Self-centering connections for traffic sign supporting structures.

Details

• Creators:
  Lin, Ying-Cheng ; Vahid, S.
• Corporate Creators:
  University of Alabama in Huntsville
• Subject/TRT Terms:
  • Steel structures
  • Traffic signs
  • Structural connection
  • Sign supports
  • Deformation
  • Wind
  • Design
  • Computer models
• Publication/ Report Number:
  ALDOT Project 930-865R
• Resource Type:
  Tech Report
• Geographical Coverage:
  Alabama
• Corporate Publisher:
  Alabama. Dept. of Transportation
• Abstract:
  Steel structures supporting traffic sign panels are designed as intended to dissipate energy by ; yielding structural members during severe wind loading (ex. strong hurricanes). Yielding results ; in inelastic deformations, which are permanent damage to structural members. Structures with ; permanent deformations present the out-of-plumb appearance. Damage might be repairable; ; however, deconstruction and replacement of an off-centered structure with a new structure is ; usually more economical. If a new design approach that controls damage and avoids replacement ; can be developed, the direct and indirect costs of post-extreme-wind repair for traffic sign ; supporting structures can be saved enormously. ; At present, the design approach mitigating damage for traffic sign supporting structures under ; extreme wind loads are undeveloped. This research conducts an exploratory study on the new ; design method of “self-centering connections,” termed “SC connections.” The scopes of this ; research project are: (1) design equations and criteria development; and (2) validation through ; numerical analyses.
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• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/29613/dot_29613_DS1.pdf
• File Type:
  [PDF - 1013.55 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:5710fe24daf3a853fb70c99dc9ae0d69fe9d3f004f0fc9a58ebf7ab0d7840631