Weathered in Australasia
The low-maintenance and strength of weathering steel has made it an increasingly popular material of choice for bridges in Australia and New Zealand over the past 20 years. Raed el Sarraf charts the historical trend and suggests further reasons for the use of weathering steel in future bridges
Constant-stress arches - Q&A with Wanda Lewis
After 30 years studying the shape of tension fabric structures and observing principles of constant stress expressed in natural objects, Professor Wanda Lewis decided to apply the concept to bridge structures. She believes that the outcome – a method for designing arch bridges with a constant stress – could bring a number of benefits. Lewis talks to Jose Sanchez de Muniain.
A remarkable bridge prototype that aims to eliminate high-risk pedestrian ground-level rail crossings has taken solid shape in a remote rural setting - and further iterations are likely to begin appearing throughout the UK within the next year. José María Sánchez de Muniáin reports from site