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Numerical analysis of punching failure in reinforced concrete structures

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Multiaxial fatigue criterion accounting for anisotropy in forged components

Roland Logé

Numerical modelling of fatigue behavior for anisotropic structures has become critical for design applications. This is particularly true for forged components due to the intrinsic anisotropy of the material resulting from the process. The aim of this stud ...

2008

Innovation in use and research on cementitious material

Karen Scrivener

In this paper we discuss innovations in concrete technology which are currently being applied in the field-namely high and ultra high performance (strength), and self consolidating concrete. We discuss the factors which have enabled these developments and ...

2008

Innovation in use and research on cementitious material

Karen Scrivener

2008

Model for predicting the UHPFRC tensile hardening response

Eugen Brühwiler, Emmanuel Denarié, John Wuest

Ultra High Performances Fibre Reinforced Concretes (UHPFRC) are characterised by an extremely low permeability and outstanding mechanical properties. These characteristics make UHPFRC suitable for locally “harden” reinforced concrete structures subjected t ...

Uni Kassel2008

Post punching behaviour of reinforced concrete slab-column connections

Yaser Mirzaei

Reinforced concrete flat slabs are extensively used in buildings and parking garages. At the ultimate limit state, their design is usually governed by punching shear. In the case where no punching shear reinforcement is provided, failure develops in a brit ...

7th International fib Symposium in Civil Engineering2008

Numerical simulation of the non-isothermal mechanical behaviour of soils

Lyesse Laloui, Cane Cekerevac

Research interest in the thermo-mechanical behaviour of soils is growing as a result of an increasing number of geomechanical problems involving thermal effects. This paper concerns the constitutive modelling of non- isothermal mechanical behaviour of clay ...

2008

Shear strength of reinforced concrete bridge deck slabs

Rui Vaz Rodrigues

Reinforced concrete bridge deck slabs without shear reinforcement can be subjected to concentrated or distributed loads of important magnitude. Under these loads their structural response is not always ductile. In particular under concentrated loads their ...

EPFL2007

Comportement structural des bétons de fibres ultra performants en traction dans des éléments composés

John Wuest

Ultra high performance concretes (UHPFRC) are characterized by a dense matrix and a high fibre content. These materials exhibit exceptional mechanical and durability properties making them an ideal material for rehabilitating existing structures. The prima ...

EPFL2007

Multifunctional all-GFRP joint for concrete slab structures

Thomas Keller, Florian Riebel

An existing hybrid-GFRP/steel joint for load transfer and thermal insulation in concrete slab structures was developed into an all-GFRP joint. The new joint consists of a pultruded GFRP tensile/shear element anchored through adhesively bonded ribs in the c ...

2007

Quantitative microstructural characterisation of concrete cured under realistic temperature conditions

Xinyu Zhang

The curing temperature is known to influence the strength and durability of concrete. In general, curing at elevated temperature results in high early strength gain, but impairs the long-term strength and transport properties. Previous investigations have ...

EPFL2007