WHAT HAVE BEEN ACCOMPLISHED:
JMEC was prime design consultant for preparing PS&E of six bridges, and was consultant for the independent check of PS&E for three other bridges. JMEC performed seismic analysis and design, determined retrofit strategies, prepared plans, specifications and estimates, and provided as-needed construction design support services.
JMEC has completed 3 steel railroad bridges seismic evaluation and retrofit design. Two of the bridges are shown. Bridge types included steel girders and steel trusses.
The bridges were evaluated and designed for no collapse criteria under the design earthquake. To minimize impacts to Railroad operations for both during and in service, the existing bearings were strengthened by stronger anchor rods to the abutments. The connections of the bearings to the steel superstructure were also strengthened by replacing with stronger high strength bolts.
The construction of the bridge retrofit was completed in conjunction with other roadway improvements.
JMEC was prime design consultant for preparing PS&E of six bridges, and was consultant for the independent check of PS&E for three other bridges. JMEC performed seismic analysis and design, determined retrofit strategies, prepared plans, specifications and estimates, and provided as-needed construction design support services.
JMEC has completed 3 steel railroad bridges seismic evaluation and retrofit design. Two of the bridges are shown. Bridge types included steel girders and steel trusses.
The bridges were evaluated and designed for no collapse criteria under the design earthquake. To minimize impacts to Railroad operations for both during and in service, the existing bearings were strengthened by stronger anchor rods to the abutments. The connections of the bearings to the steel superstructure were also strengthened by replacing with stronger high strength bolts.
The construction of the bridge retrofit was completed in conjunction with other roadway improvements.
Project Role: Prime Consultant for Bridge Design
Clients: Los Angeles County Department of Public Works
Clients: Los Angeles County Department of Public Works
Schedule: Construction was completed in 2010
UPRR over Cherry Avenue
Corporate Office
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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UPRR over Willow Street