Study on Strength of R/C Roof-Type Cylindrical Shells Pin-Supported at Corners under Concentrated Loading
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概要
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This paper deals with the strength and nonlinear behaviors of reinforced concrete roof-type circular cylindrical shells pin-supported at corners under concentrated loading. The cracking patterns and ultimate strength are investigated both experimentally and theoretically. In these analyses, three different types of edge member stiffness are considered. The theoretical study is conducted using material and geometrical nonlinear finite element analyses including concrete cracking and tension stiffening effects. 9-node degenerate thick shell elements employing layered discretization through the thickness are adopted. Furthermore, the critical buckling loads are investigated by considering the initial imperfection and linear buckling load with IASS Recommendations of Reinforced Concrete Shells. The experimental study is conducted on reinforced microconcrete shell specimens. Those are loaded with concentrated vertical load on the center of shell surface to failure. These results are compared with the results of Authors' previous experiment. The results for each shell, which are obtained by elastoplastic analysis, calculations based on elastic buckling analysis considering IASS Recommendations, and failure experiments, are investigated. Under the pin-supported conditions, the interactions between the shell and the edge members are investigated. Cracking patterns of shell surfaces and edge members, the load level at the first cracking and the ultimate strength under concentrated loading are obtained.
- 東海大学の論文
著者
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Mashita Kazuhiko
Department Of Architecture And Building Engineering School Of Engineering
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Mashita Kazuhiko
Department Of Architecture And Building Engineering
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YOSHITAKE Hidehiro
Structural Design Office, Yamashita Sekkei Inc.
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NOGUCHI Masaya
Structural Department, Obayashi Corporation
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HOTTA Masatoshi
Course of Architecture and Building Engineering, Graduate School of Engineering
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Hotta Masatoshi
Course Of Architecture And Building Engineering Graduate School Of Engineering
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Noguchi Masaya
Structural Department Obayashi Corporation.
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Yoshitake Hidehiro
Structural Design Office Yamashita Sekkei Inc.
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