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A platform for research: civil engineering, architecture and urbanism
Large-span emergency bridge string extension and retraction system
The invention belongs to the field of emergency bridge erection, and particularly relates to a long-span emergency bridge string retracting and releasing system. Comprising a string system which is arranged on the two sides in a split mode and overlaid in a double-layer mode, and a plurality of servo jacking devices arranged between the string system and the bottom of a main beam. The string tensioning system is formed by splicing a plurality of string tensioning pulling plates; the upper end of each servo jacking device is rotationally connected with the bottom of the main beam, the lower end of each servo jacking device is rotationally connected with the string tensioning system, each servo jacking device is in a foldable double-rhombus shape, in the main beam pushing process, the servo jacking devices are in a folded state, the servo jacking devices and the string tensioning system are arranged at the bottom of the main beam, and after the main beam is pushed in place, the servo jacking devices are unfolded to be in a rhombus shape. And the main beam and the string tensioning pulling plates are jacked respectively, and after string tensioning anchoring nodes at the two ends of the string tensioning system and main bridge side bridge section anchoring points are anchored, pretension is formed in the string tensioning system, so that the erection of the large-span emergency bridge is realized. According to the invention, prestress application of the string system is completed rapidly and conveniently, and rapid erection of the large-span emergency bridge is realized.
本发明属于应急桥梁架设领域，具体涉及一种大跨度应急桥张弦收放系统。包括采用两侧分置双层叠加的张弦系统，设置在张弦系统和主梁底部之间的多个伺服顶升装置；张弦系统由多个张弦拉板拼接而成；每个伺服顶升装置上端和主梁底部转动连接，下端和张弦系统转动连接，每个伺服顶升装置呈可折叠的双菱形，在主梁推送的过程中，伺服顶升装置呈折叠状态和张弦系统均设置在主梁底部，主梁推送到位后，伺服顶升装置撑开呈菱形，对主梁和张弦拉板分别进行顶升，张弦系统两端张弦锚固节点和主桥边桥节锚固点锚固后张弦系统内形成预张力，实现大跨度应急桥的架设。本发明快速便捷的完成了张弦系统预应力施加，实现了大跨度应急桥的快速架设。
Large-span emergency bridge string extension and retraction system
The invention belongs to the field of emergency bridge erection, and particularly relates to a long-span emergency bridge string retracting and releasing system. Comprising a string system which is arranged on the two sides in a split mode and overlaid in a double-layer mode, and a plurality of servo jacking devices arranged between the string system and the bottom of a main beam. The string tensioning system is formed by splicing a plurality of string tensioning pulling plates; the upper end of each servo jacking device is rotationally connected with the bottom of the main beam, the lower end of each servo jacking device is rotationally connected with the string tensioning system, each servo jacking device is in a foldable double-rhombus shape, in the main beam pushing process, the servo jacking devices are in a folded state, the servo jacking devices and the string tensioning system are arranged at the bottom of the main beam, and after the main beam is pushed in place, the servo jacking devices are unfolded to be in a rhombus shape. And the main beam and the string tensioning pulling plates are jacked respectively, and after string tensioning anchoring nodes at the two ends of the string tensioning system and main bridge side bridge section anchoring points are anchored, pretension is formed in the string tensioning system, so that the erection of the large-span emergency bridge is realized. According to the invention, prestress application of the string system is completed rapidly and conveniently, and rapid erection of the large-span emergency bridge is realized.
本发明属于应急桥梁架设领域，具体涉及一种大跨度应急桥张弦收放系统。包括采用两侧分置双层叠加的张弦系统，设置在张弦系统和主梁底部之间的多个伺服顶升装置；张弦系统由多个张弦拉板拼接而成；每个伺服顶升装置上端和主梁底部转动连接，下端和张弦系统转动连接，每个伺服顶升装置呈可折叠的双菱形，在主梁推送的过程中，伺服顶升装置呈折叠状态和张弦系统均设置在主梁底部，主梁推送到位后，伺服顶升装置撑开呈菱形，对主梁和张弦拉板分别进行顶升，张弦系统两端张弦锚固节点和主桥边桥节锚固点锚固后张弦系统内形成预张力，实现大跨度应急桥的架设。本发明快速便捷的完成了张弦系统预应力施加，实现了大跨度应急桥的快速架设。
Large-span emergency bridge string extension and retraction system
一种大跨度应急桥张弦收放系统
ZHAO QILIN (author) / QU QUANLIANG (author) / ZHOU LIJUN (author) / LI FEI (author) / LI ZIHAN (author) / LU HUADONG (author)
2023-11-28
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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