Roller Compacted Concrete with Marginal Aggregates
Roller compacted concrete is a technology which is vastly expanding beyond the traditional uses of pavement and dam oriented projects. Hornsby Bend Wastewater Treatment Plant required...
The MPSP System: A New Method of Grouting Difficult Rock Formations
In unstable rock masses the traditional stage grouting methods may prove impractical or ineffective. A recent innovation has been the Multiple Packer Sleeved Pipe (MPSP) System. Akin to...
Foundation Treatment of Karstic Features Under TVA Dams
TVA has constructed many of its dams on limestone foundations. Some of these foundations have been highly weathered and required special treatment not only to ensure strength but to develop...
Highway Factors in Truck Wrecks
An examination is presented of highway factors as they interact with driver and vehicle factors in large truck accident causation. Examples of highway defects are discussed along with...
Effects of Driver Factors and Training on Wrecks
A training program for professional drivers is reviewed. The effects of driver factors, as well as their training, on accidents is presented....
Truck Operating Characteristics in Relation to Safety
For a two-year period large truck crashes on the interstate system in Washington State were investigated using a case-control method. For each large truck involved in a crash, three trucks...
Design Considerations for Trucks in Work Zones
In an Eastern state a 3. 8 mi (6. 2 km) work zone had 14 accidents during a project duration of 120 days. Eleven of the 14 accidents occurred at temporary crossovers where traffic was...
Accommodation of Large Trucks: Traffic Control Issues
The objective of this paper is to identify ways that large trucks can be accommodated safely and efficiently through traffic control. Traffic control is herein defined as encompassing...
Accommodating Larger Trucks at At-Grade Intersections
When a particular intersection serves a high volume of large truck traffic, design considerations should reflect the presence of those larger vehicles. This paper discusses three intersection...
Health Hazards Associated with Asbestos Exposure: Implication for the Construction Industry
The paper presents some asbestos diseases: lung cancer, mesothelioma; gastrointestinal cancers; asbestosis. A historical perspective of asbestos-related diseases is given. The occupational...
Training Requirements for Asbestos Workers and Supervisors
Although the Federal Occupational Safety and Health Administration (OSHA) has stipulated that minimum training to be provided to asbestos abatement workers and their supervisors, some...
Polyhedral Substitute Yield Conditions in Plastic Reliability Analysis
The method of invariant linear combinations of linearly associated lower bound safety margins is used for constructing upper bound approximations of the generalized reliability index with...
Probabilistic Model for Stability of Slopes
Presented herein is a probabilistic model based on derived distributions to predict shear strength of soils and the safety factor of slopes considering uncertain properties of soil, namely:...
Failure Probability Estimation of Series Systems
In this paper, an approximation scheme is presented for analysis of series structural systems where no exact solution exists. If the safety indices of the individual failure functions...
Bridge Reliability?Evaluation vs. Design
Probabilistic methods of structural safety are being widely accepted as a basis for rationally considering uncertainties and developing reliability based design specifications for various...
Reliability of Cracked, Prestressed Girders
For prestressed concrete structures in non-aggressive environments or where corrosion-protected prestressing strands are used, it may be possible to allow flexural cracking into the precompressed...
The Role of Decision Rules on Structural Safety Evaluation Systems
Three steps are involved during an assessment procedure. The first step is to make a diagnosis for possible causes of the damage, the second is to perform a qualitative evaluation including...
Stochastic Risk Assessment for Structural Safety
Through the United States the structural safety of major and/or innovative structures has become a serious concern for engineers and to the general public. The objective of this paper...
Quantifying Quality Improvement Programs
Structural codes are evolving to a limit state design basis in which the safety checks are derived from the underlying probability distributions of strength and loads. An example safety...
Approximate Reasoning in Engineering Decision Analysis
In this paper, the concept and methods of approximate reasoning are reviewed and discussed. The methodology of combining precise results of exact analysis, approximate solutions of exact...
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