Concept

Prestressed structure

Publications associées (11)

Next generation synthetic fibers UHPFRC for sustainable structural applications

The ever-increasing demand for rehabilitation of existing structures and construction of new ones, along with environmental issues of the construction sites represent a heavy burden for society in terms of economy and environment. Meanwhile, Ultra-High Per ...

EPFL2019

CFRP Strengthening and Long-Term Monitoring of an Old Metallic Roadway Bridge in Melbourne

Ardalan Hosseini, Masoud Motavalli, Elyas Ghafoori

This study gives an overview on carbon fibre-reinforced polymer (CFRP) strengthening and wireless sensor network (WSN) monitoring of a 121-year-old metallic roadway bridge in Melbourne, Australia. A flat prestressed unbonded retrofit (FPUR) system was deve ...

IABSE2019

Prestressed CFRP-strengthening and long-term wireless monitoring of an old roadway metallic bridge

Ardalan Hosseini, Masoud Motavalli, Elyas Ghafoori

This paper presents an application of prestressed carbon ﬁber-reinforced polymer (CFRP) plates for the strengthening of metallic girders of a roadway bridge in Melbourne, Australia. The study also describes the application of a wireless sensor network (WSN ...

2018

Load path and prestressing in conceptual design related to Maillart’s Vessy bridge

Corentin Jean Dominique Fivet

This paper analyses Maillart’s Vessy Bridge from a design point of view using thrust lines. As it has previously been shown that Robert Maillart used graphic statics to design the line and the structural features of his bridges, it proves appropriate to re ...

2014

Influence de la précontrainte sur la résistance au poinçonnement de dalles en béton armé

Thibault Clément

Flat slabs are commonly used in Switzerland but also in north America and in many European countries. Slab bridges are also a typical solution for crossing of motorways for example. In both cases, supporting a slab by columns is justified by the simplicity ...

EPFL2012

Fatigue strengthening of damaged metallic beams using prestressed unbonded and bonded CFRP plates

Matteo Galli, Masoud Motavalli, Andrin Herwig, Elyas Ghafoori

Bonded fiber reinforced polymers (FRPs) reinforcement systems have traditionally been found to be an efficient method for improving the lifespan of fatigued metallic structures and have attracted much research attention. Nevertheless, the performance of a ...

Elsevier2012

Shear strength of thin-webbed post-tensioned beams

Aurelio Muttoni, Miguel Fernández Ruiz

This paper investigates the load-carrying mechanisms and the strength of thin-webbed, post-tensioned beams failing by crushing of the web. The shear strength in these members is significantly reduced because of the state of cracking in the web and because ...

ACI Structural Journal2008

Structural analysis of a composite bridge structure combining UHPFRC and prestressed concrete

Eugen Brühwiler, Hamid Sadouki, Cornelius Oesterlee

Reinforced concrete being the most applied construction material today performs very well in most applications but still lacks durability under severe environmental conditions. Especially existing structures built decades ago show degradation. Using Ultra- ...

Uni Kassel2008

Experimental investigation on the load-carrying capacity of thin webs including post-tensioning tendons

Aurelio Muttoni, Miguel Fernández Ruiz, Eckart Hars

The presence of post-tensioning tendons in webs decreases the load-carrying capacity of the compression struts that are necessary to transfer shear forces. This effect has been known for a long time, but was initially not included in design codes. In parti ...

fib Symposium, Dubrovnik 20072007

On Development of Suitable Stress Fields for Structural Concrete

Aurelio Muttoni, Miguel Fernández Ruiz

Strut and tie models and stress fields are methods that can be used for the dimensioning and detailing of reinforced and prestressed concrete structures as well as for the check of existing ones. This paper presents an innovative approach towards the autom ...

ACI, Structural Journal2007

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