SHAPE OPTIMIZATION OF CONCRETE ARCH DAMS TO ENHANCE SEISMIC PERFORMANCE

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TAJALI F.; AHMADI M.T.; MOHARAMI H.

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Journal: MODARES TECHNICAL AND ENGINEERING Year:2009 | Volume:- | Issue:35 (SPECIAL ISSUE ON CIVIL ENGINEERING) Page(s): 1-16

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Information Journal Paper

Title

SHAPE OPTIMIZATION OF CONCRETE ARCH DAMS TO ENHANCE SEISMIC PERFORMANCE

Author(s)

TAJALI F. | AHMADI M.T. | MOHARAMI H. | Issue Writer Certificate

Keywords

CONCRETE ARCH DAMQ2

OPTIMIZATIONQ2

SHAPEQ3

EARTHQUAKEQ2

Abstract

The aim of this paper is to present an applicable and practical model and to suggest an algorithm for SHAPE OPTIMIZATION of CONCRETE ARCH DAMs to enhance their seismic performance. In this research, dam body volume has been considered as the objective function and in order to increase the consistency with practical conditions, a great number of geometrical and behavioral constraints have been included in the mathematical model. Three loading conditions, i.e., gravity loading, dominant static loading and dynamic loading have been studied. In seismic loading, dynamic interaction of dam-foundation system and effect of the reservoir under longitudinal component of Operating Basis EARTHQUAKE spectrum have been considered. Capabilities of ANSYS Parametric Design Language (APDL) are applied for modeling the Dam-Foundation-Reservoir (DFR) system and sequential nonlinear approximation procedure is used for the OPTIMIZATION analysis. Each cycle of OPTIMIZATION problem have been solved by the SQP method using the DOT software package. This technique has been successfully applied to an existing arch dam in Iran. Results obtained from this example show that the modification and OPTIMIZATION of SHAPE could make considerable reduction in the dam body volume and costs; furthermore, it has a quite important role in increasing the safety against dynamic design loads by improving the stress distribution in the dam body.

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APA: Copy

TAJALI, F., AHMADI, M.T., & MOHARAMI, H.. (2009). SHAPE OPTIMIZATION OF CONCRETE ARCH DAMS TO ENHANCE SEISMIC PERFORMANCE. MODARES TECHNICAL AND ENGINEERING, -(35 (SPECIAL ISSUE ON CIVIL ENGINEERING)), 1-16. SID. https://sid.ir/paper/24964/en

Vancouver: Copy

TAJALI F., AHMADI M.T., MOHARAMI H.. SHAPE OPTIMIZATION OF CONCRETE ARCH DAMS TO ENHANCE SEISMIC PERFORMANCE. MODARES TECHNICAL AND ENGINEERING[Internet]. 2009;-(35 (SPECIAL ISSUE ON CIVIL ENGINEERING)):1-16. Available from: https://sid.ir/paper/24964/en

IEEE: Copy

F. TAJALI, M.T. AHMADI, and H. MOHARAMI, “SHAPE OPTIMIZATION OF CONCRETE ARCH DAMS TO ENHANCE SEISMIC PERFORMANCE,” MODARES TECHNICAL AND ENGINEERING, vol. -, no. 35 (SPECIAL ISSUE ON CIVIL ENGINEERING), pp. 1–16, 2009, [Online]. Available: https://sid.ir/paper/24964/en

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