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Safety examination of existing concrete structures using the global resistance safety factor concept

Publications associées (88)

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Thermo-mechanical response of UHPFRC at early age — Experimental study and numerical simulation

Eugen Brühwiler, Emmanuel Denarié, Hamid Sadouki, Aicha Kamen

The thermal effects on the Ultra High Performance Fiber Reinforced Concrete (UHPFRC) behavior are still not completely known. Under high temperatures, the processes that interact at early age are thermo-activated. All the experimental results obtained with ...

2008

Interaction sol-structure dans le domaine des tranchées couvertes

Sylvain Plumey

The present research on cut-and-cover tunnels gives a theoretical contribution to the understanding of the behaviour of these structures up to their ultimate limit state. A simplified method inspired on the convergence-confinement method is investigated an ...

EPFL2007

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

An X-ray absorption spectroscopy study of an oxide dispersion strengthened steel

Manuel Alexandre Pouchon, Wolfgang Hoffelner

Oxide dispersion strengthened (ODS) steels are being investigated as possible structural material for components of future nuclear power plants. The dispersoids in the matrix (yttria particles) serve as pinning points for moving dislocations, and thereby i ...

Elsevier2007

Long-term performance of a glass fiber-reinforced polymer truss bridge

Thomas Keller, Yu Bai, Till Vallée

In the summer of 2005, after eight years of use as a temporary bridge during the winter, the Pontresina Bridge for pedestrians was transported to the Swiss Federal Institute of Technology Lausanne for a detailed assessment of the structural safety, service ...

2007

Computer-Based Development of Stress Fields

Neven Kostic

Computer-aided approaches for the efficient development of suitable stress fields are useful tools for the structural design of concrete structures. The paper describes a new procedure that is used within a previously proposed approach for the automatic ge ...

Proceedings of the 6th Int. PhD Symposium in Civil Engineering, Zurich 20062006

Possibilites for Structural Improvements in the Design of Concrete Bridges

Ana Spasojevic

This paper presents the concept and the current state of a research investigating possibilities for further evolutions in medium span concrete road bridges. The main parameters of the study are the structural shape, the type of materials used and their dis ...

Proceedings of the 6th Int. PhD Symposium in Civil Engineering, Zurich 20062006

The electrical conductivity of microcellular metals

Andreas Mortensen, Ludger Weber

The electrical conductivity of metallic foams varies strongly with porosity. Data are presented for replicated open-pore microcellular metal over a wide range of relative density. These data, together with data from the literature for different foam struct ...

2006

Connexions par adhérence pour les ponts mixtes acier-béton

Michel Thomann

When building new bridge structures, or widening or replacing existing bridges, the duration of on site work has a significant influence not only on the costs, but also on the potentially harmful effects (noise, pollution, traffic jam, deviation) of the co ...

EPFL2005

Structural Behavior of Tension Members in Ultra High Performance Concrete

Aurelio Muttoni, Jörg Jungwirth

The paper presents a study on the tensile behavior of UHPC conducted at the structural concrete laboratory at the Swiss Federal Institute of Technology in Lausanne (EPFL). Material tests and tests on structural members with reinforcement bars have been per ...

International Symposium on Ultra High Performance Concrete2004