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研究含边裂纹桥墩的Saint-Venant扭转,将问题划归为裂纹上边界积分方程的求解。提出了新的边界元数值方法,对分别含有圆弧边裂纹和直线边裂纹的典型问题进行了数值计算,并与用Gauss-Chebyshev求积法计算的直裂纹情形结果进行了比较,证明了本文公式的正确性和有效性。
In this paper, the Saint-Venant torsion of the bridge with side crack is studied and the problem is solved as the solution of the integral equation of the upper boundary of the crack. A new boundary element method is proposed to solve the typical problems with arc-edge crack and straight-edge crack respectively. The results are compared with the results of straight crack case calculated by Gauss-Chebyshev quadrature method. The correctness and validity of the formula.