短繊維補強コンクリート（構造）／連続繊維補強コンクリート（構造）

[V-218] A study on the stiffness change of UFC by dynamic and static compression tests

〇Kota Hamasaki¹, Takashi Kosaka¹, Toshimichi Ichinomiya², Yusuke Nagai² (1.Hanshin Expressway Co., Ltd., 2.KAJIMA CORPORATION)

Keywords:UFC, AFt-based UFC, Compression fatigue failure, Repetitive action, Material property, Elastic modulus

Studies on the fatigue resistance of UFC slabs have confirmed that they have sufficiently high fatigue resistance in wheel load running tests. However, the test was completed before the UFC slab was destroyed, and the progress of fatigue damage of the UFC slab has not been clarified. This report is a basic study to clarify the fatigue damage of the UFC slab as described above. This report reports the contents of the examination. From this test, it was clarified that the elastic modulus changes according to the number of UFC loadings and the mutual fatigue strength.