PRESTRESSED CONTINUOUS BEAMS AND FRAMES

摘要

The paper describes methods of design for continuous prestressed concrete teams and frames, in particular those of uniform section. Methods for determining suitable tendon profiles are discussed and it is shown that certain displacements of these profiles are possible without affecting the stress conditions. In the case of frames consideration is given to the effects of varying direct forces on section design. The methods of allowing for transom shortening due to prestress are discussed.nA comparison is made between simply supported and continuous beam construction, it being shown that the use of continuity becomes advantageous only when large dead loads occur.