Prestressed Concrete, Design Principles, and Reinforcing Units
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Discusses the steel stress limitation in ordinary reinforced concrete design and shows how working stresses may be increased by the use of monolithic, prestressed concrete construction. It gives a descrip- tion of self-contained prestressed reinforcing units and points out the advantageous combination of high yield-point steel wire and high-early-strength concrete. A derivation of the elementary design principles is illustrated by examples. The theoretical conclusions are compared with some observations on prestressed prisms and test beams.