Computational Methods in Civil Engineering
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Axial buckling analysis of an isotropic cylindrical shell using the meshless local PetrovGalerkin method
(University of Guilan, 20110401)In this paper the meshless local PetrovGalerkin (MLPG) method is implemented to study the buckling of isotropic cylindrical shells under axial load. Displacement field equations, based on Donnell and first order shear ...

A comparative study on pile group and piled raft foundations (PRF) behavior under seismic loading
(University of Guilan, 20110401)Study on the seismic behavior of piled rafts and pile groups while the same amount of construction material and excavation is used in their construction, are the main objective of this research. The process where the raft ...

A multilined behavior simulation approach for liquefaction of earthdam
(University of Guilan, 20110401)A few of the presented soil behavior models are capable of predicting the triggering and post liquefaction and also shear band mechanism through the soil media. The assessment of earthdam body behavior as a soil structure ...

Determining the best water quality model for the rivers in north of Iran (case study: Pasikhan River)
(University of Guilan, 20110101)The aim of this paper is to study the popular models used for the simulation of major elements of a water quality system. The present study compares results of the CEQUALW2 model with the WASP5 and MIKE11 models to assess ...

Second order sensitivity analysis for shape optimization of continuum structures
(University of Guilan, 20110101)This study focuses on the optimization of the plane structure. Sequential quadratic programming (SQP) will be utilized, which is one of the most efficient methods for solving nonlinearly constrained optimization problems. ...

Analysis of nonconnected piled raft foundations (NCPRF) with cushion by finite element method
(University of Guilan, 20110401)For the optimum design of Piled Raft Foundations (PRF), the concept of settlement reducer piles has been applied. However, when these piles are connected to the raft, a high stress may develop in the relatively small number ...

Appraisal of the evolutionarybased methodologies in generation of artificial earthquake time histories
(University of Guilan, 20110401)Through the last three decades different seismological and engineering approaches for the generation of artificial earthquakes have been proposed. Selection of an appropriate method for the generation of applicable artificial ...

Wave propagation theory in offshore applications
(University of Guilan, 20110401)A frequencywavenumberdomain formulation is presented in this paper for calculation of the Green's functions and wave propagation modes in a stratified fluid body underlain by a layered viscoelastic soil medium. The Green's ...

Proposal of lateral load pattern for pushover analysis of RC buildings
(University of Guilan, 20110401)The proposal lateral load pattern for pushover analysis is given in two forms for symmetric concrete buildings: 1(X/H)0.5 for lowrise and midrise buildings, 2 Sin(ΠX/H) for highrise buildings. These two forms give ...

Three dimensional static and dynamic analysis of thick plates by the meshless local PetrovGalerkin (MLPG) method under different loading conditions
(University of Guilan, 20110101)In this paper, three dimensional (3D) static and dynamic analysis of thick plates based on the Meshless Local PetrovGalerkin (MLPG) is presented. Using the kinematics of a threedimensional continuum, the local weak form ...

Sensitivity analysis of waters at higher risk subjected to soil contaminations
(University of Guilan, 20110101)Existence of heavy minerals in waters in some regions causes serious environmental pollution and affects the soil and water resources quality. Soil and waters sensitive to pollutants were investigated in this research, ...

Comparison of two integration schemes for a micropolar plasticity model
(University of Guilan, 20110101)Micropolar plasticity provides the capability to carry out postfailure simulations of geostructures due to microstructural considerations and embedded length scale in its formulation. An essential part of the numerical ...

Prediction of concrete mix ratios using modified regression theory
(University of Guilan, 20110101)The strength of concrete is a function of the proportions of the constituent materials, namely, cement, water, fine and coarse aggregates. The conventional methods used to determine the mix proportions that will yield the ...

A dynamic lattice model for heterogeneous materials
(University of Guilan, 20110101)In this paper, the mechanical behavior of threephase inhomogeneous materials is modeled using the mesoscale model with lattice beams for static and dynamic analyses. The Timoshenko beam theory is applied instead of the ...

A simulated annealing approach to solve the network design of oneway streets: case of Shiraz network
(University of Guilan, 20130101)This study is devoted to the formulation of the network design problem of oneway streets and the application of simulated annealing (SA) algorithm to solve this problem for a large real network. It discusses some points ...

Equilibrium condition nonlinear modeling of a cracked concrete beam using a 2D Galerkin finite volume solver
(University of Guilan, 20120101)A constitutive model based on two–dimensional unstructured Galerkin finite volume method (GFVM) is introduced and applied for analyzing nonlinear behavior of cracked concrete structures in equilibrium condition. The developed ...

Assessment of the conventional control algorithms and proposing a modified displacement feedback control for performancebased design of structures
(University of Guilan, 20120101)An enhanced displacement feedback structural control procedure is presented for performancebased design in this paper. At first, a comparative study is implemented assessing three most common active control algorithms ...

Buckling of functionally graded stiffened and unstiffened plates using finite strip method
(University of Guilan, 20130101)This paper deals with local buckling analysis of rectangular functionally graded material plates using finite strip method and based on classical plate theory. The modulus of elasticity of the plate is assumed to vary ...

Enhanced ACS algorithms for plastic analysis of planar frames
(University of Guilan, 20130101)In recent years, the trend in solving optimization problems has been directed toward using heuristic algorithms such as neural networks, genetic and ant colony algorithms. The main reason for this trend can be attributed ...

Validation and application of empirical shear wave velocity models based on standard penetration test
(University of Guilan, 20130101)Shear wave velocity is a basic engineering tool required to define dynamic properties of soils. In many instances it may be preferable to determine Vs indirectly by common insitu tests, such as the Standard Penetration ...