Truss enhanced bridge girder
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Dec 17, 2002
Grant Date -
N/A
app pub date -
Oct 12, 2000
filing date -
Feb 19, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A truss for distributing a maximum bending moment normally occurring at a midpoint region of a girder (430) includes a first truss segment member (505) having first and second ends, a second truss segment member (420) having first and second ends, a third truss segment member (510) having first and second ends, a fourth truss segment member (425) having first and second ends, and a fifth truss segment member (415) having first and second ends. The first end of the first truss segment member (505) is attached substantially perpendicular to the girder at a first location near the midpoint region of the girder and the second end of the second truss segment member (420) is attached to the second end of the first truss segment member (505). The first end of the third truss segment member (510) is attached substantially perpendicular to the girder (430) at a second location near the midpoint region of the girder. The first location is located between the second location and the first end of the girder. The first end of the fourth truss segment member (425) is attached at the midpoint region of the girder (430) and the second end of the fourth truss segment member (425) is attached to the second end of the third truss segment member (510). The first end of the fifth truss segment member (415) is attached to the second end of the first truss segment member (505) and the second end of the fifth truss segment member is attached to the second end of the third truss segment member (510). An upward force is applied to the second ends of the first and third truss segment members (505, 510) to distribute the maximum bending moment of the girder (430) toward the ends of the girder.
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