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智能结构体系正逐渐被引入土木工程领域 ,它对于解决土木工程结构的安全性、耐久性、灵活性以及自适应性课题提供了更强的支持 .在智能结构中较为突出的问题是机敏材料与母体结构材料的相容性 .由于土木工程中主要结构材料———混凝土的特性 ,在其它智能结构中具有良好相容性的机敏材料 ,在混凝土智能结构中有可能存在相容性问题 .针对这一情况 ,提出以水泥基材料作为压电机敏复合材料的基体 ,期望解决机敏材料与混凝土结构材料之间的相容性问题 .研究结果显示 :0 -3型水泥基压电机敏复合材料在制备上是可行的 .而形成的0 -3型水泥基压电机敏复合材料内部结构均匀 ,压电性能优于同条件下聚合物基压电复合材料的性能 ,而极化电压却大大降低 ,在性能上满足了作为机敏材料在智能结构中的使用条件
Intelligent structural system is gradually being introduced into the field of civil engineering, which provides stronger support for solving the problems of safety, durability, flexibility and adaptability of civil engineering structures.Optimum structure is more prominent problem is sensitive materials and Compatibility of matrix materials Due to the properties of concrete, the main structural material in civil engineering, and smart materials with good compatibility in other smart structures, there may be compatibility issues in concrete smart structures. In this case, it is proposed to use cement-based materials as the matrix of piezosensitive composite materials, and to solve the compatibility between sensitive materials and concrete structural materials.The results show that the 0-3 cement-based piezoelectric composite materials And the formation of the 0-3 type cement-based piezoelectric composite piezoelectric material with uniform internal structure, piezoelectric properties better than the same conditions under the performance of polymer-based piezoelectric composites, and polarization voltage is greatly reduced, In the performance to meet the smart material as a smart structure in the use of conditions