WHAT HAVE BEEN ACCOMPLISHED:
JMEC was part of the EQE design team for the seismic vulnerability study of the Carquinez Bridge with main span of 1,100'. The West Span was of riveted steel construction, and the East Span was of welded steel construction.
JMEC was responsible for the review of seismic analysis results, and the preliminary retrofit design for the East Span. Preliminary retrofit measures and details were developed for the following:
JMEC was part of the EQE design team for the seismic vulnerability study of the Carquinez Bridge with main span of 1,100'. The West Span was of riveted steel construction, and the East Span was of welded steel construction.
JMEC was responsible for the review of seismic analysis results, and the preliminary retrofit design for the East Span. Preliminary retrofit measures and details were developed for the following:
- Selective superstructure member strengthening by replacing bolts and adding cover plates
- Strengthening of floor beam to truss connections
- Strengthening of steel towers
- Retrofit tower base connections
- Strengthening of shear locks at expansion joints
- Strengthening of suspended spans
- Construct catch blocks and shear keys at abutment
- Mobilize bridge deck by making bridge deck composite
- Provide gaps at Expansion Joints
Project Role: Subconsultant for Bridge Design
Clients: California Department of Transportation
EQE International
Clients: California Department of Transportation
EQE International
Special Issues: The west span (SB) was later replaced by a new suspension bridge and the east span (NB) was retrofitted.
Schedule: Evaluation was completed in 1993
Schedule: Evaluation was completed in 1993
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165 Lennon Lane, Suite 106, Walnut Creek, CA 94598
Tel: (925) 944-8999 Fax: (925) 944-9998
165 Lennon Lane, Suite 106, Walnut Creek, CA 94598
Tel: (925) 944-8999 Fax: (925) 944-9998
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