OPTIMAL CONTROL OF ADAPTIVE/SMART BRIDGE STRUCTURES

Active controllers can modify a structure's behavior during dynamic loadings, such as impact, wind, or earthquake loadings. These structures capable of self-modification are known as smart structures. Smart-structure technology has long-term value in preventing loss of life and damage to structure and its content, particularly for large structures with hundreds of members. The authors present a computational model for active control of large adaptive structures subjected to dynamic loadings such as impact, wind, and earthquakes. The governing differential equations of the open-loop and closed-loop systems are expressed, and a recursive approach is presented for calculating the response of the structure. A robust parallel-vector algorithm is developed for the recursive solution of the response of the open-loop and closed-loop systems. The computational model is applied to active control of large bridges. Investigators examine three schemes for optimal placement of controllers in bridge structures. Results are presented for single-span, multispan continuous, and curved steel-truss bridges.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339445
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Adeli, H
  • Saleh, A
• Publication Date: 1997-2

Language

• English

Media Info

• Features: Appendices; Figures; References;
• Pagination: p. 218-226
• Serial:
  • Journal of Structural Engineering
  • Volume: 123
  • Issue Number: 2
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9445
  • Serial URL: http://ascelibrary.org/loi/jsendh

Subject/Index Terms

• TRT Terms: Adaptive control; Algorithms; Bridges; Control loops; Differential equations; Dynamic loads; Earthquakes; Feedback control; Impacts; Mathematical models; Open systems architecture; Structural analysis; Structural mechanics; Wind
• Uncontrolled Terms: Bridge structures; Models; Structural response
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00735077
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 23 1997 12:00AM