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某水库泄洪闸闸墩 ,为大体积的混凝土结构 ,体型、受力情况及边界条件都较复杂 .根据闸墩结构特点 ,利用空间块体单元对闸墩进行有限元离散 ,计算了该闸墩在 4工况下的强度与变形 ,给出了几个典型截面的应力等值线图和变形图 ,并对裂缝生成的原因、裂缝的开展可能性进行分析 .结果表明 ,温降产生的收缩和冷缩及温升和水载荷的作用 ,使闸墩内部产生应力 ,这是闸墩底部和顶部产生裂缝的主要原因
According to the structural characteristics of sluice pier, the finite element method is used to discretize the sluice piers and calculate the pier The strength and deformation under the condition of 4, the stress contours and deformation maps of several typical cross sections are given, and the causes of crack generation and the possibility of crack initiation are analyzed.The results show that the shrinkage caused by temperature drop And the role of shrinkage and temperature rise and water load, the stress generated inside the pier, which is the pier and the bottom of the main cracks