炒酸奶怎么做钢筋混凝土适筋梁的破坏特征
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超级炼丹记The failure characteristics of reinforced concrete beams with steel bars are mainly divided into three types: tension failure, shear failure and flexural failure.
1、拉应力破坏：混凝土经受拉应力时，先出现混凝土的屈服，然后破坏，通常破坏后的混凝土局部破碎，钢筋的拉应力达到弹性极限，但没有破坏。
八字祝福语1. Tension Failure: When concrete is subjected to tensile stress, it first yields and then fails. Usually after failure, the concrete is partially broken, and the tensile stress of the steel bars reaches the elastic limit, but does not fail.
2、剪应力破坏：混凝土经受剪应力时，先出现混凝土的屈服，然后破坏，混凝土的破坏形式是沿着钢筋纵向分层破碎，钢筋的剪应力达到弹性极限，但没有破坏。
2. Shear Failure: When concrete is subjected to shear stress, it first yields and then fails. The failure form of concrete is longitudinal layered fracture along the steel bars. The shear stress of the steel bars reaches the elastic limit, but does not fail.
3、弯矩破坏：混凝土经受弯矩时，先出现混凝土的抗压强度减小，然后破坏，混凝土的破坏形式是沿着受弯矩的轴线分层破碎，其中钢筋的弯矩达到弹性极限，但没有破坏。
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小学科学课本3. Bending Moment Failure: When concrete is subjected to bending moment, its compressive strength decreas first and then fails. The failure form of concrete is longitudinal layered fracture along the axis of bending moment, in which the bending moment of steel bars reaches the elastic limit, but does not fail.
