Inelastic Stability of Thin Walled Metal Tubes Under Cyclic Loading Conditions
This paper is concerned with an experimental investigation on the inelastic stability behavior of thin-walled tubular specimens of steel, aluminum and stainless steel, under cyclic loading...

Localization Instabilities Due to Damage and Fracture Propagation: Application to Tensile Specimens
In recent research it has become clear that localization of damage due to strain softening as well as propagation of interactive cracks can result in bifurcations of the loading path characterized...

Compressive Strengths of Lean Concretes Containing Fly Ash
The compressive strength development of lean concretes containing fly ash was evaluated. Concretes were prepared at total cementitious materials contents of 423, 517, and 564 lb/yd3...

Anomalous Structural Size Effect in Cohesive Materials Like Concrete
This contribution analyses on theoretical grounds the size effect trends in special cases where - unlike most experimental situations in fracture research - the specimen is not precracked...

Design and Performance of Earth Retaining Structures
The proceedings of the 1990 Specialty Conference on Design and Performance of Earth Retaining Structures was held in Ithaca, New York from June 18-21, 1990. It presents a total of 50 papers...

The Dredging Dilemma
Disposal of dredge materials is becoming a national environmental problem. Disposal sites on land are becoming extremely scarce and environmental objections growing. There are also objections...

Siphon Quenches Drought
An age-old engineering concept�the siphon�enjoys new success in alleviating a severe water shortage at the Ketchikan Pulp Company's Ward Cove Pulp Mill. With major layoffs...

More Than a Public Hearing
Too often, required community input is reduced to the sometimes dreaded public hearing. Many formal public-involvement programs are comprised of no more than this minimal, yet essential,...

Prospects for International Engineering Practice
International trade is growing in construction products and services. It is stimulated by international efforts to reduce technical barriers to trade and the formation of a single European...

Commentary on Building Code Requirements for Masonry Structures (ACI 530-88/ ASCE 5-88) and Commentary on Specifications for Masonry Structures (ACI 530.1-88/ ASCE 6-88)
Commentary on Building Code Requirements for Masonry Structures (ACI 530-88/ASCE 5-88) and...

Seismic Surgery
The authors describe the installation of seismic isolators in the columns of an eight-story concrete building in Seal Beach, Calif., which serves as Information Systems Center for Rockwell...

U.S. Landmarks: Handle With Care
Landmarks are treated with kid gloves during restoration, but striking a balance between costs and aesthetics is difficult. In addition to structural integrity, original construction methods...

Seattle Swing
The swing bridge has long been out of favor in the U.S. because of the navigational hazard presented by mid-channel pivot piers. A consortium of engineers is updating the design to a state-of-the-art...

Upgrading Antique Sewers
In a $35 million, four-year program, the Massachusetts Water Resources Authority (MWRA) completely restructed the pumping system serving the sewers under East Boston, Chelsea, Revere and...

Serviceability and Durability of Construction Materials
The proceedings of the Materials Engineering Congress held in Denver, Colorado from August 13-15, 1990 include papers from 37 sessions that address the theme Serviceability and Durability...

Building Blocks for the Future
In the near term, advanced, conventional materials�namely higher-strength steel and concrete�will dominate infrastructure rehab. New steels of higher strengths and toughness are increasingly...

Projects That Point
This is only a small sampling of what we can expect inthis decade. An $80 million kiln at Port Arthur, Tex., reportedly the largest of its kind in the U.S., handles bulk solids and sludges....

Designing in Circles
Round buildings are a popular�but sometimes expensively perceived�design choice. With careful engineering and planning, they can offer a creative, cost-competitive option. They add another...

The Invisible Engineer
For all their contributions to society, engineers have worked largely behind the scenes, seldom remembered in the dedication ceremonies of bridges and tunnels and skyscrapers. Several...

Taming Structural Vibrations
Vibration is a common problem in buildings that contain large spaces and long spans, especially gymnasiums and dance studios. Research shows that people respond more adversely to continuous...

 

 

 

 

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