Abstract
A lot of plain concrete piers are used as railway structures at present. At the time of a large earthquake, the horizontal perforated crack or slide along the construction joint and spalls under the construction joint are frequently occurred due to their earthquake-resistant lowness.
In this study, the behavior, the failure mode, and the validity for plain concrete piers on the static test and the dynamic test with the large seismic device were experimentally investigated using the 1/2.5 scale specimens and the one with the movement restraining devices for the construction joint.
Test results indicate that the maximum and the residual displacement of the specimen with the movement restraining devices are smaller than the specimen without the devices. Moreover, the behavior of spalls under the construction joint and the range of the load acting on the pier above the construction joint are clarified.
