IMPROVING THE SEISMIC SAFETY OF PRESTRESSED CONCRETE BRIDGES

THIS PAPER SUGGESTS POSSIBLE DESIGNS TO IMPROVE THE SAFETY OF PRESTRESSED CONCRETE BRIDGES IN AREAS WHERE EARTHQUAKES ARE LIABLE TO OCCUR. THE FOLLOWING PROPOSALS ARE MADE: (1) THE SUPERSTRUCTURE SHOULD HAVE A CONTINUOUS DECK BETWEEN ABUTMENTS OR GROUP PIERS AND BE ALLOWED TO FLOAT ON SLIDING BEARINGS, SLENDER OR PENDULUM COLUMNS; (2) THE AMOUNT OF DISPLACEMENT SHOULD BE LIMITED DEPENDING ON THE PROBABLE MAGNITUDE OF EARTHQUAKE IN THE REGION; AND (3) THE DESIGN LOAD OF COLUMNS SHOULD BE INCREASED AND THE TRANSVERSE REINFORCEMENT OF COLUMNS CONSIDERABLY STRENGTHENED BY USING SMALL SPACING OF TIES.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08879672
• Authors:
  • LEONHARDT, F
• Publication Date: 1972-11-12

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 37-44
• Serial:
  • PRECAST/PRESTRESSED CONCRETE INSTITUTE. JOURNAL
  • Volume: 17 N
  • Publisher: Precast/Prestressed Concrete Institute
  • ISSN: 0887-9672

Subject/Index Terms

• TRT Terms: Bearing capacity; Bridge decks; Bridge design; Bridge piers; Bridge superstructures; Bridges; Columns; Concrete bridges; Dislocation (Geology); Earthquake resistant design; Earthquake resistant structures; Earthquakes; Loads; Prestressed concrete; Safety; Structural design
• Subject Areas: Bridges and other structures; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00210235
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: TRIS
• Created Date: May 24 1974 12:00AM