Abstract. Several series of measurements were conducted to explore the hydraulic characteristics of a V-shaped bottom channel by using low & high-speed velocity propellers for point-wise velocity measurements. Also, in ...

Abstract. The Marshall Stability of asphalt concrete is one of the most important parameters in mix design and quality control. This property depends on many factors such as gradation, percentage of crushed aggregates, ...

Abstract. This paper employs the Particle Swarm Optimization (PSO) method to solve the problem of the optimal design of cascade stilling basins. PSO is a relatively recent heuristic search method whose mechanism is ...

Abstract. There are several approaches for modeling the fatigue life and damage of asphalt pavements, such as stress-strain and damage mechanics. In this research, a simple mechanistic approach is used to explain the ...

Abstract. In this paper, a numerical approach to the reliability analysis of prestressed reinforced concrete long span bridges is presented. A bridge is modeled by nite element software and the analysis is performed in ...

Abstract. In this paper, a new method is proposed for identi cation of inelastic shear frame structures with hesteresis, using data collected on their dynamic response. It uses the Prandtl-Ishlinskii rate independent ...

Abstract. Arti cial Neural Networks (ANNs) have recently been introduced as an e cient arti cial intelligence modeling technique for applications involving a large number of variables, especially with highly nonlinear ...

Abstract. Performance based seismic design usually requires nonlinear dynamic or static analyses to assess the performance level of the structure under seismic action. To trace the exact performance point of a structure, ...

Abstract. Railway managers have a strong economic incentive to minimize track maintenance costs, while maintaining safety standards and providing adequate service levels to train operators. The objective of this study ...