Numerical Evaluation of the Effects of Hoop Edge Beams Attached to the Cylindrical R/C Shell

doi:10.3850/978-981-08-7920-4_S2-S96-cd

Numerical Evaluation of the Effects of Hoop Edge Beams Attached to the Cylindrical R/C Shell

Takashi Hara

Department of Civil Engineering and Architecture, Tokuyama College of Technology, Gakuendai Shunan, Japan.

ABSTRACT

In this paper, the numerical analysis of R/C cylindrical shell with edge beams in hoop direction was performed by using the nonlinear finite element method. In numerical analysis, the degenerate shell elements with layered approach are adopted. Both shells and beams are modeled by these elements. To represents the nonlinear behavior of R/C shell elements, combined material and geometric nonlinearities are taken into account. From the numerical analyses, it is confirmed that the stiffness of the edge beams plays an important role to shows the deformation characteristics and the ultimate strength of R/C shell structures. Considering the effects of edge beams on these phenomena, the minimum size of the edge beam to represent the maximum ultimate strength of cylindrical R/C shell is calculated under an uniformly distributed loading.

Keywords: R/C shell, Cylindrical shell, Edge beam, Ultimate strength.

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