Ancient Concept, Modern Context
For several centuries, Bibliotheca Alexandrina was the cultural center of the Western world. It was built by the heirs of Alexander the Great some 2,400 years ago and burned, some say...

Ultimate Bearing Capacity of Small Diameter Steel Pipe Piles

Embankment Construction in Soft Soils Using Vibro Concrete Columns (VCC)

Sinkhole Remediation beneath a Damaged Structure

Stronger Longer
Like many older concrete bridges, the Sierrita de la Cruz Creek Bridge, a 1957 crossing near Amarillo, Texas, suffered from concrete deterioration. When the Texas Department of Transportation...

The Many Faces of RCC
The Chinese government, under an aggressive move to boost its hydroelectric power output, is building an extensive system of dams nationwide. Chinese engineers have developed innovative...

Bell's Bridge Rehabilitation
Bell's Bridge carries Tidewater Drive, a major urban arterial in the City of Norfolk, Virginia, over Wayne Creek, a tributary of the Lafayette River. During a routine inspection in 1995,...

Magnetic Perturbation Imaging for Prestressed Concrete Evaluation
Many prestressed concrete bridge structures in the United States and other parts of the world are over thirty years old and have shown various signs of distress. Corrosion or fracture...

Effect of Column-to-Beam Strength Ratio on Seismic Performance of RC Moment Frames
Reinforced concrete (RC) moment frames are often used in building applications. During strong earthquake excitations, such buildings have been subject to soft-story or column sidesway...

Rehabilitation of the Packers Falls Bridge
The Packers Falls Bridge was constructed in 1912 and consists of a 42' (12.8m) single span, reinforced concrete arch structure. This bridge was constructed using a unique forming system...

Evolution of Composite Floor Systems in the United States
Composite floor systems, which combine structural steel beams with a cast-in-place concrete slab, have grown in popularity in the U.S. during the past 40 years. In most early applications,...

The Effect of Locked-In Curvature on PCC Pavement

Effectiveness of Preventative Maintenance Strategies for AC Pavements Based on LTPP Distress Data

High-Tech Isolation
In the fast-paced world of telecommunications, the time to market is often the deciding factor in the success of an enterprise. With that thought in mind, AboveNet Communications, Inc.,...

Evaluation of SSET
The Sewer Scanner & Evaluation Technology
Prepared by CEITEC, a CERF innovation center serving the engineering and construction industries. This report describes an evaluation of Sewer Scanner...

Evaluation of the CON/SPAN Wingwall System
This evaluation was performed on CON/SPAN Wingwalls, precast concrete end walls for the CON/SPAN Bridge System developed, designed, and supplied by CON/SPAN Bridge System, Inc....

Long-Term Performance Program
Making Something of It: Papers from the International Contest on LTPP Data Analysis 1998-1999
Sponsored by the Highway Division of ASCE; Long-Term Performance Program of the Federal Highway Administration. This collection contains papers from...

Sprinkler Irrigation
In sprinkler irrigation, water is applied to the soil using a pressurized piping system with nozzles, jets, or perforated pipe that sprays the water into the air. These sprinkler devices...

The Shape of Things to Come
High-performance steel (HPS) offers improved toughness and durability for bridge construction. This article presents several innovative concepts for HPS structural systems—including I-girders...

Closing in on Approval
A lack of qualification criteria and design standards has hindered some engineers from using fiber-reinforced polymers to restore concrete structures. But several organizations—among them,...

 

 

 

 

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