فهرست مقالات reliability index

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  1 - Structural Drift Corresponding to the Critical Excitations
  Mohammad Hosein Soltani Seyed Hooman Ghasemi
  While the existing structures, even recently constructed ones are subjected to the critical earthquakes, the catastrophic devastations are expected to occur. Therefore, at least for several important structures such as power plants, infrastructure, and buildings, there چکیده کامل

  While the existing structures, even recently constructed ones are subjected to the critical earthquakes, the catastrophic devastations are expected to occur. Therefore, at least for several important structures such as power plants, infrastructure, and buildings, there is a need to consider the critical excitation analysis. One of the important criteria in the seismic design of the structures using the criteria in critical excitation is to control the maximum amount of structural displacement. However, the required characteristics of the analysis and design of the structures are generally random variables and have many uncertainties. Therefore, the probability-based analysis should be accomplished to determine the most probable structural responses. The main objective of this research is to investigate the reliability level of buildings subjected to the critical excitations for concerning the steel structures. In due course, the wide range of the SDOF structures is investigated subjected to real ground motions of the critical excitations. Eventually, the reliability index for structures is given in terms were divulged. پرونده مقاله
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  2 - Reliability Index For Reinforced Concrete Frames Using Nonlinear Pushover And Dynamic Analysis
  Ahmad A. Fallah Abdoreza S. Moghadam Saeed Mohammadzadeh
  In the conventional design and analysis methods affecting parameters (loads, materials'strength, etc) are not set as probable variables. Safety factors in the current Codes andStandards are usually obtained on the basis of judgment and experience, which may beimproper o چکیده کامل

  In the conventional design and analysis methods affecting parameters (loads, materials'strength, etc) are not set as probable variables. Safety factors in the current Codes andStandards are usually obtained on the basis of judgment and experience, which may beimproper or uneconomical. In technical literature, a method based on nonlinear static analysisis suggested to set Reliability Index on strength of structural systems. In this paper, a methodbased on Nonlinear Dynamic analysis with rising acceleration (or Incremental DynamicAnalysis) is introduced, the results of which are compared with those of the previous (StaticPushover Analysis) method and two concepts namely Redundancy Strength and RedundancyVariations are proposed as an index to these impacts. The Redundancy Variation Factor andRedundancy Strength Factor indices for reinforced concrete frames with varying number ofbays and stories and different ductility potentials are computed and ultimately, ReliabilityIndex is determined using these two indices. پرونده مقاله