Calculation of normal crack opening width of reinforced concrete beams under bending

When a reinforced concrete beam deflects, a process occurs that leads to the formation of cracks in the stretched area of the wall. In turn, cracks reduce the strength, bearing characteristics of the beam and, accordingly, have a direct effect on the increase in deflection, which worsens the bearing capacity of the entire structure, and leads to an emergency situation. The article considers the calculation of the opening of normal cracks of a reinforced concrete beam according to the methodology presented in SP 52-101-2003, SP 63.13330.2018, with pre-set parameters of the tested loads and strength characteristics of the beam.