JPH0730974Y2 - High tension bolt with through hole and fastener - Google Patents
High tension bolt with through hole and fastenerInfo
- Publication number
- JPH0730974Y2 JPH0730974Y2 JP1989150475U JP15047589U JPH0730974Y2 JP H0730974 Y2 JPH0730974 Y2 JP H0730974Y2 JP 1989150475 U JP1989150475 U JP 1989150475U JP 15047589 U JP15047589 U JP 15047589U JP H0730974 Y2 JPH0730974 Y2 JP H0730974Y2
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- high tension
- nut
- hole
- head
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 238000010276 construction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- -1 Hydrogen ions Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
Landscapes
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
- Connection Of Plates (AREA)
- Joining Of Building Structures In Genera (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 この考案は、鉄骨構造の建築等において鉄骨の締着に使
用される貫通孔を有するハイテンションボルトおよび締
着具に関するものである。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a high tension bolt and a fastener having through holes used for fastening a steel frame in construction of a steel frame structure or the like.
従来、建築業界では鉄骨構造の建築において鉄骨の接合
には規格としてF10T（建築学会指針「鋼構造設計基準」
許容抗張力1,000kg/cm2の高張力鋼の規格）の高張力鋼
製のハイテンションボルトが使用されている。Conventionally, in the building industry, F10T (Steel structure design standard) is a standard for joining steel frames in steel structure construction.
High tension bolts made of high tensile strength steel with a permissible tensile strength of 1,000 kg / cm 2 are used.
前記従来使用されているハイテンションボルトよりも高
い抗張力のF11T以上の鋼材のボルトを使用することによ
ってボルトの使用本数を減らし重量を軽減させる試みが
なされている。Attempts have been made to reduce the number of bolts used and the weight by using bolts made of steel material of F11T or higher, which has a higher tensile strength than the conventionally used high tension bolts.
この場合、このような高張力鋼材を使用したボルトで締
着することによってボルトにストレスを与え続けると、
ボルト自体の内部応力が働く部分に侵入した水素イオン
によって硬質で脆い材質に変化し数年経過すると１〜３
％程度のボルトに突然ボルトの頭が破断する、いわゆる
「遅れ破壊」の現象が発生し、土木建築構造物では外部
に露出しているボルトの頭が破断と同時に落下し２次災
害を生じる恐れがあり、また遅れ破壊を生じさせないた
めに安全を見越して設計上の許容応力レベルを下げる必
要があり、このためボルト本数を増加させると、これに
伴ないガセットプレートの面積も増加するのでボルトと
ガセットプレートの重量が増大し、構造物の設計にマイ
ナス要因を増加させ、かつ工費が増加する問題点があっ
た。In this case, if you continue to give stress to the bolts by tightening them with bolts using such high-strength steel,
Hydrogen ions that have penetrated into the part where the internal stress of the bolt itself works will change to a hard and brittle material, and after several years, it will be 1-3
About 10% of the bolts suddenly break the head of the bolt, so-called "delayed fracture" phenomenon occurs, and in civil engineering structures, the head of the bolt exposed to the outside may fall and the secondary disaster may occur In addition, it is necessary to reduce the allowable stress level in the design in anticipation of safety in order to prevent delayed fracture.Therefore, if the number of bolts is increased, the area of the gusset plate will be increased accordingly. There is a problem that the weight of the gusset plate increases, a negative factor increases in the design of the structure, and the construction cost increases.
この考案は、これらの問題点を解消しボルトの頭が破断
しても落下しないボルトを提供することを課題とするも
のである。It is an object of the present invention to solve these problems and provide a bolt that does not drop even if the head of the bolt breaks.
この考案は、前記の課題を解決するため、頭から軸端に
至るまで同一径の一本の軸を延長させた1,500kg/cm2程
度以上の抗張力を有する高抗張力鋼製のボルトにおい
て、軸心を通り頭端から軸端に至る縦孔を貫通させ、軸
端にナットを螺合させた状態で前記縦孔に割りピンを緩
挿するようにした貫通孔を有するハイテンションボル
ト、および前記ハイテンションボルトと、このボルトに
螺合するナットと、ボルトの前記縦孔に緩挿される割ピ
ンとからなる締着具、ならびに前記締着具における割ピ
ンに代えてビスとナットとした締着具からなる手段を講
じるものである。In order to solve the above-mentioned problems, the present invention proposes a high-strength steel bolt having a tensile strength of about 1,500 kg / cm 2 or more in which a single shaft having the same diameter is extended from the head to the shaft end. A high tension bolt having a through hole that passes through a vertical hole from the head end to the shaft end and passes through a shaft, and a nut is screwed into the shaft end so that a split pin is loosely inserted into the vertical hole, and Fastening tool consisting of a high tension bolt, a nut screwed to the bolt, and a split pin loosely inserted in the vertical hole of the bolt, and a fastening tool using a screw and a nut instead of the split pin in the fastening tool. Is to take measures.
この考案について図面を参照して説明する。 This invention will be described with reference to the drawings.
第１図および第２図において、１はボルトであって、２
は頭４から軸端７に至るまで同一の径であってねじ３を
有する一本の軸、４は頭で軸心５を通り頭端６から軸端
７に至る縦孔８が貫通している。縦孔８の径は割ピンや
細いビスが緩挿される程度の大きさであり、ボルト１の
材質は抗張力が1,500kg/cm2程度以上の高張力鋼であ
る。1 and 2, 1 is a bolt and 2
Is a single shaft 4 having the same diameter from the head 4 to the shaft end 7 and having a screw 3. Reference numeral 4 is a head which passes through an axial center 5 and passes through a vertical hole 8 from the head end 6 to the shaft end 7. There is. The diameter of the vertical hole 8 is such that a cotter pin or a thin screw is loosely inserted, and the material of the bolt 1 is high tensile steel having a tensile strength of about 1,500 kg / cm 2 or more.
第３図および第４図は締着具の使用状態を示すもので、
第３図において鉄骨梁のウエブ９にガセットプレート10
を密着させ、それらのボルト孔9a,10aにボルト１の軸２
を貫通させ軸端７からナット11を螺合して締着けた後、
頭端６から縦孔８中に割ピン12を緩挿し、軸端７から突
出した脚13を開くように折曲げておくものである。第４
図は第３図の割ピン12に代えてビス14を縦孔８中に緩装
したもので、ビス14の端部にナット15が螺合されたもの
である。3 and 4 show the usage of the fastener,
In FIG. 3, the gusset plate 10 is attached to the web 9 of the steel beam.
The bolt 2 and the bolt holes 9a, 10a into the shaft 2 of the bolt 1
Through the shaft end 7 and tighten the nut 11 from the shaft end 7
The split pin 12 is loosely inserted from the head end 6 into the vertical hole 8 and the leg 13 protruding from the shaft end 7 is bent so as to be opened. Fourth
In the figure, a screw 14 is loosely mounted in the vertical hole 8 in place of the split pin 12 of FIG. 3, and a nut 15 is screwed to the end of the screw 14.
この考案は、（１）締着後、数年を経てボルトの頭が破
断してもボルトの軸から離れて落下したり飛散すること
がないので、２次災害を起すことがなく、（２）ボルト
の鋼材を鉄骨構造における規格であるF10Tすなわち許容
抗張力1,000kg/cm2より高いF11Tすなわち許容抗張力1,5
00kg/cm2程度以上となるように大にすると、頭に破断が
生じやすいが、頭がボルトから離れて落下することがな
いので、従来より大きな抗張力のハイテンションボルト
の使用が可能となり、そのためボルトの使用本数を大幅
に減らすことができ、（３）これに伴ないガセットプレ
ートの面積やボルト締めの工数を減らすことができ、
（４）従来、ガセットプレートとハイテンションボルト
の重量は柱、梁鉄骨の重量の1/4程度を占めていたが、
この考案のように従来の５割増しの抗張力のハイテンシ
ョンボルトを使用した場合は1/5以下に減少するので構
造物の設計上有利であるとともに工費を減少させること
ができる。This invention has the following advantages. (1) Even if the head of the bolt breaks several years after tightening, it does not fall or scatter apart from the shaft of the bolt, thus preventing a secondary disaster. ) Bolt steel is F11T, which is higher than the standard for steel structures, that is, allowable tensile strength of 1,000 kg / cm 2 , F11T, that is, allowable tensile strength of 1,5.
When the large so that 00kg / cm 2 of about above, breaking the head is likely to occur, since no head to fall away from the bolt, allowing the use of high tension bolt of a larger tensile strength than the conventional, therefore The number of bolts used can be greatly reduced, and (3) the area of the gusset plate and the number of bolt tightening steps can be reduced accordingly.
(4) Conventionally, the weight of the gusset plate and high tension bolt occupies about 1/4 of the weight of the pillar and beam steel frame.
When the conventional high tension bolt with a tensile strength of 50% is used as in the present invention, it is reduced to 1/5 or less, which is advantageous in designing the structure and can reduce the construction cost.
第１図は貫通孔を有するハイテンションボルトの正面
図、第２図はその平面図、第３図および第４図はそれぞ
れ締着具の使用状態を示す縦断正面図である。 ５…軸心、６…頭端、７…軸端、８…縦孔、11…ナッ
ト、12…割ピン、14…ビス、15…ナット。FIG. 1 is a front view of a high tension bolt having a through hole, FIG. 2 is a plan view thereof, and FIGS. 3 and 4 are vertical sectional front views showing a usage state of a fastener. 5 ... Shaft center, 6 ... Head end, 7 ... Shaft end, 8 ... Vertical hole, 11 ... Nut, 12 ... Split pin, 14 ... Screw, 15 ... Nut.
Claims (3)
の一本の軸（２）を延長させた1,500kg/cm2程度以上の
抗張力を有する高抗張力鋼製のボルト（１）において、
軸心（５）を通り頭端（６）から軸端（７）に至る縦孔
（８）を貫通させ、軸端（７）にナット（11）を螺合さ
せた状態で前記縦孔（８）に割りピン（12）を緩挿する
ようにした貫通孔を有するハイテンションボルト。1. A bolt made of a high tensile strength steel having a tensile strength of about 1,500 kg / cm 2 or more obtained by extending a single shaft (2) having the same diameter from the head (4) to the shaft end (7) ( In 1),
The vertical hole (8) passing through the shaft center (5) and extending from the head end (6) to the shaft end (7) is passed through, and the nut (11) is screwed onto the shaft end (7) to form the vertical hole ( A high tension bolt having a through hole in which the split pin (12) is loosely inserted in 8).
と、このボルト（１）に螺合するナット（11）と、ボル
ト（１）の前記縦孔（８）に緩挿される割ピン（12）と
からなる締着具。2. The high tension bolt according to claim 1, a nut (11) screwed onto the bolt (1), and a split pin (12) loosely inserted into the vertical hole (8) of the bolt (1). ) A fastener consisting of and.
（12）に代えてビス（14）とナット（15）とした締着
具。3. A fastener according to claim 2, wherein a screw (14) and a nut (15) are used instead of the split pin (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989150475U JPH0730974Y2 (en) | 1989-12-26 | 1989-12-26 | High tension bolt with through hole and fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989150475U JPH0730974Y2 (en) | 1989-12-26 | 1989-12-26 | High tension bolt with through hole and fastener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0388014U JPH0388014U (en) | 1991-09-09 |
| JPH0730974Y2 true JPH0730974Y2 (en) | 1995-07-19 |
Family
ID=31696822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989150475U Expired - Lifetime JPH0730974Y2 (en) | 1989-12-26 | 1989-12-26 | High tension bolt with through hole and fastener |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0730974Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101512936B1 (en) * | 2014-03-14 | 2015-04-17 | 성균관대학교산학협력단 | Heat sink using ionic wind |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5314695A (en) * | 1976-07-28 | 1978-02-09 | Toyo Soda Mfg Co Ltd | Production of dichromium trioxide |
-
1989
- 1989-12-26 JP JP1989150475U patent/JPH0730974Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0388014U (en) | 1991-09-09 |
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