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本文对带裂纹的钢筋混凝土构件进行了断裂力学分析,并通过试验和有限元计算得到了含裂纹钢筋混凝土构件中KIc的尺寸效应和s/w(跨高比)值对KIc值的影响等问题进行了研究.在测试中还成功地应用了声发射测试技术监测裂纹的临界扩展点.
In this paper, the cracked reinforced concrete members are analyzed by fracture mechanics, and the size effect of KIc and the influence of the s/w (trans-height ratio) value on the KIc value of crack-containing reinforced concrete members are obtained through tests and finite element calculations. A study was performed. The acoustic emission testing technique was also successfully applied to monitor the critical point of crack propagation.