Geotechnical earthquake engineering for the detailed design of the 1915 Çanakkale bridge

Author:

Nicosia Giovanni Li Destri1,Sbitnev Andrey1,Zhang Yu2,Schunk Michael1

Affiliation:

1. COWI A/S, Kongens Lyngby, Denmark

2. COWI A/S, Seattle, WA, USA

Abstract

<p>The paper provides a summary and description of the geotechnical earthquake engineering aspects related to the detailed design and construction of the record-breaking 1915 Çanakkale suspension bridge with a 2023 m long main span, 770 m long side spans and approach bridges of 365 m and 680 m. The main steel bridge foundations comprise two concrete caisson foundations placed on soil improved by steel pile inclusions, two gravity-based concrete anchor blocks and two side span piers founded on bored piles. The post tensioned concrete approach bridges are supported by piers on bored piles, which – where needed – are seismically protected by ground improvement consisting of deep soil mixing. The paper briefly describes the main features of the seismotectonic setting and the derivation of the effective input motion used in the bridge global structural model. The derivations of the foundations’ dynamic impedances and the link to the site response are described. The design and construction of the foundation systems, consisting of both soil improvement and the foundation elements themselves, and the interaction with the site response analysis, the liquefaction hazard and lateral soil deformation assessments are described. 2D nonlinear time history analyses for the evaluation of the ground (slope movements and the derivation of kinematic forces on the piles supporting European and Asian approach bridges and side span piers are also illustrated. Finally, a brief description of the monitoring system related to geotechnical earthquake response and its rational is presented.</p>

Publisher

International Association for Bridge and Structural Engineering (IABSE)

Reference17 articles.

1. AASHTO, (2011). "Guide specifications for LRFD Seismic bridge design", 2nd edition by the American Association of State Highway and Transportation Officials (AASHTO)

2. Beaty, M.H. and Byrne, P.M., (2011). "Documentation Report: UBCSAND Constitutive Model"

3. CPT-Based Liquefaction Triggering Procedure;Ross W. Boulanger;Journal of Geotechnical and Geoenvironmental Engineering

4. COWI, (2022). "IBDAS, Integrated Bridge Design and Analysis System"

5. Foundation Vibrations

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. The 1915 Çanakkale Bridge – Design and Construction of Substructure;IABSE Symposium, Istanbul 2023: Long Span Bridges;2023

2. Innovative geotechnical solutions to meet the demands of the1915 Çanakkale bridge;IABSE Symposium, Istanbul 2023: Long Span Bridges;2023

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