Crack Resistance of RC Beams on the Shear

摘要: Most important parameter of serviceability limit state (SLS) for reinforced concrete (RC) beams is crack resistance. These include width opening, cracking distribution, load at which achieved and maximum opening. This especially shear In this article, new data resistance rectangular RC are described. Changing parameters were span (acquiring values 1, 1.5, 2) strengthening with FRCM (Fiber Reinforced Concrete Matrix) system in the supporting area. Eight samples experimental researches carried out: six once from them without but different two composite system. Using opening as criteria exhaustion bearing capacity can conclude that remains about 19–26% caring before danger failure beam. When decreases on 25% only 7% 40$ when decreased by 50%. External reduced 43%: 0.75 to 0.43 mm exceed insignificant.