GB2198745B - High strength prestressing steel bar and high strength prestressed concrete pile - Google Patents

High strength prestressing steel bar and high strength prestressed concrete pile

Info

Publication number: GB2198745B
Authority: GB; United Kingdom
Prior art keywords: high strength; steel bar; concrete pile; prestressed concrete; prestressing steel
Prior art date: 1986-12-11
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

Application number

GB8702986A

Other versions

GB2198745A (en

Inventor

Hiroyuki Kozuma

Masamitsu Takei

Tadashi Nishino

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.)

Daido Concrete Co Ltd

JFE Techno Wire Corp

Original Assignee

Kawatetsu Wire Products Co Ltd

Daido Concrete Co Ltd

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.)

1986-12-11

Filing date

1987-02-10

Publication date

1990-12-19

1987-02-10 Application filed by Kawatetsu Wire Products Co Ltd, Daido Concrete Co Ltd filed Critical Kawatetsu Wire Products Co Ltd

1988-06-22 Publication of GB2198745A publication Critical patent/GB2198745A/en

1990-12-19 Application granted granted Critical

1990-12-19 Publication of GB2198745B publication Critical patent/GB2198745B/en

2007-02-10 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Classifications

- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/58—Prestressed concrete piles
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
- C21D8/08—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires for concrete reinforcement
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Structural Engineering (AREA)
Architecture (AREA)
Mechanical Engineering (AREA)
Organic Chemistry (AREA)
Materials Engineering (AREA)
Civil Engineering (AREA)
Metallurgy (AREA)
Thermal Sciences (AREA)
Crystallography & Structural Chemistry (AREA)
Physics & Mathematics (AREA)
Manufacturing & Machinery (AREA)
Life Sciences & Earth Sciences (AREA)
General Life Sciences & Earth Sciences (AREA)
Mining & Mineral Resources (AREA)
Paleontology (AREA)
General Engineering & Computer Science (AREA)
Heat Treatment Of Steel (AREA)
Piles And Underground Anchors (AREA)
Heat Treatment Of Strip Materials And Filament Materials (AREA)
Heat Treatment Of Articles (AREA)

GB8702986A 1986-12-11 1987-02-10 High strength prestressing steel bar and high strength prestressed concrete pile Expired - Lifetime GB2198745B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP61293473A JPS63151720A (en)	1986-12-11	1986-12-11	High strength pc steel rod and high strength pile

Publications (2)

Publication Number	Publication Date
GB2198745A GB2198745A (en)	1988-06-22
GB2198745B true GB2198745B (en)	1990-12-19

Family

ID=17795199

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
GB878702896A Pending GB8702896D0 (en)	1986-12-11	1987-02-10	Prestressing steel bar & concrete pile dispensing apparatus
GB8702986A Expired - Lifetime GB2198745B (en)	1986-12-11	1987-02-10	High strength prestressing steel bar and high strength prestressed concrete pile

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
GB878702896A Pending GB8702896D0 (en)	1986-12-11	1987-02-10	Prestressing steel bar & concrete pile dispensing apparatus

Country Status (4)

Country	Link
JP (1)	JPS63151720A (en)
KR (1)	KR930001137B1 (en)
GB (2)	GB8702896D0 (en)
HK (1)	HK78991A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH079038B2 (en) *	1990-06-27	1995-02-01	川鉄テクノワイヤ株式会社	Low relaxation PC steel manufacturing method
JP2886713B2 (en) *	1991-08-09	1999-04-26	川鉄テクノワイヤ株式会社	High strength PC pile

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5734333B2 (en) *	1974-06-21	1982-07-22
JPS50161410A (en) *	1974-06-21	1975-12-27
JPS57169020A (en) *	1981-04-11	1982-10-18	Sumitomo Metal Ind Ltd	Production of high tensile steel bar
JPS5839738A (en) *	1981-09-02	1983-03-08	Sumitomo Metal Ind Ltd	Manufacturing method of high-tensile wire rod
JPS5782431A (en) *	1980-11-08	1982-05-22	Sumitomo Metal Ind Ltd	Production of high tension wire rod
JPS581016A (en) *	1981-06-26	1983-01-06	High Frequency Heattreat Co Ltd	Production of steel bar of steel wire having superior delayed breakdown characteristic and mechanical properties for prestressed concrete
JPS5839737A (en) *	1981-09-02	1983-03-08	Sumitomo Metal Ind Ltd	Manufacture of high tensile wire rod
JPS58157921A (en) *	1982-03-12	1983-09-20	High Frequency Heattreat Co Ltd	Steel bar or steel wire for prestressed concrete having excellent delayed fracture characteristic and mechanical property, more particularly uniform elongation and high-temperature relaxation and its production
JPS59213816A (en) *	1983-05-19	1984-12-03	Asahi Chem Ind Co Ltd	High strength PC pile
JPS6013029A (en) *	1983-07-01	1985-01-23	Kawasaki Steel Corp	Production of high-tension steel bar material
JPS61104024A (en) *	1984-10-25	1986-05-22	Kobe Steel Ltd	Production of high strength and high toughness wire rod

1986
- 1986-12-11 JP JP61293473A patent/JPS63151720A/en active Granted
1987
- 1987-02-10 GB GB878702896A patent/GB8702896D0/en active Pending
- 1987-02-10 GB GB8702986A patent/GB2198745B/en not_active Expired - Lifetime
- 1987-11-07 KR KR1019870012576A patent/KR930001137B1/en not_active Expired - Lifetime
1991
- 1991-10-10 HK HK789/91A patent/HK78991A/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
JPH0541684B2 (en)	1993-06-24
GB2198745A (en)	1988-06-22
HK78991A (en)	1991-10-18
GB8702896D0 (en)	1987-03-18
KR880007879A (en)	1988-08-29
KR930001137B1 (en)	1993-02-18
JPS63151720A (en)	1988-06-24

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Legal Events

Date	Code	Title	Description
1999-09-29	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 19990210