21st Century Timber Engineering
Timber engineering is moving into the 21st Century faced with challenges in technology, governmental mandates and environmental concerns. Engineers are continuously being challenged in...
The Financing Fray
Interview with two executives of the U.S. firm Morrison-Knudsen: Donn Smith, senior vice president of project finance at M-K's International Group, and Richard White, vice...
The Copper-Clad Library
The design vocabulary for the new Phoenix Central Library includes saddlebags, power bellies, tensegrity and corrugated siding. The saddlebags are copper-clad, steel-framed core structures...
Reliability and Uncertainty Analyses in Hydraulic Design
Prepared by the Subcommittee on Uncertainty and Reliability Analyses in Design of Hydraulic Structures of the Technical Committee on Probabilistic Approaches to Hydraulics of ASCE. ...
Can Engineers Cut Curtain-Wall Failures?
For many reasons, including owners' false perception of economy engineers have abdicated responsibility for curtainwall design. Failures of curtainwall components are very...
Airport Towers: A New Generation
Airport control towers are a unique building type with monumental significance, both for the cities that own and operate the airports, and for the FAA which owns and operates them. Airport...
Arches For A Parkway
The final phase of construction on the Natchez Trace Parkway (which follows a centuries-old 450 mi trail between Natchez, Miss. and Nashville, Tenn.) is nearing completion almost 60 years...
What Sank the Lacey Murrow?
This month marks the third anniversary of the sinking of the Lacey V. Murrow Floating Bridge near Seattle, Wash., in the midst of a major rehabilitation project. Early on Nov. 25, 1990,...
The Hazard In Using Probabilistic Seismic Hazard Analysis
Probabilistic seismic hazard analysis has been used extensively for major dams; nuclear power plants; liquefied petroleum gas installations; repositories for dangerous wastes; sensitive...
A Dome To Remember
Under intense pressure from all sides, a trio of engineering and architectural firms working in San Antonio, Tex., turned the political coal of a stadium everyone wanted to build (but...
Ups and Downs in Chicago
The Chicago Title and Trust Center�a 50-story mixed-use complex which opened late last year�offers 1.3 million sq ft of above-grade space, and three levels of below-grade parking. The...
Seismic Remediation for Earth Dams
Over the last 30 years or so, new analysis methods and case histories of dam performance in earthquakes have significantly changed our understanding of the severity of the earthquake hazard...
Imaging the Future
Design professionals of all stripes, including engineers, will find themselves working with a variety of visual images more and more in the near future. Image literacy, an understanding...
Doing Business In...Bangkok: More than just Temples
Traffic is the most notorious problem afflicting foreign visitors, though air pollution and the enforcement of building codes (in the wake of a provincial hotel collapse in mid-1993) are...
Quarry Techniques for Dimensional Breakwater Stone
On the Texas Gulf Coast, there has evolved a unique design for breakwater and jetty structures. The Galveston District of the U.S. Army Corps of Engineers, the designer of these structures,...
RCC for Rehabilitation of Dams in the USA-An Overview
The use of roller-compacted concrete (RCC) has rapidly become a powerful new tool in the USA for engineers involved with the rehabilitation of existing dams. Starting in 1980, RCC has...
The Design and Construction of Shuikou Project RCC Diversion Wall
Shuikou Hydroelectric Project, currently under construction on the Minjiang River in the People's Republic of China is a concrete gravity dam having a maximum height of 101...
Design of Pena Colorada Tailings Retention Dam
This paper discusses the details involved in the design of a 66 meter high RCC dam to be used to create storage for slurry from an iron ore mining operation located near Manzanillo, Mexico....
Final Design and Construction of Gibraltar Dam Strengthening
The results of a 1983 safety evaluation of Gibraltar Dam indicated that the dam did not meet seismic safety standards. A remedial scheme involving the addition of a roller compacted concrete...
Design of the Boney Falls RCC Emergency Spillway
The Boney Falls Emergency Spillway was designed as a mass roller compacted concrete structure. Alternative designs considered include a fuse plug, lowering the embankment and paving with...
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