Seismic Design of Highway Bridges: Recommended Specifications
Under the AASHTO-sponsored National Cooperative Highway Research Program (NCHRP), a joint venture of the Applied Technology Council and the Multidisciplinary Center for Earthquake Engineering...

A Framework for Performance-Based Seismic Design
The following probabilistic framework for seismic performance assessment is presented as an effective foundation for the development of performance-based guidelines. It suggests a generic...

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...

New Developments in the Field of Seismic Isolation
This paper will concentrate onwhat likely, is the most significant of these issues: changes in the mechanical properties ofseismic isolation and energy dissipation hardware as they are...

Performance of Masonry in Disasters: Lessons Learned and Research Needs Identified
This presentation described in this extended abstract is one of several in a panel discussion entitled Enhanced Research in Masonry. The objectives of the presentation are to discuss the...

Seismic Analysis and Retrofit of the Amoskeag Bridges
In 1983 AASHTO first offered the design guide for seismic analysis of bridges, which ultimately became a permanent part of the AASHTO Bridge Design Manual in 1990. Prior to this time,...

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.,...

Holding Steady
The San Diego�Coronado Bay Bridge is an unmistakable landmark that frames the skyline of downtown San Diego, providing a vital link between the mainland and the Coronado peninsula. The...

Concrete Delivers
The latest addition to the skyline of Shanghai, China, is a strikingly slender all-concrete 62-story office tower. It is the city's tallest all-concrete building, achieving...

Evaluation Findings for Seismic Energy Products, L.P. Elastromeric Isolation Bearing
Prepared by the Highway Innovative Technology Evaluation Center (HITEC), a CERF Service Center. This report presents the results of a detailed evaluation...

Safeguarding Bixby Bridge
The two-lane arch bridge over Bixby Creek�in Big Sur, California�reflects the Art Deco style popular in the early 1930s, when the crossing was built. Its slender deck and arch ribs appear...

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...

Beach Changes Triggered by Seaward Development of Towns, Expansion of Coastal Forest and Construction of Detached Breakwaters at a Pocket Beach
Beach changes triggered by seaward development of towns, expansion of coastal forests and construction of detached breakwaters at a pocket beach were analyzed, taking the Ariake-Ishihama...

Monitoring and Performance Analysis of Protection Works at Rosslare Strand
Post construction monitoring and performance analysis has become an important part of many major coastal protection projects. In the past such work was carried out very much on an ad-hoc...

Low Cost Sand Re-Nourishment to Combat Chronic Beach Erosion: Long Beach, California
The City of Long Beach has analyzed and attempted numerous methods of beach erosion control and mitigation along Peninsula Beach. With the exception of beach nourishment, nothing has proven...

The Sharon Escarpment, Israel: Management of a Backshore Cliff in a Densely Populated Environment
The Sharon Escarpment is a coastal backshore escarpment made of heterogeneous layered sandstone. This area is an increasingly exploited environmental resource. This paper defines the main...

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...

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...

Verdict Rendered
After the Grays Harbor County Courthouse in Montesano, Washington, was severely damaged by an earthquake in 1999, the surrounding community decided to preserve it. A design/build approach...

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...

 

 

 

 

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