光ファイバーセンサーによる鋼構造試験体の静的・動的柱軸変形の計測

概要

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Observation method of static and dynamic behavior of axial deformation is discussed for steel frame column by use of fiber optic deformation sensor (SOFO). A full-scaled steel structure specimen for E-defense shaking table is used for the investigation. Static observation is done for the structure during its construction with increasing dead load of concrete slabs. It is clearly shown that the fiber optic sensor is suitable for evaluation of average deformation of columns, and the correction of temperature-dependent characteristics and appropriate sensor installation are most important for the observation. Dynamic observation is also performed under earthquake shaking test, and it is verified that the axial and bending deformation are evaluated separately. Structural damage detection is observed to be possible by use of dynamic axial loads of columns. By use of the sensor, both of the log-span static monitoring and the short-range dynamic observation will be possible for the structural health monitoring.
一般社団法人日本建築学会の論文
2009-03-27