Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
권호 표지
DOI QR코드

DOI QR Code

Rotation Performance Evaluation of Welded Unreinforced Flange-Welded Web(WUF-W) Moment Connections Using Finite Element Analysis Model

유한요소 모델을 이용한 WUF-W 모멘트 접합부의 회전성능평가

  • Received : 2011.10.31
  • Published : 2012.01.25
⟨ Previous Next ⟩

Abstract

The objective of a 3D finite-element study is to evaluate the rotation performance of Welded Unreinforced Flange-Welded web moment(WUF-W) connections for SMF System designed according to requirements of the current seismic codes. The analysis models using the general-purpose computer program ABAQUS are based on the exterior connection test results and conducted nonlinear analysis with the same boundary conditions and load protocol. The main variables of the analysis model were beam depth and slope of the weld access hole. The analytical results provided information on basic performance and the effects of these parameters using stress and strain indices. Based on the results of the analytical study, analysis models developed configuration of access-hole showed improved ductility capacity at critical location of moment connections.

Keywords

Acknowledgement

Supported by : 한국연구재단

References

  1. 황성훈, 문기훈, 한상환, 이진영(2010) "WUF-W 모멘트 접합부의 비탄성 반복 하중 실험", 대한건축학회논문집, 제 26권, 제10호, pp.61-68
  2. AISC. (2005a). "Seismic provisions for structural steel buildings." ANSI/AISC 341-05, American Institute of Steel Construction, Chicago, Ill.
  3. AISC. (2005b). "Specification for Structural Steel Buildings. " ANSI/AISC 360-05, American Institute of Steel Construction, Chicago, Ill.
  4. AISC. (2009). "Supplement No. 1 to Prequalified Connection s for Special and Intermediate Steel Moment Frames for Seismic Applications." ANSI/AISC 358-05s1-09, American In stitute of Steel Construction, Chicago, Ill.
  5. AWS. (2009). "Structural Welding Code-Seismic Supplement. " AWS D1.8/D1.8M, American Welding Society, Miami, FL.
  6. E.J. Kaufmann. (2001). Characterization of Cyclic Inelastic Strain Behavior On Properties of A572 Gr.50 and A913 Gr. 50 Rolled Sections, ATLSS Report No. 01-13.
  7. El-Tawil, S., Mikesell, T., Vidarsson, E. Kunnath, S-K. (1998). "Strength and Ductility of FR Welded-Bolted Connections." Report No. SAC/BD-98/01, SAC Joint Venture.
  8. HKS. ABAQUS user's manual. (2010). Version 6.10. Hibbit, Karlson & Sorenson, Inc.
  9. Hancock, J. W. and Mackenzie, A.C. (1976), "On the Mechanism of Ductile Fracture in High Strength steels Subjected to Multi-Axial Stress-States", Journal of Mech. Phys. Solids, Vol. 24, pp. 147-169. https://doi.org/10.1016/0022-5096(76)90024-7
  10. Lee, D., Cotton, S. C., Dexter, R. J., Hajjar, J. F., Ye, Y., and Ojard, S. D. (2002). "Column Stiffener Detailing and Pa nel Zone Behavior of Steel Moment Frame Connections." Structural Engineering Report No. ST-01-3.2, Department of Civil Engineering, University of Minnesota.
  11. Lee, C.-H., Jeon, S.-W., Kim, J.-H., and Uang, C.-M. (2005a). "Effects of panel zone strength and beam web connection method on seismic performance of reduced beam section steel moment connections." Journal of Structural Engineering, 131(12), 1854-1865. https://doi.org/10.1061/(ASCE)0733-9445(2005)131:12(1854)
  12. Ricles, J. M., Mao, C., Lu, L.-W., and Fisher, J. W. (2000). "Development and evaluation of improved details for ductile welded unreinforced flange connections." Report No. SAC/B D-00/24, SAC Joint Venture.
  13. Ricles, J. M., Mao, C., Lu, L.-W., and Fisher, J. W. (2002). "Inelastic Cyclic Testing of Welded Unreinforced Moment Connections." Journal of Structural Engineering, 128(4), 429-440. https://doi.org/10.1061/(ASCE)0733-9445(2002)128:4(429)
  14. SAC. (1997). "Protocol for fabrication, inspection, testing, a nd documentation of beam-column connection tests and ot her experimental specimens." Report No. SAC/BD-97/02, S AC Joint Venture, Sacramento, Calif.