For a simply supported prestressed concrete bearn, compute the stress in the top fiber at midspan due to prestressing force and service loads after transfer. Loss of prestressing force = 20%. Properties of the beam are: Width of the bearn, b: 242 mm; Depth of the %3D beam, d: 417 mm; Concrete cover of the bearn, cc: 61 mm; Prestressing Force, P: 574 KN; Šuperimposed Load, w: 14 KN/m; Length of the bearn, L: 9 m. Stress is in unit MPa. Write only the value of your final answer. w (including selfweight) 000 P.

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Methods to Determine Vertical Stress

The load applied to the soil is transferred to the underground. The presence of water at soil pores and solid grains above the soil are the primary components that are responsible for the effective load transfer. Due to the load acting, the internal component of the soil or the underground formations undergoes deformations or a tectonic shift. The amount of deformation depends upon the amount of load acting on the soil surface, which indeed, depends on the weight of everything present above the soil. Due to this, the underground soil element develops internal stresses which try to resist the tectonic changes.