JPH04119005U - Base plate for fixing column base - Google Patents
Base plate for fixing column baseInfo
- Publication number
- JPH04119005U JPH04119005U JP2993791U JP2993791U JPH04119005U JP H04119005 U JPH04119005 U JP H04119005U JP 2993791 U JP2993791 U JP 2993791U JP 2993791 U JP2993791 U JP 2993791U JP H04119005 U JPH04119005 U JP H04119005U
- Authority
- JP
- Japan
- Prior art keywords
- base plate
- column
- base
- corners
- concrete
- 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
Links
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000004873 anchoring Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 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 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Joining Of Building Structures In Genera (AREA)
- Foundations (AREA)
Abstract
(57)【要約】 (修正有)
【目的】 柱材の抗力よりも強力な柱脚部の固定ができ
るようにする。
【構成】 柱材1の下端にベ−スプレ−ト2を固設した
柱脚の基礎コンクリ−トへの固定手段において、そのベ
−スプレ−ト2を、四角形の四隅を斜断した形状のもの
として、交番荷重におけるベ−スプレ−ト2四隅部の基
礎面への応力集中を抑制してコンクリ−トのぜい性的破
壊を防止するとともに、ベ−スプレ−ト2四隅部のアン
カ−ボルトによる抑えを強化して、浮き上りと変形の防
止を図る。
(57) [Summary] (with modifications) [Purpose] To enable fixing of column bases stronger than the drag force of the column material. [Structure] In the means for fixing the base plate 2 to the foundation concrete, the base plate 2 is fixed to the lower end of the column 1. This prevents brittle failure of concrete by suppressing stress concentration on the foundation surface of the four corners of the base plate 2 under alternating loads, and also prevents the anchoring of the four corners of the base plate 2. Strengthen the bolts to prevent lifting and deformation.
Description
【0001】0001
本考案は、建造物等の柱脚部材を基礎構造物のコンクリートに埋立てのアンカ ーボルトに固定するためのベースプレートに関するものである。 This invention is an anchor for the column base members of buildings etc. in the concrete of the foundation structure. - This relates to a base plate for fixing to bolts.
【0002】0002
鉄骨建造物の柱脚(柱下端部)を基礎構造物に固定させるには、従来図4に示 すように、柱材1の下端にベースプレート2を溶接により固設し、基礎構造物の コンクリート7に埋立てたアンカーボルト5 ,5 をベースプレート2に設けたア ンカーホール4 ,4 (図5参照)に挿通して柱脚を基礎面8に載置し、ナット9 を締付けて固定するようにしている。 In order to fix the column base (bottom end of the column) of a steel frame building to the foundation structure, the conventional method shown in Fig. 4 was used. The base plate 2 is fixed to the lower end of the column 1 by welding so that the foundation structure Anchor bolts 5, 5, which are reclaimed in concrete 7, are installed on base plate 2. Place the column base on the foundation surface 8 by inserting it into the anchor holes 4 and 4 (see Figure 5), and then tighten the nut 9. I am trying to fix it by tightening it.
【0003】 上記の柱材1は一般に平面四角形の中空体が使用され、その下端に固設される ベースプレート2も、図5に示すように、柱材1と相似の四角形の厚板により形 成されており、その四隅を含む周辺に沿ってほぼ等間隔で所要数のアンカーホー ル4 ,4 を設けたものとなっている。0003 The above-mentioned pillar material 1 is generally a hollow body with a rectangular plane, and is fixed at the lower end of the hollow body. The base plate 2 is also shaped like a rectangular thick plate similar to the pillar material 1, as shown in Figure 5. The required number of anchor holes are placed at approximately equal intervals along the periphery including the four corners. 4,4.
【0004】0004
ところで、柱脚の破壊モードは多様であるが、アンカーボルトの強度、使用本 数及び配置とベースプレートの大きさ、厚みの関係が不適切な場合には、基礎コ ンクリートの破壊がアンカーボルトやベースプレートの破壊に先行することがあ る。 By the way, the failure modes of column bases are diverse, but the strength of the anchor bolts and the type used If the relationship between the number and arrangement of the base plate and the size and thickness of the base plate is inappropriate, the base plate Failure of the concrete may precede failure of the anchor bolt or base plate. Ru.
【0005】 特にアンカーボルトの配置とベースプレートの形状や厚みのバランスが悪いと 、地震のような交番荷重を受けた場合に、図6の(イ)のように、ベースプレー ト2の一側が柱材1の端部付近から屈曲して浮き上りが生じ、アンカーボルト5 もベースプレート2の浮き上った面にしたがって曲りながら引き伸ばされること になり、柱脚の固定が崩れることになる。また、図6(ロ)、(ハ)に示すよう に、ベースプレートの四隅がコンクリートの基礎面8を鋭角に押す状態ともなり 、そうなれば、基礎コンクリートをぜい性的な破壊に至らせるので、柱材1が本 来有している吸収エネルギーを大巾に低下させることになる。これは柱脚が最も 避けるべきモードの一つであって、このコンクリートのぜい性的破壊を如何にし て防ぐかが、柱脚取付けにおける大きな問題となっていた。[0005] Especially if the placement of anchor bolts and the shape and thickness of the base plate are unbalanced. , when subjected to an alternating load such as an earthquake, the base plate One side of the anchor bolt 2 bends from near the end of the pillar 1, causing an uplift, and the anchor bolt 5 be stretched while being bent along the raised surface of the base plate 2. , and the fixation of the column base would collapse. In addition, as shown in Figure 6 (b) and (c), Also, the four corners of the base plate are pushing the concrete foundation surface 8 at an acute angle. If this happens, the foundation concrete will be brittle and destroyed, so the column material 1 is This will greatly reduce the inherent absorbed energy. This is most important for the pillar base. This is one of the modes that should be avoided, and how to prevent this fragile concrete from being destroyed. A major problem in installing column bases has been how to prevent this from occurring.
【0006】 本考案は上記従来の問題を解決し、コンクリートのぜい性破壊を防ぎ、柱脚の 強固な固定のできる手段を提供しようとするものである。[0006] This invention solves the above conventional problems, prevents brittle failure of concrete, and improves the stability of column bases. The aim is to provide a means for firm fixation.
【0007】[0007]
本考案者は上記の問題点を改善するため鋭意検討を重ねた結果、特に柱脚に固 設するベースプレートの形状とアンカーホールの配置を適正化することにより好 結果が得られることを見出し、本考案を形成するに至った。すなわち、本考案は 、横断面四角形の柱材1の下端に固設したベースプレート2において、平面形状 を柱材1の横断面に相似する四角形の各隅部を斜断した形状とし、柱材1の各辺 と平行する長辺3a,3a間の長さを、柱材1の1辺の長さの2倍弱にて形成す るとともに、アンカーホール4,4を、各長辺3a,3aに沿って等間隔に、か つ斜断した辺3b,3b近くにおいては互に近接して設けたことを特徴とするも のである。 As a result of intensive studies to improve the above problems, the inventor of the present invention found that This can be achieved by optimizing the shape of the base plate to be installed and the placement of the anchor holes. They found that the results could be obtained, and came to form the present invention. In other words, the present invention , a base plate 2 fixed to the lower end of a column 1 having a rectangular cross section has a planar shape. is a rectangular shape similar to the cross section of the column 1, with each corner cut obliquely, and each side of the column 1 is The length between the long sides 3a, 3a parallel to the pillar material 1 is formed to be slightly less than twice the length of one side of the pillar material 1. At the same time, anchor holes 4, 4 are placed at equal intervals along each long side 3a, 3a. It is characterized in that the diagonally cut sides 3b and 3b are provided close to each other. It is.
【0008】[0008]
柱脚に曲げモーメントが働くと、図6の(イ)に示すように、ベースプレート 2の一側は柱材1の端部付近から屈曲して浮き上ろうとするので、地震のような 交番荷重を受けた場合、その浮き上った側のベースプレート2の端が同図(ロ) のように鋭角に基礎面8を押し、それが繰返されることになる。しかも、ベース プレート2は同図(ハ)のように、曲げモーメントの働く方向と直交する方向に も湾曲するようになるので、ベースプレート2の四隅では基礎面への押圧力が集 中することになる。 When a bending moment acts on the column base, as shown in Figure 6 (a), the base plate One side of the column 2 tries to bend and rise from near the end of the column 1, so it may cause an earthquake-like effect. When subjected to an alternating load, the edge of the base plate 2 on the raised side will be The basic surface 8 is pushed at an acute angle as shown in the figure, and this process is repeated. Moreover, the base As shown in the same figure (c), plate 2 is bent in the direction perpendicular to the direction in which the bending moment acts. Since the base plate 2 also becomes curved, the pressing force against the foundation surface is concentrated at the four corners of the base plate 2. I will be inside.
【0009】 このような場合、本考案のベースプレートでは、その四隅が斜断されているの で、基礎面8への応力集中がさけられるとともに、四隅の斜断された辺3b近く には、アンカーボルト5が近接して抵抗することになるので、四隅部の変形と浮 き上りが抑制され、高い対抗力が発揮される。[0009] In such cases, the base plate of the present invention has four beveled corners. Therefore, stress concentration on the foundation surface 8 is avoided, and the area near the beveled side 3b at the four corners is , the anchor bolts 5 will be close to each other and will be resisting, so deformation and floating of the four corners will be avoided. The build-up is suppressed and a high resistance is demonstrated.
【0010】0010
本考案の実施例について、図1、図2を参照して説明すると、1は鉄骨の柱材 で、その下端に本考案のベースプレート2が溶接により固設され、柱脚が形成さ れている。柱材1は横断面が四角形の中空体が用いられ、ベースプレート2は、 柱材1の横断面と相似のほぼ四角形をなし、その四角形の隅部は適宜な長さに斜 断され、長辺3aと斜辺3bとが交互に連続して外形をなしている。そして、ベ ースプレート2の大きさは、その長辺3a,3a間の長さL1 が柱材1の1辺の 長さL2 の2倍弱の長さL1 〉2L2 となっている。また、ベースプレート2の 厚さは、柱材1の1辺の長さと肉厚との関係で適宜定められる。An embodiment of the present invention will be described with reference to FIGS. 1 and 2. Reference numeral 1 denotes a steel column member, and a base plate 2 of the present invention is fixed to the lower end of the column member by welding to form a column base. The pillar material 1 is a hollow body with a rectangular cross section, and the base plate 2 has a substantially rectangular shape similar to the cross section of the pillar material 1. The corners of the rectangle are beveled to an appropriate length, and the long sides are 3a and oblique sides 3b alternately and continuously form the outer shape. The size of the base plate 2 is such that the length L 1 between the long sides 3a, 3a is slightly less than twice the length L 2 of one side of the pillar material 1, L 1 >2L 2 . Further, the thickness of the base plate 2 is appropriately determined based on the relationship between the length of one side of the pillar material 1 and the wall thickness.
【0011】 ベースプレート2には基礎コンクリートに埋立てられたアンカーボルト5 ,5 を挿通するアンカーホール4 ,4 が多数設けられている。それらのアンカーホー ル4 ,4 は、図示のように、各長辺3a,3aに沿って3個宛等間隔P1 ,P1 をおいて直列に設けられており、そして、斜辺3bに近いアンカーホール4 ,4 同志の間隔P2 は上記間隔P1 より短かく互に近接して設けられている。The base plate 2 is provided with a large number of anchor holes 4 , 4 through which anchor bolts 5 , 5 buried in foundation concrete are inserted. As shown in the figure, the anchor holes 4, 4 are provided in series along each long side 3a, 3a at equal intervals P1 , P1 , and the anchor holes near the hypotenuse 3b are provided in series. The distance P2 between the holes 4 and 4 is shorter than the distance P1 , and they are provided close to each other.
【0012】 図3は、本考案ベースプレートを用いた柱脚の取付例を示したもので、従来と 同様に、アンカーホール4,4 に挿通するアンカーボルト5,5 を捨コン10上に固定 した鋼製フレ−ム6に取付けて、基礎コンクリ−ト7に埋立て、それらのアンカ −ボルト5,5 にアンカ−ホ−ル4,4 を通して柱脚のベ−スプレ−ト2を載置し、 ベ−スプレ−ト2より突出したアンカ−ボルト5,5 にナット9,9 を締込んで柱脚 の固定を行うのである。0012 Figure 3 shows an example of installing a column base using the base plate of the present invention. Similarly, anchor bolts 5,5 inserted into anchor holes 4,4 are fixed on top of the waste concrete 10. It is installed on a steel frame 6 that has been constructed, and is filled with foundation concrete 7, and their anchors are - Place the base plate 2 of the column base through the anchor holes 4,4 on the bolts 5,5, Tighten the nuts 9,9 to the anchor bolts 5,5 protruding from the base plate 2, and This is to fix the
【0013】[0013]
【考案の効果】 以上説明したように、柱脚のベ−スプレ−トの形状を、四角形の隅を斜断した 形状にしてその隅部に2個のアンカ−ホ−ルを近接して設けたので、地震のよう な交番荷重を受けた場合でも、従来のようにベ−スプレ−トの四隅がコンクリ− ト基礎面を鋭角に押す状態や浮き上りが回避され、基礎コンクリ−トのぜい性的 な破壊を防ぐことができる。また、ベ−スプレ−トは基礎面と十分広い面積で接 しているので、柱脚固定の崩れを防止することができる。[Effect of the idea] As explained above, the shape of the base plate of the column base is made by cutting the corners of the rectangle diagonally. Because the shape is shaped and two anchor holes are placed close to each other in the corners, it will not be affected by earthquakes. Even when subjected to heavy alternating loads, the four corners of the base plate are not exposed to concrete as in the conventional case. The condition of pressing the foundation surface at an acute angle and lifting up are avoided, and the brittleness of the foundation concrete is reduced. damage can be prevented. Also, the base plate is in contact with the foundation surface over a sufficiently large area. This prevents the column base from collapsing.
【図1】本考案ベ−スプレ−トの一実施例を示す平面図
である。FIG. 1 is a plan view showing an embodiment of the base plate of the present invention.
【図2】同正面図である。FIG. 2 is a front view of the same.
【図3】同使用例を示す正面図である。FIG. 3 is a front view showing the example of use.
【図4】従来の柱脚取付例を示す正面図である。FIG. 4 is a front view showing an example of conventional column pedestal attachment.
【図5】従来のベ−スプレ−トを示す平面図である。FIG. 5 is a plan view showing a conventional base plate.
【図6】(イ)、 (ロ)、(ハ)はそれぞれ柱脚の破壊
モ−ドの一例を示す説明図である。FIGS. 6A, 6B, and 6C are explanatory diagrams each showing an example of the destruction mode of the column base.
1 柱脚 2 ベ−スプレ−ト 3a 長辺 3b 斜辺 4 アンカ−ホ−ル 5 アンカ−ボルト 1 Pillar base 2 Base plate 3a Long side 3b hypotenuse 4 Anchor hole 5 Anchor bolt
Claims (1)
おいて、平面形状を柱材の横断面に相似する四角形の各
隅部を斜断した形状とし、柱材の各辺と平行する長辺間
の長さを、柱材の1辺の長さの2倍弱にて形成するとと
もに、アンカーホールを、各長辺に沿って等間隔に、か
つ斜断した辺近くにおいては互に近接して設けたことを
特徴とする、柱脚固定用ベースプレート。In a base plate fixed to the lower end of a column with a rectangular cross section, the planar shape is a rectangular shape similar to the cross section of the column, with each corner beveled, and the distance between the long sides parallel to each side of the column is The length is slightly less than twice the length of one side of the pillar material, and the anchor holes are provided at equal intervals along each long side and close to each other near the diagonally cut sides. A base plate for fixing column bases.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2993791U JP2580332Y2 (en) | 1991-04-03 | 1991-04-03 | Base plate for fixing column base |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2993791U JP2580332Y2 (en) | 1991-04-03 | 1991-04-03 | Base plate for fixing column base |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04119005U true JPH04119005U (en) | 1992-10-23 |
JP2580332Y2 JP2580332Y2 (en) | 1998-09-10 |
Family
ID=31913701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2993791U Expired - Lifetime JP2580332Y2 (en) | 1991-04-03 | 1991-04-03 | Base plate for fixing column base |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2580332Y2 (en) |
-
1991
- 1991-04-03 JP JP2993791U patent/JP2580332Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2580332Y2 (en) | 1998-09-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5403110A (en) | Square T clamp assembly for elongate members | |
US6920724B1 (en) | Bracket for a structural panel and a structural panel made with such a bracket | |
JPH04119005U (en) | Base plate for fixing column base | |
JP6544532B2 (en) | Base plate and column base structure using the same | |
JP3409137B2 (en) | Bearing wall structure of wooden frame | |
JP3160145B2 (en) | Anchor structure using perforated steel plate | |
JP4656460B2 (en) | Building reinforcement structure | |
JPH06272304A (en) | Junction structure of reinforced concrete column and steel framed beam | |
JP3237490U (en) | Reinforcing metal fittings and reinforcing structure | |
JPS637668Y2 (en) | ||
KR200300985Y1 (en) | Conclusion absence of pipe structure | |
JPH01280151A (en) | Roof bearing member and its fitting mechanism | |
JP2007056498A (en) | Seismic reinforcement structure of existing column | |
JP3049206B2 (en) | Double floor structure | |
JP2825150B2 (en) | Fixing method of column base in steel frame building | |
JP2877187B2 (en) | Decorative formwork panel | |
JP3049439U (en) | Bracing fixture | |
KR100457457B1 (en) | a flat base for temporary construction | |
JPS6041370Y2 (en) | brace | |
KR970005543Y1 (en) | Brace for forms | |
JPH053351U (en) | Bonding structure of steel materials for uprising | |
JPS6236905Y2 (en) | ||
JP3042945U (en) | Joints and fittings for joints in wooden buildings | |
JP3016799U (en) | Wooden building | |
JP3472251B2 (en) | Revetment wall |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |