JPH07247556A - Structure for fixing base of column in steel column member - Google Patents

Structure for fixing base of column in steel column member

Info

Publication number
JPH07247556A
JPH07247556A JP5684194A JP5684194A JPH07247556A JP H07247556 A JPH07247556 A JP H07247556A JP 5684194 A JP5684194 A JP 5684194A JP 5684194 A JP5684194 A JP 5684194A JP H07247556 A JPH07247556 A JP H07247556A
Authority
JP
Japan
Prior art keywords
concrete
column
steel
column base
vertical cylinder
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.)
Pending
Application number
JP5684194A
Other languages
Japanese (ja)
Inventor
Masato Miyake
正人 三宅
Masataka Kinoshita
雅敬 木下
Takuzo Katsura
拓造 葛
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 Steel Corp
Original Assignee
Nippon Steel 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 Steel Corp filed Critical Nippon Steel Corp
Priority to JP5684194A priority Critical patent/JPH07247556A/en
Publication of JPH07247556A publication Critical patent/JPH07247556A/en
Pending legal-status Critical Current

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  • Foundations (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

PURPOSE:To firmly fix a base of column in steel column members in a concrete foundation by a simple means. CONSTITUTION:A plurality of pierced holes 3 are made in a base 2 of column in steel column members 1 and a steel vertical cylinder 5 is arranged at an expected position of a concrete foundation 4 and a part of the base 2 of column provided with pierced holes 3 is disposed in the steel vertical cylinder 5. Then foundation concrete 6 is placed at the external side of the steel vertical cylinder 5 and further, fixing concrete 7 is filled between the steel vertical cylinder 5 and the base 2 of column therein and in the inside of the base 2 of column.

Description

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

【0001】[0001]

【産業上の利用分野】本発明は、建築物の柱、高架道路
の橋脚等の鋼製柱部材を、その下部の基礎構造物に対し
確実にかつ強力に固定し、大規模な上部構造物の構築を
可能とする鋼製柱部材における柱脚の固定構造に関する
ものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention securely and strongly fixes steel pillar members such as pillars of buildings and piers of elevated roads to a substructure of a lower part thereof, and provides a large-scale superstructure. The present invention relates to a fixing structure for a column base in a steel column member that enables the construction of the above.

【0002】[0002]

【従来の技術】従来、建築物の柱,高架道路の柱脚等の
固定部は、上部構造物から伝えられる軸力、せん断力、
曲げモーメントを下部構造物である基礎構造物に確実に
伝達し、巨大な上部構造物を支える重要な箇所である。
建築物の鋼製柱の固定部を例に挙げると、柱脚の固定形
式として、図9および図10に示すように、柱脚2の下
端部に固定した鋼製座板9とその下面に当接された支持
座板10とにわたって、複数のアンカーボルト11の上
部を挿通し、前記座板9の上面に係合されるナット12
を、前記アンカーボルト11の上部に螺合し、かつ前記
柱脚2の各外周面に、多数のスタッドジベル13を溶接
により固定し、前記柱脚2の周囲およびその下側に、多
数の縦鉄筋14と、上下方向に間隔をおいて配置され
て、各縦鉄筋14に固着された多数のフープ筋15とか
らなる鉄筋篭16を配置し、次いで前記支持座板10の
下面に接合すると共に、アンカーボルト11と鉄筋篭1
6の下半部とを埋込むように基礎用コンクリート6を打
設し、その基礎用コンクリート6が硬化したのち、アン
カーボルト11に螺合されているナット12を緊締し、
次に柱脚2および鉄筋篭16を埋込むようにコンクリー
ト17により根巻きする根巻き柱脚が、実際に用いられ
ている。また図11に示すように、多数のスタッドジベ
ル13を固着した柱脚2を、コンクリート基礎4の所定
位置に配置し、かつ、柱脚2の下部に補強鉄筋18を収
納する凹部19を設け、前記凹部19および基礎コンク
リート打設予定位置に、鉄筋コンクリート基礎20を打
設し、前記柱脚2を鉄筋コンクリート20に埋め込む方
式も知られている。
2. Description of the Related Art Conventionally, a fixed portion such as a pillar of a building or a column base of an elevated road has been subjected to axial force, shearing force,
It is an important part that reliably transmits the bending moment to the substructure, which is the substructure, and supports the huge superstructure.
As an example of a fixed part of a steel column of a building, as a fixed form of a column base, as shown in FIGS. 9 and 10, a steel seat plate 9 fixed to the lower end of the column base 2 and a lower surface thereof are used. A nut 12 that is inserted through the upper parts of the anchor bolts 11 over the abutting support seat plate 10 and is engaged with the upper surface of the seat plate 9.
Is fastened to the upper part of the anchor bolt 11, and a large number of stud dowels 13 are fixed to each outer peripheral surface of the column base 2 by welding. A reinforcing bar basket 16 composed of a reinforcing bar 14 and a large number of hoop bars 15 fixed to each vertical reinforcing bar 14 and arranged at intervals in the vertical direction is arranged, and then joined to the lower surface of the support seat plate 10 together. , Anchor bolt 11 and rebar cage 1
Concrete 6 for foundation is placed so as to be embedded in the lower half of 6, and after the concrete 6 for foundation is hardened, the nut 12 screwed to the anchor bolt 11 is tightened,
Next, a root-wound column base, in which the column base 2 and the reinforcing bar cage 16 are buried in a concrete 17, so as to be embedded, is actually used. Further, as shown in FIG. 11, the column base 2 to which a large number of stud dowels 13 are fixed is arranged at a predetermined position of the concrete foundation 4, and a recess 19 for accommodating the reinforcing bar 18 is provided in the lower part of the column base 2. A method is also known in which a reinforced concrete foundation 20 is placed at the recesses 19 and the planned location for foundation concrete placement, and the column base 2 is embedded in the reinforced concrete 20.

【0003】[0003]

【発明が解決しようとする課題】図9および図10に示
す根巻き柱脚および図11に示す埋込み柱脚は、軸方向
および曲げモーメント,せん断力を十分に伝えうる柱脚
であるが、各々以下の問題点を抱えている。まず図9お
よび図10に示す根巻き柱脚について説明すると、根巻
き鉄筋コンクリート21のせん断補強筋が少ない場合
は、斜めひび割れが顕著に現れ、それ以後、ぜい性的な
せん断破壊を生じ易い。また、鋼製柱部材(鋼管柱)1
からのせん断力を根巻き鉄筋コンクリート21に円滑に
伝達するため、根巻き鉄筋コンクリート21の縦方向ひ
び割れおよび支圧ひび割れの伸展を拘束する意味から
も、通常のせん断補強筋のほかに、特に主筋頂部には、
せん断補強筋を密に配置することが必要である。このた
め、根巻き鉄筋コンクリート21の部分の配筋が複雑と
なる。次に埋込み柱脚について説明すると、鋼製柱部材
(鋼管柱)1の場合、基礎コンクリートとの支圧力によ
り、鋼製柱部材(鋼管柱)1の壁部に、局部的に面外変
形が生じる。埋込み深さが十分に確保できない場合に
は、基礎コンクリートの破壊により、耐力が決定し変形
能力の乏しい柱となる。さらに基礎コンクリートの上端
近くの鋼製柱部材(鋼管柱)1の面外変形を防ぐため
に、鋼製柱部材(鋼管柱)1の内部にコンクリートを充
填するか、あるいはダイアフラムを溶接により固定する
等の補剛を行う必要がある。
The root-wound column base shown in FIGS. 9 and 10 and the embedded column base shown in FIG. 11 are column bases capable of sufficiently transmitting the axial direction, bending moment, and shear force. It has the following problems. First, the root-wound column base shown in FIG. 9 and FIG. 10 will be described. When the number of the shear-reinforcing bars of the root-wound reinforced concrete 21 is small, diagonal cracks appear remarkably, and thereafter, brittle shear fracture is likely to occur. In addition, a steel column member (steel pipe column) 1
In order to smoothly transfer the shearing force from the core-wrapped reinforced concrete 21 to the extension of the longitudinal cracks and bearing pressure cracks of the root-wrapped reinforced concrete 21, in addition to the usual shear reinforcement, especially on the top of the main reinforcement. Is
It is necessary to place shear reinforcements closely. For this reason, the bar arrangement of the part of the root-wound reinforced concrete 21 becomes complicated. Next, the embedded column base will be described. In the case of the steel column member (steel pipe column) 1, the wall portion of the steel column member (steel pipe column) 1 is locally out-of-plane deformed due to the supporting pressure with the basic concrete. Occurs. If the embedding depth cannot be secured sufficiently, the strength of the foundation will be determined by the destruction of the basic concrete, resulting in a column with poor deformability. Further, in order to prevent the out-of-plane deformation of the steel column member (steel pipe column) 1 near the upper end of the basic concrete, the inside of the steel column member (steel pipe column) 1 is filled with concrete, or the diaphragm is fixed by welding. It is necessary to reinforce.

【0004】図12ないし図16に示された柱脚の固定
構造には、次の欠点がある。まず図12の場合は、コン
クリートブロック22に下部が埋め込まれた柱脚2の上
部に押圧力Pが作用して、そのコンクリートブロック2
2の下部に曲げひび割れ23が発生した状態を示してい
る。図13の場合は、コンクリートブロック22に下部
が埋め込まれた柱脚2の上部に押圧力Pが作用して、そ
のコンクリートブロック22の上部背面に支圧ひび割れ
24が発生した状態を示している。図14の場合は、コ
ンクリートブロック22に下部が埋め込まれた柱脚2の
上部に押圧力Pが作用して、そのコンクリートブロック
22の下部に斜めひび割れ25が発生した状態を示して
いる。図15の場合は、コンクリートブロック22に下
部が埋め込まれた柱脚2の上部に押圧力Pが作用して、
そのコンクリートブロック22に付着ひび割れ26が発
生した状態を示している。図16の場合は、コンクリー
トブロック22に下部が埋め込まれた柱脚2の上部に押
圧力Pが作用して、鋼製柱部材1の柱脚2が降伏した状
態27を示している。
The column base fixing structure shown in FIGS. 12 to 16 has the following drawbacks. First, in the case of FIG. 12, the pressing force P acts on the upper part of the column base 2 in which the lower part is embedded in the concrete block 22, and the concrete block 2
2 shows a state in which a bending crack 23 is generated in the lower part of 2. In the case of FIG. 13, the pressing force P acts on the upper part of the column base 2 in which the lower part is embedded in the concrete block 22, and a bearing pressure crack 24 is generated on the upper back surface of the concrete block 22. In the case of FIG. 14, the pressing force P acts on the upper portion of the column base 2 in which the lower portion is embedded in the concrete block 22, and the oblique crack 25 is generated in the lower portion of the concrete block 22. In the case of FIG. 15, the pressing force P acts on the upper part of the column base 2 whose lower part is embedded in the concrete block 22,
It shows a state in which an adhesion crack 26 has occurred in the concrete block 22. In the case of FIG. 16, the pressing force P acts on the upper part of the column base 2 in which the lower part is embedded in the concrete block 22, and the column base 2 of the steel column member 1 has yielded 27.

【0005】次に図17ないし図19に示された柱脚の
固定構造には、次の欠点がある。まず図17の場合は、
コンクリート28中に埋設された柱脚2の上部に押圧力
Qが作用して、コンクリート28が圧壊29およびパン
チングシアー破壊30し、かつ柱脚2が曲げ降伏した状
態を示している。図18の場合は、コンクリート28の
中に埋設された柱脚2の上部に押圧力Qが作用して、コ
ンクリート28中の主筋あるいは補強筋が降伏33し、
かつ前面のコンクリート28がパンチングシアー破壊3
0された状態を示している。図19の場合は、コンクリ
ート28の中に埋設された柱脚2の上部に押圧力Qが作
用して、局部的なコンクリート28の支圧破壊31が生
じた状態を示している。
Next, the column base fixing structure shown in FIGS. 17 to 19 has the following drawbacks. First, in the case of FIG.
The pressing force Q acts on the upper portion of the column base 2 embedded in the concrete 28, the concrete 28 collapses 29 and punching shear breaks 30, and the column base 2 bends and yields. In the case of FIG. 18, the pressing force Q acts on the upper portion of the column base 2 embedded in the concrete 28, and the main bar or the reinforcing bar in the concrete 28 yields 33,
And the concrete 28 on the front is destroyed by punching shear 3
The state is 0. In the case of FIG. 19, the pressing force Q acts on the upper part of the column base 2 embedded in the concrete 28, and the partial bearing failure 31 of the concrete 28 is shown.

【0006】[0006]

【課題を解決するための手段】前述の根巻き柱脚、埋込
み柱脚における前記の問題点を解決するために、本発明
の鋼製柱部材における柱脚の固定構造においては、鋼製
柱部材1における柱脚2に複数の透孔3を設け、コンク
リート基礎4の打設予定位置に、鋼製縦筒5を配置し、
前記柱脚2における透孔3を有する部分を、前記鋼製縦
筒5の中に配置し、鋼製縦筒5の外側に基礎用コンクリ
ート6を打設し、鋼製縦筒5とその中の柱脚2との間お
よび柱脚2の内部に、固定用コンクリート7を充填す
る。また鋼製縦筒5の上端縁8をコンクリート基礎4の
上面よりも高くすることにより、鋼製柱部材における柱
脚の固定強度を著しく大きくすることができる。
In order to solve the above-mentioned problems in the above-mentioned root-wound column base and embedded column base, in the structure for fixing the column base in the steel column member of the present invention, a steel column member is used. A plurality of through holes 3 are provided in the column base 2 in 1 and a steel vertical cylinder 5 is arranged at a planned placing position of the concrete foundation 4,
The portion of the column base 2 having the through hole 3 is arranged in the steel vertical cylinder 5, and concrete 6 for foundation is placed outside the steel vertical cylinder 5 to form the steel vertical cylinder 5 and the inside thereof. The fixing concrete 7 is filled between the column base 2 and the inside of the column base 2. Further, by making the upper edge 8 of the steel vertical cylinder 5 higher than the upper surface of the concrete foundation 4, the fixing strength of the column base in the steel column member can be significantly increased.

【0007】次に本発明の作用について説明する。図6
に示すように、コンクリートブロック22に埋め込んだ
有孔板32を引き抜くと、その有孔板32の透孔3の中
にあるコンクリート17はひび割れて有孔板32から剥
離する(図7参照)。しかしながら、図8に示すよう
に、コンクリートブロック22の外側に鋼製縦筒5を配
して、有効板32を引き抜くと、コンクリートはひび割
れて有効板32から剥離しようとするが、鋼製縦筒5に
よりコンクリートのひび割れによる体積膨張が拘束され
るため、有効板32には横方向の圧縮力が作用し、図6
の場合に比較して有効板32の引き抜き耐力は著しく向
上する。同様に、図1に示すように、鋼製縦筒5とその
中の柱脚2との間および柱脚2の内部に、固定用コンク
リート7を充填すれば、鋼製柱部材(鋼管柱)1から、
せん断力が加わると、固定用コンクリート7は体積膨張
を起こそうとするが、この体積膨張は鋼製縦筒5により
拘束されるため、鋼製柱部材(鋼管柱)1には、横方向
からの圧縮力が作用し、そのため前記鋼製柱部材1の固
定部の耐力が向上する。
Next, the operation of the present invention will be described. Figure 6
As shown in FIG. 7, when the perforated plate 32 embedded in the concrete block 22 is pulled out, the concrete 17 in the through holes 3 of the perforated plate 32 cracks and separates from the perforated plate 32 (see FIG. 7). However, as shown in FIG. 8, when the steel vertical cylinder 5 is arranged outside the concrete block 22 and the effective plate 32 is pulled out, the concrete cracks and tries to separate from the effective plate 32. Since the volume expansion due to the cracking of the concrete is restricted by 5, the horizontal compression force acts on the effective plate 32.
The pull-out proof strength of the effective plate 32 is remarkably improved as compared with the above case. Similarly, as shown in FIG. 1, if the fixing concrete 7 is filled between the steel vertical cylinder 5 and the column base 2 therein, and inside the column base 2, a steel column member (steel pipe column) is obtained. From 1,
When a shearing force is applied, the fixing concrete 7 tries to cause volume expansion, but this volume expansion is restrained by the steel vertical cylinder 5, so that the steel column member (steel pipe column) 1 is laterally expanded. Compressive force acts on the fixed portion of the steel column member 1 to improve the proof stress.

【0008】[0008]

【実施例】図1ないし図3は請求項1の発明の実施例に
係る鋼製柱部材における柱脚の固定構造を示すものであ
って、4角形の断面の鋼製柱部材1における柱脚2の各
辺に、それぞれ多数の透孔3が設けられ、かつ前記柱脚
2における透孔3を有する部分は、前記鋼製縦筒5の中
央部に配置され、前記鋼製縦筒5の外側に基礎用コンク
リート6が打設されてコンクリート基礎4が形成され、
かつ前記鋼製縦筒5の内面と柱脚2との間に固定用コン
クリート7が充填されると共に、前記透孔3の内部にも
固定用コンクリート7が充填され、さらに鋼製縦筒5の
上端縁は、コンクリート基礎4の上面および固定用コン
クリート7の上面と同一レベルに配置されている。
1 to 3 show a fixing structure of a column base in a steel column member according to an embodiment of the invention of claim 1, which is a column base in a steel column member 1 having a quadrangular cross section. A large number of through holes 3 are provided on each side of the column 2, and the portion of the column base 2 having the through holes 3 is arranged in the central portion of the steel vertical cylinder 5, and Concrete 6 for foundation is cast on the outside to form concrete foundation 4,
Further, the fixing concrete 7 is filled between the inner surface of the steel vertical cylinder 5 and the column base 2, and the fixing concrete 7 is also filled inside the through hole 3, and further the fixing concrete 7 of the steel vertical cylinder 5 is filled. The upper edge is arranged at the same level as the upper surface of the concrete foundation 4 and the upper surface of the fixing concrete 7.

【0009】図4および図5は請求項2の発明の実施例
に係る鋼製柱部材における柱脚の固定構造を示すもので
あって、鋼製縦筒5の上端縁8がコンクリート基礎4の
上面よりも高レベルに配置され、かつ鋼製縦筒5内に充
填された固定用コンクリート7の上面は、前記鋼製縦筒
5の上端縁8と同一レベルまたはほぼ同一レベルに配置
されているが、その他の構成は請求項1の発明の実施例
の場合と同様である。
FIGS. 4 and 5 show a fixing structure of a column base in a steel column member according to an embodiment of the invention as claimed in claim 2, wherein an upper end edge 8 of a steel vertical cylinder 5 is a concrete foundation 4. The upper surface of the fixing concrete 7 arranged at a higher level than the upper surface and filled in the steel vertical cylinder 5 is arranged at the same level or almost the same level as the upper edge 8 of the steel vertical cylinder 5. However, other configurations are similar to those of the embodiment of the invention of claim 1.

【0010】なお柱脚2に設ける透孔3の大きさは、固
定用コンクリート7に使用されている粗骨材の最大径の
2倍以上にするのが好ましい。
The size of the through hole 3 provided in the column base 2 is preferably at least twice as large as the maximum diameter of the coarse aggregate used in the fixing concrete 7.

【0011】[0011]

【発明の効果】本発明によれば、鋼製柱部材1における
柱脚2に複数の透孔3を設け、コンクリート基礎4の打
設予定位置に、鋼製縦筒5を配置し、前記柱脚2におけ
る透孔3を有する部分を、前記鋼製縦筒5の中に配置
し、鋼製縦筒5の外側に基礎用コンクリート6を打設
し、鋼製縦筒5とその中の柱脚2との間および柱脚2の
内部に、固定用コンクリート7を充填したので、前記鋼
製縦筒5により固定用コンクリート7の体積膨張を拘束
することができ、そのため柱脚から伝えられる力を基礎
用コンクリート6に確実に伝達することができる。また
従来の根巻き鉄筋コンクリート柱脚と比較すると、根巻
き部の鉄筋コンクリートの配筋が、著しく簡略化できる
と共に、鋼製縦筒5が形枠としても働くので、固定用コ
ンクリート7の打設作業を容易に行なうことができる。
さらにまた、鋼製縦筒5の上端縁8をコンクリート基礎
4の上面よりも高くすることにより、鋼製柱部材1の柱
脚2の固定強度を著しく大きくすることができる。
According to the present invention, a plurality of through holes 3 are provided in a column base 2 of a steel column member 1, and a vertical column 5 made of steel is arranged at a position where a concrete foundation 4 is to be placed. The portion of the leg 2 having the through hole 3 is arranged in the steel vertical cylinder 5, and concrete 6 for foundation is placed outside the steel vertical cylinder 5 to form the steel vertical cylinder 5 and the pillars therein. Since the fixing concrete 7 is filled between the leg 2 and the inside of the column base 2, the volume expansion of the fixing concrete 7 can be restrained by the steel vertical cylinder 5, and therefore the force transmitted from the column base. Can be reliably transmitted to the foundation concrete 6. Moreover, compared with the conventional neck wrapping reinforced concrete column base, the reinforcement of the reinforced concrete of the neck wrapping part can be remarkably simplified, and since the steel vertical cylinder 5 also functions as a frame, the work of placing the fixing concrete 7 can be performed. It can be done easily.
Furthermore, by making the upper edge 8 of the steel vertical cylinder 5 higher than the upper surface of the concrete foundation 4, the fixing strength of the column base 2 of the steel column member 1 can be significantly increased.

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

【図1】請求項1の発明の実施例に係る鋼製柱部材にお
ける柱脚の固定構造を示す縦断側面図である。
FIG. 1 is a vertical cross-sectional side view showing a structure for fixing a column base in a steel column member according to an embodiment of the invention of claim 1.

【図2】請求項1の発明の実施例に係る鋼製柱部材にお
ける柱脚の固定構造を示す横断平面図である。
FIG. 2 is a cross-sectional plan view showing a fixing structure of a column base in a steel column member according to an embodiment of the invention of claim 1;

【図3】図2の一部を拡大して示す平面図である。3 is a plan view showing a part of FIG. 2 in an enlarged manner. FIG.

【図4】請求項2の発明の実施例に係る鋼製柱部材にお
ける柱脚の固定構造を示す縦断側面図である。
FIG. 4 is a vertical cross-sectional side view showing a structure for fixing a column base in a steel column member according to an embodiment of the invention of claim 2;

【図5】図4のA−A線拡大断面図である。5 is an enlarged cross-sectional view taken along the line AA of FIG.

【図6】コンクリートブロックに有孔板を埋め込みその
有孔板に引抜力を作用させた状態を示す斜視図である。
FIG. 6 is a perspective view showing a state in which a perforated plate is embedded in a concrete block and a pulling force is applied to the perforated plate.

【図7】有孔板に与えられた引抜力によりコンクリート
ブロックが割れるときの状態を示す縦断側面図である。
FIG. 7 is a vertical cross-sectional side view showing a state where the concrete block is cracked by the pulling force applied to the perforated plate.

【図8】鋼製縦筒内に有孔板を配置して固定用コンクリ
ートを充填し、その有孔板に引抜力を与えた状態を示す
縦断側面図である。
FIG. 8 is a vertical cross-sectional side view showing a state in which a perforated plate is placed in a steel vertical cylinder, fixed concrete is filled, and a pulling force is applied to the perforated plate.

【図9】従来の根巻き鉄筋コンクリートを有する柱脚の
固定構造を示す縦断側面図である。
FIG. 9 is a vertical cross-sectional side view showing a conventional fixing structure for a column base having a neck-wrapped reinforced concrete.

【図10】図9における座板をスタッドジベルとアンカ
ーボルトとを取付けた柱脚を示す側面図である。
10 is a side view showing a column base to which a stud dowel and an anchor bolt are attached to the seat plate in FIG.

【図11】従来の埋込み式柱脚の固定構造を示す縦断側
面図である。
FIG. 11 is a vertical cross-sectional side view showing a conventional fixing structure for an embedded column base.

【図12】コンクリートブロックに下部が埋め込まれた
柱脚に押圧力が作用して、そのコンクリートブロックの
下部に曲げひび割れが発生した状態を示す側面図であ
る。
FIG. 12 is a side view showing a state in which a pressing force acts on a column base in which a lower portion is embedded in a concrete block, and a bending crack occurs in the lower portion of the concrete block.

【図13】コンクリートブロックに下部が埋め込まれた
柱脚に押圧力が作用して、そのコンクリートブロックの
上部背面に支圧ひび割れが発生した状態を示す斜視図で
ある。
FIG. 13 is a perspective view showing a state in which a pressing force acts on a column base in which a lower portion is embedded in a concrete block, and a bearing pressure crack is generated on the upper back surface of the concrete block.

【図14】コンクリートブロックに下部が埋め込まれた
柱脚に押圧力が作用して、そのコンクリートブロックの
下部に斜めひび割れが発生した状態を示す側面図であ
る。
FIG. 14 is a side view showing a state in which a pressing force acts on a column base having a lower part embedded in a concrete block, and an oblique crack is generated in the lower part of the concrete block.

【図15】コンクリートブロックに下部が埋め込まれた
柱脚に押圧力が作用して、そのコンクリートブロックに
付着ひび割れが発生した状態を示す側面図である。
FIG. 15 is a side view showing a state in which a pressing force acts on a column base having a lower part embedded in a concrete block, and an adhesion crack is generated in the concrete block.

【図16】コンクリートブロックに下部が埋め込まれた
柱脚に押圧力が作用して、鋼管柱が降伏した状態を示す
側面図である。
FIG. 16 is a side view showing a state in which a steel pipe column has yielded due to a pressing force acting on a column base whose lower portion is embedded in a concrete block.

【図17】コンクリート中に埋設された柱脚の上部に押
圧力が作用して、コンクリートが圧壊およびパンチング
シアー破壊しかつ柱脚が曲げ降伏した状態を示す縦断側
面図である。
FIG. 17 is a vertical cross-sectional side view showing a state in which a pressing force acts on an upper portion of a column base embedded in concrete, the concrete is crushed and punching shear is destroyed, and the column base is bent and yielded.

【図18】コンクリート中に埋設された柱脚の上部に押
圧力が作用して、主筋あるいは補強筋が降伏し、かつ前
面コンクリートがパンチングシアー破壊された状態を示
す縦断側面図である。
FIG. 18 is a vertical cross-sectional side view showing a state in which a pressing force acts on an upper part of a column base embedded in concrete, the main reinforcing bar or the reinforcing bar yields, and the front concrete is broken by punching shear.

【図19】コンクリート中に埋設された柱脚の上部に押
圧力が作用して、局部的なコンクリートの支圧破壊を生
じた状態を示す一部横断平面図である。
FIG. 19 is a partial cross-sectional plan view showing a state in which a pressing force acts on the upper portion of a column base embedded in concrete to cause local pressure bearing failure of concrete.

【符号の説明】[Explanation of symbols]

1 鋼製柱部材 2 柱脚 3 透孔 4 コンクリート基礎 5 鋼製縦筒 6 基礎用コンクリート 7 固定用コンクリート 8 上端縁 32 有孔板 1 Steel Column Member 2 Column Base 3 Through Hole 4 Concrete Foundation 5 Steel Vertical Cylinder 6 Concrete for Foundation 7 Concrete for Fixing 8 Top Edge 32 Perforated Plate

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 鋼製柱部材1における柱脚2に複数の透
孔3を設け、コンクリート基礎4の打設予定位置に、鋼
製縦筒5を配置し、前記柱脚2における透孔3を有する
部分を、前記鋼製縦筒5の中に配置し、鋼製縦筒5の外
側に基礎用コンクリート6を打設し、鋼製縦筒5とその
中の柱脚2との間および柱脚2の内部に、固定用コンク
リート7を充填した鋼製柱部材における柱脚の固定構
造。
1. A plurality of through holes 3 are provided in a column base 2 of a steel column member 1, and a steel vertical cylinder 5 is arranged at a planned placing position of a concrete foundation 4, and the through holes 3 in the column base 2 are provided. Is placed in the steel vertical cylinder 5 and concrete 6 for foundation is placed outside the steel vertical cylinder 5 between the steel vertical cylinder 5 and the column base 2 therein. A fixed structure of a column base in a steel column member in which the fixing concrete 7 is filled inside the column base 2.
【請求項2】 鋼製縦筒5の上端縁8をコンクリート基
礎4の上面よりも高くした請求項1の鋼製柱部材におけ
る柱脚の固定構造。
2. The fixing structure for a column base of a steel column member according to claim 1, wherein the upper edge 8 of the steel vertical cylinder 5 is higher than the upper surface of the concrete foundation 4.
JP5684194A 1994-03-03 1994-03-03 Structure for fixing base of column in steel column member Pending JPH07247556A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5684194A JPH07247556A (en) 1994-03-03 1994-03-03 Structure for fixing base of column in steel column member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5684194A JPH07247556A (en) 1994-03-03 1994-03-03 Structure for fixing base of column in steel column member

Publications (1)

Publication Number Publication Date
JPH07247556A true JPH07247556A (en) 1995-09-26

Family

ID=13038635

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5684194A Pending JPH07247556A (en) 1994-03-03 1994-03-03 Structure for fixing base of column in steel column member

Country Status (1)

Country Link
JP (1) JPH07247556A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08312061A (en) * 1995-05-18 1996-11-26 Nippon Steel Corp Steel column member and leg part fixing structure thereof
JP2006057371A (en) * 2004-08-23 2006-03-02 Sumitomo Mitsui Construction Co Ltd Rc structural body and axial power transmission structure of permanent substructural column
JP2006104747A (en) * 2004-10-05 2006-04-20 Public Works Research Institute Pier stud connection structure and pier stud connecting method
JP2010236218A (en) * 2009-03-31 2010-10-21 Daiwa House Industry Co Ltd Shaft member joint structure of building using perforated steel plate dowel
JP2013163967A (en) * 2013-04-10 2013-08-22 Ohbayashi Corp Junction structure of steel pipe and footing and steel pipe/concrete composite structural pier using the same
WO2013125108A1 (en) * 2012-02-23 2013-08-29 日立造船株式会社 Joint structure for steel bridge pier and concrete pile foundation

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08312061A (en) * 1995-05-18 1996-11-26 Nippon Steel Corp Steel column member and leg part fixing structure thereof
JP2006057371A (en) * 2004-08-23 2006-03-02 Sumitomo Mitsui Construction Co Ltd Rc structural body and axial power transmission structure of permanent substructural column
JP2006104747A (en) * 2004-10-05 2006-04-20 Public Works Research Institute Pier stud connection structure and pier stud connecting method
JP4691690B2 (en) * 2004-10-05 2011-06-01 独立行政法人土木研究所 Joint structure and joining method of pedestal
JP2010236218A (en) * 2009-03-31 2010-10-21 Daiwa House Industry Co Ltd Shaft member joint structure of building using perforated steel plate dowel
WO2013125108A1 (en) * 2012-02-23 2013-08-29 日立造船株式会社 Joint structure for steel bridge pier and concrete pile foundation
JP2013174050A (en) * 2012-02-23 2013-09-05 Hitachi Zosen Corp Junction structure of steel bridge pier and concrete pile foundation
CN104080977A (en) * 2012-02-23 2014-10-01 日立造船株式会社 Joint structure for steel bridge pier and concrete pile foundation
CN104080977B (en) * 2012-02-23 2016-03-23 日立造船株式会社 The connected structure of steel bridge pier and concrete pile foundation
JP2013163967A (en) * 2013-04-10 2013-08-22 Ohbayashi Corp Junction structure of steel pipe and footing and steel pipe/concrete composite structural pier using the same

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