Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for dismounting temporary supporting node of swivel bridge and lowering bridge
The invention discloses a swivel bridge temporary supporting node dismounting and beam falling method, and belongs to the technical field of swivel bridge building construction. The method comprises the steps of supporting node arrangement, supporting node dismantling sequence determination, partial supporting node dismantling, supporting node n-2 # supports, dismantling and beam falling at the n # supports, and finally stress conversion after rotation is completed. According to the method, the concrete steel pipe supports are symmetrically detached one by one from the midspan to the two ends, the supports are unloaded in a multi-point and graded mode, natural downwarping of the cantilever structure is completely completed, and the longitudinal anti-overturning stability of the cantilever structure in the unloading process is guaranteed; the beam falling mode is limited in the process of finally disassembling the n-2 # support and the n # support, the process of firstly exceeding the top by a certain height and then falling the beam by a certain height is alternately carried out to achieve final falling in place, easy cushion drawing is achieved during beam falling, the operation process is simple, effective and reliable, and the stability of system conversion is guaranteed.
本发明公开了一种转体桥梁临时支撑节点拆卸及落梁方法，属于转体桥梁建造施工技术领域。本方法步骤包括支撑节点布置，确定支撑节点拆除顺序，拆除部分支撑节点，支撑节点n‑2#支架、n#支架处的拆除及落梁，最后是完成转体后的受力转换。本发明混凝土钢管支架拆除由跨中向两端对称隔一拆一，实现多点、分级对支架进行卸载，使悬臂结构自然下挠全部发生完成，保证卸载过程中悬臂结构的纵向抗倾覆稳定性；在最后n‑2#支架和n#支架拆卸的过程中限定了落梁方式，先超顶一定高度后落梁一定高度交替进行实现最终下降到位，落梁时实现轻松抽垫，操作过程简单有效可靠，保证体系转换的稳定性。
Method for dismounting temporary supporting node of swivel bridge and lowering bridge
The invention discloses a swivel bridge temporary supporting node dismounting and beam falling method, and belongs to the technical field of swivel bridge building construction. The method comprises the steps of supporting node arrangement, supporting node dismantling sequence determination, partial supporting node dismantling, supporting node n-2 # supports, dismantling and beam falling at the n # supports, and finally stress conversion after rotation is completed. According to the method, the concrete steel pipe supports are symmetrically detached one by one from the midspan to the two ends, the supports are unloaded in a multi-point and graded mode, natural downwarping of the cantilever structure is completely completed, and the longitudinal anti-overturning stability of the cantilever structure in the unloading process is guaranteed; the beam falling mode is limited in the process of finally disassembling the n-2 # support and the n # support, the process of firstly exceeding the top by a certain height and then falling the beam by a certain height is alternately carried out to achieve final falling in place, easy cushion drawing is achieved during beam falling, the operation process is simple, effective and reliable, and the stability of system conversion is guaranteed.
本发明公开了一种转体桥梁临时支撑节点拆卸及落梁方法，属于转体桥梁建造施工技术领域。本方法步骤包括支撑节点布置，确定支撑节点拆除顺序，拆除部分支撑节点，支撑节点n‑2#支架、n#支架处的拆除及落梁，最后是完成转体后的受力转换。本发明混凝土钢管支架拆除由跨中向两端对称隔一拆一，实现多点、分级对支架进行卸载，使悬臂结构自然下挠全部发生完成，保证卸载过程中悬臂结构的纵向抗倾覆稳定性；在最后n‑2#支架和n#支架拆卸的过程中限定了落梁方式，先超顶一定高度后落梁一定高度交替进行实现最终下降到位，落梁时实现轻松抽垫，操作过程简单有效可靠，保证体系转换的稳定性。
Method for dismounting temporary supporting node of swivel bridge and lowering bridge
一种转体桥梁临时支撑节点拆卸及落梁方法
CHEN HUI ( Autor:in ) / ZHANG YUBAO ( Autor:in ) / PENG JIANGANG ( Autor:in ) / WANG YONG ( Autor:in ) / YANG XUEZHEN ( Autor:in ) / ZHAO SHIJIE ( Autor:in ) / CHO JUN-HO ( Autor:in ) / GUAN ZHIJIAN ( Autor:in ) / YUN LU ( Autor:in ) / ZHENG QIAN ( Autor:in ) ... [mehr]
25.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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