Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Variable cross-section box girder bridge closure segment construction method
The invention belongs to the field of bridge engineering construction and particularly provides a variable cross-section box girder bridge closure segment construction method. The method comprises the following steps of side span closure segment formwork mounting, side span stiff skeleton welding, side span reinforcing steel bar machining and mounting, transverse and vertical side span prestressed tendon mounting, side span closure segment concrete pouring, side span closure segment prestressing tendon tensioning and pipeline grouting, midspan closure hanging basket moving and balance weight arranging, midspan closure segment pushing, midspan closure segment concrete pouring, midspan closure segment prestressing tendon tensioning and midspan closure segment formwork and support dismantling. According to the method, jacks are adopted for jacking beam ends, stiff skeletons are additionally arranged in beams, the tensioning procedures are reasonably designed, the bearing capacity of a closure segment is effectively guaranteed, the number of engineering accidents is reduced, the adverse social influence produced after the accidents is eliminated, and good social benefits are achieved.
Variable cross-section box girder bridge closure segment construction method
The invention belongs to the field of bridge engineering construction and particularly provides a variable cross-section box girder bridge closure segment construction method. The method comprises the following steps of side span closure segment formwork mounting, side span stiff skeleton welding, side span reinforcing steel bar machining and mounting, transverse and vertical side span prestressed tendon mounting, side span closure segment concrete pouring, side span closure segment prestressing tendon tensioning and pipeline grouting, midspan closure hanging basket moving and balance weight arranging, midspan closure segment pushing, midspan closure segment concrete pouring, midspan closure segment prestressing tendon tensioning and midspan closure segment formwork and support dismantling. According to the method, jacks are adopted for jacking beam ends, stiff skeletons are additionally arranged in beams, the tensioning procedures are reasonably designed, the bearing capacity of a closure segment is effectively guaranteed, the number of engineering accidents is reduced, the adverse social influence produced after the accidents is eliminated, and good social benefits are achieved.
Variable cross-section box girder bridge closure segment construction method
HUANG JIANDONG (Autor:in) / LIN XIAOXIONG (Autor:in) / LI CHANGJUN (Autor:in) / LIANG WEI (Autor:in) / QIU HONG (Autor:in)
11.11.2015
Patent
Elektronische Ressource
Englisch
IPC:
E01D
BRIDGES
,
Brücken
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