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A platform for research: civil engineering, architecture and urbanism
Large-span concrete-filled steel tube tied bar arch bridge construction method
The invention discloses a large-span concrete-filled steel tube tied bar arch bridge construction method and relates to a concrete-filled steel tube tied bar arch bridge construction method, thereby solving problems of long bracket occupation time and the like caused by the existing pre-built bracket assembling method. An arch springing and a continuous beam block 0 are constructed together, and the 2/3 of the length of an arch rib of a section 1 is pre-buried in the arch springing; concrete is poured into a first-section arch rib steel tube; and a first arch rib is firmly welded to a temporary support. A bridge deck girder is constructed and a lower anchor box is pre-buried at a corresponding position of a suspender; and construction from the inside to the two ends is simultaneously carried out according to the sequence of erecting a next support and installing a next section of arch rib. For a closure section, the arc rib on the right side of the closure section is closed and then the arc rib on the left side of the closure section is closed and temporary fixation is performed. The seams between the adjacent sections of arch ribs are welded and fixed; arch rib concrete pouring iscarried out; the support is removed; the suspender is mounted; the suspender is expanded; and steel structure finish paint coating is carried out. The method has the advantages of high construction speed, support proceeding along with the installation progress and sufficient on-bridge operation space.
大跨度钢管混凝土系杆拱桥施工方法涉及钢管混凝土系杆拱桥的施工方法。主要是为解决目前的预搭支架拼装法造成支架占用时间长等问题而发明的。拱脚与连续梁0号块一起施工，将1号节段拱肋的2/3长度预埋在拱脚内；将1号节段拱肋钢管中灌注混凝土，将1号拱肋与临时支架焊接牢固。桥面主梁施工，在吊杆相应位置预埋下锚箱；按照搭设下一个支架、安装下一个节段拱肋的顺序从两端向内同时施工。合龙段安装按照先合合拢段右侧拱肋，再合合拢段左侧拱肋的顺序进行，并临时固定。将相邻节段拱肋间接缝焊接固定；拱肋混凝土灌注；拆除支架；吊杆安装；吊杆张拉；钢结构面漆涂装。优点是施工速度快，支架随安装进度进行，桥上操作空间充足。
Large-span concrete-filled steel tube tied bar arch bridge construction method
The invention discloses a large-span concrete-filled steel tube tied bar arch bridge construction method and relates to a concrete-filled steel tube tied bar arch bridge construction method, thereby solving problems of long bracket occupation time and the like caused by the existing pre-built bracket assembling method. An arch springing and a continuous beam block 0 are constructed together, and the 2/3 of the length of an arch rib of a section 1 is pre-buried in the arch springing; concrete is poured into a first-section arch rib steel tube; and a first arch rib is firmly welded to a temporary support. A bridge deck girder is constructed and a lower anchor box is pre-buried at a corresponding position of a suspender; and construction from the inside to the two ends is simultaneously carried out according to the sequence of erecting a next support and installing a next section of arch rib. For a closure section, the arc rib on the right side of the closure section is closed and then the arc rib on the left side of the closure section is closed and temporary fixation is performed. The seams between the adjacent sections of arch ribs are welded and fixed; arch rib concrete pouring iscarried out; the support is removed; the suspender is mounted; the suspender is expanded; and steel structure finish paint coating is carried out. The method has the advantages of high construction speed, support proceeding along with the installation progress and sufficient on-bridge operation space.
大跨度钢管混凝土系杆拱桥施工方法涉及钢管混凝土系杆拱桥的施工方法。主要是为解决目前的预搭支架拼装法造成支架占用时间长等问题而发明的。拱脚与连续梁0号块一起施工，将1号节段拱肋的2/3长度预埋在拱脚内；将1号节段拱肋钢管中灌注混凝土，将1号拱肋与临时支架焊接牢固。桥面主梁施工，在吊杆相应位置预埋下锚箱；按照搭设下一个支架、安装下一个节段拱肋的顺序从两端向内同时施工。合龙段安装按照先合合拢段右侧拱肋，再合合拢段左侧拱肋的顺序进行，并临时固定。将相邻节段拱肋间接缝焊接固定；拱肋混凝土灌注；拆除支架；吊杆安装；吊杆张拉；钢结构面漆涂装。优点是施工速度快，支架随安装进度进行，桥上操作空间充足。
Large-span concrete-filled steel tube tied bar arch bridge construction method
大跨度钢管混凝土系杆拱桥施工方法
ZHANG XINGCHUN (author) / ZHOU WEIXIA (author) / HU KEHUI (author) / LIU CHANGWEI (author) / XU AIJUN (author) / YANG YULIN (author) / RUAN XIANG (author) / SUN WEI (author) / WANG QUAN (author) / YU YANG (author)
2020-04-17
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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