Keeping It Together
A new framing system for precast concrete columns and beams will allow tall buildings to withstand large earthquakes without damage to the structural integrity of the building. By using...

Box Girder Balancing Act
On November 18, 1999, cranes lowered into place the last of 202 precast concrete segments that form the main span of the new Sagadahoc Bridge, a $46.6 million crossing that boasts the...

Sum of the Parts
As with all of the bay bridges that serve as life lines to the San Francisco peninsula, the 32-year-old San Mateo Bridge needs strengthening to withstand a maximum credible earthquake...

Above Them All
The design for what would be the next world's tallest building relies on a 1,550 ft (472 m) high concrete core that will give occupants of the top floors of the building unimpeded...

Scenic-Bridge Strengthening (Available in Structural Engineering Special Issue only)
Built in 1937, California's Big Creek Bridge—a double-arch crossing with half-arch side spans—was due for a seismic retrofit. Challenged by the structure's unique...

Branching Out (Available in Structural Engineering Special Issue only)
The Cologne/Bonn Airport in Germany is currently undergoing its biggest construction project to date: a $200 million, five-story addition. Close and productive collaboration between the...

Control of Wind Response of the Trump World Tower
The Trump World Tower is a luxury residential building located on 1st Ave. and 48th St. in New York City,...

Design of Structure and Damping System to Control Motions of the Park Tower, Chicago
Park Tower, a 67 story condominium/hotel project currently under construction on the Magnificent Mile, Chicago, IL, will be the first building in North America in recent times that utilizes...

Innovative Solutions to Improve the Transportation System in Los Angeles County
Providing bus and rail service to over one million boardings each day is not an easy task, yet it is accomplished each day in Los Angeles County (County). In fact, Los Angeles is one of...

Inside Job
River Mill Dam is a large Ambursen (buttress type) dam constructed in 1911 on the Clackamas River in Oregon. The preliminary and final design phase of the seismic upgrade project coincided...

Added Protection
The U.S. Bureau of Reclamation is modifying the 335 ft (102 m) high Casitas Dam in Ventura County, California, to withstand a magnitude 6.9 earthquake. The modification includes strengthening...

Testing the Load (Available in Geoenvironmental Engineering Special Issue only)
The Pittsburgh District of the U.S. Army Corps of Engineers recently began construction of a new gated dam to replace a nearly 100-year-old concrete fixed-crest dam on the Monongahela...

Wireless Warnings
Formwork failures cause dozens of construction-related deaths per year, but most can be avoided by adequate monitoring. The problem is, most monitors must be hard-wired to a computer on...

Towers in Motion (available in Structural Engineering Special Section only)
Undersea towers are typically designed to rigidly resist the forces of water and wind. But one type of tower is designed to be flexible and, rather than rely on its platform strength to...

The Determination of Soil Strength for a Stability Analysis

Replacing the East Bay Bridge
The seismically vulnerable East Span of the San Francisco-Oakland Bay Bridge will be replaced with a dual eastbound and westbound, 3.6-km-long structure. The cost of the replacement bridge...

Building Code Requirements for Masonry Structures (ACI 530-99/ ASCE 5-99/TMS 402-99), Specification for Masonry Structures (ACI 530.1-99/ ASCE 6-99/TMS 602-99), Commentary on Building Code Requirements for Masonry Structures, Commentary on Specification for Masonry Structures
Building Code Requirements for Masonry Structures (ACI 530-99/ASCE 5-99/TMS 402-99), Specification for Masonry Structures (ACI 530.1-99/ASCE 6-99/TMS 602-99), Commentary on Building Code...

Rapid Expansion
Dallas Area Rapid Transit (DART) is undertaking an ambitious light-rail expansion program. It already operates a 20 mi (32 km) light-rail starter system in the city of Dallas. Under construction...

Safeguarding Los Alamos
A forest fire that burned 48,000 ac (19,500 ha) around the Los Alamos National Laboratory, in New Mexico, in May 2000, created another problem for one of the nation's most...

The Viable Alternative
The Benicia-Martinez Bridge is a high-level, welded deck truss bridge that carries Interstate 680 over the eastern end of the Carquinez Strait near San Francisco. To bring the bridge into...

 

 

 

 

Return to search