CANTILEVER CONSTRUCTION WITH SCAFFOLDING BEAMS - DESCRIPTION OF TECHNIQUE, EQUIPMENT AND CONSTRUCTION REPORT

The special type of cantilevering construction described which operates with the assistance of a scaffolding beam takes a special place in the field of prestressed concrete bridge construction: a straight axis, relatively light scaffolding beam makes it possible, even at great heights over valleys, to support the completed structure from one pier as far as the span centre and to construct a further bridge span in ten concreting operations. The development of a working concept and the necessary preparation for construction as well as the use of the technique in the construction of two large bridges together with descriptions of the difficulties which occurred gives an insight into the change in bridge construction in the last decade and an example of a necessary modern solution. /TRRL/