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A platform for research: civil engineering, architecture and urbanism
Concrete self-anchored suspension bridge dismantling construction method
The invention belongs to the technical field of suspension bridge dismantling, and particularly relates to a concrete self-anchored suspension bridge dismantling construction method. The concrete self-anchored suspension bridge is dismantled through the six steps of dismantling a bridge deck system and a bridge deck accessory structure, building a main bridge bottom support and installing a gantry crane, converting a structural system, dismantling a main cable, dismantling a main beam and dismantling a cable bent tower. According to the method, the optimal dismantling procedure is determined by utilizing a finite element analogue simulation method, the situation that the sling force is abnormal in the system conversion process is avoided, and the construction efficiency is improved under the condition that the safety state is ensured. The rope saw cutting technology is adopted for dismantling the main beam and the main tower, equipment is simple and safe, the construction operation speed is high, notches are straight and smooth, hoisting is convenient, noise is low, vibration, dust and waste gas pollution are avoided, and the requirement for environmental protection is met. In the whole process of dismantling the self-anchored suspension bridge, erecting and dismantling of a trestle and a catwalk are not needed, and the self-anchored suspension bridge is faster, more convenient and safer.
本发明属于悬索桥拆除技术领域，具体涉及一种混凝土自锚式悬索桥拆除施工方法。本发明通过桥面系及桥面附属结构拆除、搭建主桥梁底支架及龙门吊安装、结构体系转换、主缆拆除、主梁拆除和索塔拆除六个步骤，完成了混凝土自锚式悬索桥的拆除。本发明利用有限元仿真模拟的方法，确定最优的拆除工序，避免了在体系转换过程中出现吊索索力异常的情况，在确保安全状态下，提高了施工效率。本发明中主梁和主塔拆除均采用绳锯切割工艺，设备简单、安全、施工作业速度快，切口平直光滑，吊运方便、噪音低、无振动、无粉尘、无废气污染，符合环保要求。本发明在自锚式悬索桥拆除的整个过程中，不需要进行栈桥及猫道的架设和拆除，更加快捷、方便和安全。
Concrete self-anchored suspension bridge dismantling construction method
The invention belongs to the technical field of suspension bridge dismantling, and particularly relates to a concrete self-anchored suspension bridge dismantling construction method. The concrete self-anchored suspension bridge is dismantled through the six steps of dismantling a bridge deck system and a bridge deck accessory structure, building a main bridge bottom support and installing a gantry crane, converting a structural system, dismantling a main cable, dismantling a main beam and dismantling a cable bent tower. According to the method, the optimal dismantling procedure is determined by utilizing a finite element analogue simulation method, the situation that the sling force is abnormal in the system conversion process is avoided, and the construction efficiency is improved under the condition that the safety state is ensured. The rope saw cutting technology is adopted for dismantling the main beam and the main tower, equipment is simple and safe, the construction operation speed is high, notches are straight and smooth, hoisting is convenient, noise is low, vibration, dust and waste gas pollution are avoided, and the requirement for environmental protection is met. In the whole process of dismantling the self-anchored suspension bridge, erecting and dismantling of a trestle and a catwalk are not needed, and the self-anchored suspension bridge is faster, more convenient and safer.
本发明属于悬索桥拆除技术领域，具体涉及一种混凝土自锚式悬索桥拆除施工方法。本发明通过桥面系及桥面附属结构拆除、搭建主桥梁底支架及龙门吊安装、结构体系转换、主缆拆除、主梁拆除和索塔拆除六个步骤，完成了混凝土自锚式悬索桥的拆除。本发明利用有限元仿真模拟的方法，确定最优的拆除工序，避免了在体系转换过程中出现吊索索力异常的情况，在确保安全状态下，提高了施工效率。本发明中主梁和主塔拆除均采用绳锯切割工艺，设备简单、安全、施工作业速度快，切口平直光滑，吊运方便、噪音低、无振动、无粉尘、无废气污染，符合环保要求。本发明在自锚式悬索桥拆除的整个过程中，不需要进行栈桥及猫道的架设和拆除，更加快捷、方便和安全。
Concrete self-anchored suspension bridge dismantling construction method
一种混凝土自锚式悬索桥拆除施工方法
YUAN HAOYUN (author) / XIAN JIANPING (author) / MA JIANYONG (author) / SUN PENG (author) / SU YANG (author) / LEI YU (author) / XIAO TIANBAO (author) / WANG HAO (author)
2024-07-26
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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