Retaining Wall
The foundation of this off-ramp in Manchester, New Hampshire is made up of end-bearing piles and sloping rock anchors�an innovation that is unique to the United States. End bearing piles...
Bascule
The Columbus Drive Bascule Bridge in Chicago is one of the largest bascule bridges in the world with a 270 ft. span and 1l0 ft. width. Four welded steel box girders support each of the...
Limit State Analysis of Lattice Steel Transmission Towers
The background and present status for limit state analysis of lattice steel towers at the Bonneville Power Administration is presented. Conceptual development, a computer program, and...
Reliability-Based LRFD for Transmission Structures
A simple reliability-based Load and Resistance Factor Design (LRFD) method is proposed for the structural design of electric transmission lines. With the proposed method, the designer...
The New Art of Structural Engineering
Exerpt from
Compression Load Tests on Concrete Piles in Alluvium
A series of tests was accomplished during the design phase for the West Seattle Freeway Bridge Replacement project. The results of instrumented compression load tests in alluvial deposits...
New Tools Help Find Flaws
Certain electromagnetic tools for nondestructive evaluation of existing infrastructure, though not widely used, can cut cost and time of identifying flaws in existing infrastructure. Five...
Repairing New York's Historic Bridges
The Brooklyn and Manhattan bridges are just two of New York City's venerable structures that are undergoing rehabilitation. Current work on the Brooklyn involves enlarging...
Research Needs Related to the Nation's Infrastructure
The engineering community, which designs and constructs infrastructure facilities, must look for innovative ways to do a more efficient job. Although some research has focused on problems...
Calendar: A 1985 Calendar of Bridge Photographs
Featured bridges are: Golden Gate Bridge (CA); Richmond . San Rafael Bridge (CA); Market Street Bridge (PA); Alsea Bay Bridge (OR); Longview Bridge (WA); Tyrone Bridge (KY); Newport Bridge...
U.S. Bridges: The Bias Towards Mediocrity
This article contends that in this century the United States has lost its leadership in bridge design and explores reasons why this came to be. Comparative examples of various bridge types...
Brooklyn Bridge
To commemorate the 100th anniversary of opening of New York City's Brooklyn Bridge in 1883, the Smithsonian Institute has mounted, and opened to the public in the anniversary...
Design for Ice Forces
Part one of this publication on design for ice forces emphasizes offshore and coastal structures. In this section , seasonal ice conditions typical of offshore and coastal zones are reviewed....
Behavior of Metal Structures
This technical symposium illustrates the various aspects of transfer of information from research results to engineering practice. The papers cover historical technical background, current...
Bridge
Seven Mile Bridge is the longest, continuous precast post-tensioned segmental concrete bridge in the world. In addition to its function as a main artery connecting the Florida mainland...
Throgs Neck Bridge: Why Did Its Deck Deteriorate?
Rapid deterioration of the concrete roadway decks of the Throgs Neck Bridge approach viaducts was found to be due to secondary tensile and fatigue stresses brought on by deflection of...
Steel Beats Concrete for Idaho Bridge
As an alternative to prestressed concrete design, the State of Idaho and the Federal Highway Administration encouraged the use of cable-stressed steel girder design for the Bonners Ferry...
Design of Bridges for Ice Forces
Sources of knowledge on ice forces and ice effects on bridges are listed and discussed briefly. Comments are made on experience of damage by ice and on the influence on bridge costs of...
Record Concrete Box Girder Spans Houston Ship Channel
The Houston Ship Channel Bridge is an American advancement of the cast in place, post-tensioned, segmentally constructed, concrete box girder design. In spite of the complex and unique...
The Performance Evaluation
Effective performance evaluations set goals for professional advancement and also bridge individual and corporate values. The four specific stages of a performance evaluation consist of:...
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