Need a Dependable Backfill?Try a Flowable Fly Ash
Flowable fly ash is a relatively new cementitious structural backfill material. It can be used in water or in the dry and will flow into place without the usual labor-intensive activities...
Low Cement Content High Strength Concrete
The fundamental objective of this research project was to develop mix design information for structural grade concrete using high fly ash content. The fly ash used in this project was...
Advances in Fiber Reinforced Concrete
The idea of using strong discontinuous fibers as reinforcement for concrete seems to have been both a seduction and a challenge to many civil engineers. Adding the reinforcement to the...
Effect of Steel Fibers on the Cracking Behavior of Reinforced Concrete Continuous Beams
A research program was conducted with the aim of studying the cracking behavior of reinforced concrete continuous beams, as it is affected by using different combinations of main steel...
Foundation Design Considerations for Detroit DPM
The design loadings for support of the elevated guideway of the Detroit Downtown People Mover (DPM) consist of high vertical as well as horizontal loads. In order to simplify foundation...
Applying an Automated Storage and Retrieval System to a Centralized Bus Maintenance Facility
Gannett Fleming recently completed the design of a new Central Maintenance Facility for the Southern California Rapid Transit District. An integral part of this facility is an automated...
Structural Vibrations Associated with Large Incubation Tanks
It is the purpose of this paper to describe the format of an investigation wherein the train of evidence led from an assumption of a strictly mechanical cause to an actual cause that was...
Rational Design of Beam-Columns in Steel
The paper discusses the procedure as currently recommended in the AISC Manual for selection of beam-columns in steel and points to the inadequacy of this procedure for quick convergence...
Unsymmetrically Reinforced Concrete Columns
The development of column strength formulas for unsymmetrically reinforced sections has been developed in previous papers. However, aids such as interaction diagrams have not been available...
Towards Rational Design of Structural Members in Reinforced Concrete
With the increasing emphasis on cookbook designs, plug-in and punch-in formulas, and punch-in numbers in the personal computer program, there is a danger that the designer may accept the...
Advances in High Strength Concrete,
The technology for producing field placeable concrete with a 28 day compressive strength of 10,000 psi has been available for many years. With the recent use of microsilica as an additive...
State of the Art in Concrete-Polymer Materials
Concrete-polymer materials represent a relatively new technology in the construction industry. In some cases polymers are combined with portland cement concrete and, in other cases, polymers...
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...
Aseismic Capability Prediction from Failure Data
Forensic engineering evaluations of failures have produced a wealth of technical data. In this paper, evaluation of representative failure data from one practitioner provided relevant...
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...
Design of Cirata Concrete Face Rockfill Dam
The Cirata Hydro-Electric Project on the Citarum River in Western Java, Indonesia is at present under construction for Perusahaan Umum Listrik Negara (PLN). The project which is being...
Performance Prediction for Removal of Odorous Organics From Drinking Water by Adsorption
The authors address three questions: What do packed bed filters remove from suspension in water treatment plants? How do they accomplish this removal? How can this knowledge be used in...
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