Keywords: Sofortiger-Verbund-en.png en Pretensioning process for a concrete beam with English notation 2016-08-31 https //en wikipedia org/wiki/File Sofortiger-Verbund png https //de wikipedia org/wiki/User St C3 B6rfix other versions Edited version of original image from User Storfix English notation added cc-zero Prestressed concrete Concrete Drawings of beams |