Construction method for steel-concrete mixed section of cable-stayed bridge

• Main Authors: GAO SHUOJIE, TIAN FEIHU, ZOU JIAGUANG, LYU CHAO, XU SHULIANG, GUO ZHIQI, ZHAO XIAODONG, HOU JIAN, LI GUOPING, HAN KAIKAI, XIE JUNHUA, DANG YAODONG, ZHANG JINWANG, DUAN CHANGXIN, LI SHENGHAN
• Format: Patent
• Language: Chinese; English
• Published: 04.04.2023
• Subjects: ASSEMBLY OF BRIDGES; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; OR VIADUCTS

The invention provides a construction method for a steel-concrete mixed section of a cable-stayed bridge, which is characterized by comprising the following steps of: pre-burying a thick steel plate for later welding of a stiff skeleton during construction of a mid-span No.15 beam section, meanwhile, modifying a cantilever bridge fabrication machine into a deck crane, moving the deck crane forwards and anchoring, and entering a steel-concrete combined area steel box beam hoisting state; the steel-concrete combined section I enters a preset position, a bridge deck crane vertical lifting system is used for lifting the steel beam to a design position, a No.15 beam section and the steel-concrete combined section I are fixed, middle span No.16-No.1 beam section concrete is poured, and side span No.16-1'and No.16-2 'beam sections are constructed; connection between the deck crane and the concrete combination section I is removed, middle span 16-2 beam section concrete is poured, a side span cast-in-place section 18