JP2008157002A - Universal apparatus for reinforcing bar cover - Google Patents

Universal apparatus for reinforcing bar cover Download PDF

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JP2008157002A
JP2008157002A JP2006357334A JP2006357334A JP2008157002A JP 2008157002 A JP2008157002 A JP 2008157002A JP 2006357334 A JP2006357334 A JP 2006357334A JP 2006357334 A JP2006357334 A JP 2006357334A JP 2008157002 A JP2008157002 A JP 2008157002A
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spacer
reinforcing bar
rebar
concrete
bar
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JP2008157002A5 (en
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Kazuto Yamaguchi
一人 山口
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a reinforcing bar spacer for reinforced concrete having a minimum number of types and an economical shape, and hardly being crushed or slipping out by the dead weight of a reinforcing bar. <P>SOLUTION: This spacer is formed by sandwiching the reinforcing bar 4 by a long washer 3 by using a bolt 1 and a nut 2. A cap 5 manufactured of a resilient substance strong against oxidation such as plastic and synthetic rubber is installed on the bolt 1. The oxidation of the spacer is prevented by performing rust preventive processing painting to the spacer. A cover thickness becomes free by this method. Thus, the kind of the spacer is reduced. Since the strength of this spacer is distinguishably high and the shape is also simple, a material can be reduced in volume. Thus, the manufacturing cost of the spacer is reduced. The filling and the passing of a coarse aggregate are facilitated. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

発明の詳細な説明Detailed Description of the Invention

本発明は建築土木の中での専門用語《バーサポート、スペーサー》とは水平に、配筋された、鉄筋の位置

Figure 2008157002
副資材をスペーサーと呼ぶ、従来は両者ともにスペーサーと呼んでいたが、最近では重量を受ける、ものを、バーサポート、受けないものを、スペーサーと明確に分けている。両者の役割が違うからである。
バーサポート、スペーサーは、コンクリートが硬化すれば役目は終えるが、硬化したコンクリートは鉄筋コンクリート造の耐久性、つまり建物の寿命を左右する。言い換えれば、バーサポートスペーサーの適切な、使用は建築主の財産価値を保つ重要要件となる。《バーサポート、スペーサー》の保有すべき性能は組み立てられた、鉄筋の所定の位置の保持、支える鉄筋に対する、耐重量性、コンクリートと同等以上の耐久性などであるバーサポート、スペーサーは、打ち込まれた、コンクリートと一体となり、構造物の一部となるので、所定の強度が必要なことは、いうまでもないバーサポート、スペーサーは、コンクリート打設の際、粗骨材の充填や通過が容易な形状のものが望ましい従来までのバーサポート、スペーサーは種類が多い
別図〔図26〕に簡単に説明、また構造的に弱いは別のページ7ページで説明
本発明の鉄筋かぶり用万能器具は、ボルト、ナット鉄筋を利用する事で、かぶり厚さは、自由自在、強度は抜郡、形状はシンプルで、粗骨材の充填や通過が容易である。種類としては、3分ボルトから、6分ボルトが被る大きさの、キヤップ3種類で特殊な構造物を除けば100%のかぶり厚を保持する事が出来る〔図4〕は3分ボルトから4分ボルト兼用5分ボルトから6分ボルト兼用の図である。金型及び製作過程により多少異なる。シルク、ハット状の形をした物は防水を目的としているが、通常のキヤップも構があるので、通常の防水には間題が無いと考えられる。コンクリートの充填が重要と考えられる。The present invention is the position of the reinforcing bar, which is arranged horizontally with the technical term << bar support, spacer >> in the civil engineering.
Figure 2008157002
Sub-materials are called spacers, both of which have been called spacers in the past, but nowadays, those that receive weight are clearly separated from spacers that do not receive bar support. This is because their roles are different.
The bar supports and spacers are finished when the concrete is hardened, but the hardened concrete affects the durability of the reinforced concrete structure, that is, the life of the building. In other words, proper use of the bar support spacer is an important requirement for maintaining the property value of the owner. 《Bar support, spacer》 should be assembled, hold the bar in place, weight resistance to supporting bar, durability equal to or better than concrete, spacer is driven In addition, since it is integrated with concrete and becomes a part of the structure, it is needless to say that a predetermined strength is required. Bar supports and spacers are easy to fill and pass coarse aggregate when placing concrete. The conventional bar support and spacers, which are preferably of various shapes, are briefly explained in another figure [Fig. 26], and the structural weakness is explained on another page 7. By using bolts and nuts, the cover thickness can be freely adjusted, the strength is excellent, the shape is simple, and it is easy to fill and pass coarse aggregate. As for the type, it is possible to keep the cover thickness of 100% except for the special structure with 3 types of caps. It is a figure of 6 minutes volt combined from 5 minutes volt combined with minute bolt. It varies slightly depending on the mold and manufacturing process. Silk and hat-shaped objects are intended for waterproofing, but normal caps are also available, so there are no problems with normal waterproofing. Concrete filling is considered important.

鉄筋かぶり用、万能器具の取り付け方〔図5〕は一般的な建築構造物の独立基礎の図面で説明
バーサポートの代りで鉄筋D−13φ長さ2.850ミリを8本使用し、主筋から、捨コンクリートまでのかぶり厚を150ミリに組み立てた、位置図である〔図6〕は一般的な橋脚の図面である〔図7〕はバーサポートの代りで鉄筋D−16φ 7850ミリの長さ12本と主筋F6 6本を組み立てた平面図である。重量は415kgあるが、A通りから順番に鉄筋かぶり用万能器具を1本づつ取り付ける、間隔は1800ミリ程度で仮止めをした後かぶり厚及び所定の位置で二重ナットを閉めて固定する。900ミリの間隔で間に入れて完成、ナットをしめる場合は指で軽くしめるだけで、可成りの重量を上・下させる力があるので要注意
主筋がD−35φ以上、D−51φは人の力では無理であるその場合は、主筋の代りに段取り筋を使用して、完全に鉄筋かぶり用万能器具を取り付けた後、クレーンなどを使用して組み立てる〔図8〕は橋脚の鉄筋配筋図に従来までの、サイコロ、及びスチール製のアングルを使用した組み立て図、であるが拾コンクリートが均等ではないので、鉄筋の自重でサイコロが割れる、よって、スチール製のアングルを使用しているが、かぶり厚を所定の位置に保つのは、可成り難しく、地下水、海水等で、アングル、そして鉄筋が酸化して、コンクリートが爆裂するので良くない、〔図10〕の様に鉄筋かぶり用万能器具を取り付ければすべて解消する
Reinforcement cover, installation method of universal equipment (Fig. 5) is explained in the drawing of the independent foundation of general building structure. Instead of the bar support, 8 rebar D-13φ length 2.850 mm length is used. Fig. 6 is a view of a general bridge pier. Fig. 7 shows the length of a rebar D-16φ 7850 mm instead of a bar support. It is the top view which assembled 12 and 6 main muscles F6. Although the weight is 415kg, attach the universal tools for rebar cover one by one in order from street A. After temporarily fixing the interval at about 1800mm, close the double nut at the cover thickness and the predetermined position and fix it. Complete at 900 mm intervals. When tightening the nut, lighten it with your finger, and it has the power to raise and lower a considerable weight, so watch out for D-35φ and D-51φ are human. In that case, the setup bar is used instead of the main bar, and after installing the universal tool for rebar cover completely, it is assembled using a crane etc. [Fig. 8] The figure shows a conventional assembly drawing using dice and steel angles, but the picked-up concrete is not uniform, so the dice breaks due to the weight of the rebar, so steel angles are used. It is quite difficult to keep the cover thickness in place. It is not good because ground and seawater etc. cause the angle and rebar to oxidize and the concrete explode, as shown in [Fig. 10]. Eliminate everything by attaching noh equipment

〔図11〕は鉄筋の加工図及び性質を簡単に説明した図である。重複して説明するが寸法は鉄筋の外側で、ミリメートルで表わしている〔図12〕はバルコニーと床板の鉄筋配筋図、バルコニーのスラブの厚みは根元で180ミリ、先端で120ミリ〔図11〕のスペンサーが根元より100ミリ外側で、スラブの厚みは175ミリの位置に取り付けた状態、鉄筋の長さは、1000ミリ、1mであるが、実際の長さは920ミリ前後である則ち寸法が重なる所が四箇所、曲げる所も四箇所で鉄筋は伸びて〔図11〕の様になる、縮む所は殆どなく、焼き入れの際は、極微量に縮む程度である。床板、スラブの厚みは150ミリでキヤップを装着した部分の長さは85ミリ、全体の長さは890ミリ、先端の部分のスラブの厚みは120ミリでキヤップ装着した部分の長さは55ミリで全体の長さは830ミリである。鉄筋加工は技術的には可成り難しいが、其れ其れの要点をつかまえれば簡単である〔図11〕の形に鉄筋を曲げる機械バーベンダーで加工する場合、鉄筋の曲げる位置、方向、キヤップ装着の部分から両アンカで曲げて、中央の両アンカを引き出して、曲げるセンターを出すのは難しいが、機械に引っぱられる分だけ長くしてセットする。及び電圧によって異なるがそれは微、微たるものである角度によって異なる等があるが、鉄筋を加工してみれば理解できる以上D−10φで説明したが、鉄筋の種類としてはD−6φからD−51φまで約13種類で丸鋼も13種類あるので約26種類、鉄筋のかたさ炭素の含有量、又形、で異なるので、種類は多くなる
鉄筋を曲げる機械バーベンダーの種類はD−16φ、D−25φ、D−32φ、D−41φ、D−51φの5種類が多い、それに伴う、其れ其れの適切な径で加工〔図11〕のバーサポート用の加工は径Rは小さい方が良いが、小さい径で、曲げると、折れる、ひび割れる、金属疲労の原因となる。
[FIG. 11] is a diagram for simply explaining the processing drawing and properties of reinforcing bars. Although redundantly described, the dimensions are outside the reinforcing bar and expressed in millimeters (FIG. 12) is a reinforcing bar arrangement diagram of the balcony and floorboard, and the balcony slab thickness is 180 mm at the base and 120 mm at the tip (FIG. 11). The spencer is 100 mm outside the base, the thickness of the slab is attached at a position of 175 mm, the length of the reinforcing bar is 1000 mm, 1 m, but the actual length is around 920 mm There are four places where the dimensions overlap, and there are four places where it bends, and the reinforcing bars stretch and become almost as shown in [Fig. 11]. There are few places to shrink, and when quenching, they shrink to a very small amount. The thickness of the floorboard and slab is 150 mm, the length of the cap-mounted part is 85 mm, the overall length is 890 mm, the thickness of the slab at the tip is 120 mm, and the length of the cap-mounted part is 55 mm The overall length is 830 mm. Reinforcing bar processing is technically difficult, but it is easy to grasp the main points of each. When processing with a machine barbender that bends the reinforcing bar into the shape of [Fig. 11], the position and direction of bending of the reinforcing bar, It is difficult to bend with the two anchors from the cap-mounted part, pull out both center anchors, and get the center to bend, but set it as long as it is pulled by the machine. Although it differs depending on the voltage, it is slightly different depending on the angle, but it can be understood by processing the rebar, but it has been explained with D-10φ, but the type of rebar is from D-6φ to D- There are about 13 types up to 51φ and 13 types of round steel, so there are about 26 types, the hardness of the reinforcing bar, the carbon content, and the shape, so the types of machine barbenders that bend the reinforcing bars are D-16φ, There are five types of -25φ, D-32φ, D-41φ, and D-51φ, and processing with appropriate diameters of each of them is accompanied by a smaller diameter R in the processing for bar support [Fig. 11]. Good, but with a small diameter, bending can cause breakage, cracking, and metal fatigue.

〔図13〕は階段配筋図、イナズマ筋の寸法が200ミリと300ミリ▲A▼はD−10φ片アンカ、210ミリの寸法にキヤップを装着し図の様に取り付けて、かぶり厚を30ミリ取った様子▲B▼は主筋に添えて結束線で結束して、かぶり厚及び階段の鉄筋組立完了時、人が上に、上がっても壊れにくく丈夫である。
〔図14〕は基礎梁に万能バーサポートを取り付けた位置図、及び詳細図、工法としてはGLの高さまでコンクリートを打設した後にFL−150ミリまで、均一に埋め戻し、土間スラブ配筋を行い、コンクリートを打設の順序が通常の工法であるが基礎の捨てコンクリート及び土間の埋め戻しを均一にする事は先ず困難である。鉄筋かぶり用、万能器具を取り付ける事で均一にする事が出来る。土間スラブの組み立ても同じである。下主筋を1本増す事でバーサポートとなる鉄筋組立作業が、一般スラブ組み立てと同じ位い簡単に、組み立てるには、段取りが必用である
土間スラブはピッチが打ちにくい、結束がしにくい足元がよくない、等を解決するには、先ずは配筋図のピッチを配力筋及び主筋に必用な本数を並べて打つ〔図6〕〔図7〕と同じであるが、広さ、スケールが、ち

Figure 2008157002
の思う位置が速く簡単に出来るので段取りをする際は便利である。
〔図15〕は建築工造物の柱、壁の配筋図で鉄筋を加工して、キヤップを装着してかぶり厚をとった姿図である[Fig. 13] is a staircase arrangement diagram, the Inazuma muscle dimensions are 200 mm and 300 mm, and A is a D-10φ single anchor, with a cap of 210 mm and attached as shown in the figure. The state where the millimeter is removed (B) is attached to the main bar with a binding wire, and when the cover thickness and the staircase rebar assembly are completed, it is hard to break even if a person goes up.
[Fig. 14] is a position view with a universal bar support attached to the foundation beam, and a detailed view. As a method of construction, after concrete is placed to the height of GL, it is backfilled uniformly to FL-150 mm, and the soil slab reinforcement is placed. Although the order of placing and placing concrete is a normal construction method, it is first difficult to make the back-filled concrete and soil backfill uniform. It can be made uniform by attaching a universal tool for reinforcing bars. The assembly of the Doma slab is the same. Assembling the reinforcing bars that serve as a bar support by adding one lower main bar is as easy as assembling ordinary slabs. To assemble slab slabs that require setup, it is difficult to hit the pitch or to bind them. In order to solve the bad, etc., first, the pitch of the reinforcing bar diagram is the same as hitting the necessary number of the reinforcing bar and the main bar side by side, [Fig. 6] [Fig. 7]. Chi
Figure 2008157002
It is convenient when setting up because the desired position can be done quickly and easily.
[Fig. 15] is a figure showing the thickness of the cover with the caps attached by processing the rebars with the bar and wall arrangement of the building construction.

〔図17〕は高速道路の姿図
〔図18〕〔図19〕〔図20〕〔図21〕はそれぞれ鉄筋かぶり用、万能器具を取り付けた姿図
〔図22〕は鉄筋かぶり用、万能器具を取り付けた状態と説明の姿図
〔図23〕高速道路の姿図
〔図24〕は〔図23〕の構造物に鉄筋かぶり用万能器具の取り付けかたの姿図とフラットバーと鉄筋を構造物の径プラス、かぶり厚に加工して取り付けた姿図。
〔図25〕長ワッシヤーが無い場合は、ボルトと同じ径の鉄筋を両サイドに溶接をして、バーサポート、スペーサーにした姿図。
※従来までの、スペンサーの弱点を一つ掲げる。
鉄筋コンクリート構造物を建設する際に、生コンクリート打設があるが、その前に掃除を行う。その時に鉄筋を組み立て終った上で、高圧洗浄機等で掃除する。
又、打設する時も、人が上がって作業する等で鉄筋が曲がったり形枠ベニヤ、鉄板が歪む 直射日光等の要因もある鉄筋と形枠の間隔が一定でなくなる。
同じ大きさのスペンサーでは、下図の様になる。

Figure 2008157002
上図の様に片寄った荷重が掛かり、スペンサーが、つぶれる
Figure 2008157002
コンクリート打設時の圧力で流される等で、確率は少ない。
形枠ベニヤは、生コンクリートの重さで、元に戻るがスペンサーが割れたり、外れたりして、鉄筋のかぶり厚[被覆]が無く鉄筋が表面近くに出て、早い物では半年で鉄筋の錆が表面に出る。十年もすれば、爆裂を起こす。
従来までの鉄筋コンクリート構造物の老朽化の主な原因かう下に箇条書きすると
*1番目 鉄筋の酸化による爆裂
スペンサーが90%以上
*2番目 コンクリート打設の打ち継ぎ面の工法
*3番目 東海地震からの鉄筋量だけが、異常に増えて生コンクリートの組骨材より、鉄筋の間隔がなくなり、生コンクリートの流れが悪く空洞及び組骨材とコンクリートが分離、その結果雨漏り、そして爆裂
*4番目 見た目の重視、格好良さで、構造的に重視して無い建物、コンクリートの打ち継ぎ、及び鉄筋が集中する箇所が多くできる
*3番目と同様である
2番目のコンクリートの打ち継ぎは、新幹線のトンネル内の崩落事故があるが打ち次面のコンクリートの灰汁を取除き速やかに打設を行う
生コンクリート3時間位で、固まり始める。その上から同じ生コンクリートを打設しても、コンクリートは、分離して固まる表面の凹凸で維持している。長年の振動で崩落する確率が高くなる。
建設の場合も同じでそこから雨漏り、そして爆裂
*社会一般では、30年前後の鉄筋コンクリート構造のマンション、及びアパート等は老朽化、雨漏り爆裂して構造物、自体が地震に対応出来ない状態である。20年〜30年住宅ローンを払い終り新築するのに住宅ローンを払うのは、酷である
鉄筋コンクリート構造物は、コンクリートは100年前後まで硬化して、表面から風化されてると言われている
即ち100年以上コンクリートの表面に塗装、及び、タイル張り等で保護すれば、何百年も維持出来るであろう
*現在では、酸性雨が降る等で、アルカリ性のコンクリートの保護する等に良い。[FIG. 17] is a view of an expressway [FIG. 18] [FIG. 19] [FIG. 20] [FIG. 21] is a view for rebar cover, and FIG. Figure [Figure 23] Expressway view [Figure 24] is a diagram of how to install a universal rebar cover, and a flat bar and rebar A figure of the diameter of the object plus the cover thickness.
[FIG. 25] A view of a bar support and spacer made by welding reinforcing bars of the same diameter as bolts on both sides when there is no long washer.
* List one weak point of Spencer.
When constructing a reinforced concrete structure, there is ready-mixed concrete placement, but it is cleaned before that. At that time, after assembling the reinforcing bars, clean them with a high pressure washer.
Also, when placing, the distance between the rebar and the formwork is not constant due to factors such as direct sunlight, which causes the rebar to bend, form veneer, and the steel plate to be distorted when a person goes up and works.
In the case of a spencer of the same size, it looks like the figure below.
Figure 2008157002
As shown in the figure above, a biased load is applied and the spencer collapses.
Figure 2008157002
Probability is low because it is flowed by the pressure when placing concrete.
The form veneer is the weight of ready-mixed concrete and returns to its original state, but the spencer breaks or comes off, and there is no cover thickness of the rebar, and the rebar comes close to the surface. Rust appears on the surface. Ten years later, it will explode.
Listed under the main causes of aging of reinforced concrete structures up to now * 1st explosion spencer due to oxidation of reinforcing bars> 90% * 2 Construction method of jointed surface of concrete placement * 3 From Tokai earthquake Only the amount of reinforcing bars increased abnormally, and there was no gap between the reinforcing bars than the ready-made concrete aggregate, the flow of ready-mixed concrete was bad, and the cavity and the aggregate were separated from the concrete. As a result, it leaked and exploded. Buildings that are not important in terms of structure, good-looking, concrete joints, and where many reinforcing bars are concentrated * The second concrete joint, which is the same as the third, is inside the Shinkansen tunnel. However, it begins to harden in about 3 hours of ready-mixed concrete where the concrete lye on the next surface is removed and the concrete is cast immediately. Even if the same ready-mixed concrete is cast from above, the concrete is maintained with the unevenness of the surface that separates and hardens. Probability of collapse due to long-term vibration increases.
In the case of construction, it leaks from there and then explodes. * In society in general, condominiums and apartments, etc., around 30 years old are aging, rain leaking and exploding, and the structure itself cannot respond to earthquakes . It is said that reinforced concrete structures that are harsh to pay a mortgage to pay off a mortgage for 20 to 30 years and to build a new building are hardened until around 100 years and weathered from the surface. If the surface of the concrete is protected by painting and tiling for more than 100 years, it can be maintained for hundreds of years. * At present, it is good for protecting alkaline concrete due to acid rain.

鉄筋かぶり用、万能器具の姿図▲4▼は鉄筋の断面図▲5▼はキヤップFigure for rebar cover, universal instrument (4) is a cross-sectional view of rebar (5) is a cap 鉄筋かぶり用、万能器具の姿図▲1▼は全ネジボルト▲6▼は防錆処理塗装した部分For rebar cover, figure of universal tool (1) is all screw bolt (6) is rust-proof coated part 長ワッシヤーの斜視図 厚みは1.6ミリから3.2ミリ程度、構造物により異なるPerspective view of long washer Thickness varies from 1.6mm to 3.2mm depending on the structure キヤップ、数値はミリメートル( )内は5分から6分用、金型及び製作過程により多少異なる。Caps, figures in millimeters () for 5 to 6 minutes, slightly different depending on mold and manufacturing process. 建築基礎の断面図、平面図の配筋図に鉄筋かぶり用、万能器具を取り付けた位値図。A cross-sectional view of the building foundation, a scale diagram with a rebar cover and a universal tool attached to the bar arrangement of the plan view. 橋脚の配筋図Bridge pier arrangement 〔図6〕の橋脚の配筋図に鉄筋かぶり用、万能器具を取り付けるまでの段取り図[Fig. 6] Arrangement diagram of bridge pier arrangement for rebar cover and installation of universal equipment 橋脚と杭の断面図Cross section of pier and pile アングルの姿図とサイコロの姿図Angle figure and dice figure 〔図8〕の橋脚と杭の断面図に鉄筋かぶり用、万能器具を取り付けた姿図[Fig.8] Cross-sectional view of bridge pier and pile with figure for rebar cover and universal equipment 鉄筋を曲げた加工図、曲げ及び鉄筋の簡単な性質を示した図Process drawing of rebar bending, diagram showing bending and simple properties of rebar は庇、バルコニー、スラブの鉄筋配筋図である。それに鉄筋かぶり用に加工した鉄筋にキヤップを取り付けた姿図Is a reinforcing bar arrangement diagram of a fence, balcony and slab. Figure of the cap attached to the rebar processed for rebar cover 段階配筋図に鉄筋かぶり用、万能器具を取り付けた姿図である。It is the figure which attached the universal instrument for rebar cover to the stage arrangement diagram. 基礎配筋図、土間スラブ配筋図に鉄筋かぶり用、万能器具を取り付けた姿図。The figure of the rebar cover and universal equipment attached to the basic bar arrangement diagram and the interstitial slab bar arrangement diagram. 建築カベ配筋図に鉄筋かぶり用、万能器具を取り付けた姿図A figure showing a universal cover for a rebar cover on an architectural cabling arrangement 建築一般階の梁の配筋図に、鉄筋かぶり用、万能器具を取り付けた姿図A figure of the beam arrangement on the general building floor with rebar cover and universal equipment 高速道路の姿図Figure of highway 〔図19〕〔図20〕〔図21〕は高速道路の鉄筋コンクリートの構造物の配筋図に鉄筋かぶり用万能器具を取り付けた姿図[FIG. 19] [FIG. 20] [FIG. 21] is a view of a reinforced concrete structure mounted on a highway reinforced concrete structure. 鉄筋かぶり用、万能器具を取り付けた詳細図と説明。Detailed view and explanation for rebar cover, with all-purpose equipment attached. 高速道路の姿図Figure of highway は〔図23〕の構造物に鉄筋かぶり用万能器具の取り付けかたの説明と詳細図Is a detailed explanation of how to install a universal instrument for reinforcing steel bars on the structure of [Fig.

Claims (3)

ボルト、ナット、長い座金、及び鉄筋等を利用し、プラステック、合成ゴム等で、酸化に強く、弾性力のある物質で製造した、キヤップを装着、或は防錆処理塗装し、鉄筋のかぶり厚を確実に、保持する器具の中の部品〔図3〕の長い座金  Bolts, nuts, long washers, reinforcing bars, etc., made of plastic, synthetic rubber, etc., made of a material that is resistant to oxidation and elastic, fitted with caps, or coated with anticorrosion treatment, covered with reinforcing bars. A long washer for the part (Fig. 3) in the instrument that securely holds the thickness. 〔図1〕の5及び〔図4〕のボルト、鉄筋等に、装着する、シルクハット状の形をした、キヤップ、及び通常のキヤップCaps in the shape of a top hat to be attached to the bolts, reinforcing bars, etc. in [Fig. 1] and [Fig. 4], and ordinary caps 〔図2〕の6全ネジボルトに鉄筋のかぶり厚みの長さに、防錆処理塗装を施した、全ネジボルト[Fig. 2] All screw bolts with anti-rust coating applied to the length of the steel cover on all six screw bolts
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101161357B1 (en) * 2011-03-05 2012-07-02 미래테크(주) Steel connecting device
JP2017066847A (en) * 2015-09-28 2017-04-06 一人 山口 Universal tool for reinforcement covering and tool for fixing reinforcement at predetermined position
CN108518070A (en) * 2018-05-31 2018-09-11 中铁十六局集团城市建设发展有限公司 One kind having enough to meet the need general accurate adjustment control for cast-in-situ slabs tendon protective layer
JP2019112815A (en) * 2017-12-22 2019-07-11 ショーボンド建設株式会社 Reinforcement tool and method of reinforcing reinforced concrete structure using the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101161357B1 (en) * 2011-03-05 2012-07-02 미래테크(주) Steel connecting device
JP2017066847A (en) * 2015-09-28 2017-04-06 一人 山口 Universal tool for reinforcement covering and tool for fixing reinforcement at predetermined position
JP2019112815A (en) * 2017-12-22 2019-07-11 ショーボンド建設株式会社 Reinforcement tool and method of reinforcing reinforced concrete structure using the same
JP7077010B2 (en) 2017-12-22 2022-05-30 ショーボンド建設株式会社 Reinforced structure of reinforced concrete structure and reinforcement method of reinforced concrete structure
CN108518070A (en) * 2018-05-31 2018-09-11 中铁十六局集团城市建设发展有限公司 One kind having enough to meet the need general accurate adjustment control for cast-in-situ slabs tendon protective layer
CN108518070B (en) * 2018-05-31 2024-03-19 中铁十六局集团城市建设发展有限公司 Be used for general fine tuning control of cast-in-situ slab reinforcement protective layer turnover

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