Appropriate Seismic Regulations for Urban Structures

In the event of an earthquake, bridges are vulnerable to damage or collapse. Bridges are seldom subjected to strong earth shaking but often subjected to thermal extremes requiring expansion and contraction joints for normal use. These movement joints often make earthquake resistance design difficult. Bridges have been the subject of major changes in design criteria in recent years to prevent the frequent collapse of critical spans. Short span bridges have special requirements for abutments, bearings and provisions for thermal movements. Any intermediate columns need to be ductily detailed. Piles need ductile confinement as pile failures have been documented beneath large concrete abutments. Restrainers are essential to prevent large movements of the bridge deck during seismic events. Long span bridges have similar needs as well as the complication of tall columns. These bridges need highly confined ductile columns that can absorb considerable energy without loss of strength and function. Bridges are important structures and essential for evacuations, relief and reconstruction after major earthquakes. New, stringent design criteria is essential in seismically active regions so these critical bridges can be operational after brief inspections and minor repairs.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9783857481185
• Corporate Authors:

  International Association for Bridge and Structural Engineering

  ETH-Honggerberg, Wolfgang-Pauli-Strasse 15
  Zurich 8093,   Switzerland  CH-8093
• Authors:
  • Wyllie, Loring A
• Conference:
  • 17th Congress of IABSE. Creating and Renewing Urban Structures
  • Location: Chicago IL, United States
  • Date: 2008-9-17 to 2008-9-19
• Publication Date: 2008

Language

• English

Media Info

• Media Type: Print
• Pagination: pp 112-116
• Monograph Title: 17th Congress of IABSE. Creating and Renewing Urban Structures. Tall Buildings, Bridges and Infrastructure

Subject/Index Terms

• TRT Terms: Bridge abutments; Bridge bearings; Bridge design; Collapse; Cracking; Earthquake resistant design; Long span bridges; Seismicity
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01358887
• Record Type: Publication
• ISBN: 9783857481185
• Files: TRIS
• Created Date: Dec 16 2011 2:46PM