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In prestressed concrete, the compressive stresses introduced into areas where the tensile stresses develop under load will resist or annul these tensile stresses. So the concrete beam behaves as if it has a high tensile strength of its own. Provided the tensile stresses do not exceed to pre-compression stresses, cracking cannot occur in the bottom of the beam. The prestress is defined as a method of applying pre-compression to control the stresses resulting due to external loads below the neutral axis of the beam tension developed due to external load which is more than the permissible limits of the plain concrete. The precompression applied (may be axial or eccentric) will induce the compressive stress below the neutral axis or as a whole of the beam c/s. Resulting either no tension or compression. Advance Design is a complete integrated analysis / design software dedicated to engineers. It conducts static and dynamic analysis of 2D and 3D structures, from bridges and culverts to buildings and towers. Advance Design is your in-house construction expert in designing and optimizing steel composite, wood, reinforced and prestressed concrete structures.