hogyan építsünk ÍVHIDAT?

At the very beginning of usage of concrete as a structural material for arch bridges limiting factor was extremely complicated arch scaffolding. Those were complicated structural systems whose design and construction were much more challenging and difficult engineering tasks than the bridge itself.

a originál pesti dunahidaknál is igen durva mennyiségben használtak fel fagerendákat az állványozáshoz, pedig azok nem is ívhidak...