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中文摘要：
土工模型试验是研究工程防灾减灾的重要技术手段,模型桩的弯曲变形与弯曲刚度是重要的试验参数。分布式光纤光栅传感技术被研究用来测试薄壁铝制模型桩的弯曲变形和弯曲刚度。从传感原理和力学原理出发给出了试验方法,并将测试结果与理论计算结果进行了对比,以验证该方法试验结果的合理性。研究结果表明,该方法为模型试验中的模型桩特别是薄壁模型桩弯曲变形和弯曲刚度的测量提供了一种适用、可靠的参考方法。
英文摘要：
Civil engineering model test is an important technical measure to research engineering disaster prevention and mitigation. Bending deformation and stiffness of model pile is an important tested parameter. Distributed fiber Bragg grating （FBG） method was introduced based on the sensing and mechanical principles. In order to prove the reasonability of the method, the measured value was compared with the theoretical calculated results. The results show that the proposed method could be used for the measurement of bending deformation and stiffness of model pile during the model tests, especially for the thin-walled tubes model.
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