A Summary of the Seismic Qualification Utilities Group (SQUG) Program
In December of 1980, the Nuclear Regulatory Commission (NRC) initiated Unresolved Safety Issue (USI) A-46 to address the question of the seismic adequacy of equipment in 49 operating nuclear...
Obtaining Reliable Data from Fragility Tests
The parameters discussed in this paper are the same as those present in normal seismic qualification testing. These parameters behave differently in high level acceleration tests and their...
Earthquake Experience Data on Power and Industrial Structures: Applications to Seismic Design and Evaluation
An extensive study was conducted to document the seismic performance of typical power plant and industrial structures in selected recent strong earthquakes and to correlate the performance...
Impact on Test by Various Multiaxis Excitation
The purpose of this paper is to provide input guidelines in evaluating various types of multiaxis excitation on fragility level testing of electronic devices. There are many variables...
Seismic Design-Qualification of Non-Safety Related Items in Safety Related Envelope
This presentation pertains to Seismic Design-Qualification for those portions of structures, systems, or components in a Nuclear Plant whose continued function is not required but whose...
Recent Developments in Resonant Column Testing
The resonant column method of testing soils is reviewed. Recent developments in equipment, specimen configurations, and testing schemes are presented. Some equipment can perform both resonance...
Limits on Dynamic Measurements and Instrumentation
The implementation of the FFT (Fast Fourier Transform) into portable instrumentation has contributed to advances not only in signal analysis but also to new and improved transducers for...
Shallow Seismic Exploration in Soil Dynamics
Methods of shallow seismic exploration of soils are continually developing and evolving. Advances in techniques and equipment for performing crosshole and downhole tests, new data on interpretation...
Field Data Collection for Traffic Studies
Microcomputer applications have emerged in all areas of traffic data collection, reduction and utilization. They have done much to improve the productivity and credibility of the data...
Advances in the Art of Testing Soils Under Cyclic Conditions
The session on Advances in the Art of Testing Soils under Cyclic Loading Conditions was organized by the Soil Dynamics committee of the American Society of Civil Engineers in an endeavor...
Uplift Behavior of Anchor Foundations in Soil
This publication includes a series of studies which provide a general and consistent framework for the design of anchors in uplift. The papers are presented in three groups: (1) State-of-the-art...
Seismic Experience Data?Nuclear and Other Plants
The Seismic Qualification Utilities Group (SQUG) was formed to explore the use of earthquake experience data of equipment performance to resolve Nuclear Regulatory Commission (NRC) initiated...
Richart Commemorative Lectures
The geotechnical specialty known as soil dynamics has developed during the past 25 years from a minor role to a mainstream discipline. Professor F. E. Richart has played a major role in...
Accounting for Every Pipe
The Norfolk Sanitary Sewer Inventory and Appraisal System contains individual records for each of the 20,000 pipe segments in the Norfolk sewer system. The data, assembled from construction...
Simplified Design and Construction Control for Roller Compacted Concrete
This paper presents a simplified approach to the design and construction quality control of roller compacted concrete (RCC) based on research of previous projects, discussions with experienced...
Slurry Trenches for Containing Hazardous Wastes
Slurry trench technology has not advanced much during the past 10 years due to a lack in research and development, the excerbated litigious climate in the environmental protection field,...
Flowable Fly Ash: A New Cement Stabilized Backfill
Cement stabilized fly ash placed at a plastic fluid consistency is a new structural backfill material that flows into place, either above or below water, without using sophisticated construction...
Fluid/Structure Interaction During Seismic Excitation
Hydrodynamic loading and other fluid/structure interaction effects need to be considered in the design of structures which contain, surround, or are submerged in fluids when subject to...
Just a Few More Tests and We'll Be Sure
This short paper presents a practical approach to data analysis, with the intent of suggesting that simple statistical methods - when tailored to geotechnical problems - do in fact provide...
Principles of Probabilistic Characterizations of Soil Properties
Sources of uncertainties affecting characterization of soil properties in a homogeneous soil layer include inherent spatial variability, systematic test bias, random test errors, calibration...
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