Design of Prestressed Concrete Structures

allowable stresses anchorage applied assumed axial bars bending bottom fiber bridge C-line c.g.s. line camber cantilever column composite section compressive stress computed concordant cable concrete beams concrete section continuous beam cracking creep curve dead load deflection diagram diameter due to prestress eccentricity effective prestress elastic theory example external load factor of safety falsework fiber stress flange flexural force formula girder grouting Hence initial prestress jacking k-ft kern length lever arm live load loss of prestress maximum method midspan modulus of elasticity nonprestressed reinforcements nonprestressed steel obtained portion post-tensioned pre-tensioned precast prestressed beams prestressed concrete prestressing steel principal tension produced ratio reinforced concrete resisting result shear shown in Fig shrinkage slab Solution span statically indeterminate strain strands stress distribution structure T. Y. Lin tendons tensile stress top fiber transfer transverse ultimate load ultimate strength unbonded wires