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1 混凝土裂缝的成因归纳起来,混凝土裂缝的成因有荷载作用引起的裂缝和非荷载因素引起的裂缝。1.1 荷载作用引起的裂缝正常设计的钢筋混凝土结构构件在使用荷载作用下,截面上的混疑土拉应变大多是大于混凝土极限拉伸值的,因此构件在使用时一般是带缝工作的。正常情况下,裂缝最先产生在拉应力最大处,且与主拉应力方向大致垂直。1.2 非荷载因素引起的裂缝在钢筋混凝土结构中,有许多非荷载因素能引起裂缝,主
1 The causes of concrete cracks To sum up, the causes of concrete cracks are cracks caused by load and non-load factors caused by cracks. 1.1 Loads caused by cracks Normal design of reinforced concrete structural members in the use of load, the cross-section of the suspect soil tensile strain is greater than the ultimate tensile value of concrete, so the components are generally used in the work with a slit. Under normal circumstances, cracks first occurred in the maximum tensile stress, and the direction of the principal tensile stress is generally perpendicular. Cracks caused by non-load factors In reinforced concrete structures, there are many non-load factors that can cause cracks. The main