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Open AccessArticle

The Structural Performance of Reinforced Concrete Members with Monolithic Non-Structural Walls under Static and Dynamic Loads

1
Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan
2
Graduate School of Environmental Studies, Nagoya University, Nagoya 464-8603, Japan
3
Earthquake Research Institute, The University of Tokyo, Bunkyo-ku 113-0032, Japan
4
Building Research Institute, Tsukuba 305-0802, Japan
5
Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
6
National Research Institute for Earth Science and Disaster, Tsukuba 305-0006, Japan
7
Structural Engineering Division, Nikken Sekkei Ltd, Chiyoda-ku 102-0072, Japan
*
Author to whom correspondence should be addressed.
Buildings 2020, 10(5), 87; https://doi.org/10.3390/buildings10050087
Received: 19 March 2020 / Revised: 9 April 2020 / Accepted: 20 April 2020 / Published: 6 May 2020
The required base shear and drift limit for post-disaster management buildings have increased in the Japanese Building Code following major seismic events. One method to satisfy these requirements for reinforced concrete frame buildings is to cast exterior non-structural concrete wall elements to be monolithic with frame elements, but without anchoring the longitudinal wall reinforcing. This provides additional stiffness and strength while limiting significant damage in the non-structural wall. In this study, the structural performances of such elements were evaluated using static and dynamic experimental tests. The result indicates that non-structural walls that were neither isolated by seismic slits nor anchored to the adjacent walls with longitudinal reinforcements experienced less damage and higher deformability compared with walls having seismic slits. The confinement reinforcing impact was not observed on the strength and drift capacity of the beam member, owing to the large number of transverse reinforcements. However, the confinements limited the damage and nearly prevented concrete crushing. The maximum horizontal load of the specimen could be predicted using cross-sectional analysis, and the authors propose a simple equation to predict it with sufficient accuracy. View Full-Text
Keywords: non-structural wall; dynamic response; static response; flexural strength; drift capacity; seismic design non-structural wall; dynamic response; static response; flexural strength; drift capacity; seismic design
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MDPI and ACS Style

Safi, W.A.; Hibino, Y.; Kusunoki, K.; Mukai, T.; Sanada, Y.; Nakamura, I.; Fukai, S. The Structural Performance of Reinforced Concrete Members with Monolithic Non-Structural Walls under Static and Dynamic Loads. Buildings 2020, 10, 87.

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