Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bridge deck pavement method
The invention discloses a bridge deck pavement method. A stud with hooks is arranged on a pretreated steel-box-girder bridge deck steel plate, the height between each hook and the bridge deck steel plate is distributed in catenary form along a cross-bridge, a prestressed steel wire passes through the hook, and the both wings of the bridge deck steel plate are subjected to pre-tensioned prestress application by an anchoring device; the prestressed steel wire draws the bridge deck steel plate, so that the bridge deck steel plate is arched up in the center line, and then produces prestressed deformation; and autoclaving-free high-strength and high-tenacity concrete is cast on the bridge deck steel plate subjected to prestress application, and then a waterproof bond stress absorbing layer and a modified asphalt SMA are paved on the autoclaving-free high-strength and high-tenacity concrete. A prestress is applied to a bridge deck concrete layer through a prestressed steel wire and by using a pre-tensioning method, so that an extruding prestress is generated at the top of the concrete layer, thereby effectively solving the problem that the concrete layer paved on a steel-structured bridge deck easily has cracks above a stiffening rib of the steel plate, reducing bridge deck diseases, and prolonging the service life of a bridge deck pavement layer.
Bridge deck pavement method
The invention discloses a bridge deck pavement method. A stud with hooks is arranged on a pretreated steel-box-girder bridge deck steel plate, the height between each hook and the bridge deck steel plate is distributed in catenary form along a cross-bridge, a prestressed steel wire passes through the hook, and the both wings of the bridge deck steel plate are subjected to pre-tensioned prestress application by an anchoring device; the prestressed steel wire draws the bridge deck steel plate, so that the bridge deck steel plate is arched up in the center line, and then produces prestressed deformation; and autoclaving-free high-strength and high-tenacity concrete is cast on the bridge deck steel plate subjected to prestress application, and then a waterproof bond stress absorbing layer and a modified asphalt SMA are paved on the autoclaving-free high-strength and high-tenacity concrete. A prestress is applied to a bridge deck concrete layer through a prestressed steel wire and by using a pre-tensioning method, so that an extruding prestress is generated at the top of the concrete layer, thereby effectively solving the problem that the concrete layer paved on a steel-structured bridge deck easily has cracks above a stiffening rib of the steel plate, reducing bridge deck diseases, and prolonging the service life of a bridge deck pavement layer.
Bridge deck pavement method
DING QINGJUN (Autor:in) / QIAO LIGE (Autor:in) / ZHAO MINGYU (Autor:in) / LIU XIAOQING (Autor:in) / XU BO (Autor:in) / JIANG LE (Autor:in) / DING QINGRONG (Autor:in) / FU JUN (Autor:in) / LIANG SHENGQUAN (Autor:in) / HUANG JIABIAO (Autor:in)
29.04.2015
Patent
Elektronische Ressource
Englisch
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