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1 梁加高钢筋的做法梁因种种原因加高是常有的事。加高了梁就应将受力钢筋位置作相应移动 ,梁底用箍筋固定 ,这样才起到加高梁的作用。钢筋不变 ,指直径 ,位置 ,ｈ0 不变 ,则起不到加高梁的作用 ,承载力得不到提高 ,而且根据材料力学 ,平面假设梁的下边无筋、少筋是易产生裂缝
A beam to increase the practice of reinforced beams due to various reasons higher is common. Heightening the beam should be forced to move the location of the corresponding reinforcement, the bottom of the beam with stirrups fixed, so that it played the role of increased beam. Rebar unchanged, refers to the diameter, location, h0 unchanged, then can not play the role of increased beam, the bearing capacity can not be improved, and according to the material mechanics, the plane assumes that the bottom of the beam without ribs, less tendons tend to produce cracks