Alain Nussbaumer

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Publications associées (111)

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

Alain Nussbaumer, Luís Costa Borges

Taylor & Francis Group2008

A probabilistic model for determining the effect of post-weld treatment on the fatigue performance of tubular bridge joints

Alain Nussbaumer, Scott Walbridge

Herein, a probabilistic model for predicting the effect of post-weld treatment on the fatigue performance of the welded joints in tubular truss bridges is described. Specifically, a probabilistic LEFM-based model is first developed for the fatigue analysis ...

2007

Size effect of welded thin-walled tubular joints

Manfred Hirt, Alain Nussbaumer

This paper clarifies the terminologies used to describe the size effect on fatigue behaviour of welded joints. It summarizes the existing research on size effect in the perspective of newly defined terminologies. It identifies knowledge gaps in designing t ...

2007

A stethoscope for testing of bridges

Manfred Hirt, Michel Thomann, Alain Nussbaumer

Beim Überprüfen der Tragsicherheit einer bestehenden Brücke können dank Messungen die zur Berechnung der Beanspruchung entwickelten Modelle kalibriert werden. Im vorliegenden Aufsatz wird ein neues System von Dehnmessstreifen vorgestellt, welches den erfor ...

2007

Assessment of existing steel structures. A guideline for estimation of the remaining fatigue life

Alain Nussbaumer

In many countries and regions, traffic infrastructure projects suffer from low funding. The budget is tight for new infrastructure building and, thus, the importance of inspection, maintenance and assessment of the existing traffic infrastructure increases ...

Taylor & Francis2007

Experimental study on the fatigue behaviour of welded tubular K-joints for bridges

Alain Nussbaumer, Ann Schumacher

Fatigue tests were carried out on welded circular hollow section K-joints typical to bridges. The tests specimens were large-scale (approximately 9 m long and 2 m high) trusses loaded in the plane of the truss. Measured member stresses showed that a signif ...

Elsevier2006

European standard for fatigue design of steel structures and perspectives

Alain Nussbaumer

2006

Stethoscope pour l'auscultation des ponts

Manfred Hirt, Michel Thomann, Alain Nussbaumer

espazium2006

Fatigue of bridge joints using welded tubes or cast steel node solutions

Senta Haldimann, Alain Nussbaumer, Ann Schumacher

In the design of recently constructed steel-concrete composite bridges using hollow section trusses for the main load carrying structure, the fatigue verification of the tubular truss joints has been a main issue. Recent research on the fatigue behaviour o ...

2006

Probabilistic fatigue analysis of a post-weld treated tubular bridge

Alain Nussbaumer, Scott Walbridge

In this paper, several probabilistic models for evaluating the fatigue performance of post-weld treated tubular bridge structures are briefly described. The application of the models is then demonstrated on a full-scale example bridge. Under realistic traf ...

2006

Les possibilités offertes par les ponts mixtes tubulaires

Alain Nussbaumer

2006

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