A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Overpass bridge transformation and utilization method
The invention discloses an overpass bridge reconstruction and utilization method. The method comprises the following steps: 1, determining a bridge reconstruction scheme; 2, main tower construction; 3, jacking the original main beam; fourthly, the stay cables are tensioned; fifthly, the original bridge piers and the temporary supports are dismantled; and 6, newly building an under-bridge road. According to the situation that a traffic main line is additionally arranged on the lower portion of a bridge, the main tower is newly built, tensioning of the stay cables is conveniently achieved under the situation that main line traffic is not affected, the supporting effect of an original side span bridge abutment is replaced by cooperation of the cross beams and the stay cables, and loads are transmitted to the main tower through the stay cables; by erecting the detachable temporary support, the primary side span bridge abutment needing to be dismantled can be replaced conveniently, after the primary side span bridge abutment is dismantled, a road for vehicles to pass can be newly built below the area, resource consumption and environment burden caused by dismantling of the whole bridge are avoided, economic and social benefits are remarkable, and application and popularization value is high.
本发明公开了一种跨线桥梁改造利用方法，包括步骤：一、确定改建桥梁方案；二、主塔施工；三、顶升原主梁；四、张拉斜拉索；五、拆除原桥墩和临时支撑；六、新建桥下道路。本发明针对桥梁下部增设交通主线的情况，通过新建主塔，便于在不影响主线交通的情况下实现斜拉索张拉，通过采用横梁与斜拉索配合，代替原边跨桥台的支撑作用，利用斜拉索将荷载传递至主塔；通过搭设可拆卸的临时支撑，便于替代需要拆除的原边跨桥台，拆除原边跨桥台后，该区域下方可新建供车辆通行的道路，避免了拆除整座桥梁带来的资源消耗和环境负担，经济社会效益显著，推广应用价值大。
Overpass bridge transformation and utilization method
The invention discloses an overpass bridge reconstruction and utilization method. The method comprises the following steps: 1, determining a bridge reconstruction scheme; 2, main tower construction; 3, jacking the original main beam; fourthly, the stay cables are tensioned; fifthly, the original bridge piers and the temporary supports are dismantled; and 6, newly building an under-bridge road. According to the situation that a traffic main line is additionally arranged on the lower portion of a bridge, the main tower is newly built, tensioning of the stay cables is conveniently achieved under the situation that main line traffic is not affected, the supporting effect of an original side span bridge abutment is replaced by cooperation of the cross beams and the stay cables, and loads are transmitted to the main tower through the stay cables; by erecting the detachable temporary support, the primary side span bridge abutment needing to be dismantled can be replaced conveniently, after the primary side span bridge abutment is dismantled, a road for vehicles to pass can be newly built below the area, resource consumption and environment burden caused by dismantling of the whole bridge are avoided, economic and social benefits are remarkable, and application and popularization value is high.
本发明公开了一种跨线桥梁改造利用方法，包括步骤：一、确定改建桥梁方案；二、主塔施工；三、顶升原主梁；四、张拉斜拉索；五、拆除原桥墩和临时支撑；六、新建桥下道路。本发明针对桥梁下部增设交通主线的情况，通过新建主塔，便于在不影响主线交通的情况下实现斜拉索张拉，通过采用横梁与斜拉索配合，代替原边跨桥台的支撑作用，利用斜拉索将荷载传递至主塔；通过搭设可拆卸的临时支撑，便于替代需要拆除的原边跨桥台，拆除原边跨桥台后，该区域下方可新建供车辆通行的道路，避免了拆除整座桥梁带来的资源消耗和环境负担，经济社会效益显著，推广应用价值大。
Overpass bridge transformation and utilization method
一种跨线桥梁改造利用方法
ZHAO ZIQIAO (author) / LIU YANTAO (author) / LEI LANG (author) / MIAO JIANBAO (author) / ZHAO WENYU (author) / WANG JIANFEI (author) / LI JIANHUA (author) / LI YAO (author)
2024-02-27
Patent
Electronic Resource
Chinese
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