Construction method of steel structure bridge with beam changed by machine

• Main Authors: LI MING, ZHU JIAPENG, LIU HAO, CAO WENWEN, SUN NAN, FENG GUANJIE, WANG XUEKUI, JIA YAGUANG, BAI LUHAN, LI JUNFANG, SHI MENGMENG, LU HANGLI, LI FEIRAN, YUAN BO
• Format: Patent
• Language: Chinese; English
• Published: 13.12.2022
• Subjects: ASSEMBLY OF BRIDGES; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; OR VIADUCTS

The invention discloses a machine-to-beam type steel structure bridge construction method which comprises the following steps: (1) constructing a bridge foundation pile and a bridge pier on site, and installing a bridge girder erection machine; (2) hoisting and erecting steel girders from the first span to the (N-2) th span through the bridge girder erection machine; (3) erecting a temporary bracket between piers of the (N-1) th span and the Nth span, according to a bridge design scheme, box girder sections obtained by splitting the supporting beams are divided into two rows and placed at corresponding positions of a temporary support, and transformation of'machine-to-beam 'is completed; (4) system transformation of'simple support-to-continuous' is carried out on the steel girder member obtained in the step (3); if the steel main beam is a steel-concrete composite beam, the bridge deck slab is installed, and the longitudinal and transverse wet joints of the bridge deck slab are poured; and (5) the temporary s