Publications de Luís Costa Borges

The emission benefits of European integration

Luís Costa Borges, Vincent Moreau, Luis Costa

Simulating the implications of Brexit on the UK's emissions embodied in trade with a multi-region input-output table exposes the benefits of European integration. Under 2014 trade volumes, technologies and energy mixes, a hard Brexit-reverting to a trade p ...

2019

Fatigue behaviour and detailing of slotted tubular connection

Alain Nussbaumer, Luís Costa Borges, Cláudio Alexandre Pereira Baptista, Santosh Yadav

Tubular elements are used in steel structures not only for bracing of other members but also as cross girders diaphragms. They are a competitive solution both due to the lightweight and structural efficiency. Slotted tube-to-plate connections are the natur ...

2015

Experimental testing and simulation of bolted beam-column connections having thick extended endplates and multiple bolts per row

Alain Nussbaumer, Luís Costa Borges, Gary Scott Prinz, Shyam Khadka

Retrofit of existing steel buildings often requires strengthening of the connection regions. One common connection, the bolted beam-column connection, is often strengthened in design using stiffened extended endplates, or with continuity plates welded betw ...

Elsevier2014

Advanced Numerical Modeling of Cracked Tubular K Joints: BEM and FEM Comparison

Alain Nussbaumer, Luís Costa Borges

A critical aspect in the design of tubular bridges is the fatigue performance of the structural joints. The estimation of a fatigue crack life using the linear elastic fracture mechanics (LEFM) theory involves the calculation of stress intensity factors (S ...

American Society of Civil Engineers2012

A critical examination of the size effect correction for welded steel tubular joints

Alain Nussbaumer, Ann Schumacher, Luís Costa Borges

Welded circular hollow section (CHS) joints typical to bridge construction have been examined in an experimental, numerical, and analytical study with respect to their fatigue strength. Evidence from this study has indicated lower fatigue strength for join ...

Elsevier Ltd.2009

Experimental determination of stress intensity factors on large-scale tubular trusses fatigue tests

Alain Nussbaumer, Luís Costa Borges

Taylor & Francis Group2008

Size effects in the fatigue behaviour of welded CHS bridge joints

Alain Nussbaumer, Luís Costa Borges

ECCS2008

Size effects in the fatigue behavior of welded tubular bridge joints

Alain Nussbaumer, Luís Costa Borges

Tubular space trusses for bridge applications use thick-walled tubes. The reduction in fatigue resistance due to geometrical size effects is thus an important issue. In order to carry out a thorough study, both fatigue tests on large-scale specimens and ad ...

Wiley-Blackwell2008

Size effects in the fatigue behaviour of welded tubular bridge joints

Alain Nussbaumer, Luís Costa Borges

Technische Universität Darmstadt2008

Advanced numerical modelling of fatigue size effects in welded CHS K-joints bridges

Alain Nussbaumer, Luís Costa Borges

Taylor & Francis Group2008

Size effects in the fatigue behaviour of tubular bridge joints

Luís Costa Borges

A critical aspect in the design of tubular bridges is the fatigue performance of the structural joints. Economic viability depends on it. Lower fatigue strength for joints with thicker failing members was observed in welded joints typical to the bridge app ...

EPFL2008