The Northridge Fractures: Are We Learning the Right Lessons?
After the Northridge earthquake in January 1994, engineers found problems with special moment-resisting frames. There were multiple facture modes, and typical damage involved primary crack...
Columbus Clear Wells
At an average of 8 million gal. each, six new clear wells at the Hap Cremean Water Plant in Columbus, Ohio represent the largest post-tensioned, reinforced concrete noncircular tanks ever...
Guidelines for Evaluating Aging Penstocks
Lessons From Kobe
On Jan. 17, Kobe, Japan became the first post-World War II, heavily populated, industrialized area to bear the full brunt of a high-magnitude earthquake. Engineers hope the resulting destruction...
Functional Highway Design
In the past, the common highway design development process used by government agencies has often failed to incorporate the lessons learned from operational experience and research. However,...
Northridge Postscript: Lesson on Steel Connections
Immediately after the Northridge earthquake in January 1994, the general concensus was that steel-framed buildings performed extremely well. Later, inspectors were surprised to find weld...
Restructuring
America and Beyond
This proceedings,
In the Wet
The concept of using large diameter vertical cylinder piles of steel and concrete is not new. Vertical cylinders constructed in pneumatic caissons go back at least 70 years. Steel cylinders...
NDE for Steel Bridges
Nondestructive evaluation (NDE) is the only way to detect fatigue cracks hidden by the paint on steel bridges, and FHWA-sponsored research into the problem has been given highest priority....
Composite Sketch
Composite materials from the aerospace and military sectors are showing promise in highway, bridge and transportation applications. Some of the current and potential applications of composites...
Wood Working
Engineers may be more accustomed to working with concrete and steel, but for certain projects aesthetics, cost or other considerations may make wood the preferred choice. According to...
San Francisco CSO
Today, even a light rain can overload San Francisco's combined sewer overflow (CSO) system, sending untreated sewage and stormwater into the bay and ocean. This is especially...
Wave Forces on Inclined and Vertical Wall Structures
This monograph,
Impact-Echo Strikes Home
Diagnosing flaws without destroying the structure is the first step to cost-effective repairs. Impact-echo is one of the more successful nondestructive evaluation (NDE) methods that have...
Shotcrete for Underground Support VII
This proceedings consists of papers presented at the Shotcrete for Underground Support VII Conference held in Telfs, Austria, June 11-15, 1995. It covers three broad themes concerning...
Bridge Design: Reality Bites Back
Many bridge engineers tend to ignore the process nature of reality, the fact that everything in this universe changes from moment to moment. When they are given the responsibility for...
Engineering a Landslide
A slope failure in northwest Alabama has been stabilized using a system of grouted INSERT piles to provide load transfer across the failure surface of the slide. This system, referred...
Advances in Underground Pipeline Engineering II
The first international conference on Advances in Underground Pipeline Engineering was held in 1985. Some 50 authors and over 300 delegates from 20 countries took part in the presentations...
Designing for Drama
Near the Passaic River in Newark, N.J., not far from the famous Iron Bound restaurant district and Newark's Penn Station, construction crews swarm around the steel skeleton...
More Parking Above
Vertical expansion of six (6) new floors of parking garage on top of four (4) floors of existing structure that was built over three decades ago, adding 155,000 square foot of new structure....
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