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A platform for research: civil engineering, architecture and urbanism
Large-span steel truss hoisting construction method
The invention discloses a large-span steel truss hoisting construction method. The method is characterized by comprising the following construction steps of large-span steel truss hoisting installation and large-span steel truss hoisting. The method comprises the following steps that S11, a steel truss is assembled on the projection ground under the design position of a steel corridor; S12, four lifting suspension points are arranged above the steel corridor, and each lifting suspension point is provided with a hydraulic lifter through a lifting support; S21, the hydraulic lifters are loaded to the steel truss to be 9.5-10 cm away from the ground in sequence by 20%, 40%, 60%, 80% and 100%, and stay for 12 hours; S22, the normal state is confirmed, officially lifting is carried out, and the lifting height of each lifting point is measured every 5 cm; and S23, the steel truss is lifted to the position 1 m away from the design position, and the lifting speed is slowed down to be lifted to the design position. The method has the beneficial effects that the whole structure of the steel truss is assembled on the ground, the assembling construction efficiency is high, the quality is easier to guarantee, meanwhile, the acceleration is small in the lifting process, and therefore almost no additional dynamic load is applied to the whole steel truss.
本发明公开了一种大跨度钢桁架吊装施工方法，其特征在于，包括以下施工步骤：大跨度钢桁架提升安装和大跨度钢桁架提升过程。步骤S11：在钢连廊的设计位置正下方投影地面拼装钢桁架；步骤S12：在钢连廊的上方设置4个提升吊点，每个提升吊点通过提升支架配置1台液压提升器步骤S21：液压提升器依序20%、40%、60%、80%、100%加载至钢桁架离地9.5‑10cm，停留12h；步骤S22：确认正常，正式提升；每间隔5cm测量其各吊点提升高度；步骤S23：将钢桁架提升至距离设计位置1m，放慢提升速度提升至设计位置。有益效果在于：钢桁架的整体结构在地面拼装，拼装施工效率高，且质量更容易保证，同时在提升过程中加速度小，因此对钢桁架整体几乎无附加动载荷。
Large-span steel truss hoisting construction method
The invention discloses a large-span steel truss hoisting construction method. The method is characterized by comprising the following construction steps of large-span steel truss hoisting installation and large-span steel truss hoisting. The method comprises the following steps that S11, a steel truss is assembled on the projection ground under the design position of a steel corridor; S12, four lifting suspension points are arranged above the steel corridor, and each lifting suspension point is provided with a hydraulic lifter through a lifting support; S21, the hydraulic lifters are loaded to the steel truss to be 9.5-10 cm away from the ground in sequence by 20%, 40%, 60%, 80% and 100%, and stay for 12 hours; S22, the normal state is confirmed, officially lifting is carried out, and the lifting height of each lifting point is measured every 5 cm; and S23, the steel truss is lifted to the position 1 m away from the design position, and the lifting speed is slowed down to be lifted to the design position. The method has the beneficial effects that the whole structure of the steel truss is assembled on the ground, the assembling construction efficiency is high, the quality is easier to guarantee, meanwhile, the acceleration is small in the lifting process, and therefore almost no additional dynamic load is applied to the whole steel truss.
本发明公开了一种大跨度钢桁架吊装施工方法，其特征在于，包括以下施工步骤：大跨度钢桁架提升安装和大跨度钢桁架提升过程。步骤S11：在钢连廊的设计位置正下方投影地面拼装钢桁架；步骤S12：在钢连廊的上方设置4个提升吊点，每个提升吊点通过提升支架配置1台液压提升器步骤S21：液压提升器依序20%、40%、60%、80%、100%加载至钢桁架离地9.5‑10cm，停留12h；步骤S22：确认正常，正式提升；每间隔5cm测量其各吊点提升高度；步骤S23：将钢桁架提升至距离设计位置1m，放慢提升速度提升至设计位置。有益效果在于：钢桁架的整体结构在地面拼装，拼装施工效率高，且质量更容易保证，同时在提升过程中加速度小，因此对钢桁架整体几乎无附加动载荷。
Large-span steel truss hoisting construction method
一种大跨度钢桁架吊装施工方法
ZHANG YONGWEI (author) / ZHANG TAO (author) / CHEN WENHUA (author) / LI SHUAILIN (author) / LIU WANGYUE (author)
2021-11-23
Patent
Electronic Resource
Chinese
IPC:
E04G
SCAFFOLDING
,
Baugerüste
Construction method for hoisting distorted large-span steel structure roof truss
| European Patent Office | 2023