Seismic Upgrading of Bridge Outrigger Knee Joint Systems PDF Download
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Author: Božidar Stojadinović
Publisher:
ISBN:
Category :
Languages : en
Pages : 428
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Book Description
Author: Božidar Stojadinović
Publisher:
ISBN:
Category :
Languages : en
Pages : 428
Get Book Here
Book Description
Author: Božidar Stojadinović
Publisher:
ISBN:
Category : Bridges, Concrete
Languages : en
Pages : 184
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Book Description
The collapse of the Cypress Street Viaduct during the 1989 Loma Prieta earthquake emphasized the vulnerability of elevated freeway bridge structures. A part of the joint Caltrans and University of California at Berkeley research project, initiated after the earthquake, focused on the outrigger knee joint systems found in bents of elevated freeway bridges. The investigation had two principal goals: to evaluate the behavior of the existing outrigger knee joint systems under a combined transverse and longitudinal loading and to devise and experimentally verify strategies for seismic upgrading of existing outrigger knee joints. The experiments on two half-scale as-built models confirmed the poor performance of existing outrigger knee joint systems observed after the earthquake. Two seismic upgrading strategies, a "ductile" and a "strong" strategy, were proposed and tested on prototype specimens. The "strong" strategy was chosen for the final seismic upgrade design. The variation of this strategy using a steel jacket, was recommended in the seismic upgrade design guidelines.
Author: David I. McLean
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 74
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Author:
Publisher:
ISBN:
Category : Buildings
Languages : en
Pages : 446
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Author: Kosalram Krishnan
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 392
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 352
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Author: Michael J. O'Rourke
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 828
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Book Description
This volume presents recent advances in research, practice, post earthquake investigation, and public policy in lifeline earthquake engineering as a discipline and as a component of infrastructure rehabilitation. Written by utility engineers, consultants, managers, and transportation agency personnel from various nations, papers review newer emerging topics of lifeline interaction and socio-economic effects, as well as hazard assessment methods, analysis procedures, and design approaches. Topics range from bridge analysis and rehabilitation to bridge earthquake damage assessment, electric power and communications to gas and liquid fuels. Case studies and papers detail the seismic assessment of offshore pipelines; above ground pipeline response to random ground motion; bridge prioritization for emergency responses; inspection and rehabilitation of tunnels across faults; and spectral characteristics of vertical ground motion in the Northridge and other earthquakes.
Author: Jason M. Ingham
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 242
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Author: Nasim Khalil Shattarat
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages :
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Author:
Publisher:
ISBN:
Category : Earthquake engineering
Languages : en
Pages : 836
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