نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشکده مهندسی عمران، دانشگاه سمنان
2 استاد، دانشکده مهندسی عمران، دانشگاه سمنان
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
In general, shear reinforcement of reinforced concrete beams is done stirrups. Replacing stirrups with rectangular spiral reinforcement can increase execution speed and reduce costs. On the other hand, the use of fiber reinforced concrete in concrete structures is expanding due to its unique properties. One of the ways to overcome tensile and shear weaknesses of concrete is to reinforce concrete with fibers. In this article, the replacement of stirrups with continuous rectangular spiral reinforcements in concrete and steel fiber reinforced concrete (SFRC) beams has been experimentally investigated by testing three beams under static loading.The first beam with stirrups and normal concrete (ST-NC) as a reference beam and the other two beams with continuous rectangular spiral reinforcements with normal concrete (SP-NC) and steel fiber reinforced concrete at a rate of 0.75% by volume (SP-F0 .75), are The Experimental results showed that the shear resistance, energy absorption and ductility of the beam with continuous rectangular spiral reinforcements with fiber concrete has improved compared to the normal concrete beam similar to itself and the reference beam. Beams with continuous rectangular spiral reinforcements with normal concrete and steel fiber reinforced concrete showed a 23.8% and 46.5% increase in shear capacity, respectively, compared to th
کلیدواژهها [English]