Abstract: The stochastic analysis of composite structures with partially restrained (PR) connections under seismic loads present some interesting and challenging issues to practicing engineers. This paper proposes an efficient, robust and accurate method for stochastic forced vibration analysis of concrete–steel composite structures allowing for PR connections. These are followed by suitable numerical example which indicates that employment of such a stochastic forced vibration analysis. The Kocaeli earthquake in 1999 is considered as a ground motion. The connections parameters and material properties are considered to be random variables. It is essential to properly consider the PR connections in the stochastic dynamic analysis and design of the steel-concrete composite structures, since design forces change significantly. The assumption that the connections are rigid, which is routinely used in the application, is not proper. The effect of the variability connection stiffness on the composite

• Publication Date: 14-Dec-2014
• DOI: 10.15224/978-1-63248-035-4-82
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Abstract: The rapid population growth in some urban areas has caused major changes in land use, in which many productive agricultural lands have been converted into residential or business. These conditions have reduced the land's ability to absorb and be infiltrated by rainwater particularly during rainy season, resulting flooding and decrease of groundwater. The purpose of this study was to develop the optimum porous asphalt mixture design, which should provide a satisfactory level of load carrying capacity and permeability capability. To achieve the objective, three scenarios of asphalt porous mix designs were conducted using: (a) standard material combined with pyrophyllite, (b) standard material combined with steel slag, (c) varied gradations of standard materials. A total of 60 specimens per scenario (180 total of specimens) were prepared in accordance with the Marshall Test procedures. Each sample is then tested to evaluate its permeability capability and its Marshall characteristics perf

• Publication Date: 14-Dec-2014
• DOI: 10.15224/978-1-63248-035-4-81
• Views: 0
• Downloads: 0