A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Segmental beam installation construction method
The invention belongs to the technical field of bridge construction, and particularly relates to a segmental beam installation construction method which mainly comprises the following steps: S1, firstly completing construction of a lower structure pile foundation and a pier body; the front supporting leg temporary supporting bracket and the middle supporting leg temporary supporting bracket are pre-buried in front of the pier body needing to be supported by the front supporting leg, so that the design requirement for erecting the pier top 0 # block firstly is met, and the front supporting leg of the bridge girder erection machine does not need to be heightened and modified; meanwhile, by means of the method that side span temporary prestress and temporary positioning measures are added, side span folding bundles are tensioned in advance to complete side span first folding, an on-bridge girder transporting channel at the tail of the bridge girder erection machine is opened, on-bridge girder transporting is conducted through an erected span, and it is avoided that under-bridge girder transporting channels are built at high cost; and in addition, through the anti-falling net, the safety of installing the temporary supporting bracket by the worker can be improved, the temperature of the working environment for installing the operation platform can be reduced, and the comfort level, convenience and efficiency of installing the temporary supporting bracket by the worker are improved.
本发明属于桥梁施工技术领域，尤其是涉及一种节段梁安装施工方法，主要包括以下步骤：S1，首先完成下部结构桩基础和墩身施工。本发明采用在前支腿需支撑的墩身前方预埋前支腿临时支撑牛腿和中支腿临时支撑牛腿，以满足先架设墩顶0#块的设计要求，无需对架桥机前支腿进行加高和改装；同时通过增加边跨临时预应力和临时定位措施，提前张拉边跨合拢束而完成边跨先合拢的方法，打通架桥机尾部的桥上运梁通道，以实现通过已架设跨进行桥上运梁而避免桥下投入高成本修筑运梁通道，而且通过防掉网能够提高工作人员安装临时支撑牛腿的安全性，以及能够降低安装操作平台作业环境的温度，提高工作人员安装临时支撑牛腿的舒适度、便捷性和效率。
Segmental beam installation construction method
The invention belongs to the technical field of bridge construction, and particularly relates to a segmental beam installation construction method which mainly comprises the following steps: S1, firstly completing construction of a lower structure pile foundation and a pier body; the front supporting leg temporary supporting bracket and the middle supporting leg temporary supporting bracket are pre-buried in front of the pier body needing to be supported by the front supporting leg, so that the design requirement for erecting the pier top 0 # block firstly is met, and the front supporting leg of the bridge girder erection machine does not need to be heightened and modified; meanwhile, by means of the method that side span temporary prestress and temporary positioning measures are added, side span folding bundles are tensioned in advance to complete side span first folding, an on-bridge girder transporting channel at the tail of the bridge girder erection machine is opened, on-bridge girder transporting is conducted through an erected span, and it is avoided that under-bridge girder transporting channels are built at high cost; and in addition, through the anti-falling net, the safety of installing the temporary supporting bracket by the worker can be improved, the temperature of the working environment for installing the operation platform can be reduced, and the comfort level, convenience and efficiency of installing the temporary supporting bracket by the worker are improved.
本发明属于桥梁施工技术领域，尤其是涉及一种节段梁安装施工方法，主要包括以下步骤：S1，首先完成下部结构桩基础和墩身施工。本发明采用在前支腿需支撑的墩身前方预埋前支腿临时支撑牛腿和中支腿临时支撑牛腿，以满足先架设墩顶0#块的设计要求，无需对架桥机前支腿进行加高和改装；同时通过增加边跨临时预应力和临时定位措施，提前张拉边跨合拢束而完成边跨先合拢的方法，打通架桥机尾部的桥上运梁通道，以实现通过已架设跨进行桥上运梁而避免桥下投入高成本修筑运梁通道，而且通过防掉网能够提高工作人员安装临时支撑牛腿的安全性，以及能够降低安装操作平台作业环境的温度，提高工作人员安装临时支撑牛腿的舒适度、便捷性和效率。
Segmental beam installation construction method
一种节段梁安装施工方法
ZHANG QIDONG (author) / QI XINQUAN (author) / ZHAO ZHONGFENG (author) / LIU JUNHONG (author) / CAO PENG (author)
2022-12-20
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
Segmental beam construction positioning device and segmental beam construction method
| European Patent Office | 2020