混凝土梁的无损检测

Nondestructive test of concrete beam

为探明不同附加荷载下混凝土梁的频率变化规律,建立起钢筋混凝土简支梁在附加荷载作用下振动特性与破损模态之间的关系。通过对钢筋混凝土梁进行不同荷载等级下静载和动载的交替实验,得到混凝土梁从完整到破坏的频率变化规律。实现了简支混凝土梁健康状况的无损检测。

Through the way of model beam, the paper addresses the relationship between RC beam bridge attached load vibration characteristic and damaged modal. We deduced is available under the condition of different attached load the frequency＇s change disciplinarian. The alternate test of static load and dynamic load on RC beam serves the study of the frequency change disciplinarian from integrity to destroy of RC beam. The mathematics model experiential formula between frequency and attached load is built and quick evaluate RC beam load capacity is realized.