Sustainability of Timber Bridges -the magic triangleStandard construction drawings– Maintenance Costs -Lifetime

摘要

In Germany thousands of traffic bridges are built and have to replaced every year. TheGerman government and the road construction authorities prefer standard structures andstandard details for cost-saving reasons. Standard construction drawings for timber bridgeshave not been published yet in Germany. That's why 39 standard construction drawingshave been generated for timber bridges: To this day 11 details for standardisation havebeen developed to improve the durability of timber constructions; additional 28 drawingsshow part of the constructions more in detail.This presentation gives an overview of all standard construction drawings and it givesdetailed information with reference to bridges in alpine countries. Together with thelifetime and the maintenance cost of a bridge (a field research project by the author), thedrawings build the so called "magic triangle".