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Orthotropic steel bridges in Germany
This document describes the development and state of the art of orthotropic steel bridges in Germany. Following a short historical review of the performance of orthotropic bridge decks over the last decades, the present traffic loads are described and related to the resistance of the existing structures. Based on four different hazard categories, this paper describes different retrofitting methods. Although several promising strengthening techniques are introduced and evaluated, it appears that further research is urgently required in order to improve these techniques

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SBTn basic surveying for tunnelling
Major tunnel projects like the new Semmering Base Tunnel require intensive design work long before construction can start.

Fatigue strength of high-strength steel linings with different types of grouting opening
Owing to the increased use of high-strength steel (HSS) grades for steel linings in pressure shafts, the fatigue check becomes more and more critical for the proper design of such components.
Ioannis Vayas reaches 60
Prof. Dr.-Ing Dr. h.c. Ioannis Vayas, professor for steel structures at the National Technical University of Athens, Greece, celebrated his 60th birthday on 26 October 2013.

90 years of Structural Engineering history- A special issue from Ernst & Sohn
Some of the most significant milestones in the field of structural engineering (new processes, materials, structural concepts) of the past 90 years are presented in a special way. Special price for Bautechnik (Structural Engineering) subscribers.

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