Session: SE-07-01 Seismic Evaluation of Systems, Structures and Components

Paper Number: 133076

133076 - Experimental Validation of Shear Capacity Considering Concrete Voids of Rc Shear Wall 

Recently, there has been a lot of interest in securing and improving the safety of structures due to changes in the seismic environment in Korea. The RC shear wall is one of the most critical structural components in both conventional structures and nuclear power plant structures against earthquakes and other disasters. Several cases where voids occurred due to the limitations during the construction process were discovered recently. That is, it is necessary to identify the effect of these voids on the performance of the RC shear walls experimentally. Therefore, in this study, the performance evaluation of shear walls with and without voids was experimentally carried out through cyclic loading tests. Considering the failure mode of the shear walls, the location of the void was selected in the center of the shear wall (i.e., diagonal shear failure), and other variables such as volume ratio and depth were based on a case study using the LS-DYNA program. In the cyclic loading tests, the drift ratio and loading velocity were based on ATC-24, and ACI 374.2R-13. Through cyclic loading tests, not only the shear strength of the shear wall but also the strain responses of rebar and concrete (i.e., adhesion of reinforced concrete) were compared to analyze the impact of the voids.

Presenting Author: Yongmoon Hwang Korea Atomic Energy Research Institute(KAERI)

Presenting Author Biography: Yongmoon Hwang is a Senior Researcher at the Korea Atomic Energy Research Institute in the Republic of Korea. His research areas are performance evaluation of shear wall and response prediction using real time monitoring system.

Authors:

hyemin Shin Korea Atomic Energy Research Institute(KAERI)
Yongmoon Hwang Korea Atomic Energy Research Institute(KAERI)
Jae-Wook Jung Korea Atomic Energy Research Institute(KAERI)
Junhee Park Korea Atomic Energy Research Institute(KAERI)