Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method of enlarging the space beneath a masonry arch bridge, and a masonry arch bridge
The space beneath a masonry arch bridge is enlarged by cutting the spandrel walls 4 that are at each end of the masonry arch 3 to form a movable portion 32, and lifting the portion to raise and then secure the masonry arch in an elevated position. No strengthening means may be needed; however the bridge may include strengthening such as tensioned tendons that apply a compressive force to the arch. A reinforced concrete saddle 20 may be applied to the upper surface of the arch. Devices such as jacks may also be used for strengthening, and may be located at the cuts through the masonry arch. The arch may be secured in the higher position by a wedge that is inserted into a gap formed after the movable portion is raised. The lifting force may be provided by tensile members connecting the arch to a support structure.
Method of enlarging the space beneath a masonry arch bridge, and a masonry arch bridge
The space beneath a masonry arch bridge is enlarged by cutting the spandrel walls 4 that are at each end of the masonry arch 3 to form a movable portion 32, and lifting the portion to raise and then secure the masonry arch in an elevated position. No strengthening means may be needed; however the bridge may include strengthening such as tensioned tendons that apply a compressive force to the arch. A reinforced concrete saddle 20 may be applied to the upper surface of the arch. Devices such as jacks may also be used for strengthening, and may be located at the cuts through the masonry arch. The arch may be secured in the higher position by a wedge that is inserted into a gap formed after the movable portion is raised. The lifting force may be provided by tensile members connecting the arch to a support structure.
Method of enlarging the space beneath a masonry arch bridge, and a masonry arch bridge
HARVEY WILLIAM JOHN (Autor:in) / BENNETT KEVIN JOHN (Autor:in)
09.12.2015
Patent
Elektronische Ressource
Englisch
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