由于光纤传感器体积小，集传感与传输于一体，无电磁干扰等一系列优点，在机敏复合材料中得到广泛应用。文章提出将光纤传感器埋入混凝土结构中，实时、在线监测混凝土结构内部应力状态的变化，即一种机敏建筑结构雏型。讨论了混凝土结构中埋入光纤传感器的埋入方式，受压、受弯引起的光强输出变化与混凝土结构内部状态的关系，并对埋入光纤传感器的混凝土构件三点弯曲梁、圆柱构件进行了实验研究。实验结果表明，光纤传感器的输出变化能反映混凝土构件内部应力变化情况及裂缝的发生、发展等情况 Due to the small size of optical fiber sensors, sensorless sensing and transmission in one, no electromagnetic interference and a series of advantages in the smart composite materials are widely used. The paper proposes to embed optical fiber sensors into concrete structures, and to monitor the changes of the internal stress state in concrete structures on-line in real time, that is, a smart architectural prototype. The relationship between embedded optical fiber sensor embedded in concrete structure, light intensity output change caused by compression and bending and the internal state of concrete structure is discussed. Three-point bending beams and cylindrical members embedded in optical fiber sensor are also studied. Experimental study The experimental results show that the change of output of optical fiber sensor can reflect the change of internal stress in concrete structure and the occurrence and development of cracks