ESWP: International Bridge Conference®: Seismic

Seismic

Wednesday, June 4, 2008
1:30PM - 3:45PM

Chair: Gary Runco, STV, Inc., Pittsburgh, PA

IBC 08-95 - An Overview of Current State of the Practice for Seismic Design & Retrofit of Bridges
W. Phil Yen, FHWA,Turner Fairbank Highway Research Center, McLean, VA; Jerome O'Connor, MCEER, University at Buffalo, Buffalo, NY

There have been many recent changes in the field of earthquake engineering for highway bridges as a result of lessons learned from past events, funded research, and the development of new performance driven design philosophy based on consensus of best practice here and abroad. This paper will summarize current state of the practice for bridge design and retrofit. Particular attention will be given to the applied research that MCEER's team has conducted for Federal Highway Administration over the past five years that has contributed to these changes. Topics addressed will include performance based design, loss estimation and system analysis of the highway network, seismic retrofitting of bridges and other highway structures, seismic isolation and other innovative technologies, liquefaction, soil remediation, etc.

IBC 08-96 - Seismic Designs of I-195 Relocation Bridges, Providence, RI
Yihui Wu, Phd, PE, The Louis Berger Group, Needham, MA; Patricia Steere, PE, Maguire Group Inc., Providence, RI

16 new bridges were designed to replace the existing Rhode Island I-195 interchange, which includes steel network arch bridge, steel box girder curved spans, steel I girder curved span, pre-cast concrete span and rigid frame cast in place concrete spans supported on drilled shaft, driven pile and shallow foundations. Seismic design of these bridges for 2500 year return period earthquake, construction conflict and solution, and non-linear analysis are presented in this paper.

IBC 08-97 - Long Span Bridge Maintenance Program
Gilles Hovhanessian, Advitam, Velizy, France; Aris Vlamis-Stathopoulos, GEYFRA, Halandri, Greece

Most European bridges are built and operated by private companies within 30 to 70 year concession contracts. Comprehensive inspection & maintenance manual are put in place for every infrastructure to be operated by Vinci group. The paper will describe typical content of the manual and describe one particular application.

IBC 08-98 - Seismic Design of Partially Concrete-Filled Steel Box Bridge Piers
Iraj Mamaghani, University of North Dakota, Grand Forks, ND

The use of concrete-filled steel sections in structures generally leads to a more efficient and economic system for resisting seismic forces, because of their excellent seismic-resisting characteristics such as high ductility, improved strength and energy absorption capacity. This paper deals with the seismic design of partially concrete-filled steel box bridge piers. The seismic design concepts and some important characteristic parameters of thin-walled steel box bridge piers are presented. The main ideas underlying partially concrete-filled steel box columns are explained. A seismic design and an evaluation procedure accounting for the effects of residual stresses are presented.

IBC 08-99 - An Assessment of Damage to Peru's Highway System After the M8.0 Piseo Earthquake
Jerome S. O'Connor, MCEER, University at Buffalo, Buffalo, NY; Lucero Mesa, South Carolina DOT, Columbia, SC; Monique A. Nykamp, PE, Shannon & Wilson, Inc., Seattle, WA

The presentation will show how AASHTO designed structures fared and how the road system performed during this unusually long perio earthquake. It will show details that worked well and others that failed. It will illustrate why geotechnical considerations are paramount, and the value of considering multiple hazards when designing and retrofitting bridges.

This page was last modified: