GENERATION OF SEISMIC FLOOR SPECTRA

A simple method is presented for generation of floor response spectra directly from a given ground response spectrum. A common practice to generate floor spectra is to carry out time-history analysis for a ground spectrum-consistent accelerogram. Unless an ensemble of such accelerograms is used the response results cannot be relied upon, but the use of an ensemble of accelerograms is cumbersome and costly. A method which can directly use a prescribed spectrum is preferred. The proposed method is based on transfer characteristics of the structure for random excitation, and makes use of the structural frequencies, mode shapes and participation factors, and the prescribed spectrum to generate floor spectra. In the paper, the use of the proposed method is demonstrated by generating floor spectra of a building. The proposed method is simple and especially convenient for use on digital computers.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339399
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Singh, Mahendra Pratap
  • 0009-0003-6632-6986
• Publication Date: 1975-10

Media Info

• Features: Appendices; Figures; References;
• Pagination: p. 593-607
• Serial:
  • Journal of Engineering Mechanics
  • Volume: 101
  • Issue Number: EM5
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9399
  • EISSN: 1943-7889
  • Serial URL: http://ascelibrary.org/journal/jenmdt

Subject/Index Terms

• TRT Terms: Accelerographs; Digital computers; Earthquakes; Electromagnetic spectrum; Seismicity
• Uncontrolled Terms: Response spectra
• Old TRIS Terms: Seismic properties
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00127196
• Record Type: Publication
• Report/Paper Numbers: ASCE #11651 Proceeding
• Files: TRIS
• Created Date: Dec 16 1975 12:00AM