DYNAMIC LOAD SIMULATOR: DEVELOPMENT OF A PROTOTYPE

This technical notes describes prototype development of a next generation of structural testing facility referred to here as a dynamic load simulator (DLS). The DLS simulates dynamic loading environment such as wind, waves or earthquake effects, utilizing an electric or hydraulic actuator system instead of conventional facilities such as a wind tunnel, wave tank or shaking table. Similitude requirements or the system capacity often preclude testing of large-scale models utilizing these facilities. In conventional test facilities continuous space-time variations of aerodynamic and hydrodynamic pressure fields and inertial loads are introduced to model the effects of wind, waves or earthquakes. On the other hand, DLS provides discrete point loads utilizing a single- or multiactuator system to produce global dynamic load characteristics by taking into account the overall spatiotemporal correlation. A suite of typical loading protocols that includes sinusoidal, random correlated Gaussian, and non-Gaussian variations are simulated and verified experimentally utilizing single and dual actuator systems.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339399
• Supplemental Notes:
  • Page range: pp 1310-1315.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Yalla, S K
  • Kareem, A
  • Kabat, S
  • Haan Jr, F L
• Publication Date: 2001-12

Language

• English

Media Info

• Features: Figures; References;
• Pagination: 6 p.
• Serial:
  • Journal of Engineering Mechanics
  • Volume: 127
  • Issue Number: 12
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9399
  • EISSN: 1943-7889
  • Serial URL: http://ascelibrary.org/journal/jenmdt

Subject/Index Terms

• TRT Terms: Actuators; Dynamic loads; Earthquake engineering; Earthquakes; Load tests; Prototypes; Shaking table tests; Structural tests; Test facilities; Waves; Wind; Wind tunnels
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00821106
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 2 2001 12:00AM