RELIABILITY OF APPLIED SEMIACTIVE STRUCTURAL CONTROL SYSTEM

Research on semiactive control of structures has been carried out actively since the mid-1990s. After a theoretical and experimental study, a semiactive structural control system has been applied to an actual 5-story structure in 1998 by use of a continuous-variable semiactive hydraulic damper that has a maximum damping force of 1,000 kN. For application of the system, health monitoring, fail-safe operation, possibility of power failure, sensor malfunction, control device operation, computer, and communication system must be considered. In this paper, reliability of an operational semiactive structural control system is discussed from the view points of health monitoring of the system and fail-safe functions. Power failures, abnormal outputs of sensors, valve damages, and communication errors, are focused as main problems. Dynamic load and forced vibration tests were carried out to determine fail-safe functions. After completion of the system installation, monitoring for earthquake excitation was initiated. Results show the effectiveness of functioning of the system. Lastly, reliability of the system is confirmed and satisfactory performance is demonstrated.

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

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Kurata, N
  • Kobori, T
• Publication Date: 2003-7

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 914-921
• Serial:
  • Journal of Structural Engineering
  • Volume: 129
  • Issue Number: 7
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9445
  • Serial URL: http://ascelibrary.org/loi/jsendh

Subject/Index Terms

• TRT Terms: Damping (Engineering); Highway facilities; Magnetohydrodynamics; Structural engineering; Vibration control
• Uncontrolled Terms: Structural control systems
• Subject Areas: Bridges and other structures; Design; Highways; Planning and Forecasting; I21: Planning of Transport Infrastructure; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00960570
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 10 2003 12:00AM