A Study of Shield Tunnel's Earthquake Prevention Under a Big Earthquake
Currently, the most commonly used approach for determining the aseismicity of a shield tunnel is the 'Response Displacement Method.' This is based on analysed...
Telecommunications Facilities Earthquake Readiness Since San Fernando
The vertical rack architecture of telecommunication offices showed some weaknesses during the San Fernando earthquake in 1970. Efforts have been made since then to improve performance...
Restrained Underground Piping?Some Practical Aspects of Analysis and Design
This paper is a brief update of stress analysis techniques published earlier [1] to aid the analyst in qualifying continuous welded steel buried pipelines that are subject to seismic soil...
Seismic Analysis and Design of Buried Piping
Among the causes of damage to buried pipelines due to earthquakes, the one that is most complicated to analytically deal with and that is most credible at safety related sites such as...
Earthquake Response of Liquid-Filled Pipeline at Finite Depth Below Ground Surface
This paper deals with the problem of earthquake response analysis of pipelines, empty or fully filled with liquid and buried at a finite depth below the ground surface. Emphasis is placed...
Finite Element Analysis of Three-Way Joint of Buried Pipelines Under Earthquake Loads
A quasi-static finite element procedure for the stress analysis of three-way joint of buried pipelines under earthquake loads has been established by quasi-conforming thin circular cylindrical...
Evaluation of Earthquake Resistance of Buried Continuous Pipelines at Bent Parts
Small diameter pipelines are susceptible to damage at bends due to large seismic ground displacements. The 'Deformability Index' is defined as the earthquake...
Hybrid Response Analysis of Buried Corrugated Pipeline Under Seismic Wave
Polyvinyl chloride and polyethylene corrugated pipes are recently used for buried water or sewer pipelines and also used as containers for electric cables. Seismic behavior of these pipelines...
Performance of Pipelines During Soil Liquefaction
This paper presents the behavior of buried pipelines during soil liquefaction through reconnaissance work after the 1989 Loma Prieta Earthquake and response analysis based on a beam theory....
Serviceability Analysis of Memphis Water Delivery System
In this paper, Memphis water delivery system is introduced and its seismic performance is analyzed under various seismic conditions. Prior to the seismic analysis, a flow analysis of the...
Cross-Impact Analysis for Lifeline Interactions
A probabilistic method to evaluate the seismic risk of urban lifeline network systems is presented with emphasis on the interactive aspects of lifeline earthquake disaster. First, the...
Fuzzy Reasoning for Earthquake Damage Assessment of Large-Scale City Gas Systems
A method for earthquake damage assessment is proposed for a large-scale city gas system. Since lifeline systems are usually laid in a large area and are composed of a number of component...
Seismic Hazard Analysis of Buried Pipeline for Design
This paper concerns mainly the following three items on seismic hazard analysis of buried pipeline for design: (1) effects of pipeline length on risk, (2) effects of local site conditions...
Earthquake Loss Estimation Modeling of the Seattle Water System Using a Deterministic Approach
This paper summarizes the project and resulting report entitled Earthquake Loss Estimation Modeling of the Seattle Water System (Ballantyne, 1990) conducted under funding from the United...
Seismic Design Criteria for Transportation Structures
Seismic criteria for the design of transportation stuctures have evolved slowly since their inception in the early 1940s. Although seismic design criteria are far more sophisticated than...
Applications of Strain and Deflection Monitoring Systems for Post-Earthquake Safety and Usability of Lifelines
The paper proposes and discusses a variety of strain and deflection monitoring devices and systems for post-earthquake safety evaluation of lifelines. There is clearly a need, both in...
Philosophy for Treatment of High-Pressure Natural Gas Pipelines at Active Fault Crossings
Natural gas from fields in the overthrust belt of southwest Wyoming will be collected and transported to Southern California. The proposed Kern River Pipeline will transport gas to Daggett,...
Evaluation of Techniques for the Seismic Modeling of Elevated Freeway Bridges
Following the October 1989 Loma Prieta earthquake in Northern California, a number of seismic parametric studies were performed for both two-level elevated freeways and single-column bridge...
Stochastic Responses of Lifeline Systems Under Seismic Excitations
A wave superposition model is proposed to predict the field motion on the basis of the seismic records obtained from a strong motion array. By assuming the ground motion to be a homogeneous...
Seismic Analysis and Design of RC Lifelines
This paper describes the general approach for analyzing a soil-reinforced concrete lifeline system subjected to seismic loading, and the development and importance of transfer functions...
Return to search