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논문 기본 정보

자료유형
학술저널
저자정보
Ahmet Can Altunışık (Karadeniz Technical University) Ebru Kalkan (Karadeniz Technical University) Hasan B. Başağa (Karadeniz Technical University)
저널정보
한국계산역학회 Computers and Concrete, An International Journal Computers and Concrete, An International Journal Vol.22 No.1
발행연도
2018.1
수록면
101 - 116 (16page)

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As one of the most important engineering structures, arch dams are huge constructions built with human hands and have strategical importance. Because of the fact that long construction duration, water supply, financial reasons, major loss of life and material since failure etc., the design of arch dams is very important problem and should be done by expert engineers to determine the structural behavior more accurately. Finite element analyses and non-destructive experimental measurements can be used to investigate the structural response, but there are some difficulties such as spending a long time while modelling, analysis and in-situ testing. Therefore, it is more useful to conduct the research on the laboratory conditions and to transform the obtained results into real constructions. Within the scope of this study, it is aimed to determine the structural behavior of arch dams considering experimentally validated prototype laboratory model using similitude and scaling laws. Type-1 arch dam, which is one of five arch dam types suggested at the “Arch Dams” Symposium in England in 1968 is selected as reference prototype model. The dam is built considering dam-reservoir-foundation interaction and ambient vibration tests are performed to validate the finite element results such as dynamic characteristics, displacements, principal stresses and strains. These results are considered as reference parameters and used to determine the real arch dam response with different scales factors such as 335, 400, 416.67 and 450. These values are selected by considering previously examined dam projects. Arch heights are calculated as 201 m, 240 m, 250 m and 270 m, respectively. The structural response is investigated between the model and prototype by using similarity requirements, field equations, scaling laws etc. To validate these results, finite element models are enlarged in the same scales and analyses are repeated to obtain the dynamic characteristics, displacements, principal stresses and strains. At the end of the study, it is seen that there is a good agreement between all results obtained by similarity requirements with scaling laws and enlarged finite element models.

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참고문헌 (40)

참고문헌 신청
A.C. Altunisik / 2017 / System identification of arch dam model strengthened with CFRP composite materials / Steel and Composite Structures, An International Journal 25(2):231~244 dbpia Altunisik, A.C. / 2016 / Retrofitting effect on the dynamic properties of modelarch dam with and without reservoir water using ambientvibration test methods / J. Struct. Eng. 142(10):04016069 Crossref Altunisik, A.C. / 2015 / CFRP composite retrofitting effect on the dynamic characteristics of arch dams / Soil Dyn. Earthq. Eng. 74:1~9 Crossref Altunisik, A.C. / 2018 / Modal parameter identification of RC frame under undamaged, damaged, repaired and strengthened conditions / Measurment 124:260~276 google schola ANSYS / 2016 / Swanson Analysis System google schola

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