스테인리스 원형강관 보-기둥의 내력에 관한 연구
- Issued Date
- 2009
- Abstract
- Stainless steel has a significance in its corrosion resistance, while it has been scarcely used in structural skeletons of building due to high prices. However, in the recent movement of social mind from mass production and abundant consumption to ecological coexistence with natural environment, sustaining a long life of building is of much concern in construction engineering. In that context, stainless steel is expected to be promising material for building.
Also stainless steel of easy maintenance and fire resistance efficiency, elongation is superior carbon steel can be used for structural members.
This study is experimental and analytical works on stainless steel tubular sections fabricated by cold-forming. The purpose of the study was to determine the buckling strength of stainless steel structural hollow sections and to develop guidelines for the design of these sections as structural members.
It is a series of experimental investigation on the compressed tests on stainless steel tubular columns and beam columns, including material tests(stub column tests, residual stress tests, coupon tests).
The experimental parameters of this study are as follows ;
1. Material tests
- A kind of steel : Stainless steel(STK 304 TKC)
- Section shape : Circle hollow section(○-101.6×3.0)
- Diameter-thickness ratio : D/t - 34
2. Columns test
- A kind of steel : Stainless steel(STK 304 TKC)
- Section shape : Circular hollow section(○-101.6×3.0)
- Diameter-thickness ratio : D/t - 34
- Slenderness ratio() : 30, 50, 70
3. Beam-columns test
- A kind of steel : Stainless steel(STK 304 TKC)
- Section shape : Circular hollow section(○-101.6×3.0)
- Diameter-thickness ratio : D/t - 34
- Slenderness ratio() : 30, 50, 70
- Eccentricity distance(e) : 0㎜, 25㎜, 50㎜, 75㎜, 100㎜
- Curvature : A Single Curvature, A Double Curvature
- On the symmetrical end-moment, On the asymmetrical end-moment
4. Beam test
- A kind of steel : Stainless steel(STK 304 TKC)
- Section shape : Circular hollow section(○-101.6×3.0)
- Diameter-thickness ratio : D/t - 34
- Slenderness ratio() : 30, 50, 70
The strength assessment method using theoretical analysis assessed the strength as it maintained a constant axial force on the steel hollow section column and assumed that the steel hollow section was subjected to full plastic stress according to the increase in the load of the moment when the moment was operated.
When the axial force and moment were operated, the full plastic stress block of the sectional factor of the stainless steel circular hollow section was calculated, by leading the M-P interaction from the equilibrium condition of force according to the location of the neutral axis and considering the P-δ effect based on the changes in the slenderness ratio(moment extension coefficient: ).
On the evaluation of the maximum strength of the stainless steel square hollow section, the following were assumed:
1. The shape of the section is circular hollow section;
2. The stainless steel circular hollow section should remain a plane after its strain;
3. Under the full plastic stress condition, the tensile stress and the compressive stress on the section all performed rectangular stress distribution; and
4. For the effects of the sloping of the materials and the eccentric load, the moment expansion coefficient() and the stress reduction coefficient(φ = 0.85) were applied.
- Alternative Title
- Strength of Stainless Steel Circular Hollow Section Beam-Columns
- Alternative Author(s)
- prak, Jae-seon
- Affiliation
- 조선대학교 대학원
- Department
- 일반대학원 건축공학과
- Advisor
- 양영성
- Awarded Date
- 2009-08
- Table Of Contents
- ABSTRACT
1. 서론 1
1.1 연구배경 및 목적 1
1.1.1 연구배경 1
1.1.2 연구목적 4
1.2 연구내용 및 방법 5
1.2.1 연구내용 5
1.2.2 연구방법 7
1.2.2.1 스테인리스 원형강관 보-기둥의 실험적 연구 7
1.2.2.2 스테인리스 원형강관 보-기둥의 내력평가 8
1.3 기존의 연구 9
1.4 스테인리스강 12
1.4.1 스테인리스 강종 표기 13
1.4.2 스테인리스강의 분류 14
1.4.3 주성분에 의한 분류 및 특성 16
1.4.4 금속조직상의 분류 및 특성 19
1.4.5 스테인리스강의 특징 21
1.4.6 스테인리스강의 제조공정 23
1.4.7 스테인리스강의 부식(腐蝕) 25
2. 실험 및 실험방법 30
2.1 실험기기 30
2.2 재료실험 31
2.2.1 인장강도실험 31
2.2.1.1 실험계획 31
2.2.1.2 실험방법 32
2.2.2 Stub-column 실험 34
2.2.2.1 실험계획 34
2.2.2.2 실험방법 35
2.3 부재실험 36
2.3.1 중심압축 하중을 받는 기둥 37
2.3.1.1 실험계획 37
2.3.1.2 실험방법 37
2.3.2 휨과 축력을 받는 보-기둥 40
2.3.2.1 실험계획 40
2.3.2.2 실험방법 43
2.3.3 휨을 받는 보 48
2.3.3.1 실험계획 48
2.3.3.2 실험방법 48
3. 실험결과 50
3.1 재료실험 50
3.1.1 인장강도실험 50
3.1.2 Stub-column 실험 52
3.2 부재실험 54
3.2.1 중심압축 하중을 받는 기둥 54
3.2.1.1 기둥의 최대내력 54
3.2.1.2 내력-변위 관계 55
3.2.2 휨과 축력을 받는 보-기둥 58
3.2.2.1 최대내력 및 모멘트 60
3.2.2.2 내력-변위 관계 72
3.2.2.3 모멘트()-회전각() 관계 96
3.2.3 휨을 받는 보 109
3.2.3.1 최대 휨내력 109
3.2.3.2 휨내력-처짐 관계 111
3.2.3.3 모멘트()-회전각() 관계 112
3.3 소결 113
4. 보-기둥의 내력평가 116
4.1 전소성(全塑性) 이론해석에 의한 평가 116
4.1.1 등가(等價)좌굴길이계수(K) 116
4.1.2 전소성내력(全塑性耐力) 118
4.1.3 실험결과와 이론해석결과 비교 120
4.2 각국 기준식에 의한 평가 130
4.2.1 각국 기준식 130
4.2.2 실험결과와 각국 기준식 비교 136
4.3 보-기둥의 적용식 147
4.3.1 좌굴강도계수 147
4.3.2 모멘트확대계수 148
4.4 제안식 평가 150
4.4.1 실험결과와 제안식 비교 150
4.4.2 제안식과 각국 기준식 비교 160
4.5 소결 162
5. 결론 165
참고문헌 168
부록1. 기호 176
부록2. 실험사진 179
- Degree
- Doctor
- Publisher
- 조선대학교 대학원
- Citation
- 박재선. (2009). 스테인리스 원형강관 보-기둥의 내력에 관한 연구.
- Type
- Dissertation
- URI
- https://oak.chosun.ac.kr/handle/2020.oak/8290
http://chosun.dcollection.net/common/orgView/200000238397
- Appears in Collections:
- General Graduate School > 4. Theses(Ph.D)
- Files in This Item:
-
-
Download
스테인리스 원형강관 보-기둥의 내력에 관한 연구.pdf
기타 데이터 / 15.98 MB / Adobe PDF
-
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.