A Seismic PRA Procedure in Japan and its Application to a Building Performance Safety Estimation: Part 2. Fragility Analysis
In this paper, a practical seismic fragility evaluation method for structure and equipment systems is proposed. Structural and equipment failures are considered here, reflecting detailed...

Reliability-Based Design Requirements for Foundations of Buildings Subjected to Earthquake
Optimum seismic design coefficients and safety factors with respect to shear and overturning failure modes are obtained for a set of multi-story frame buildings idealized as single-mass...

The Application of Reliability Based Design for Earthquake Resistant Communications Structures
Current earthquake design criteria consists of applying equivalent lateral static forces embodied in design codes. The structures designed in conformance with such provisions and principles...

Design of Buildings Under Earthquake Loadings Using Three-Stage Friction-Grip Elements
A simple method is given for the design of earthquake resistant buildings using three-stage friction-grip elements. Predesign is done by static analysis and verification is performed by...

Safety Improvement of Earthquake Loaded Structures Application of Semi-Active Control in Multi-Storey Buildings
This paper presents the studies for development of a new concept of aseismic design of structures. Basis of that engineering will be a structural optimization including elastic supported...

Damage Evolution in Reinforced Concrete Members Under Cyclic Loading
The paper presents a new damage indicator D, valid for reinforced concrete sections under cyclic loading. DQ, based on sectionally absorbed energies,...

Examples of System Optimization and Reliability in Bridge Design
The objective of this paper is to present examples of system optimization and reliability in bridge inelastic design. The optimum solution is defined as the bridge of least weight, subject...

Assessment of Safety of Existing Buildings Using Fuzzy Set Theory
In this paper, an approach to estimate structural safety which may serve as a bridge between the theoretical and empirical approaches is explored. The new method combines subjective judgment...

Design of Aircraft Wings Subjected to Gust Loads: A System Reliability Approach
A method for system reliability based design of aircraft wings is presented. A wing of a light commuter aircraft designed according to the FAA regulations is compared with one designed...

Probabilistic Concepts of Redundancy and Damage Tolerability for Structural Systems
Intermediate states of structural systems (prior to system collapse and after component loss) are focused herein. This area relates to important issues such as redundancy and damage tolerability....

Reduction of First Excursion Probability of Nonlinear Secondary System
This paper deals with reduction of first excursion probability of nonlinear secondary system subjected to seismic excitations. Especially, gap and friction characteristics are considered...

Envelope Crossing Rate and First Passage Probability
Various definitions of the envelope of a random response process are discussed. The statistical properties of the random envelope process based on these definitions are then derived and...

Response Variability of Isolated Structure Due to Randomness of Isolation Devices
Effect of randomness of restoring characteristics of an isolation device, which is considered to result from the randomness of material properties, configuration and setting error, on...

Reliability of Control Systems of Building Structures by Active Tendons
In this paper, a numerical assessment on the reliability of a control system of building structures by active cables is performed. Some control experiments on a 23-story shear-wall building...

Safety Evaluation of a Tall Building
This paper uses the extended Kalman filter to perform the system identification of a tall building with the aid of recorded accelerograms obtained from strong-motion seismographs. The...

Fatigue Design and Reliability Analysis of CFRP Composites
The statistical fatigue properties of unidirectional (UD) T800/3631 carbon/epoxy composite laminates are investigated in this paper. Fatigue tests were conducted under rotating bending....

The Estimation of Allowable Strength Based on Fatigue Reliability of Welded Part and Base Metal of Rail in Korea
In the allowable stress design, the safety of structures have been ensured by safety factor based on static strength. Under dynamic loading condition, the allowable stress based on allowable...

Utility of Reliability Index for Structural Design
Relations between design results, such as configurations, and the reliability indices, in accordance with the Advanced First Order Second Moment (AFOSM) method, are numerically investigated...

Safety Levels of Reinforced Concrete Box Culverts for Installing Power Supply Cables
The authors have examined the applicability of reliability-based design to the existing reinforced concrete box culverts for installing power supply cables. The lowest safety index of...

Structural Safety and Satisfaction
The mathematical program of a cost extremum constrained by safety, functional and other statements is a comfortable image of design. In this paper the various components of this program...

 

 

 

 

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