At present, ultrasonic testing concrete cracks are li-mited to the simple cracks. As for the complex cracks have no effective methods, especial y the test of concrete frame node after the earthquake damage. This article bases on the finite el-ement simulation of ultrasonic testing concrete cracks, and ex-plores the feasibility of ultrasonic testing concrete complex cr-acks.%目前，超声波检测混凝土裂缝仅限于简单的裂缝。对于复杂裂缝，特别是震损后混凝土框架节点的检测尚无有效方法。本文通过对超声波检测混凝土裂缝的有限元模拟，研究超声波检测混凝土复杂裂缝的可行性。
展开▼
