Posted March 8, 200816 yr comment_6693 NTEGRAL BRIDGE CONCEPT APPLIED TO REHABILITATE AN EXISTING BRIDGE AND CONSTRUCT A DUAL-USE BRIDGE R. Jayaraman, PB Merz and McLellan Pte Ltd, Singapore Abstract In this article two case studies are presented where the integral bridge concept has been advantageously adapted: strengthening of an existing bridge & construction of a new dual-use bridge. During the investigations, assessment & upgrading of an existing prestressed concrete bridge over a tidal river, a number of proposals for strengthening the bridge to carry heavier vehicular loads were studied. Conversion of the existing simply supported deck to be integral with abutments was found to suit the site conditions. Effectiveness of strengthening were confirmed by monitoring system using strain gages & accelerometers. In the second case integral bridge concept was successfully implemented in a D & B contract. This dual use bridge across a canal carries six circuits of 400kV lines at soffit level and would be carrying road traffic in the transverse direction in the future. The integral bridge using two precast posttensioned girders connected by cast in-situ diaphragms and deck slab presented many interesting features. http://www.zshare.net/download/4472347b75f483
March 8, 200816 yr comment_6694 Merci Rachid pour ce livre de réhabilitation des ponts .. C'est un sujet rarement abordé par la littérature.. Tu es en forme ce soir mon frère.. tbarkallah 3lik.. :frime1:
March 8, 200816 yr Author comment_6698 Merci Rachid pour ce livre de réhabilitation des ponts .. C'est un sujet rarement abordé par la littérature.. Tu es en forme ce soir mon frère.. tbarkallah 3lik.. :frime1: wallah , je suis fatigué , non en forme ..............
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comment_6693NTEGRAL BRIDGE CONCEPT APPLIED TO REHABILITATE AN
EXISTING BRIDGE AND CONSTRUCT A DUAL-USE BRIDGE
R. Jayaraman, PB Merz and McLellan Pte Ltd, Singapore
Abstract
In this article two case studies are presented where the integral bridge concept
has been advantageously adapted: strengthening of an existing bridge & construction
of a new dual-use bridge. During the investigations, assessment & upgrading of an
existing prestressed concrete bridge over a tidal river, a number of proposals for
strengthening the bridge to carry heavier vehicular loads were studied. Conversion of
the existing simply supported deck to be integral with abutments was found to suit the
site conditions. Effectiveness of strengthening were confirmed by monitoring system
using strain gages & accelerometers. In the second case integral bridge concept was
successfully implemented in a D & B contract. This dual use bridge across a canal
carries six circuits of 400kV lines at soffit level and would be carrying road traffic in
the transverse direction in the future. The integral bridge using two precast posttensioned
girders connected by cast in-situ diaphragms and deck slab presented
many interesting features.
http://www.zshare.net/download/4472347b75f483