JPS61186644A - Fixing of reinforced pillar leg - Google Patents

Fixing of reinforced pillar leg

Info

Publication number
JPS61186644A
JPS61186644A JP2656385A JP2656385A JPS61186644A JP S61186644 A JPS61186644 A JP S61186644A JP 2656385 A JP2656385 A JP 2656385A JP 2656385 A JP2656385 A JP 2656385A JP S61186644 A JPS61186644 A JP S61186644A
Authority
JP
Japan
Prior art keywords
column
foundation
base
column base
fixing
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.)
Granted
Application number
JP2656385A
Other languages
Japanese (ja)
Other versions
JPH0222177B2 (en
Inventor
奥田 賢持
布施 達郎
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP2656385A priority Critical patent/JPS61186644A/en
Publication of JPS61186644A publication Critical patent/JPS61186644A/en
Publication of JPH0222177B2 publication Critical patent/JPH0222177B2/ja
Granted legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は、鉄筋コンクリート造の突出した柱または基礎
に、確実に引抜力とせん断力を伝達する鉄骨造柱脚の固
定方法に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for fixing a steel-framed column leg that reliably transmits pulling force and shear force to a protruding reinforced concrete column or foundation.

〔発明の技術的背景とその問題点〕[Technical background of the invention and its problems]

従来、第5図(a) 、 (b)に示すように、鉄筋コ
ンクリート造の突出した柱または基礎IK鉄骨造構造物
の柱脚4を固定する場合、柱または基礎1の断面内にア
ンカーボルト2を配置し、鉄骨造構造物の柱脚ペースグ
レート3を固定する方法が一般的である。この方法では
、■せん断力Qと同時に引抜力Tがアンカーボルト2に
作用するために、アンカーボルト2のせん断速度が低下
する。■ベースグレート3のデルト穴と、アンカーボル
ト2間に施工上のクリアランスを必要とするために、せ
ん断力Qの作用時にすべりを生じ、十分な柱脚4の固定
度が確保できない。■アンカーボルト2に作用したせん
断力Qは、コンクリートの支正により柱または基礎lに
伝達されるが、従来の方式ではコンクリートの割裂破壊
により、柱脚4の剛性、強度の低下を生ずる可能性があ
る。等の欠点があった。
Conventionally, as shown in FIGS. 5(a) and 5(b), when fixing a protruding column made of reinforced concrete or a column base 4 of a foundation IK steel frame structure, an anchor bolt 2 is attached within the cross section of the column or foundation 1. A common method is to arrange the column base plate plate 3 of the steel frame structure and fix it. In this method, (1) the shearing force T acts on the anchor bolt 2 at the same time as the shearing force Q, so the shearing speed of the anchor bolt 2 decreases. ■Since construction clearance is required between the delt hole of the base grate 3 and the anchor bolt 2, slipping occurs when the shear force Q is applied, and sufficient fixation of the column base 4 cannot be ensured. ■The shear force Q acting on the anchor bolt 2 is transmitted to the column or foundation l through concrete support, but with the conventional method, there is a possibility that the rigidity and strength of the column base 4 will decrease due to splitting failure of the concrete. There is. There were drawbacks such as.

〔発明の目的〕[Purpose of the invention]

本発明はこれらの欠点を解決するため、アンカーボルト
には引抜力を負担させ、せん断力については、鉄筋コン
クリート造柱または基礎の側面から面圧により作用させ
るように柱脚のベースプレートに鈎状部を一体に加工す
るように改良を行ったもので、以下図面について詳細に
説明する。
In order to solve these drawbacks, the present invention provides a hook-shaped part on the base plate of the column base so that the anchor bolt bears the pulling force, and the shear force is applied by surface pressure from the side of the reinforced concrete column or foundation. It has been improved so that it can be processed in one piece, and the drawings will be explained in detail below.

〔発明の実施例〕[Embodiments of the invention]

第】図(a) 、 (b)は本発明の一実施例であって
、1は鉄筋コンクリート造の突出した柱または基礎、2
は柱または基礎内に配設したアンカーボルト、3は鉄骨
造構造物の柱脚ペースグレートで、このベースプレート
30周辺部には前記柱または基礎1の側面にかかるよう
に鈎状部301が一体に加工されている。4は鉄骨造柱
脚である。前記鉄筋コンクリート造柱または基礎の側面
1と柱脚ベースプレート3の鈎状部30ノの間の隙間に
は、高強度無収縮モルタルまたはエポキシ樹脂5を充填
する。6はシール材である。
Figures (a) and (b) show an embodiment of the present invention, in which 1 is a protruding pillar or foundation made of reinforced concrete;
3 is an anchor bolt arranged in a column or foundation, 3 is a column foot pace plate of a steel frame structure, and a hook-shaped part 301 is integrated around the base plate 30 so as to hang on the side of the column or foundation 1. Processed. 4 is a steel frame column base. The gap between the side surface 1 of the reinforced concrete column or foundation and the hook-shaped portion 30 of the column base plate 3 is filled with high-strength non-shrinkage mortar or epoxy resin 5. 6 is a sealing material.

すなわち、鉄筋コンクリート造の突出した柱または基礎
1に鉄骨造の柱脚4を固定する場合、柱脚4のペースグ
レート3を柱または基礎1に配設したアンカーポルト2
1C取り付け、このアンカーボルト2により引抜力Tを
伝達し、かつ前記柱または基礎1の側面にかかるよ5に
前記ベースプレート3に鈎状部301を一体に加工し、
このベースプレート3の鈎状部301と前記柱または基
礎1の側面との面圧によりせん断力Qを伝達する。この
方式では、柱脚4に作用するせん断力Qは、柱脚ペース
グレート3から直接鉄筋コンクリート造柱または基礎1
に伝達され、アンカーボルト2には柱脚4に作用する引
抜力Tが作用することとなるため、柱脚4の剛性、引抜
強度、せん断強度の向上等の効果が期待できる。この勢
果を利用して、従来の方式で設計された柱脚一ついても
、第2図(&) # (b)に示すよ5に、補強グレー
トの鈎状部301を既存のベースプレート3に溶接7に
より取りつけることによって、第1図に示す新しい方式
の柱脚3と同様の効果を発揮させることが可能である。
In other words, when fixing a column base 4 made of steel frame to a protruding column or foundation 1 made of reinforced concrete, the anchor port 2 in which the pace grade 3 of the column base 4 is attached to the column or foundation 1 is used.
1C attached, a hook-shaped part 301 is integrally processed on the base plate 3 so that the pulling force T is transmitted by the anchor bolt 2 and is applied to the side surface of the column or foundation 1,
The shear force Q is transmitted by the surface pressure between the hook-shaped portion 301 of the base plate 3 and the side surface of the column or foundation 1. In this method, the shear force Q acting on the column base 4 is directly transmitted from the column base pace grade 3 to the reinforced concrete column or foundation 1.
Since the pulling force T acting on the column base 4 is transmitted to the anchor bolt 2, effects such as improvement of the rigidity, pull-out strength, and shear strength of the column base 4 can be expected. Utilizing this effect, even if there is only one column pedestal designed using the conventional method, the hook-shaped portion 301 of the reinforcing grate can be attached to the existing base plate 3 as shown in Figure 2 (&) # (b). By attaching it by welding 7, it is possible to achieve the same effect as the new type column base 3 shown in FIG.

従来方式Bによる柱脚と本発明による新しい方式Aの柱
脚の構造性能を確認するために第3図(a) 、 (b
)に示すような加力実験を実施した。この結果の概要を
第4図に示す。この場合、基礎8上に鉄筋コンクリート
柱1が設けられている。
In order to confirm the structural performance of the column base according to the conventional method B and the column base according to the new method A according to the present invention, Figures 3 (a) and (b) were used.
) We conducted a force-applying experiment as shown in (). A summary of the results is shown in FIG. In this case, a reinforced concrete column 1 is provided on the foundation 8.

この柱1の幅Lノは350m、高さL2は320国であ
り、またペースグレート3の高さL3は132瓢で、ベ
ースプレート3の鈎状部301の折曲長L4は100露
であり、引張荷重方向の角度θは60°である。即ち、
従来方式Bでは、柱脚のすべりCによる変位の増大、お
よび鉄筋コンクリート柱の割裂破壊りによる荷重低下と
変位の増大を生ずるのに対して、新しい方式Aでは、最
大強度に至るまでの剛性の低下が非常に小さいことがわ
かる。また、新しい方式Aでは従来方式Bの1.5倍の
最大強度が得られた。
The width L of this pillar 1 is 350 m, the height L2 is 320 m, the height L3 of the pace grate 3 is 132 m, and the bending length L4 of the hook-shaped portion 301 of the base plate 3 is 100 m. The angle θ in the direction of the tensile load is 60°. That is,
In conventional method B, the displacement increases due to slipping C of the column base, and the load decreases and increases due to splitting failure of the reinforced concrete column, whereas in the new method A, the rigidity decreases until the maximum strength is reached. It can be seen that it is very small. Furthermore, the new method A achieved a maximum strength 1.5 times that of the conventional method B.

以上の結果より本発明による柱脚固定方式は従来方式に
比べて、柱脚の固定度、強度とも優れていることが明ら
かとなった@ 〔発明の効果〕 以上説明したように本発明によれば、柱脚に作用するせ
ん断力Qは、鉄骨柱脚から直接鉄筋コンクリート柱また
は基礎に伝達され、アンカーボルトには、柱脚に作用す
る引抜力でか作用することとなるため、以下のような利
点がある。
From the above results, it has become clear that the column base fixing method according to the present invention is superior to the conventional method in terms of fixation and strength of the column base. For example, the shear force Q acting on the column base is transmitted directly from the steel column base to the reinforced concrete column or foundation, and the anchor bolt is only affected by the pull-out force acting on the column base. There are advantages.

■ペースグレートのゲルト穴とアンカーボルト間のクリ
アランスがあっても、柱脚と鉄筋コンクリート柱または
基礎との間のすべりを生ずることがなく、柱脚の剛性を
確保できる。■また、アンカーボルトにせん断力が作用
しないので、かぶりコンクリートの割裂破壊を未然に防
止でき、せん断に対する強度向上が期待できる。■さら
に、アンカーボルトには引抜力しか作用しないので、従
来の方式に比ベアンカーゴルトの細径化が可能であり、
付着特性の向上が期待できるので、アンカー長の短縮も
可能となる。
■Even if there is a clearance between the gel hole of the pace grate and the anchor bolt, there will be no slippage between the column base and the reinforced concrete column or foundation, ensuring the rigidity of the column base. ■Also, since no shearing force is applied to the anchor bolt, splitting failure of the cover concrete can be prevented, and the strength against shearing can be expected to be improved. ■Furthermore, since only the pulling force acts on the anchor bolt, it is possible to reduce the diameter of the bare anchor bolt compared to the conventional method.
Since the adhesion properties can be expected to be improved, the anchor length can also be shortened.

【図面の簡単な説明】[Brief explanation of drawings]

第1図(、)は本発明の一実施例を示す断面図、第1図
(b)は同じく平面図、第2図(、)は本発明の他の実
施例を示す断面図、第2図(b)は同じく平面図、第3
図(、)は本発明に係る柱脚ベースプレートの性能確認
試験の一例を示す立面図、第3図(b)は同じく平面図
、第4図は第3図の試験結果の一例を示す特性図、第5
図(、)は従来の鉄骨造柱脚の固定方法を示す断面図、
第5図(b)は同じく平面図である。 1・・・鉄筋コンクリート造柱または基礎、2・・・ア
ンカーデルト、3・・・柱脚ベースグレート、4・・・
鉄骨造柱脚、5・・・無収縮モルタルまたはエポキシ樹
脂、6・・・シール材、7・・・溶接。 出願人代理人  弁理士 鈴 江 武 彦第1図 (a) (b) 第2図 (a) (b) 第3図 第4図
FIG. 1(,) is a sectional view showing one embodiment of the present invention, FIG. 1(b) is a plan view, and FIG. 2(,) is a sectional view showing another embodiment of the present invention. Figure (b) is also a plan view, the third
Figure (,) is an elevational view showing an example of the performance confirmation test of the column base plate according to the present invention, Figure 3 (b) is a plan view, and Figure 4 is a characteristic showing an example of the test results of Figure 3. Figure, 5th
Figure (,) is a cross-sectional view showing the conventional method of fixing a steel column base.
FIG. 5(b) is also a plan view. 1... Reinforced concrete column or foundation, 2... Anchor delt, 3... Column base base grate, 4...
Steel frame column base, 5... Non-shrinkage mortar or epoxy resin, 6... Sealing material, 7... Welding. Applicant's representative Patent attorney Takehiko Suzue Figure 1 (a) (b) Figure 2 (a) (b) Figure 3 Figure 4

Claims (1)

【特許請求の範囲】[Claims] 鉄筋コンクリート造の突出した柱あるいは基礎に鉄骨造
の柱脚を固定する方法において、柱脚のベースプレート
を柱あるいは基礎に配設したアンカーボルトに取付け、
このアンカーボルトにより引抜力を伝達し、かつ柱ある
いは基礎の側面にかかるように前記ベースプレートに鈎
状部を一体に加工し、このベースプレートの鈎状部と、
前記柱あるいは基礎の側面との面圧によりせん断力を伝
達することを特徴とする鉄骨造柱脚の固定方法。
In a method of fixing a steel frame column base to a protruding reinforced concrete column or foundation, the base plate of the column base is attached to an anchor bolt placed on the column or foundation,
A hook-shaped portion is integrally processed on the base plate so that the pulling force is transmitted by the anchor bolt and is applied to the side of the column or foundation, and the hook-shaped portion of the base plate and
A method for fixing a steel frame column base, characterized in that shear force is transmitted by surface pressure with the side surface of the column or foundation.
JP2656385A 1985-02-15 1985-02-15 Fixing of reinforced pillar leg Granted JPS61186644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2656385A JPS61186644A (en) 1985-02-15 1985-02-15 Fixing of reinforced pillar leg

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2656385A JPS61186644A (en) 1985-02-15 1985-02-15 Fixing of reinforced pillar leg

Publications (2)

Publication Number Publication Date
JPS61186644A true JPS61186644A (en) 1986-08-20
JPH0222177B2 JPH0222177B2 (en) 1990-05-17

Family

ID=12197001

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2656385A Granted JPS61186644A (en) 1985-02-15 1985-02-15 Fixing of reinforced pillar leg

Country Status (1)

Country Link
JP (1) JPS61186644A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011106186A (en) * 2009-11-18 2011-06-02 Nagasaki Univ Pedestal fixing structure
JP2013241814A (en) * 2012-05-23 2013-12-05 Toyota Home Kk Column installation structure of building

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011106186A (en) * 2009-11-18 2011-06-02 Nagasaki Univ Pedestal fixing structure
JP2013241814A (en) * 2012-05-23 2013-12-05 Toyota Home Kk Column installation structure of building

Also Published As

Publication number Publication date
JPH0222177B2 (en) 1990-05-17

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