KR880007879A - 고강도 ps강봉 및 고강도 파일 - Google Patents
고강도 ps강봉 및 고강도 파일 Download PDFInfo
- Publication number
- KR880007879A KR880007879A KR870012576A KR870012576A KR880007879A KR 880007879 A KR880007879 A KR 880007879A KR 870012576 A KR870012576 A KR 870012576A KR 870012576 A KR870012576 A KR 870012576A KR 880007879 A KR880007879 A KR 880007879A
- Authority
- KR
- South Korea
- Prior art keywords
- high strength
- weight
- steel
- concrete
- tensile strength
- Prior art date
Links
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)
- Piles And Underground Anchors (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
내용 없음.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 온도와 증기 양생시간 간의 관계를 나타낸 그래프.
제2도는 시험지그의 평면도.
제3도는 시험기 구의선도.
Claims (2)
- 고강도 PS강봉으로서 0.25∼0.45중량%C, 1.0∼2.0중량% Si 및 Mn의 중량을 각각[Si] 및 [Mn]으로 표시할 때 [Si]/[Mn]의 비율이 1.20±0.50인 1.0중량%이하의 Mn을 포함하는 합금강 성분과 고온압연을 완성한후 350∼500℃의 온도에서 뜨임을 하는 동안 0.8%이상의 변형 속도로 벤딩 혹은 드로잉 한 후 적어도 160kgf/m2의 인장강도를 제공하기 위하여 뛰어난 지연 파괴 성질을 갖는 것을 특징으로 하는 고강도 강봉.
- 고강도 콘크리트 파일로서, 0.25∼0.45중량%C, 1.0∼2.0중량% 및 의 중량을 각각 및 으로 표시할때의 비율이 1.20±0.50인 1.0중량%이상의 을 포함하는 합금강 성분과 고온 압연을 완성한 후에 350∼500℃의 온도에서 뜨임을 하는 동안 0.8%이상의 변형 속도로 벤딩 혹은 드로잉을 한후 적어도 160kgf/m2의 인장강도를 제공하기 위하여 후속하여 담금질을 한 합금강으로 이루어진 뛰어난 지연 파괴 성질을 갖는 고강도 강봉과 상기 강봉의 주위에 고정된 나선형 혹은 후우프형 철근으로 형성된 스티럽(stirrup)을 포함하며, 스트럽을 갖춘 PS강봉은 콘크리트에 삽입되며 콘크리트를 경화하기 전에 인장강도의 0.7배 이상의 응력으로 인장된후, 적어도 50kgf/m2의 유효 프리스트레스를 제공하도록 양생되는 고강도 PS콘크리트 파일.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61293473A JPS63151720A (ja) | 1986-12-11 | 1986-12-11 | 高強度pc鋼棒の製造方法 |
JP293,473 | 1986-12-11 | ||
JP61-293473 | 1986-12-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR880007879A true KR880007879A (ko) | 1988-08-29 |
KR930001137B1 KR930001137B1 (ko) | 1993-02-18 |
Family
ID=17795199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019870012576A KR930001137B1 (ko) | 1986-12-11 | 1987-11-07 | 고강도 pc 강봉 및 고강도 파일 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS63151720A (ko) |
KR (1) | KR930001137B1 (ko) |
GB (2) | GB2198745B (ko) |
HK (1) | HK78991A (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH079038B2 (ja) * | 1990-06-27 | 1995-02-01 | 川鉄テクノワイヤ株式会社 | 低リラクセーションpc鋼材の製造方法 |
JP2886713B2 (ja) * | 1991-08-09 | 1999-04-26 | 川鉄テクノワイヤ 株式会社 | 高強度pcパイル |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5734333B2 (ko) * | 1974-06-21 | 1982-07-22 | ||
JPS50161410A (ko) * | 1974-06-21 | 1975-12-27 | ||
JPS57169020A (en) * | 1981-04-11 | 1982-10-18 | Sumitomo Metal Ind Ltd | Production of high tensile steel bar |
JPS5782431A (en) * | 1980-11-08 | 1982-05-22 | Sumitomo Metal Ind Ltd | Production of high tension wire rod |
JPS5839738A (ja) * | 1981-09-02 | 1983-03-08 | Sumitomo Metal Ind Ltd | 高張力線材の製造方法 |
JPS581016A (ja) * | 1981-06-26 | 1983-01-06 | High Frequency Heattreat Co Ltd | 遅れ破壊特性および機械的性質のすぐれたプレストレストコンクリ−ト用鋼棒又は鋼線の製造方法 |
JPS5839737A (ja) * | 1981-09-02 | 1983-03-08 | Sumitomo Metal Ind Ltd | 高張力線材の製造方法 |
JPS58157921A (ja) * | 1982-03-12 | 1983-09-20 | High Frequency Heattreat Co Ltd | 遅れ破壊特性および機械的性質、特に一様伸びと高温リラクゼ−シヨンのすぐれたプレストレストコンクリ−ト用鋼棒または鋼線およびその製造方法 |
JPS59213816A (ja) * | 1983-05-19 | 1984-12-03 | Asahi Chem Ind Co Ltd | 高強度pcパイル |
JPS6013029A (ja) * | 1983-07-01 | 1985-01-23 | Kawasaki Steel Corp | 高張力鋼棒材の製造方法 |
JPS61104024A (ja) * | 1984-10-25 | 1986-05-22 | Kobe Steel Ltd | 高強度高靭性線材の製造方法 |
-
1986
- 1986-12-11 JP JP61293473A patent/JPS63151720A/ja active Granted
-
1987
- 1987-02-10 GB GB8702986A patent/GB2198745B/en not_active Expired - Lifetime
- 1987-02-10 GB GB878702896A patent/GB8702896D0/en active Pending
- 1987-11-07 KR KR1019870012576A patent/KR930001137B1/ko not_active IP Right Cessation
-
1991
- 1991-10-10 HK HK789/91A patent/HK78991A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB2198745A (en) | 1988-06-22 |
KR930001137B1 (ko) | 1993-02-18 |
GB8702896D0 (en) | 1987-03-18 |
JPH0541684B2 (ko) | 1993-06-24 |
HK78991A (en) | 1991-10-18 |
JPS63151720A (ja) | 1988-06-24 |
GB2198745B (en) | 1990-12-19 |
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