KR880007879A - 고강도 ps강봉 및 고강도 파일 - Google Patents

고강도 ps강봉 및 고강도 파일 Download PDF

Info

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
Application number
KR870012576A
Other languages
English (en)
Other versions
KR930001137B1 (ko
Inventor
마사미쓰 다께이
히로유끼 고주마
다다시 니시노
Original Assignee
다께다 미노루
다이도 콘크리트 리미티드
야스다 다쓰시
가와떼쓰고셍 고오교 가부시끼가이샤
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.)
Filing date
Publication date
Application filed by 다께다 미노루, 다이도 콘크리트 리미티드, 야스다 다쓰시, 가와떼쓰고셍 고오교 가부시끼가이샤 filed Critical 다께다 미노루
Publication of KR880007879A publication Critical patent/KR880007879A/ko
Application granted granted Critical
Publication of KR930001137B1 publication Critical patent/KR930001137B1/ko

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/58Prestressed concrete piles
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/06Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • C21D8/08Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires for concrete reinforcement
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08Members 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

고강도 PS강봉 및 고강도 파일
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 온도와 증기 양생시간 간의 관계를 나타낸 그래프.
제2도는 시험지그의 평면도.
제3도는 시험기 구의선도.

Claims (2)

  1. 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.
  2. 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.
KR1019870012576A 1986-12-11 1987-11-07 고강도 pc 강봉 및 고강도 파일 KR930001137B1 (ko)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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

Similar Documents

Publication Publication Date Title
Johnston Column buckling theory: historic highlights
CA2273334A1 (en) High strength steels having high impact energy absorption properties and a method for producing the same
KR880007879A (ko) 고강도 ps강봉 및 고강도 파일
SU744047A1 (ru) Способ упрочнени пружин из углеродистых и легированных сталей
Zaccone Strain hardening and fatigue of simulated case microstructures in carburized steel
Zaccone Fatigue and Strain-Hardening of High Carbon Martensite--Austenite Composite Microstructures
US3421951A (en) Steel strapping
Wahlberg et al. Nitrogen strengthening of duplex stainless steels
KR880007767A (ko) 응력제거소둔 균열 감수성이 낮은 고장력강의 제조방법
Kliber et al. Deformation Resistance of 9% Chromium Steel by Plane Strain Compression Testing
KAWASAKI et al. Micro-structure and Mechanical Properties of Induction Heating Quenched and Tempered Spring Steel
Gluzman et al. Deformation and Failure Resistance of 35 Kh 3 NM Steel Under Conditions of Impact Loading
Kompek et al. Crack Initiation and Crack Propagation by Torsional Fatigue in Low-Carbon Steels
Funke et al. Behaviour of Light-Gage Steel Members, Strain Hardened by Micro-Profiling
FR2423605A1 (fr) Procede de precontrainte avec armatures speciales d'un type unique pour les cas de precontrainte mixte
Namekata et al. Strengthening on Nonmagnetic Steel for Cryogenic.(Retroactive Coverage)
Thoden et al. Crack Resistance of Carburized Steel under Bend Stress
Lele Mechanical Properties of Hydrogenated Austenitic Stainless Steels
KR890010235A (ko) 2회 소입법에 의한 조질고장력강 제조방법
Kozuma et al. Prestressing Steel Bar and Prestressed Concrete Pile
JPS5719322A (en) Improvement of sulfide stress corrosion cracking of low alloy steel
Gray Stress Corrosion Testing of AU 4 SG Aluminum Alloy in Plate Form
Maier et al. Strength enhancement of 304 L stainless steel by fatigue-induced low-temperature martensitic transformation
Pirusskii et al. Effect of Plastic Deformation on Impact Strength
Belassel et al. Effect of low cycle fatigue on residual stresses evolution in a eutectoid steel: study of the Bauschinger effect by x-ray diffraction

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20070202

Year of fee payment: 15

EXPY Expiration of term