냉간성형 HSS 가새부재의 판폭두께비에 따른 구조성능 평가

다국어 초록 (Multilingual Abstract)

Braced frames have teen widely used in buildings due to their large lateral stiffness and strength This study investigated the seismic behaviors of cold-formed Hollow structural section(HSS) bracing members For this purpose, experimental tests were earned out using quasi static reversed cycle loading For selecting the loading share for the experimental tests, a three story special concentrically braced frame was designed according to AlSC LRFD Manual(2001), Then nonlinear lime history analysis was conducted using earthquake ground motions. This analytical study observed that the drifts of brace members ill compression and tension were almost identical The symmetric behavior ill tension and compression can be attributed to the strong beams designed for SCBF that should resist the unbalanced axial loads induced by connected bracing members Thus, symmetric loading shape was adopted Particularly, this study investigated the effect of a width-thickness ratio(u√t ratio) on seismic behavior of HSS bracing members This study shows that IISS bracing members with a small wit ratio could not guarantee the larger amount of energy dissipation compared to those having a larger wit ratio The bracing members having a small wit ratio experienced fracture at the slotted end connection in the early stage of the test.<br/>

목차 (Table of Contents)

• Abstract
  
• 1. 서론
  
• 2. 기존연구 분석
  
• 3. 실험체 계획 및 설치
  
• 4. 실험결과
  
• 5. 판폭두께비에 따른 실험체의 변형특성
  
• 6. 결론
  
• 7. 향후 연구과제
  
• 참고문헌

참고문헌 (Reference)

1 Zhao, "Void-Filled Cold-Formed Rectangular Hollow Section Braces Subjected to Large Deformation Cyclic Axial Loading" 128 (128): 507-514, 2002

2 V, "University of California" 1993.

3 Black, "Steel Struts under Severe Cyclic Loadings Journal of Structural Engineering Division" pp.1857-18811981.

4 AISC, "Seismic provisions for structural steel buildings" American Institute of Steel Construction, Chicago, Illinois, 2002

5 S. S, "Seismic Behavior of Hollow and Concrete-filled Square Tubular Bracing Members Department of Civil Engineering The University of Michigan" 1987.

6 SAC, "Protocol for fabrication, Inspection, testing, and documentation of beam-column connection tests and other experimental specimens" Rep. No. SAC/BD-97/02, SAC Joint Venture, Richmond, Calif 1997

7 AISC,, "Manual of steel construction, LRFD 3rd Edition" American Institute of Steel Construction 2001

8 Liu, "Investigation of concrete-filled steel tubes under cyclic bending and buckling" The University of Michigan 1987.

9 L. F, "Inelastic Cycles of Axially Loaded Steel Members Journal of Structural Division" 104 : 947-959, 1976.

10 Jain, "Hysteretic Response of Restrained Steel Tubes" 104 (104): 897-910, 1978.June

11 Goel, "Cyclic In-Plane Buckling of Double-Angle bracing Journal of Structural Engineering" 110 : 2036-2055, 1984.

12 Shaback, "Behavior of square hollow structural steel braces with end connections under reversed cyclic axial loading" 30 : 745-753, 2003