Developing the concept of performance based analysis and design has made the nonlinear dynamic analysis an efficient method for quantification of the seismic response of structures. Generally, this analysis is done by ...

In this paper, the recently developed meta-heuristic algorithm, named Ray Optimization (RO), was applied to optimize the thickness of granular layers in railwaytracks. RO is a multi-agent algorithm,  each agent of which ...

Urmia Lake, the second largest hyper-saline lake in the world, has experienced a significant drop in water level during the last decade. This study was designed to examine the water quality of Urmia Lake and to characterize ...

It is imperative that any soil improvement technique can considerably affect the soil media mechanical behavior. However, considering the recent researches, it can be concluded that a combined study on the effect of cement ...

Low temperature cracking is one of the main distresses observed in pavements made of hot mix asphalt mixtures. As a material property, the fracture toughness of asphalt pavements is a fundamental parameter for estimating ...

In this study, improvement of granular pumice soils strength by injection method in Nevşehir City (Turkey) was investigated. In the first phase of the study, the geotechnical properties of granular pumice soils were ...

In this paper, scour profiles downstream of adverse stilling basins due to the submerged jet issuing from a sluice gate, were investigated. Experiments were conducted in a wide range of sediment sizes, incoming flow Froude ...

Many researchers have studied building pounding to calculate the dissipated energy and the impact force between two buildings during earthquake. In this paper, a new equation is proposed to measure the impact force and ...

The aim of this article is twofold: (1) to provide more insight into the pattern of changes in modal parameters, including natural frequencies and mode shapes, of beams and girders resulting from the increasing of damage ...

The Endurance Time (ET) method is a time-history based dynamic pushover procedure. In this method, the structures are subjected to gradually intensifying acceleration called an acceleration function. Then, their performances ...

Seismic fragility analysis is one of the main steps of consequence based earthquake engineering process. Accurate uncertainties modeling involved in this methodology, affects the final results of seismic fragility analysis ...