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Earthquakes and Structures Volume 24, Number 3, March 2023 , pages 205-215 DOI: https://doi.org/10.12989/eas.2023.24.3.205 |
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A study on the seismic performance of reinforced concrete frames with dry stack masonry wall using concrete block |
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Joong-Won Lee and Kwang-Ho Choi
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| Abstract | ||
| Currently, many studies are underway at home and abroad on the seismic performance evaluation and dry construction method of the masonry structure. In this study, a dry stack masonry wall system without mortar using concrete blocks is proposed, and investigate the seismic performance of dry filling wall frames through experimental studies. First, two types of standard blocks and key blocks were designed to assemble dry walls of concrete blocks. And then, three types of experiments were manufactured, including pure frame, 1/2 height filling wall frame, and full height filling wall frame, and cyclic load experiments in horizontal direction were performed to analyze crack patterns, load displacement history, rebar deformation yield, effective stiffness change, displacement ductility, and energy dissipation capacity. According to the experimental results, the full height filling wall frame had the largest horizontal resistance against the earthquake load and showed a high energy dissipation capacity. However, the 1/2 height filling wall frame requires attention because the filling wall constrains the effective span of the column, limiting the horizontal displacement of the frame. In addition, the concrete block was firmly assembled in the vertical direction of the wall as the horizontal movement between the concrete blocks was allowed within installation margin, and there was no dropping of the assembled concrete block. | ||
| Key Words | ||
| concrete block; dry stack method; masonry wall; reinforced concrete; seismic performance | ||
| Address | ||
| Joong-Won Lee: Department of Architecture, Shin Ansan University, 135 Shin Ansan Daehak-ro, Danwon-gu, Ansan-si, Gyeonggi-do 15435, Republic of Korea Kwang-Ho Choi: Department of Architectural Engineering, Namseoul University, 91 Daehak-ro, Seonghwan-eup, Seobuk-gu, Cheonan-si, Chungcheongnam-do 31020, Republic of Korea | ||