Lateral Loading & Seismic Response of CIDH Pile Supported Bridge Structures

Jet Grout Foundation for Rail Road Bridge

Rock Foundations for Route 33 Bridge over the Lehigh River

Use of Engineering Geophysics to Investigate a Site for a Bridge Foundation

Ground Improvement Feasibility Reports for Large Highway Projects: A Case Study of the Woodrow Wilson Bridge Replacement Project

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...

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,...

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...

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...

Cross-Frame and Diaphragm Behavior in Skewed Bridges
The author examines the existing specifications and guidance for bracing provisions by AASHTO, AISC, and TxDot, and the need for developing bracing requirements....

Maintenance of Diaphragm-Girder Connections
Fatigue cracking at diaphragm-girder connections and at similar connections of cross-frames and floorbeams have been common in steel highway bridges for the past 20 or 30 years. Fatigue...

High Performance Dampers for Bridges
A multi-disciplinary research study investigates the use of shape memory alloys as seismic dampers in bridges. Shape memory alloys are a class of alloys that display several unique characteristics,...

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,...

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...

Phase II Evaluation Findings
The Segmental Concrete Channel Bridge System
Prepared by the Highway Innovative Technology Evaluation Center (HITEC), a CERF Innovation Center. This report represents the second component of the...

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...

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...

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...

Protecting Your Work: Balancing the Competing Interests of Ownership
Your firm has invested days, months—perhaps even years—in its latest project. Your staff have poured their thoughts, ideas, and insights into the creation of a bridge, building, overpass,...

 

 

 

 

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