設柱12および所定のベント40A、40Bの鉛直方向の変位が許容値以下になるように、ジャッキ41を駆動してトラス架構体11の高さ位置を調整する。
また、本設柱12および所定のベント40A、40Bで計測した鉛直荷重を確認して、トラス架構が成立していることを確認する。
In FIGS. 2 and 3, the position of the strain gauge 43 is represented by a quadrangle, and the position of the strain gauge 44 is represented by a circle.
Then, the jack 41 is driven to adjust the height position of the truss frame 11 so that the vertical displacements of the main pillar 12 and the predetermined vents 40A and 40B are equal to or less than the allowable value.
Further, the vertical load measured by the main column 12 and the predetermined vents 40A and 40B is confirmed, and it is confirmed that the truss frame is established.

ステップS4では、図6に示すように、ジャッキ41をジャッキダウンして、ベント40A、40Bによるトラス架構体11の支持を解除し、ベント40A、40Bを解体する。
ステップS5では、図6に示すように、トラス架構体11を囲むように外部足場42を架設する。
In step S4, as shown in FIG. 6, the jack 41 is jacked down, the support of the truss frame 11 by the vents 40A and 40B is released, and the vents 40A and 40B are disassembled.
In step S5, as shown in FIG. 6, the external scaffold 42 is erected so as to surround the truss frame 11.

ステップS6では、図6に示すように、トラス架構体11の下から二層目の床スラブ13を構築し、その後、上層に向かって順次、各層の床スラブ13を構築する。 In step S6, as shown in FIG. 6, the floor slab 13 of the second layer from the bottom of the truss frame 11 is constructed, and then the floor slab 13 of each layer is sequentially constructed toward the upper layer.

ここで、各階の床スラブ13のうち大梁20同士の間の部分は、現場でデッキプレートを敷設して、このデッキプレート上に配筋してコンクリートを打設することで構築される、現場打ち床スラブ131である。一方、各階の床スラブ13のうち大梁20よりも外側の部分は、工場で予め製作したプレキャストコンクリート部材である床プレキャストコンクリート版(床PCa版)132である。 Here, the part of the floor slab 13 on each floor between the girders 20 is constructed by laying a deck plate at the site, arranging reinforcements on the deck plate, and placing concrete on the deck plate. The floor slab 131. On the other hand, the portion of the floor slab 13 on each floor outside the girder 20 is a floor precast concrete slab (floor PCa slab) 132, which is a precast concrete member manufactured in advance at the factory.

具体的には、まず、4階の床PCa版132を取り付ける。次に、5階の床PCa版132を取り付けて、その後、5階の現場打ち床スラブ131を構築する。次に、6階の床PCa版132を取り付けて、その後、6階の現場打ち床スラブ131を構築する。次に、7階の床PCa版132を取り付けて、その後、7階の現場打ち床スラブ131を構築する。 Specifically, first, the floor PCa version 132 on the 4th floor is attached. Next, the floor PCa version 132 on the 5th floor is attached, and then the on-site floor slab 131 on the 5th floor is constructed. Next, the floor PCa version 132 on the 6th floor is attached, and then the on-site floor slab 131 on the 6th floor is constructed. Next, the floor PCa version 132 on the 7th floor is attached, and then the on-site floor slab 131 on the 7th floor is constructed.

ステップS7では、図6に示すように、トラス架構体の下面の軒天部14を構築する。この軒天部14は、工場で予め製作した軒天プレキャストコンクリート版(軒天PCa版)30を複数枚取り付けることで構築されている。
具体的には、図7および図8にも示すように、高所作業車45のブーム先端の作業ステージ46上に緩衝材としての発泡ブロック体47をベルト48で固定しておき、さらに、発泡ブロック体47の上面に軒天PCa版30をベルト48で仮固定する。次に、軒天PCa版30の取付位置まで作業ステージ46を上昇させて、軒天PCa版30を下方から持ち上げてトラス架構体11の下面に取り付ける。
In step S7, as shown in FIG. 6, the eaves top 14 on the lower surface of the truss frame is constructed. The eaves ceiling portion 14 is constructed by attaching a plurality of eaves ceiling precast concrete plates (eaves ceiling PCa plates) 30 manufactured in advance at the factory.
Specifically, as shown in FIGS. 7 and 8, a foam block body 47 as a cushioning material is fixed on the work stage 46 at the tip of the boom of the aerial work platform 45 with a belt 48, and further foamed. The eaves PCa plate 30 is temporarily fixed to the upper surface of the block body 47 with a belt 48. Next, the work stage 46 is raised to the mounting position of the eaves PCa plate 30, and the eaves PCa plate 30 is lifted from below and mounted on the lower surface of the truss frame 11.

ステップS8では、トラス架構体11の最下層の床スラブ13を構築する。具体的には、4階の現場打ち床スラブ131を構築する。 In step S8, the floor slab 13 at the bottom layer of the truss frame 11 is constructed. Specifically, the on-site floor slab 131 on the 4th floor will be constructed.

本実施形態では、図4に示すように、吹き抜け空間となる個所にベント40A、40Bを架設するとともに、本設柱12を建て込んだ後、トラス架構体11を本設柱12とベント40A、40Bとで支持したが、これに限らず、ベント40A、40Bを設けずに、本設柱12のみでトラス架構体を支持してもよい。 In the present embodiment, as shown in FIG. 4, the vents 40A and 40B are erected in the atrium space, and after the main pillar 12 is built, the truss frame 11 is mounted on the main pillar 12 and the vent 40A. The truss frame is supported by 40B, but the present invention is not limited to this, and the truss frame may be supported only by the main column 12 without providing the vents 40A and 40B.

本実施形態によれば、以下のような効果がある。
(1)吹き抜け空間を覆うトラス架構体11について、まず、下から二層目以上の現場打ち床スラブ131を現場で配筋してコンクリートを打設することで構築する。このように、各層に床コンクリートを短時間に打設していくことで、トラス架構体11の全面に均等に鉛直荷重をかけて、鉄骨造であるトラス架構体11の軸剛性を増大させる。次に、トラス架構体11の下面の軒天部分に、重量物である軒天PCa版30をトラス架構体11の一端側から順番に取り付けていく。このとき、軒天PCa版30がトラス架構体11に偏心荷重となって作用するが、トラス架構体11の鉛直軸剛性が高められているので、トラス架構体11に大きな変形が生じるのを防止して、吹き抜け空間を有する建物1を効率的に構築できる。
According to this embodiment, there are the following effects.
(1) The truss frame 11 covering the atrium space is first constructed by arranging on-site floor slabs 131 having a second layer or more from the bottom on-site and placing concrete on the site. In this way, by placing floor concrete in each layer in a short time, a vertical load is evenly applied to the entire surface of the truss frame 11, and the axial rigidity of the steel frame structure 11 is increased. Next, the heavy eaves PCa plate 30 is attached to the eaves portion on the lower surface of the truss frame 11 in order from one end side of the truss frame 11. At this time, the eaves PCa version 30 acts as an eccentric load on the truss frame 11, but since the vertical axis rigidity of the truss frame 11 is increased, it is possible to prevent the truss frame 11 from being greatly deformed. Therefore, the building 1 having the atrium space can be efficiently constructed.

(2)高所作業車45のブーム先端の作業ステージ46上に軒天PCa版30を仮固定した後、この軒天PCa版30を下方から持ち上げてトラス架構体11の下面の軒天部分に取り付ける。よって、軒天PCa版30を短時間で広範囲に取り付けることができる。 (2) After temporarily fixing the eaves PCa plate 30 on the work stage 46 at the tip of the boom of the aerial work platform 45, the eaves PCa plate 30 is lifted from below to the eaves portion on the lower surface of the truss frame 11. Install. Therefore, the eaves PCa version 30 can be attached to a wide range in a short time.

(3)本設柱12の外周面およびベント40A、40B上にて、ひずみゲージ43およびひずみ計44により鉛直方向の変位を計測し、この変位が許容値以下になるように、ジャッキ41を駆動してトラス架構体11の高さ位置を調整することで、先行して構築するトラス架構体11の据え付け精度を管理した上で、吹き抜け空間を覆う吹き抜け部3の構造体10を高精度で構築できる。 (3) The displacement in the vertical direction is measured by the strain gauge 43 and the strain gauge 44 on the outer peripheral surface of the main column 12 and the vents 40A and 40B, and the jack 41 is driven so that the displacement is equal to or less than the allowable value. By adjusting the height position of the truss frame 11, the installation accuracy of the truss frame 11 to be constructed in advance is controlled, and then the structure 10 of the atrium 3 covering the atrium space is constructed with high accuracy. can.

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、上述の実施形態では、吹き抜け空間を、図1に示すように外部空間に接する構造としたが、これに限らず、建物の内部に設けてもよい。つまり、本実施形態では、吹き抜け空間を覆う吹き抜け部3の軒天部分に軒天PCa版30を取り付けたが、これに限らず、建物内部の吹き抜け空間の天井部分にPCa版を取り付けてもよい。
また、本実施形態では、建物を鉄骨造としたが、これに限らず、鉄筋コンクリート造であってもよい。
The present invention is not limited to the above-described embodiment, and modifications, improvements, and the like to the extent that the object of the present invention can be achieved are included in the present invention.
For example, in the above-described embodiment, the atrium space has a structure in contact with the external space as shown in FIG. 1, but the present invention is not limited to this, and the atrium space may be provided inside the building. That is, in the present embodiment, the eaves ceiling PCa plate 30 is attached to the eaves ceiling portion of the atrium portion 3 that covers the atrium space, but the present invention is not limited to this, and the PCa plate may be attached to the ceiling portion of the atrium space inside the building. ..
Further, in the present embodiment, the building is made of steel, but the building is not limited to this and may be made of reinforced concrete.

1…建物 2…建物本体 3…吹き抜け部
10…構造体 11…トラス架構体(鉄骨造架構体) 12…本設柱 13…床スラブ
14…軒天部 15…柱基礎
20…大梁 21…小梁 22…柱 23…ブレース
30…軒天プレキャストコンクリート版
40A、40B…ベント(仮設構台) 41…ジャッキ 42…外部足場
43…ひずみゲージ 44…ひずみ計
45…高所作業車 46…作業ステージ 47…発泡ブロック体(緩衝材)
48…ベルト
131…現場打ち床スラブ 132…床プレキャストコンクリート版
1 ... Building 2 ... Building body 3 ... Atrium 10 ... Structure 11 ... Truss frame (steel frame frame) 12 ... Main pillar 13 ... Floor slab 14 ... Eaves top 15 ... Pillar foundation 20 ... Girder 21 ... Small Beam 22 ... Pillar 23 ... Brace 30 ... Eaves precast concrete plate 40A, 40B ... Vent (temporary frame) 41 ... Jack 42 ... External scaffolding 43 ... Strain gauge 44 ... Strain meter 45 ... High-altitude work vehicle 46 ... Work stage 47 ... Foam block body (buffer material)
48 ... Belt 131 ... On-site floor slab 132 ... Floor precast concrete slab

Claims (2)

吹き抜け空間を覆う吹き抜け部を有する鉄骨造の建物の構築方法であって、
当該吹き抜け部の構造体は、複数の層を有する鉄骨造のトラス架構体と、当該トラス架構体を支持する複数の本設柱と、前記トラス架構体の下面に取り付けられたプレキャストコンクリート版と、前記トラス架構体の各層に構築された鉄筋コンクリート造の床スラブと、を備え、
前記吹き抜け空間に前記本設柱を建て込むとともに、平面視で前記本設柱とは異なる位置にベントを架設する工程と、
前記本設柱および前記ベント上で前記トラス架構体の鉄骨建方を行い、前記トラス架構体の鉄骨建方が完了した後、前記ベントによる前記トラス架構体の支持を解除して、前記トラス架構体を前記本設柱で支持する工程と、
前記トラス架構体の下から二層目の床スラブについて、コンクリートを打設して構築し、その後、上層に向かって順次、コンクリートを打設することで各層の床スラブを構築する工程と、
前記トラス架構体の最下面に、前記プレキャストコンクリート版を下方から持ち上げて取り付けて軒天部を構築する工程と、
前記トラス架構体の最下層の床スラブを構築する工程と、を含み、
前記プレキャストコンクリート版を取り付ける工程では、
高所作業車のブーム先端の作業ステージ上に緩衝材を固定しておき、当該緩衝材の上面に前記プレキャストコンクリート版を仮固定する工程と、
当該プレキャストコンクリート版の取付位置まで前記作業ステージを上昇させて、当該プレキャストコンクリート版を下方から持ち上げて前記トラス架構体の最下面に取り付けて、前記軒天部を構築する工程と、を含むことを特徴とする建物の構築方法。
It is a method of constructing a steel-framed building that has a stairwell that covers the stairwell space.
The structure of the atrium includes a steel truss frame having a plurality of layers, a plurality of main columns supporting the truss frame, and a precast concrete plate attached to the lower surface of the truss frame. A reinforced concrete floor slab constructed in each layer of the truss frame is provided.
A process of building the main pillar in the atrium space and erection of a vent at a position different from the main pillar in a plan view.
After the steel frame construction of the truss frame is completed on the main pillar and the vent, and the steel frame construction of the truss frame is completed, the support of the truss frame by the vent is released and the truss frame is released. The process of supporting the body with the main pillar and
For the floor slab of the second layer from the bottom of the truss frame, concrete is poured and constructed, and then concrete is poured sequentially toward the upper layer to construct the floor slab of each layer.
The process of constructing the eaves by lifting and attaching the precast concrete slab from below to the lowermost surface of the truss frame.
Including the step of constructing the floor slab of the lowermost layer of the truss frame.
In the process of attaching the precast concrete slab,
A process of fixing the cushioning material on the work stage at the tip of the boom of the aerial work platform and temporarily fixing the precast concrete slab on the upper surface of the cushioning material.
It includes a step of raising the work stage to the mounting position of the precast concrete slab, lifting the precast concrete slab from below, mounting it on the lowermost surface of the truss frame, and constructing the eaves top portion. How to build a characteristic building.
前記トラス架構体の鉄骨建方では、前記吹き抜け空間となる箇所に架設した前記ベントと前記トラス架構体との間にジャッキを配置して、前記本設柱の外周面および前記ベント上にて鉛直方向の変位を計測し、当該変位が許容値以下になるように、前記ジャッキを駆動して前記トラス架構体の高さ位置を調整することを特徴とする請求項1に記載の建物の構築方法。 In the steel frame construction of the truss frame, a jack is arranged between the vent erected in the atrium space and the truss frame, and the jack is arranged vertically on the outer peripheral surface of the main column and on the vent. The method for constructing a building according to claim 1 , wherein the displacement in the direction is measured and the height position of the truss frame is adjusted by driving the jack so that the displacement becomes equal to or less than the allowable value. ..
JP2016243905A 2016-12-16 2016-12-16 How to build a building Active JP7041463B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2016243905A JP7041463B2 (en) 2016-12-16 2016-12-16 How to build a building

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2016243905A JP7041463B2 (en) 2016-12-16 2016-12-16 How to build a building

Publications (2)

Publication Number Publication Date
JP2018096163A JP2018096163A (en) 2018-06-21
JP7041463B2 true JP7041463B2 (en) 2022-03-24

Family

ID=62631357

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2016243905A Active JP7041463B2 (en) 2016-12-16 2016-12-16 How to build a building

Country Status (1)

Country Link
JP (1) JP7041463B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110847375B (en) * 2019-11-11 2021-06-04 长沙理工大学 Large-span truss construction method and large-span truss structure
KR102394812B1 (en) * 2021-02-09 2022-05-09 최필주 Method for constructing precast flat slab

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004300681A (en) 2003-03-28 2004-10-28 Kajima Corp Frame structure
JP2008256617A (en) 2007-04-06 2008-10-23 Ohbayashi Corp Position monitoring system, and position monitoring method
JP2015151805A (en) 2014-02-18 2015-08-24 大成建設株式会社 Construction method for truss beam

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0514056B2 (en) * 1987-01-05 1993-02-24 Takenaka Komuten Co
JPH0636054Y2 (en) * 1990-10-08 1994-09-21 正一 野呂 Mobile lifter for stacking ALC plates
JPH0642184A (en) * 1992-07-23 1994-02-15 Shimizu Corp Construction of skeleton using half precast floor board
JP2635900B2 (en) * 1993-01-27 1997-07-30 株式会社竹中工務店 Beam deformation control method and device
JP3413584B2 (en) * 1995-04-04 2003-06-03 清水建設株式会社 Construction method of frame structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004300681A (en) 2003-03-28 2004-10-28 Kajima Corp Frame structure
JP2008256617A (en) 2007-04-06 2008-10-23 Ohbayashi Corp Position monitoring system, and position monitoring method
JP2015151805A (en) 2014-02-18 2015-08-24 大成建設株式会社 Construction method for truss beam

Also Published As

Publication number Publication date
JP2018096163A (en) 2018-06-21

Similar Documents

Publication Publication Date Title
JP7041463B2 (en) How to build a building
WO2020185587A1 (en) Vertical slip form construction system with multi-function platform, and method of constructing a building therewith
CN105442839A (en) Erecting method of cantilever structure formwork bent
JP6474151B2 (en) Dismantling system and dismantling method
JP5503223B2 (en) Remodeling existing building
JP6391134B2 (en) Dismantling method and dismantling system
JP5003253B2 (en) RC beam construction method
JP6712501B2 (en) High-rise building demolition system and demolition method
JP3179138U (en) Scaffolding support for leg head construction
JPH05133016A (en) Peripheral supporting self-rising type building engineering method
JPH08270081A (en) Construction method of frame structure
KR102266630B1 (en) Construction method of building with composite beam structure using module deck
KR102394812B1 (en) Method for constructing precast flat slab
KR101491212B1 (en) The extension of the trussed structure building roof and adding method
US3435583A (en) Method of forming buildings
JP2657577B2 (en) Large roof self-elevating device for construction work and method of constructing middle and high-rise building
CN211113725U (en) Construction elevator foundation based on basement structure
CN212507057U (en) Spandrel girder structure is built in building room
KR200200364Y1 (en) High building construction apparatus
JPH0932120A (en) Method of construction of structure
JP6655936B2 (en) Construction method of structure
JP3328790B2 (en) High-rise building assembly method
JP2761526B2 (en) How to build structures
JP2018150144A (en) Construction method of building
JP2761527B2 (en) How to build structures

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20190924

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20200727

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20201030

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20201113

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20210426

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20210613

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20211117

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20211127

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20220310

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20220311

R150 Certificate of patent or registration of utility model

Ref document number: 7041463

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150