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A platform for research: civil engineering, architecture and urbanism
Bidirectional incremental launching construction method for bidirectional longitudinal slope complex vertical curve bridge
The invention relates to a bidirectional pushing construction method for a bidirectional longitudinal slope complex vertical curve bridge, which comprises the following specific steps of: dividing a main beam into a left main beam and a right main beam, arranging a splicing bracket and pushing piers in a steel structure splicing area, arranging the pushing piers in water, and arranging walking type pushing jacks and steel bearing beams on the pushing piers and a bridge abutment; the left main beam and the right main beam are spliced, the spliced left main beam and right main beam are rotated by a certain angle with the closure end as a rotation point, the left main beam and right main beam are located at the horizontal position, and a guide beam is welded; pushing to a specified position; after the left main beam and the right main beam are pushed to pushing piers in water, the guide beams are dismantled, and the line shapes of the main beams are adjusted; closing the midspan of the left main beam and the midspan of the right main beam, and falling the beams. The pushing construction of the bidirectional large-longitudinal-slope complex vertical curve bridge is converted into the horizontal pushing construction of two sections of simple bridges, the pushing process is greatly simplified, the cushion block adjusting workload of each pushing pier is reduced, operation is easy and safe, the procedure is simple and clear, and remarkable economic benefits are achieved.
本发明是一种双向纵坡复杂竖曲线桥梁双向顶推施工方法，具体步骤为：将主梁分为左主梁和右主梁，在钢结构拼装区域布置拼装支架和顶推墩，同时布置水中的顶推墩，在顶推墩、桥台上布置步履式顶推千斤顶和钢垫梁；左主梁、右主梁拼装，将拼装好的左主梁、右主梁均以合龙端为旋转点旋转一定角度，使左主梁、右主梁处于水平位置，焊接导梁；顶推至指定位置；在左主梁、右主梁顶推至水中的顶推墩上后，拆除导梁，调节主梁的线形；将左主梁、右主梁跨中合龙，落梁。本发明将双向大纵坡复杂竖曲线桥梁的顶推施工转化为两段简单的桥梁水平顶推施工，顶推过程大大简化，减少了每个顶推墩的垫块调解工作量，操作简单、安全，工序简明，具有显著的经济效益。
Bidirectional incremental launching construction method for bidirectional longitudinal slope complex vertical curve bridge
The invention relates to a bidirectional pushing construction method for a bidirectional longitudinal slope complex vertical curve bridge, which comprises the following specific steps of: dividing a main beam into a left main beam and a right main beam, arranging a splicing bracket and pushing piers in a steel structure splicing area, arranging the pushing piers in water, and arranging walking type pushing jacks and steel bearing beams on the pushing piers and a bridge abutment; the left main beam and the right main beam are spliced, the spliced left main beam and right main beam are rotated by a certain angle with the closure end as a rotation point, the left main beam and right main beam are located at the horizontal position, and a guide beam is welded; pushing to a specified position; after the left main beam and the right main beam are pushed to pushing piers in water, the guide beams are dismantled, and the line shapes of the main beams are adjusted; closing the midspan of the left main beam and the midspan of the right main beam, and falling the beams. The pushing construction of the bidirectional large-longitudinal-slope complex vertical curve bridge is converted into the horizontal pushing construction of two sections of simple bridges, the pushing process is greatly simplified, the cushion block adjusting workload of each pushing pier is reduced, operation is easy and safe, the procedure is simple and clear, and remarkable economic benefits are achieved.
本发明是一种双向纵坡复杂竖曲线桥梁双向顶推施工方法，具体步骤为：将主梁分为左主梁和右主梁，在钢结构拼装区域布置拼装支架和顶推墩，同时布置水中的顶推墩，在顶推墩、桥台上布置步履式顶推千斤顶和钢垫梁；左主梁、右主梁拼装，将拼装好的左主梁、右主梁均以合龙端为旋转点旋转一定角度，使左主梁、右主梁处于水平位置，焊接导梁；顶推至指定位置；在左主梁、右主梁顶推至水中的顶推墩上后，拆除导梁，调节主梁的线形；将左主梁、右主梁跨中合龙，落梁。本发明将双向大纵坡复杂竖曲线桥梁的顶推施工转化为两段简单的桥梁水平顶推施工，顶推过程大大简化，减少了每个顶推墩的垫块调解工作量，操作简单、安全，工序简明，具有显著的经济效益。
Bidirectional incremental launching construction method for bidirectional longitudinal slope complex vertical curve bridge
一种双向纵坡复杂竖曲线桥梁双向顶推施工方法
ZHAO XU (author) / ZHOU JUNLONG (author) / XIE PENGLIN (author) / SUN JIAN (author) / LI XIAOPENG (author) / QIANG WEILIANG (author) / LI XIAOLEI (author) / GENG WENBIN (author) / BAI WANSHUAI (author)
2023-05-23
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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