hinged arch foot
An arch frame and hinged technology, which is applied in the construction field of reinforced concrete arch bridges, can solve problems such as easy damage to the foundation and tension on the rods, and achieve the effects of shortening the construction period, reducing requirements, and wide applicability
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[0021] The specific embodiments of the present invention will be described in detail below in conjunction with the technical solution and the drawings.
[0022] Design parameters: span 150m, rise-span ratio of 1:5, arch axis coefficient of 1.756, single-box double-chamber section, section height of 2.2m, arch ring width of 7.2m, four bridges, load class I highway.
[0023] A steel pipe filled with concrete is prefabricated in the factory, and then the number of arch frames is determined according to the width of the arch bridge, and the corresponding position is welded with triangular steel plates; the steel pipe is transported to the construction site, and after pouring the arch seat, a curved steel plate is installed , Apply a layer of oil, and then send the steel pipe into the arc steel plate; then hoist the subsequent arch section to the span with a cable crane and other lifting equipment to complete the connection of the perforated steel plate with the upper and lower chords; r...
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