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Seismic behavior of lightly reinforced concrete squat shear walls

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Quasi-static cyclic tests of two U-shaped reinforced concrete walls

Katrin Beyer, Alessandro Dazio

U-shaped or channel-shaped walls are frequently used as lateral strength providing members in reinforced concrete (RC) buildings since their form does not only provide strength and stiffness in any horizontal direction but is also well suited to accommodat ...

Taylor & Francis2008

Punching shear strength of R/C bridge cantilever slabs

Aurelio Muttoni, Miguel Fernández Ruiz, Rui Vaz Rodrigues

This paper presents the results of six tests on R/C bridge cantilever slabs without shear reinforcement subjected to concentrated loading. The specimens represent actual deck slabs of box-girder bridges scaled 3/4. They were 10mlong with a clear cantilever ...

Engineering structures2008

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

Inelastic wide-column models for U-shaped reinforced concrete walls

Katrin Beyer, Alessandro Dazio

Although core structures are often used in reinforced concrete buildings as members providing lateral strength and stiffness, experimental and numerical studies on their inelastic behavior are scarce. In an experimental program recently completed at the ET ...

Taylor & Francis2008

Strain-temperature hysteresis in concrete under cyclic freeze-thaw conditions

Shashank Bishnoi

Submerged concrete specimens with 0.55 and 0.65 water-cement ratio were studied under cyclic freeze-thaw conditions at two different rates of temperature change. The strain variation at the centres of each of the specimens was measured using embedded strai ...

2008

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

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

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

Static cyclic response of masonry walls retrofitted with fiber-reinforced polymers

Pierino Lestuzzi, Marc Badoux, Mohamed Elgawady

The behavior of seven one-half scale masonry specimens before and after retrofitting using fiber-reinforced polymer (FRP) is investigated. Four walls were built using one-half scale hollow clay masonry units and weak mortar to simulate walls built in centr ...

American Society of Civil Engineers2007

Shear Strength of RC Bridge Deck Cantilevers

Rui Vaz Rodrigues

An experimental and theoretical investigation of the shear strength of reinforced concrete slabs without shear reinforcement is under way at the Ecole Polytechnique Fédérale de Lausanne. The first part of the program consists of 6 tests on two large scale ...

6th International PhD Symposium in Civil Engineering, IBK Publikation SP-0152006