Publications de Matthew James Sjaarda

A WIM-Based Assessment of Multiple Vehicle Presence Effects on Fatigue Damage of Highway Bridges

Alain Nussbaumer, Scott Walbridge, Matthew James Sjaarda

The fatigue provisions for bridge design in North America and Europe are highly simplified for the sake of practical implementation, in comparison with the state of the art in understanding of the true fatigue behavior. Historically, one significant simpli ...

2024

Evaluation des ponts routiers existants avec un modèle de charge de trafic actualisé

Eugen Brühwiler, Alain Nussbaumer, Dimitrios Papastergiou, Numa Joy Bertola, Matthew James Sjaarda, Paola Costanza Miglietta

Office fédéral des routes OFROU2024

The impact of heavy vehicle platoons on bridge traffic loads

Alain Nussbaumer, Matthew James Sjaarda

Traffic experts expect that interconnected autonomous vehicles will be implemented on roads in the near future to reduce emissions and to increase safety on roads [1], [2]. Since the navigation of vehicles in platoons is highly time synchronized, current i ...

International Association for Bridge and Structural Engineering (IABSE)2021

Reliability analysis of welded stud shear connectors on simply-supported bridge girders

Scott Walbridge, Matthew James Sjaarda

This paper examines the reliability of welded stud shear connectors for steel-concrete composite bridge girders. A finite element model of a simply-supported bridge was created featuring link connector elements representing the shear studs between beam and ...

CANADIAN SCIENCE PUBLISHING2021

Performance of Embedded Bolt Shear Connectors

Scott Walbridge, Matthew James Sjaarda

A laboratory research program carried out at the University of Waterloo featured the testing of three large-scale steel-concrete composite beam specimens with embedded bolt shear connectors. A detailed assessment of the connector performance was made, faci ...

TAYLOR & FRANCIS LTD2020

A systematic approach to estimating traffic load effects on bridges using weigh-in-motion data

Manfred Hirt, Alain Nussbaumer, Matthew James Sjaarda

In contrast to the Swiss load model used for new bridge structures (SIA 261), which has roots in a Europe-wide weigh-in-motion (WIM) study and considers the full design life of new structures, the model for existing structures (SIA 269) from 2005 is derive ...

ERNST & SOHN2020