種別 paper
主題 An Analytical Study on Shear Walls Subjected to Biaxial Loading
副題
筆頭著者 Aiman Alawa(Hiroshima University)
連名者1 Takayuki Shimazu(Hiroshima University)
連名者2 Hideo Araki(Hiroshima University)
連名者3
連名者4
連名者5
キーワード
16
2
先頭ページ 87
末尾ページ 92
年度 1994
要旨 1.INTRODUCTION
The last decade witnessed rapid advances in the use of finite elements methods (FEM) for the analysis of reinforced concrete(RC) structures. Due to its highly complex material behavior, the analysis of RC structures by the finite element method is still under improvement.
Recent researches reflect this improvement with regard to the RC plates or shells. Massicote et al. [1] analyzed panels subjected to axial and lateral loads by implementing the three-dimensional degenerate plate element. Many constitutive models and analytical procedures have been reported in many papers; Shenglin and Cheung, [2], Xiang et al. [3], Hu and Schnobrich [4]. However most formulations were based on specialized elements. Besides, most concerns were concentrated on the analysis of elements loaded biaxially at the same time without paying enough attention to the mutual effects of sequential loading.
In a previous paper [5], the authors proposed a simplified procedure to analyze thin plates that are subjected to biaxial loading. The procedure was based on the implementation of both membrane and Mindlin elements. However, further improvement was deemed necessary to analyze thick plates as well. This paper presents the improved process that describes the behavior of such members when subjected to combined loads applied in a successive manner. The analytical results are then compared to experimental results on shear walls which have been subjected to bixial loading conditions. This study used the heterosis degenerate element for analyzing thick plates, and as a next step, the same element will be used for analyzing general shell structures as well.
5. CONCLUSIONS
A procedure to analyze reinforced concrete plate elements under combined loading conditions has been presented. The procedure is based on the implementation of heterosis element using the modified compression field theory. It takes into account the loading sequence effect further improving the procedure accuracy. The procedure is general and can be applied on both thick and thin plates. A good representation of the plate behavior could be obtained with respect to in-plane and out-of-plane load-displacement curves. Further comparative study by using the generalized shell element is a prospective one.
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