design of the dubai metro light rail vi
001
Design of the Dubai Metro Light Rail viaducts - Substructure
David A Smith
Chris R Hendy
BEng CEng MICE
MA(Cantab) CEng FICE
Group Manager
Special Structures,
Highways & Transportation
Atkins
Epsom, UK
Head of Bridge Design and Technology
Highways & Transportation
Atkins
Epsom, UK
Abstract
The Dubai Metro Light Rail scheme is a flagship project in the United Arab Emirates. It will be the longest, fully automated rail system in the world, and is currently one of the largest civil engineering projects under construction.
The first section of the rail system is due to be opened in September 2009. This paper describes the scheme outline and contractual set-up for the viaduct design and discusses the design and construction of the viaduct substructure. In particular, the design methodologies used for the piled foundations, single reinforced concrete columns and prestressed concrete pier heads are discussed as well as the design of elastomeric bearings used extensively for most of the viaduct spans. Seismic loading governed the design of many of the foundations and the seismic analysis and design methodology adopted are discussed, together with specific reinforcement detailing requirements. Rail-structure interaction analysis and design are also covered. Other critical design issues resolved include, fatigue performance of cranked reinforcement and the treatment; of the onerous construction loading from overhead gantries used to erect the precast deck segments.
1. Introduction and project background
In July 2005, the Government of Dubai Road and Transport
Authority (RTA) awarded a design and build contract to the
Dubai Rapid Link (DURL) consortium for the construction of the first and second stages of the Dubai Metro Red and Green Lines. The DURL consortium comprises the Japanese companies Mitsubishi Heavy Industries,
Mitsubishi Corporation, Obayashi Corporation and
Kajima Corporation together with Yapi Merkezi of Turkey.
Construction of the
Design of the Dubai Metro Light Rail viaducts - Substructure
David A Smith
Chris R Hendy
BEng CEng MICE
MA(Cantab) CEng FICE
Group Manager
Special Structures,
Highways & Transportation
Atkins
Epsom, UK
Head of Bridge Design and Technology
Highways & Transportation
Atkins
Epsom, UK
Abstract
The Dubai Metro Light Rail scheme is a flagship project in the United Arab Emirates. It will be the longest, fully automated rail system in the world, and is currently one of the largest civil engineering projects under construction.
The first section of the rail system is due to be opened in September 2009. This paper describes the scheme outline and contractual set-up for the viaduct design and discusses the design and construction of the viaduct substructure. In particular, the design methodologies used for the piled foundations, single reinforced concrete columns and prestressed concrete pier heads are discussed as well as the design of elastomeric bearings used extensively for most of the viaduct spans. Seismic loading governed the design of many of the foundations and the seismic analysis and design methodology adopted are discussed, together with specific reinforcement detailing requirements. Rail-structure interaction analysis and design are also covered. Other critical design issues resolved include, fatigue performance of cranked reinforcement and the treatment; of the onerous construction loading from overhead gantries used to erect the precast deck segments.
1. Introduction and project background
In July 2005, the Government of Dubai Road and Transport
Authority (RTA) awarded a design and build contract to the
Dubai Rapid Link (DURL) consortium for the construction of the first and second stages of the Dubai Metro Red and Green Lines. The DURL consortium comprises the Japanese companies Mitsubishi Heavy Industries,
Mitsubishi Corporation, Obayashi Corporation and
Kajima Corporation together with Yapi Merkezi of Turkey.
Construction of the
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