A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Case History: Margaret McDermott Bridge over I-30
The Horseshoe project is a $818 million design-build project intended to reconstruct highway infrastructure through the middle of downtown Dallas and greatly improve traffic flow. A new signature bridge, the Margaret McDermott Bridge over I-30, is the centerpiece of this project. The bridge will provide separate eastbound and westbound pedestrian and bicycle access in and around downtown Dallas. Construction of the foundation for the bridge began in 2013 and included drilled shafts socketed into shale. Most notable were 48-in. diameter shafts installed on a 20 degree batter, using double walled sectional casing, oscillated down to bearing. These shafts were 19 to 25 m (63 to 83 ft) long and socketed approximately 8.5 m (28 ft) into sound and continuous shale. Installation of the battered shafts required special planning and unique field techniques to guarantee a suitable finished product. This case provides an important addition to the field data on installation of drilled shafts on a significant batter, a rarely used but attractive solution to a need for lateral load capacity, an increasingly critical requirement in seismically active zones.
Case History: Margaret McDermott Bridge over I-30
The Horseshoe project is a $818 million design-build project intended to reconstruct highway infrastructure through the middle of downtown Dallas and greatly improve traffic flow. A new signature bridge, the Margaret McDermott Bridge over I-30, is the centerpiece of this project. The bridge will provide separate eastbound and westbound pedestrian and bicycle access in and around downtown Dallas. Construction of the foundation for the bridge began in 2013 and included drilled shafts socketed into shale. Most notable were 48-in. diameter shafts installed on a 20 degree batter, using double walled sectional casing, oscillated down to bearing. These shafts were 19 to 25 m (63 to 83 ft) long and socketed approximately 8.5 m (28 ft) into sound and continuous shale. Installation of the battered shafts required special planning and unique field techniques to guarantee a suitable finished product. This case provides an important addition to the field data on installation of drilled shafts on a significant batter, a rarely used but attractive solution to a need for lateral load capacity, an increasingly critical requirement in seismically active zones.
Case History: Margaret McDermott Bridge over I-30
Walker, Bo (author) / Smith, Andrew (author)
IFCEE 2015 ; 2015 ; San Antonio, Texas
IFCEE 2015 ; 908-921
2015-03-17
Conference paper
Electronic Resource
English
CASE HISTORY: MARGARET MCDERMOTT BRIDGE OVER I-30
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