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A platform for research: civil engineering, architecture and urbanism
Construction method for erecting small-radius large-gradient prefabricated T-beam
The invention discloses a construction method for erecting a small-radius large-gradient prefabricated T-shaped beam. The technical problem that in the prior art, when a curve outer side edge beam is erected on a T-shaped beam with a small bridge curve radius and a large gradient, the T-shaped beam cannot be in place is solved. A bridge girder erection machine and a crane are combined for hoisting a small-radius large-gradient prefabricated T beam, a main bridge adopts the bridge girder erection machine for beam feeding and longitudinal moving, and a system is hoisted by the crane, horizontally rotated and transversely moved to a boundary beam position for beam falling; the main bridge is used as a transportation channel for erecting the T-shaped beam of the ramp bridge, and the T-shaped beam is erected through combined hoisting, horizontal rotation and unbalanced beam falling of two cranes. The method is scientific and reasonable in design, feasible to operate and convenient to construct, and has the characteristics of simple construction process, high universality of equipment, capability of effectively controlling the line type, good appearance quality, capability of effectively ensuring the process quality, safe and reliable construction, easiness in controlling the construction period, cost saving and the like.
本发明公开了小半径大坡度预制T梁架设施工方法，解决现有技术在对桥曲线半径小坡度较大T梁架设曲线外侧边梁时无法就位的技术问题。采用架桥机与吊车组合进行小半径大坡度预制T梁吊装，主线桥采用架桥机送梁纵移，体系转换由吊车起吊、水平旋转、横移至边梁位落梁；匝道桥T梁架设以主线桥作为运输通道，通过两台吊车组合起吊、水平旋转、不平衡落梁完成T梁架设。本发明设计科学合理、操作可行、施工方便，其具有施工工艺简单、机具设备通用性强、能有效控制线型、外观质量好、可有效保证过程质量、施工安全可靠、工期易控制、以及节约成本等特点。
Construction method for erecting small-radius large-gradient prefabricated T-beam
The invention discloses a construction method for erecting a small-radius large-gradient prefabricated T-shaped beam. The technical problem that in the prior art, when a curve outer side edge beam is erected on a T-shaped beam with a small bridge curve radius and a large gradient, the T-shaped beam cannot be in place is solved. A bridge girder erection machine and a crane are combined for hoisting a small-radius large-gradient prefabricated T beam, a main bridge adopts the bridge girder erection machine for beam feeding and longitudinal moving, and a system is hoisted by the crane, horizontally rotated and transversely moved to a boundary beam position for beam falling; the main bridge is used as a transportation channel for erecting the T-shaped beam of the ramp bridge, and the T-shaped beam is erected through combined hoisting, horizontal rotation and unbalanced beam falling of two cranes. The method is scientific and reasonable in design, feasible to operate and convenient to construct, and has the characteristics of simple construction process, high universality of equipment, capability of effectively controlling the line type, good appearance quality, capability of effectively ensuring the process quality, safe and reliable construction, easiness in controlling the construction period, cost saving and the like.
本发明公开了小半径大坡度预制T梁架设施工方法，解决现有技术在对桥曲线半径小坡度较大T梁架设曲线外侧边梁时无法就位的技术问题。采用架桥机与吊车组合进行小半径大坡度预制T梁吊装，主线桥采用架桥机送梁纵移，体系转换由吊车起吊、水平旋转、横移至边梁位落梁；匝道桥T梁架设以主线桥作为运输通道，通过两台吊车组合起吊、水平旋转、不平衡落梁完成T梁架设。本发明设计科学合理、操作可行、施工方便，其具有施工工艺简单、机具设备通用性强、能有效控制线型、外观质量好、可有效保证过程质量、施工安全可靠、工期易控制、以及节约成本等特点。
Construction method for erecting small-radius large-gradient prefabricated T-beam
小半径大坡度预制T梁架设施工方法
LIU JIAYIN (author) / WANG ZHIYONG (author) / ZHAO ZHI (author) / ZENG BOCHUAN (author) / TANG JIANHE (author) / DENG CUNJUN (author) / KANG JIAN (author) / YAN XIUPIN (author) / CAO HUOYONG (author) / CHEN XIAOHONG (author)
2021-07-23
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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