Bridge first span precast beam boundary beam of tunnel connection bridge and erecting method of bridge first span precast beam boundary beam

• Main Authors: XIAO LONGHE, ZHANG CAI, FENG LUSHUANG, CHEN ZHAOTAO, XIE SHIHUA, TAN GENG, WEI HONGFEI, ZHAO WENLONG, WU QUANZHI
• Format: Patent
• Language: Chinese; English
• Published: 22.03.2022
• Subjects: ASSEMBLY OF BRIDGES; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; OR VIADUCTS

The invention discloses a tunnel connection bridge first span precast beam boundary beam and an erecting method thereof.The tunnel connection bridge first span precast beam boundary beam comprises a cover beam body and a transverse displacement device, check blocks are arranged on the two sides of the top end of the cover beam body, a plurality of sets of padstones are arranged at the top end of the cover beam body, and the transverse displacement device is arranged on the cover beam body; a plastic film is flatly laid at the top end of the capping beam body and located on the sides, close to a tunnel portal, of the padstones, a concrete leveling layer is poured on the plastic film, an embedded PVC pipe is arranged in the capping beam body and located between every two adjacent padstones, a steel bar penetrates through the interior of each embedded PVC pipe, and the steel bar is connected with the steel bar. According to the tunnel connection bridge first span precast beam boundary beam and the erecting metho