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The study basically involved two major working areas: First was metals orientated, studying concrete, steel and composite, timber and polymeric materials as well as various connection fasteners such as bolts, welds, pins, nails and adhesives. The second area of investigation was method orientated, analysing databases, seismic designs and numerical simulations. One of the greatest challenges of this program was to systemise and standardise both test procedures and documentation of results that differed from country to country. This had to be done in order to initiate mutual exchanges and to fully compliment the overall understanding of the actual behaviour of materials under a variety of stress conditions. With this in mind three main characteristics of materials and joiners were studied: initial stiffness, ultimate strength and deformation capacity.

The main results of this action group are significant. Not only were we better able to understand the interaction of stress factors (such as that created from seismic activity) upon certain material groups, we were also able to comprehend the interaction of joiners under such conditions. Moreover, our findings have a direct impact on the comprehensive approach of the structural design and building methods. For example, the "Millennium Tower" in Vienna in which the concrete structure had been replaced with a safer and more suitable steel and concrete design.

Additional information

Authors: DG-Research,
Bibliographic Reference: EUR 19255 EN (2000) 113pp, ECU 17.50
Availability: Available form OOPEC L-2985
ISBN: ISBN 92-828-9018-X
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