نتایج جستجو برای: concrete arch dams

تعداد نتایج: 105173  

M.T. Aalami , R. Parsiavash, S. Talatahari,

For optimization of real-world arch dams, it is unavoidable to consider two or more conflicting objectives. This paper employs two multi-objective differential evolution algorithms (MoDE) in combination of a parallel working MATLAB-APDL code to obtain a set of Pareto solutions for optimal shape of arch dams. Full dam-reservoir interaction subjected to seismic loading is considered. A benchmark ...

Journal: :Structural control & health monitoring 2023

This study proposes a method for evaluating crack variations on structural performance of concrete dams using observational and computational output. The is represented by the system entropy in dams, stress-strain field established incorporating observations simulations calculations. Considering characterization ability sample points, weighted sequence constructed with selected index system. Th...

2010
Hong Zhong Gao Lin Jianbo Li

The simulation of damage process of high arch dam subjected to strong earthquake shocks is significant to the evaluation of its performance and seismic safety, considering the catastrophic effect of dam failure. However, such numerical simulation requires rigorous computational capacity. Conventional serial computing falls short of that and parallel computing is a fairly promising solution to t...

the nonlinear discrete crack modeling of Shahid Rajaee thin arch dam is considered. The interface elements are positioned such that certain potential separated blocks can form possible failure mechanisms. The dynamic stability of theses blocks are investigated by a special finite element program "MAP-73" which its nonlinear algorithm and interface elements formulation are presented.

A. Kaveh, V.R. Mahdavi,

In recent years, the importance of economical considerations in the field of dam engineering has motivated many researchers to propose new methods for minimizing the cost of dames and in particular arch dams. This paper presents a method for shape optimization of double curvature arch dams corresponding to minimum construction cost while satisfying different constraints such as natural frequenc...

Saeed Gholizadeh, Seyed Mohammad Seyedpoor,

An efficient methodology is proposed to find optimal shape of arch dams on the basis of constrained natural frequencies. The optimization is carried out by virtual sub population (VSP) evolutionary algorithm employing real values of design variables. In order to reduce the computational cost of the optimization process, the arch dam natural frequencies are predicted by properly trained back pro...

M. T. Aalami, R. Parsiavash, S. Talatahari,

This paper presents an efficient optimization procedure to find the optimal shapes of double curvature  arch  dams  considering  fluid–structure  interaction  subject  to  earthquake  loading. The optimization is carried out using a combination of the magnetic charged system search, big bang-big crunch algorithm and artificial neural network methods. Performing the finite element  analysis  dur...

A. Akbarpour , H. Chiti, H. R. Naseri, M. Khatibinia,

This study focuses on the shape optimization of concrete gravity dams considering dam–water–foundation interaction and nonlinear effects subject to earthquake. The concrete gravity dam is considered as a two–dimensional structure involving the geometry and material nonlinearity effects. For the description of the nonlinear behavior of concrete material under earthquake loads, the Drucker–Prager...

2017
S. Talatahari M. T. Aalami

For optimization of real-world arch dams, it is unavoidable to consider two or more conflicting objectives. This paper employs two multi-objective differential evolution algorithms (MoDE) in combination of a parallel working MATLAB-APDL code to obtain a set of Pareto solutions for optimal shape of arch dams. Full dam-reservoir interaction subjected to seismic loading is considered. A benchmark ...

Journal: :Sustainability 2023

For the structural health diagnostic of concrete dams, mathematical monitoring model based on measured deformation values is great significance. The main purpose this paper to reconstruct ageing component and temperature in traditional Hydraulic-Seasonal-Time (HST) hybrid by combining values. On one hand, a better for displacement dams proposed combined with Burgers separate instantaneous elast...

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