JPH0576687U

JPH0576687U - Fittings for round steel welding fittings

Info

Publication number: JPH0576687U
Application number: JP6023891U
Authority: JP
Inventors: 俊吉田
Original assignee: 俊吉田
Priority date: 1991-04-26
Filing date: 1991-04-26
Publication date: 1993-10-19
Anticipated expiration: 2006-04-26
Also published as: JP2565859Y2

Abstract

(57)【要約】【目的】ターンバックルボルトのボルト部とボルト軸
部を、溶接による継ぎ手で継ぎ、継ぎ手部の強度を軸部
の強度と同等にする。【構成】鋼板を円筒状に丸め、この円筒に丸鋼（４及
び５）を差し込み、丸鋼と円筒とを溶接するための一条
又は数条の溝（２）を設ける。この溝部及び円筒の端部
（３）と丸鋼とを溶接すれば、溶接強度は丸鋼強度と同
等になる。【効果】上記の継ぎ手補助金具を利用する事により、
ターンバックルボルトを一本の鋼棒から製造しないで、
溶接して造れるので非常に便利になる。又ボルト部を軸
部より強度の高い鋼材を使用することにより、筋かいの
強度を使用丸鋼の強度と同等とする事が可能となり、Ｊ
ＩＳ規格のものより性能が良くなる。 (57) [Summary] [Purpose] The bolt portion of the turnbuckle bolt and the bolt shaft portion are connected by a joint by welding, and the strength of the joint portion is made equal to the strength of the shaft portion. [Structure] A steel plate is rolled into a cylindrical shape, and round steel (4 and 5) is inserted into this cylinder, and one or several grooves (2) for welding the round steel and the cylinder are provided. If the groove and the end portion (3) of the cylinder are welded to the round steel, the welding strength becomes equal to the strength of the round steel. [Effect] By using the above fitting auxiliary metal fittings,
Do not make turnbuckle bolts from a single steel rod,
It is very convenient because it can be made by welding. Also, by using a steel material that is stronger than the shaft portion for the bolt portion, it is possible to make the strength of the braces equal to that of the round steel used.
Performance is better than that of IS standard.

Description

【考案の詳細な説明】［産業上の利用分野］本考案は、丸鋼を溶接により接続しようとする時の継ぎ手補助金具で、主として建築用のターンバックルの、ターンバックルボルトの軸部の継ぎ手として利用するために開発したものである。［従来の技術］建築用のターンバックルは、胴部とボルト部を一組みとして製造し、建築工場または建築現場で、その長さに応じた丸鋼と溶接すれば便利であるが、適当な継ぎ手方法が無かった。このためＪＩＳ規格では、「ボルトの軸部は１本の鋼棒から製造し、継ぎ手があってはならない」と規定されている。しかしながら厳密な施工を要求されるものの外は、ボルト部と軸部を重ね継ぎ等の不完全な方法で溶接して使用しているものが多い。［考案が解決しようとする課題］ターンバックルボルトのボルト部とボルト軸部を、溶接による継ぎ手で継ぎ、しかも１本の鋼棒から製造したものより高い性能を得ようとするものである。［課題を解決するための手段］上記の目的を達するため、継ぎ手の補助金具を使用する。その構造は第１図に示すように、鋼板を円筒状に丸めたもので、この円筒に丸鋼（４及び５）を差し込み、鋼板部（１）と丸鋼を溶接するための溝（２）を設けてある。溝は丸鋼と溶接の強度から１条または数条とする。［作用］この継ぎ手補助金具を使用するには、円筒状鋼板（１）に丸鋼（４及び５）を差し込み、鋼板（１）の端部（３）及び溝（２）の部分を丸鋼に溶接する。［実施例］実施例として、丸鋼（ＳＳ４１またはＳＲ２４）１３^ｍｍを溶接により継ぐ場合、厚さ３．２^ｍｍ長さ５０^ｍｍ巾４３^ｍｍの鋼板を丸めて円筒状とすれば、約８^ｍｍの溝が出来る。各部分の許容応力（短期）を計算すると丸鋼１３^ｍｍ（ＳＳ４１またはＳＲ２４）Ｆ＝２．４ ^ｔ／ｃｍ^２１．３３ＸＦ＝３．１９^ｔ鋼板（ＳＳ４１）４．３Ｘ０．３２ＸＦ＝３．３^ｔ＞３．１９^ｔ溶接よつて継ぎ手部の強度は丸鋼の強度と同等以上となる。ターンバックルはＭ１４となる。ボルト部の谷の径１１．２^ｍｍ断面積０．９９ｃｍ^２であるので、許容応力は丸鋼より小さくなる。ＪＩＳの規定のように、ターンバックルボルトを１本の鋼棒から製造する場合は、この値が筋かいの許容応力となる。本考案の補助金具を利用すると、ターンバックルボルト部をＳＲ３０等の強度の高い鋼材を使用する事により、ターンバックルの強度を丸鋼と同等以上とする事が可能となる。［考案の効果］本考案を利用すれば、建築用ターンバックルの胴部とボルト部を一組として製造供給し、建築工場または建築現場で、ボルト部を溶接して使用できるので、非常に便利になる。又実施例に示すように、筋かいの強度は使用丸鋼と同等以上となり、ＪＩＳ規格のものより性能が良くなる。[Detailed Description of the Invention] [Industrial field of application] The present invention is a joint auxiliary metal fitting for connecting round steel by welding, and is mainly a joint of a shaft portion of a turnbuckle bolt of a turnbuckle for construction. It was developed for use as. [Prior Art] It is convenient to manufacture a turnbuckle for construction by manufacturing a body and a bolt as a set and welding it with a round steel according to its length at a construction factory or construction site. There was no fitting method. For this reason, the JIS standard stipulates that "the shaft portion of the bolt is manufactured from one steel rod and there should be no joint." However, in addition to those requiring strict construction, many bolts and shafts are welded by an incomplete method such as a lap joint and used. [Problems to be solved by the invention] The purpose is to connect the bolt portion and the bolt shaft portion of the turnbuckle bolt with a joint by welding, and to obtain higher performance than that manufactured from one steel rod. [Means for Solving the Problems] In order to achieve the above purpose, an auxiliary metal fitting of a joint is used. The structure is, as shown in FIG. 1, obtained by rolling a steel plate into a cylindrical shape, and inserting the round steels (4 and 5) into this cylinder to form a groove (2) for welding the steel plate portion (1) and the round steel. ) Is provided. There are one or several grooves for the strength of round steel and welding. [Operation] In order to use this fitting auxiliary fitting, the round steel plates (4 and 5) are inserted into the cylindrical steel plate (1), and the ends (3) and the groove (2) of the steel plate (1) are round steel plates. Weld to. [Example] As an example, when welding 13 ^mm of round steel (SS41 or SR24) by welding, if a steel plate having a thickness of 3.2 ^{mm, a} length of 50 ^{mm and a} width of 43 ^mm is rolled into a cylindrical shape, it is about 8 ^mm. A groove is created. When the allowable stress (short-term) of each part was calculated, round steel 13 ^mm (SS41 or SR24) F = 2.4 ^t / cm ² 1.33XF = 3.19 ^t steel plate (SS41) 4.3X0.32XF = 3. 3 ^{^t>} 3.19 ^t welding Therefore, the strength of the joint is equal to or higher than that of round steel. The turnbuckle is M14. Since the diameter of the valley of the bolt portion is 11.2 ^{mm and the} cross-sectional area is 0.99 cm ² , the allowable stress is smaller than that of round steel. When the turnbuckle bolt is manufactured from a single steel rod as defined by JIS, this value is the allowable stress for bracing. By using the auxiliary metal fitting of the present invention, the turnbuckle bolt portion can be made to have strength equal to or higher than that of round steel by using steel material having high strength such as SR30. [Effects of the Invention] By utilizing the present invention, the body and bolt of the turnbuckle for construction can be manufactured and supplied as a set, and the bolt can be welded and used at a building factory or construction site, which is very convenient. become. Further, as shown in the examples, the strength of the braces is equal to or higher than that of the round steel used, and the performance is better than that of JIS standard.

【図面の簡単な説明】第１図は本考案の継ぎ手補助金具第２図は本考案を利用したターンバックル１円筒状鋼板２溶接用溝３鋼板端部４丸鋼５ターンバックルボルト６ターンバックル胴[Brief description of drawings] Fig. 1 shows the fitting auxiliary fitting of the present invention. FIG. 2 shows a turnbuckle using the present invention. 1 Cylindrical steel plate 2 Welding groove 3 Steel plate edge 4 Round steel 5 turnbuckle bolts 6 turnbuckle trunk

Claims

[Claims for utility model registration] (1) Welding joint made of a cylindrical steel plate having one or several grooves (2) for welding the round steel (4 and 5) inserted therein. Auxiliary metal fittings (2) Turnbuckle using the above fitting auxiliary metal fittings