oblique planes

ON ANCHORING OF THE LONGITUDINAL TENSILE REINFORCEMENT IN REINFORCED CONCRETE BEAMS WITHOUT PRE-STRESSING

The character of oblique cracking is significantly influenced by the method and reliability of anchoring of the longitudinal tensile reinforcement on the hinge support beams. In many experimental researches the lack of anchoring caused the premature destruction of beams along the sloping cracks. Nevertheless, such destruction of a beam along the sloping crack, at the violation of anchoring on the hinge support, should not be referred to the type of destruction under the influence of internal efforts, caused by the external loading.

Experimental study of crack resistance and strength of oblique planes of reinforced concrete point-force loaded beams with positive and negative bending moment diagram

The paper discusses experimental study of oblique planes of reinforced concrete solid beams at simultaneous exertion of constant transverse force and positive and negative bending moments. The tested beams had similar characteristics and differed only in types of reinforcement of oblique planes. Analysis of experimental results revealed the specifics of development and width of oblique cracks in the zone of effect of constant transverse force and positive and negative bending moments. The dynamics of development and width of oblique cracks depending on the load was recorded.