| Title |
Evaluation of Seismic Performance of RC L-shaped Walls having different confinement details subjected to Bi-directional Cyclic Loads |
| Keywords |
L-shaped walls ; lateral confinement ; seismic performance ; corner of wall ; high seismic zone |
| Abstract |
The Maximum strength of a structural wall subjected to lateral load is influenced by many factors, such as loading direction, the spacing and confined area of transverse reinforcement, aspect ratio, vertical and horizontal reinforcement. The cross sections of structural walls have various shapes such as T, L, and -shaped. The L-shaped walls frequently appear in the corner of the structural plans and there are previous limited research results on the structural performance of L-shaped walls subjected to bi-directional loads. L-shaped wall subjected to bi-directional loads might have possibility of a compressive failure due to the high stress in the corner of the wall. In this paper, four L-shaped walls specimens are designed and tested in order to evaluate the seismic performance of L-shaped walls subjected to bi-directional load.
Based on the experimental results, the confining area of wall corner has a great influence on the maximum strength and initial stiffness of an L-shaped wall. Specimen LCU and LCU-b1 having the change of the vertical lateral confinement distribution has nearly the same structural performance. Therefore, the vertical area and content of the lateral confinement would not greatly influence on the structural performance of L-shaped walls, particularly strength, deformability and energy dissipation capacity. |