Water length and height effects on the earthquake behavior of arch dam-reservoir-foundation systems

• Published in: KSCE journal of civil engineering Vol. 15; no. 2; pp. 295 - 303
• Main Authors: Sevim, Bariş, Altunsşik, Ahmet Can, Bayraktar, Alemdar, Akköse, Mehmet, Calayir, Yusuf
• Format: Journal Article
• Language: English
• Published: Heidelberg Korean Society of Civil Engineers 01-02-2011; Springer Nature B.V; 대한토목학회
• Subjects: Algorithms; Arch dams; Civil Engineering; Dynamics; Earthquake engineering; Earthquakes; Engineering; Equations; Finite element method; Forming; Foundations; Geotechnical Engineering & Applied Earth Sciences; Height; Industrial Pollution Prevention; Mathematical analysis; Reservoirs; Seismic activity; Three dimensional models; Time domain analysis; Water; 토목공학; USA, California, Imperial Valley; arch dam-reservoir-foundation system; water length and height effect; earthquake behavior; lagrangian approach
• ISSN: 1226-7988; 1976-3808
• DOI: 10.1007/s12205-011-0815-7

In this study, water length and height effects on the earthquake behavior of arch dam-reservoir-foundation systems are purposed. The study can be classified into two parts. In the first part, in order to obtain a realistic 3D arch dam-reservoir-foundation model, water length effects on the behavior of the arch dam systems are investigated. For this purpose a double curvature arch dam is modeled by forming four different water lengths related to dam Height (H) as H, 2H, 3H and 4H. Each model is analyzed in time domain and the realistic model is obtained according to the analyses results. In the second part, water height effects on the behavior of the arch dam system are investigated. The arch dam obtained from first part of the study is modeled by forming four different water heights related to dam Height (H) as 0H, 0.33H, 0.66H and H. The behavior of the dam, reservoir and foundation are expressed in terms of displacements using Lagrangian approach. The foundation is taken into account as massless; behavior of reservoir is assumed to be linearly elastic, inviscid and irrotational. In this study, all systems are modeled by ANSYS finite element program and analyses are performed using IMPVALL/I-ELC180 component of Imperial Valley (1940) earthquake. Dynamic equations of motions are solved by using Newmark integration algorithm. It is seen that both water length and height affect the earthquake behavior of the arch dams considerably.