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既有钢筋混凝土构件中实际内力是反映结构安全状况的重要指标之一。但是在工程建设和使用过程中,结构中实际内力与按理想数值模型计算所得内力有一定的差距。在前文应力释放技术测试构件内力基本理论推导的基础上,介绍了开槽法识别钢筋混凝土构件内力的试验研究方法。试验结果与数值模拟结果吻合,证明了采用应力释放技术测试在役钢筋混凝土构件的内力值是可行的。
The actual internal force in existing reinforced concrete members is one of the important indicators reflecting the structural safety status. However, during the construction and use of the project, there is a certain gap between the actual internal force in the structure and the internal force calculated by the ideal numerical model. On the basis of the basic theory of the internal force of the stress relief technology test component, the experimental research method of slotted method to identify the internal force of the reinforced concrete member is introduced. The experimental results are in good agreement with the numerical simulation results. It is proved that it is feasible to use the stress relief technique to test the internal force of existing reinforced concrete members.