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A platform for research: civil engineering, architecture and urbanism
Variable cross-section bridge incremental launching construction device and construction method
The invention provides a variable cross-section bridge incremental launching construction device and a construction method, the incremental launching construction device comprises an incremental launching device, a leveling structure and a guide beam and is further provided with a plurality of temporary piers, the incremental launching device is arranged on the temporary piers, the leveling structure is arranged at the bottom of an arc-shaped variable cross-section bridge, and the lower surface of the leveling structure is on the same horizontal plane. Different from a traditional incremental launching method, a leveling structure needs to be arranged at the bottom of the bridge for incremental launching of the variable-cross-section bridge, and then incremental launching is conducted. According to the scheme, pushing is carried out from the two banks to the middle, folding is carried out at the midspan position, vertical adjustment of up-down displacement is carried out through the jack, and therefore linear smoothness is guaranteed. And after the bridge body is folded, the leveling structure is dismantled.
本发明提供一种变截面桥梁顶推施工装置及施工方法，顶推施工装置包括顶推装置、找平结构和导梁，还设有多个临时墩，顶推装置设置临时墩上，找平结构设置在弧形的变截面桥梁底部，且找平结构下表面在同一水平面上。区别于传统的顶推法，变截面桥梁的顶推需要在桥底设置一个找平结构，然后再进行顶推。本次方案，由两岸向中间进行顶推，在跨中处进行合拢，利用千斤顶进行上下位移的竖向调整，从而保证线性的流畅。在桥体合拢完成之后，将找平结构进行拆除。
Variable cross-section bridge incremental launching construction device and construction method
The invention provides a variable cross-section bridge incremental launching construction device and a construction method, the incremental launching construction device comprises an incremental launching device, a leveling structure and a guide beam and is further provided with a plurality of temporary piers, the incremental launching device is arranged on the temporary piers, the leveling structure is arranged at the bottom of an arc-shaped variable cross-section bridge, and the lower surface of the leveling structure is on the same horizontal plane. Different from a traditional incremental launching method, a leveling structure needs to be arranged at the bottom of the bridge for incremental launching of the variable-cross-section bridge, and then incremental launching is conducted. According to the scheme, pushing is carried out from the two banks to the middle, folding is carried out at the midspan position, vertical adjustment of up-down displacement is carried out through the jack, and therefore linear smoothness is guaranteed. And after the bridge body is folded, the leveling structure is dismantled.
本发明提供一种变截面桥梁顶推施工装置及施工方法，顶推施工装置包括顶推装置、找平结构和导梁，还设有多个临时墩，顶推装置设置临时墩上，找平结构设置在弧形的变截面桥梁底部，且找平结构下表面在同一水平面上。区别于传统的顶推法，变截面桥梁的顶推需要在桥底设置一个找平结构，然后再进行顶推。本次方案，由两岸向中间进行顶推，在跨中处进行合拢，利用千斤顶进行上下位移的竖向调整，从而保证线性的流畅。在桥体合拢完成之后，将找平结构进行拆除。
Variable cross-section bridge incremental launching construction device and construction method
变截面桥梁顶推施工装置及施工方法
MA YONG (author) / ZHANG SHIKUI (author) / WANG HANLIN (author) / FENG XIAOLONG (author) / CHEN BAITING (author) / WANG JUNQI (author) / ZHAO CHENG (author) / KE SUOAN (author) / LIANG BO (author) / MA LIANMING (author)
2024-07-05
Patent
Electronic Resource
Chinese
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