A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Seismic Retrofit of an Historic Steel Arch Bridge: Lessons Learned
This paper provides a summary of the challenges and lessons learned during the design and construction phases of the seismic retrofit of the North Queen Anne Drive Bridge, which is located just north of downtown Seattle, Washington. Some of these challenges included difficult site access, environmental concerns, minimizing the visual impact of the retrofit, as well as modifying an existing structure with limited as-built information. The lessons learned during this project may offer valuable insight for projects elsewhere with similar constraints. The North Queen Anne Drive Bridge, an historic steel structure built in 1935, is owned and maintained by the City of Seattle Department of Transportation (SDOT). It is comprised of seven spans, the main span of which is a 140-foot long three-pin steel arch (Figure 1). The six approach spans consist of steel girders and stringers supported by steel columns cross-braced in the transverse direction. This 327-foot long bridge crosses a steep ravine, at the base of which is a wetland. The structure is 45-feet wide with a 2000-foot horizontal curve.
Seismic Retrofit of an Historic Steel Arch Bridge: Lessons Learned
This paper provides a summary of the challenges and lessons learned during the design and construction phases of the seismic retrofit of the North Queen Anne Drive Bridge, which is located just north of downtown Seattle, Washington. Some of these challenges included difficult site access, environmental concerns, minimizing the visual impact of the retrofit, as well as modifying an existing structure with limited as-built information. The lessons learned during this project may offer valuable insight for projects elsewhere with similar constraints. The North Queen Anne Drive Bridge, an historic steel structure built in 1935, is owned and maintained by the City of Seattle Department of Transportation (SDOT). It is comprised of seven spans, the main span of which is a 140-foot long three-pin steel arch (Figure 1). The six approach spans consist of steel girders and stringers supported by steel columns cross-braced in the transverse direction. This 327-foot long bridge crosses a steep ravine, at the base of which is a wetland. The structure is 45-feet wide with a 2000-foot horizontal curve.
Seismic Retrofit of an Historic Steel Arch Bridge: Lessons Learned
Moffat, Barbara (author) / Caywood, Cory (author)
Structures Congress 2007 ; 2007 ; Long Beach, California, United States
2007-10-10
Conference paper
Electronic Resource
English
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