Ernst & Sohn makes 10 engineers happy

As part of the Bridge Building Symposium, a competition was held on the Ernst & Sohn / Structruae stand to win a reference book. Only one question had to be answered. How high is the Space Needle in Seattle?

The preparatory works for the new Semmering Base Tunnel

Extensive preparatory works for the new Semmering Base Tunnel (SBTn) project have been underway in Styria since March 2012 and in Niederösterreich since April 2012, in numerous construction sections and contracts. In the Gloggnitz construction section (PGG) on contract PGG1, one of six contracts in Gloggnitz, the works included two rail bridges, two trough structures, one road bridge, various flood protection works, a landfill for excavated spoil and three lifts at Gloggnitz station.

Highlights of the design and construction of a 12 km elevated APM bridge project in Saudi Arabia

The automated people mover (APM) bridge project constructed at Princess Nora University (PNU) in Saudi Arabia and inaugurated in May 2012 is a major project with many challenges in design and construction due to its strict time-frame compared with the big scale of the project.

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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Journals provide support for a successful degree

Ernst & Sohn magazines support students during their course and also afterwards. Available at a special price for students, request a sample issue to investigate. Naturally free.

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.