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RISK-BASED REPLACEMENT STRATEGIES FOR REDUNDANT DETERIORATING REINFORCED CONCRETE PIPE NETWORKS

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German Concrete, 1819 - 1877

Salvatore Aprea

This dissertation originates from an investigation about the arising of the modern, German building expertise involving the use of concrete, which develops during the first three quarter of the 19th century against the backdrop of a general modernisation p ...

EPFL2015

Static and Fatigue Shear Strength of Reinforced Concrete Slabs Under Concentrated Loads Near Linear Supports

Francisco Manuel Maciel Natário

Reinforced concrete slabs without shear reinforcement under concentrated loads near linear supports are typical cases of bridge deck slabs, transfer slabs or pile caps. Such members are often designed or assessed in shear/punching shear with code provision ...

EPFL2015

Effect of load history on punching shear resistance of flat slabs

Thomas Keller, Robert Koppitz

The unloading of reinforced concrete slabs results in residual slab rotations and reloading to the same load results in irreversible rotation increases. Unloading and reloading (UR) cycles applied to non-strengthened and strengthened flat slabs may thus af ...

Elsevier2015

Achievements and Challenges in Machine Vision-Based Inspection of Large Concrete Structures

Large concrete structures need to be inspected in order to assess their current physical and functional state, to predict future conditions, to support investment planning and decision making, and to allocate limited maintenance and rehabilitation resource ...

Multi-Science Publ Co Ltd2014

Concrete, from archeology to invention 1700-1769

Roberto Gargiani

The reemergence in the early eighteenth century of the technology and use of concrete provide the starting point for this first volume of the Treatise on Concrete. In this book are described and analyzed, for the first time, the various contributions that ...

EPFL Press2013

Post-Punching Behavior of Flat Slabs

Aurelio Muttoni, Miguel Fernández Ruiz, Yaser Mirzaei

Reinforced concrete flat slabs are a common structural system for cast-in-place concrete slabs. Failures in punching shear near the column regions are typically governing at ultimate. In case no punching shear or integrity reinforcement is placed, failures ...

ACI Structural Journal2013

Background to the fib Model Code 2010 shear provisions - part I: beams and slabs

Aurelio Muttoni, Miguel Fernández Ruiz

This paper examines the evidence for the one-way shear model developed for the fib Model Code for Concrete Structures 2010 and provides examples of its application. For the design and analysis for shear, for members with and without shear reinforcement, th ...

Thomas Telford2013

Punching shear strength of steel fibre reinforced concrete slabs

Aurelio Muttoni, Miguel Fernández Ruiz, Luis Felipe Maya Duque

The ultimate strength of reinforced concrete slabs is frequently governed by the punching shear capacity, which may be increased with addition of traditional fitments such as reinforcing steel, headed studs or shear heads. In addition to these traditional ...

Engineering Structures2012

New steel-concrete connection for prefabricated composite bridges

Jean-Paul Lebet, Dimitrios Papastergiou

An investigation of a new type of connection between precast concrete decks and steel girders, for composite steel-concrete bridges, is being performed by the Steel Structures Laboratory, ICOM, of Ecole Polytechinque Federal de Lausanne, EPFL. The connecti ...

2011

Post-punching behavior of reinforced concrete slabs

Yaser Mirzaei

Reinforced concrete flat slabs are extensively used in buildings and parking garages. Their design is governed by deflection at the serviceability limit state and punching shear at the ultimate limit state. When no punching shear reinforcement is provided, ...

EPFL2010