In structure like portal frames prestressing of transform results in ______

The reduction in the magnitude of prestressing force occurs due to ______

In statistically indeterminate prestressed concrete structures it is possible to make simple modification to ______

The bending moments are more evenly distributed between ________

The formation of redundant reactions is examined with reference to ________

In the design of unidirectional members like continuous beams, the axial contraction due to effect of prestressing is __…

The stresses due to secondary moments can be eliminated by selecting suitable ________

Which diagram is considered in three moment method analysis of secondary moments?