JPH0454771B2 - - Google Patents
Info
- Publication number
- JPH0454771B2 JPH0454771B2 JP60009711A JP971185A JPH0454771B2 JP H0454771 B2 JPH0454771 B2 JP H0454771B2 JP 60009711 A JP60009711 A JP 60009711A JP 971185 A JP971185 A JP 971185A JP H0454771 B2 JPH0454771 B2 JP H0454771B2
- Authority
- JP
- Japan
- Prior art keywords
- reinforcement
- anchor bolt
- steel
- anchor
- main reinforcement
- 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.)
- Expired - Lifetime
Links
- 230000002787 reinforcement Effects 0.000 claims description 50
- 229910000831 Steel Inorganic materials 0.000 claims description 37
- 239000010959 steel Substances 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 6
- 239000011150 reinforced concrete Substances 0.000 claims description 4
- 238000009415 formwork Methods 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 7
- 239000004567 concrete Substances 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000012447 hatching Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/80—Ground anchors
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
- Foundations (AREA)
Description
【発明の詳細な説明】
(イ) 発明の技術分野
本発明は、アンカーボルト固定専用架台、梁構
造体内部に設置しこれを吊り型枠工法を用いる場
合は、吊り荷重を受ける仮設鉄骨梁と兼用し、鉄
骨鉄筋コンクリート構造の場合は、本設鉄骨梁と
兼用し、また、梁上端主筋を保持する場合は、上
端筋受け鉄骨架台を兼用することによつて省資
源、工期短縮、作業性向上をはかるとともに、ア
ンカー定着板を有するアンカーボルトを梁筋等内
部に定着させるに際してそのアンカー定着板から
惹起する不具合を除き得るように工夫したアンカ
ーボルトの取付け工法に関する。[Detailed Description of the Invention] (a) Technical Field of the Invention The present invention provides a frame exclusively for fixing anchor bolts, and when installed inside a beam structure and using the hanging formwork method, it is used as a temporary steel beam that receives a hanging load. In the case of a steel reinforced concrete structure, it can also be used as the main steel beam, and when the main reinforcement at the top of the beam is to be maintained, it can also be used as the top reinforcement support steel frame to save resources, shorten the construction period, and improve work efficiency. The present invention also relates to an anchor bolt installation method that is devised to eliminate problems caused by the anchor fixing plate when fixing the anchor bolt having the anchor fixing plate inside a beam reinforcement or the like.
(ロ) 技術の背景
原子力発電所等で機器据付け用に用いられるア
ンカーボルトには、通常定着効果を高めるために
直径300mm前後のアンカー定着板が固設されてい
る。そして、アンカーボルトの位置精度は非常に
高く要求される。そのため、アンカーボルトの位
置を固定するため、鉄骨の専用架台を梁構造体の
上部に組み立て、これにアンカーボルトを取付け
固定する方法がとられるが、このアンカーボルト
の梁筋等内部への定着において特に配筋工事との
位置の干渉が生じ、その強度上、配筋品質上、工
程上等の各種問題が生ずるため、それら問題を解
決し得てアンカーボルトを精度良く梁筋等内部に
首尾よく取り付け得ることが強く要望されてい
る。(b) Background of the technology An anchor bolt used for installing equipment at nuclear power plants, etc. is usually fixed with an anchor fixing plate of around 300 mm in diameter to enhance the fixing effect. Furthermore, extremely high positional accuracy of the anchor bolt is required. Therefore, in order to fix the position of the anchor bolt, a special steel frame is assembled on the top of the beam structure, and the anchor bolt is attached and fixed to this frame. In particular, positional interference with reinforcement work occurs, which causes various problems in terms of strength, quality of reinforcement, and process. It is strongly desired that it be possible to install it.
(ハ) 従来技術と問題点
梁等の鉄筋内部にアンカー定着板が固設された
アンカーボルトを取り付ける工法は第５図に示す
ように、梁下端型枠を設置し（ステツプS1）、そ
して梁下端主筋（梁筋のうちの下部鉄筋）及び下
側のスターラツプ（第６図のb1）を配筋してその
主筋を圧接し（ステツプS2）、梁上端主筋（梁筋
のうち上部鉄筋）受け架台を取り付け（ステツプ
S3）、梁端主筋及び上側のスターラツプ（第６図
のａ，b2参照）を配筋してその主筋を圧接等によ
り継ぎ（ステツプS4）、その梁上端主筋及びスタ
ーラツプ上方にアンカーボルト固定専用架台（第
６図のｃ参照）を組み立て（ステツプS5）、アン
カーボルトの位置スミ出しを行ない（ステツプ
S6）、その位置にアンカーボルトが入れ込まれた
ならそのアンカーボルトと干渉してしまうであろ
う梁上端主筋を切断し（ステツプS7）、かくして
梁上端主筋に形成される挿入空間を経てアンカー
ボルト（第６図のd1，d2参照）を梁筋内に入れ込
んでそのアンカーボルトを既に架設済みのアンカ
ーボルト固定専用架台ｃに固定し（ステツプ
S8）、上述の切断された梁上端主筋を重ね継手に
て修復した後（ステツプS9）、コンクリートを打
設して（ステツプS10）梁を形成するものであ
る。(c) Conventional technology and problems The method of installing anchor bolts with anchor fixing plates fixed inside the reinforcing bars of beams, etc. is as shown in Figure 5. Arrange the lower end main reinforcement (the lower reinforcing bar of the beam reinforcement) and the lower stirrup (b 1 in Fig. 6) and press the main reinforcement (step S2), and then press the main reinforcement at the upper end of the beam (the upper reinforcement of the beam reinforcement). Attach the support stand (step
S3), Arrange the main reinforcement at the beam end and the upper stirrup (see a, b 2 in Figure 6), connect the main reinforcement by pressure welding, etc. (Step S4), and fix the anchor bolt exclusively above the main reinforcement at the upper end of the beam and above the stirrup. Assemble the frame (see c in Figure 6) (step S5), and check the position of the anchor bolt (step S5).
S6), cut off the main reinforcement at the top of the beam that would interfere with the anchor bolt if it were inserted into that position (step S7), and then insert the anchor bolt through the insertion space formed in the main reinforcement at the top of the beam. (see d 1 and d 2 in Figure 6) are inserted into the beam reinforcement, and the anchor bolts are fixed to the already erected anchor bolt fixing frame c (step
S8), after repairing the above-mentioned cut main reinforcement at the upper end of the beam with lap joints (step S9), concrete is poured (step S10) to form the beam.
上述の如く、梁上端主筋ａを配筋すると、アン
カーボルトd1を梁上端主筋ａ内部に入れ込むため
には、第６図にハツチングで示す梁上端主筋ａの
切断が上述の如く不可欠の事項となる。この切断
を修復する手段は上述した通り、何段にも亘る梁
上端主筋を重ね継手にて補強するものであるが、
強度的に、又、配筋品質に劣るばかりでなく、そ
の作業に困難を極めて手間、工程に大きな損失と
なる。 As mentioned above, when the main reinforcement a at the top of the beam is arranged, in order to insert the anchor bolt d1 into the main reinforcement a at the top of the beam, it is essential to cut the main reinforcement a at the top of the beam, which is shown by hatching in Fig. 6, as described above. becomes. As mentioned above, the means to repair this cut is to reinforce the main reinforcement at the upper end of the beam over several stages with overlap joints.
Not only is the strength and reinforcement quality inferior, but the work is extremely difficult, resulting in a large loss in time and process.
これを避けるために梁上端主筋の配筋前にアン
カーボルトをアンカーボルト固定専用架台に固定
しようとすると、今度は梁上端主筋の配筋ができ
ないことになる。 In order to avoid this, if you try to fix the anchor bolt to a frame dedicated to fixing anchor bolts before arranging the main reinforcement at the top of the beam, you will not be able to arrange the main reinforcement at the top of the beam.
(ニ) 発明の目的
本発明は上述の如き技術的課題を解決せんとし
て発明されたもので、その目的はアンカーボルト
固定専用架台を用いることなく高精度にアンカー
ボルトを固定可能なアンカーボルトの取付け工法
を提供することにある。(d) Purpose of the Invention The present invention was invented to solve the above-mentioned technical problem, and its purpose is to provide an anchor bolt that can be fixed with high precision without using a frame dedicated to anchor bolt fixing. Our goal is to provide construction methods.
(ホ) 発明の構成
この目的達成のため、本発明工法は、アンカー
定着板を固定したアンカーボルトを設置する梁構
造体内部に梁間を連結可能に配設する鉄骨梁を連
結し、その鉄骨梁の適正位置にアンカーボルト受
け架台および倒れ止め架台を固定した後これら両
架台にアンカーボルトを固定し、梁構造体の上端
主筋の配筋前にアンカーボルトの正確な位置出し
をするようにしたものである。そして、この鉄骨
梁は梁を吊り型枠とする場合には、この吊り荷重
を受ける仮設鉄骨梁と兼用でき、鉄骨鉄筋コンク
リート構造の場合は、本設鉄骨と兼用でき、ま
た、梁上端主筋を保持する場合は、上端筋受け鉄
骨架台と兼用できるようにしたものである。(E) Structure of the Invention In order to achieve this object, the construction method of the present invention connects steel beams arranged so that the beams can be connected inside a beam structure in which anchor bolts with anchor fixing plates are fixed, and connects the steel beams. After fixing the anchor bolt receiving frame and the falling prevention frame at the appropriate positions, anchor bolts are fixed to both frames, and the anchor bolts are positioned accurately before reinforcing the upper end main reinforcement of the beam structure. It is. This steel beam can also be used as a temporary steel beam to receive this hanging load if the beam is a suspended formwork, and can also be used as a permanent steel beam in the case of a steel reinforced concrete structure, and can also be used to hold the main reinforcement at the top of the beam. In this case, it can also be used as a steel frame pedestal for receiving upper end reinforcement.
(ヘ) 発明の実施例
以下、添付図面を参照しながら本発明の実施例
を説明する。(F) Embodiments of the invention Hereinafter, embodiments of the invention will be described with reference to the accompanying drawings.
第１図は梁構造体の上端主筋１を配設する様子
を示すもので、主筋を中間位置に保持するため仮
設鉄骨トラス２を柱に対して渡した後、受け材３
を取り付けて上端の主筋１を受けている。なお、
梁が鉄骨鉄筋コンクリート構造体である場合は梁
内部に本設鉄骨梁を内蔵し、受け材３および主筋
１を受けるものとする。一方、無支保工トラスに
よる仮設鉄骨梁を用いる場合は、第２図に示す如
く梁内部に仮設鉄骨梁４を配置すると共に、この
仮設鉄骨梁４から梁型枠を吊つて主筋を配置し、
その後、梁下の支保工を無くす様に構成できる。
なお、この場合も梁内部に鉄骨が内蔵されて主筋
の配設に用いられる。 Figure 1 shows how the upper end main reinforcement 1 of a beam structure is arranged. After passing the temporary steel truss 2 to the column to hold the main reinforcement in an intermediate position,
is attached to support the main reinforcement 1 at the top end. In addition,
If the beam is a steel-framed reinforced concrete structure, a permanent steel beam shall be built inside the beam to receive the support material 3 and the main reinforcement 1. On the other hand, when using a temporary steel beam made of an unsupported truss, a temporary steel beam 4 is placed inside the beam as shown in FIG.
After that, it can be configured to eliminate the shoring under the beam.
In this case as well, a steel frame is built inside the beam and used for arranging the main reinforcement.
このようにして構成された鉄骨梁は、第４図の
７で示す梁構造体内部に設置される。この際、鉄
骨梁６，６′，６″が互いに連結されて配置され
る。従つて、鉄骨梁６，６′，６″が互いに連結拘
束され、コンクリート打設時にも移動の生じない
極めて強固な架構が構成される。 The steel beam constructed in this manner is installed inside the beam structure shown at 7 in FIG. 4. At this time, the steel beams 6, 6', 6'' are connected to each other and arranged. Therefore, the steel beams 6, 6', 6'' are connected and restrained to each other, and are extremely strong and do not move during concrete pouring. A frame is constructed.
コンクリート打設前に内蔵される鉄骨梁６，
６′，６″を利用してアンカー定着板を固設したア
ンカーボルトを取り付ける。第３図は鉄骨トラス
２に固着された腕８上のアンカーボルト受け架台
１２上にアンカーボルト９のアンカー定着板９Ａ
を配置すると共にアンカーボルト倒れ止め架台１
０によつてアンカーボルト９を保持する状態を示
す本発明の一実施例の側面図である。なお、アン
カーボルト９の下端部１１はアンカーボルト９の
高さを調節可能にするため、２重管構成となつて
いる。この状態でアンカーボルト９の正確な位置
出しが行なわれ、アンカーボルト９が固定され
る。その後、上端主筋１の配筋がアンカーボルト
９を避けうようにして行なわれ、更にスターラツ
プが取り付けられて梁配筋が完了したらコンクリ
ート打設が行なわれる。又、アンカーボルト９が
上端主筋１の配筋位置以外となるような位置にア
ンカーボルト受け架台３及びアンカーボルト倒れ
止め架台１０が鉄骨トラス３に固着されるように
してもよい。 Steel beams installed before concrete pouring 6,
6' and 6'' are used to attach the anchor bolt with the anchor fixing plate fixed to it. Figure 3 shows the anchor fixing plate of the anchor bolt 9 placed on the anchor bolt receiving frame 12 on the arm 8 fixed to the steel truss 2. 9A
At the same time as placing the anchor bolt to prevent it from falling, frame 1
FIG. 2 is a side view of an embodiment of the present invention showing a state in which an anchor bolt 9 is held by a screw. Note that the lower end portion 11 of the anchor bolt 9 has a double tube configuration so that the height of the anchor bolt 9 can be adjusted. In this state, the anchor bolt 9 is accurately positioned, and the anchor bolt 9 is fixed. Thereafter, the upper end main reinforcement 1 is placed so as to avoid the anchor bolts 9, stirrups are attached, and once the beam reinforcement is completed, concrete is placed. Further, the anchor bolt receiving pedestal 3 and the anchor bolt fall prevention pedestal 10 may be fixed to the steel truss 3 at a position where the anchor bolt 9 is located at a position other than the reinforcement position of the upper main reinforcement 1.
(ト) 発明の効果
以上説明したところから明らかなように、本発
明によれば、
鉄筋梁が互いに連結拘束されているので、こ
れに取り付け固定されたアンカーボルトは従来
のアンカーボルト固定専用架台を要することな
しにその位置精度を高くとり得て、
コストの低減および工程の短縮が可能とな
り、また配筋の作業性が向上する等の効果が得
られる。(G) Effects of the Invention As is clear from the above explanation, according to the present invention, the reinforcing steel beams are connected and restrained to each other, so that the anchor bolts attached and fixed to the reinforcing steel beams do not require the use of a conventional frame exclusively for fixing anchor bolts. It is possible to achieve high positional accuracy without the need for reinforcement, which makes it possible to reduce costs and shorten the process, as well as to improve the workability of reinforcing reinforcement.
第１図は鉄筋トラスを用いて本発明工法を具現
化した一実施例の側面図、第２図は仮設鉄骨梁を
用いて本発明工法を具現化した一実施例の側面
図、第３図はアンカーボルトを配設する様子を示
した本発明工法の一実施例の側面図、第４図は連
結拘束した鉄骨梁を示す本発明工法の一実施例の
部分平面図、第５図は従来アンカーボルト取付け
工法の工程を示す図、第６図は従来のアンカーボ
ルトの取付け工法の一例を示す側面図である。
図中１は主筋、２は鉄骨トラス、１２はアンカ
ーボルト受け架台、４は仮設鉄骨梁、６，６′，
６″は鉄骨梁、７は梁構造体、８は腕、９はアン
カーボルト、１０はアンカーボルト倒れ止め架台
である。
Figure 1 is a side view of an embodiment of the construction method of the present invention using reinforcing steel trusses, Figure 2 is a side view of an embodiment of the construction method of the invention using temporary steel beams, and Figure 3 Figure 4 is a side view of an embodiment of the construction method of the present invention showing how anchor bolts are installed, Figure 4 is a partial plan view of an embodiment of the construction method of the invention showing connected and restrained steel beams, and Figure 5 is a conventional FIG. 6 is a side view showing an example of a conventional anchor bolt installation method. In the figure, 1 is the main reinforcement, 2 is the steel truss, 12 is the anchor bolt receiving frame, 4 is the temporary steel beam, 6, 6',
6'' is a steel beam, 7 is a beam structure, 8 is an arm, 9 is an anchor bolt, and 10 is a frame to prevent the anchor bolt from falling.
Claims (1)
設置する梁構造体内部に梁間を連結可能に配設す
る鉄骨梁を連結拘束し、その鉄骨梁をアンカーボ
ルト固定専用架台とし、この鉄骨梁の適正位置に
アンカーボルト受け架台およびアンカーボルト倒
れ止め架台を固定してこれら両架台に前記アンカ
ーボルトを固定し、前記梁構造体の上端主筋の配
筋を行なうことを特徴とするアンカーボルトの取
付け工法。 ２ 前記適正位置が前記上端主筋の配筋位置であ
る場合にはその配筋は前記アンカーボルトを避け
るようにして行なうことを特徴とする特許請求の
範囲第１項記載のアンカーボルトの取付け工法。 ３ 前記適正位置が前記上端主筋の配筋位置以外
である場合にはその位置に配筋を行なうことを特
徴とする特許請求の範囲第１項記載のアンカーボ
ルトの取付け工法。 ４ 前記鉄骨梁が、梁を吊り型枠とする場合に
は、この吊り荷重を受ける仮設鉄骨梁を兼用し、
鉄骨鉄筋コンクリート構造の場合は本設鉄骨梁を
兼用し、また、梁上端主筋を保持する場合は、上
端筋受け鉄骨架台を兼用することを特徴とする特
許請求の範囲第１項記載のアンカーボルトの取付
け工法。[Scope of Claims] 1. Steel beams arranged so as to be connectable between the beams are connected and restrained inside a beam structure in which anchor bolts with fixed anchor fixing plates are installed, and the steel beams are used as a frame exclusively for fixing the anchor bolts, An anchor characterized in that an anchor bolt receiving mount and an anchor bolt fall prevention mount are fixed to appropriate positions of the steel beam, the anchor bolt is fixed to these mounts, and reinforcement is arranged for the upper end main reinforcement of the beam structure. Bolt installation method. 2. The anchor bolt installation method according to claim 1, wherein when the appropriate position is the reinforcement position of the upper end main reinforcement, the reinforcement is arranged so as to avoid the anchor bolt. 3. An anchor bolt installation method according to claim 1, characterized in that when the appropriate position is other than the reinforcement position of the upper end main reinforcement, reinforcement is arranged at that position. 4. When the steel beam is a hanging formwork, the steel beam also serves as a temporary steel beam that receives this hanging load,
In the case of a steel reinforced concrete structure, the anchor bolt is also used as a main steel beam, and when the main reinforcement at the upper end of the beam is held, the anchor bolt according to claim 1 is also used as a steel frame frame for receiving the upper end reinforcement. Installation method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60009711A JPS61169526A (en) | 1985-01-21 | 1985-01-21 | Fitting work of anchor bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60009711A JPS61169526A (en) | 1985-01-21 | 1985-01-21 | Fitting work of anchor bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61169526A JPS61169526A (en) | 1986-07-31 |
| JPH0454771B2 true JPH0454771B2 (en) | 1992-09-01 |
Family
ID=11727833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60009711A Granted JPS61169526A (en) | 1985-01-21 | 1985-01-21 | Fitting work of anchor bolt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61169526A (en) |
-
1985
- 1985-01-21 JP JP60009711A patent/JPS61169526A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61169526A (en) | 1986-07-31 |
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