ABSTRACT
Another reason for unexpected deflection is the omission of some phenomena during structural modelling of a structure. It concerns for example shear lag and the influence of shear on deformation generally, eccentric position of prestressed and non-prestressed reinforcement, the contributionof non-structuralmembers, such as parapets and asphalt wearing surface, to the load carrying capacity, stiffness reduction due to cracks development, friction in bearings, etc.
