A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Drawing instrument with grading tensioning function and grading tensioning method
The invention discloses a staged tensioning drawing instrument which comprises a pressurizing device, a shunting device and a tensioning device, one end of the shunting device is connected with the pressurizing device, and the other end of the shunting device is connected with the tensioning device; the tensioning device comprises a large oil cylinder and a tensioning bin. More than two tensioning bins are arranged in the large oil cylinder; the oil cylinder of each tensioning bin is communicated with the large oil cylinder through an oil inlet valve, and the groove of each tensioning bin is communicated with the flow dividing device. An anchor plate and a lower limiting plate are sequentially arranged at the lower end of each tensioning bin from bottom to top. An upper limiting plate is arranged at the upper end of each tensioning bin, and the upper limiting plates are connected with the sliding blocks of the tensioning bins; the diameters of the through holes in the anchor plate, the lower limiting plate and the upper limiting plate are the same; and buckle structures are arranged at the through holes of the anchor plate and the upper limiting plate. The invention further provides a grading tensioning method. According to the tensioning device, steel strands with different tensioning forces can be tensioned step by step and then synchronously tensioned to the same tensioning force, and the phenomenon of rollback cannot occur after tensioning is completed.
本发明公开了一种分级张拉的拉拔仪，其包括加压装置、分流装置和张拉装置，分流装置的一端与加压装置连接，另一端与张拉装置连接；张拉装置包括大油缸、张拉仓；张拉仓有两个以上，置于大油缸内；每个张拉仓的油缸通过进油阀门与大油缸相连通，每个张拉仓的凹槽与分流装置相连通；每个张拉仓的下端从下往上依次设有锚板、下限位板；每个张拉仓的上端设有上限位板，上限位板与张拉仓的滑块连接；锚板、下限位板、上限位板上的通孔的直径相同；锚板和上限位板的通孔处设有卡扣结构。本发明还提供一种分级张拉方法。本发明能够对不同张拉力的钢绞线实现分别逐步张拉后再同步张拉到同一张拉力，且在张拉完成后不会出现回退现象。
Drawing instrument with grading tensioning function and grading tensioning method
The invention discloses a staged tensioning drawing instrument which comprises a pressurizing device, a shunting device and a tensioning device, one end of the shunting device is connected with the pressurizing device, and the other end of the shunting device is connected with the tensioning device; the tensioning device comprises a large oil cylinder and a tensioning bin. More than two tensioning bins are arranged in the large oil cylinder; the oil cylinder of each tensioning bin is communicated with the large oil cylinder through an oil inlet valve, and the groove of each tensioning bin is communicated with the flow dividing device. An anchor plate and a lower limiting plate are sequentially arranged at the lower end of each tensioning bin from bottom to top. An upper limiting plate is arranged at the upper end of each tensioning bin, and the upper limiting plates are connected with the sliding blocks of the tensioning bins; the diameters of the through holes in the anchor plate, the lower limiting plate and the upper limiting plate are the same; and buckle structures are arranged at the through holes of the anchor plate and the upper limiting plate. The invention further provides a grading tensioning method. According to the tensioning device, steel strands with different tensioning forces can be tensioned step by step and then synchronously tensioned to the same tensioning force, and the phenomenon of rollback cannot occur after tensioning is completed.
本发明公开了一种分级张拉的拉拔仪，其包括加压装置、分流装置和张拉装置，分流装置的一端与加压装置连接，另一端与张拉装置连接；张拉装置包括大油缸、张拉仓；张拉仓有两个以上，置于大油缸内；每个张拉仓的油缸通过进油阀门与大油缸相连通，每个张拉仓的凹槽与分流装置相连通；每个张拉仓的下端从下往上依次设有锚板、下限位板；每个张拉仓的上端设有上限位板，上限位板与张拉仓的滑块连接；锚板、下限位板、上限位板上的通孔的直径相同；锚板和上限位板的通孔处设有卡扣结构。本发明还提供一种分级张拉方法。本发明能够对不同张拉力的钢绞线实现分别逐步张拉后再同步张拉到同一张拉力，且在张拉完成后不会出现回退现象。
Drawing instrument with grading tensioning function and grading tensioning method
一种分级张拉的拉拔仪及分级张拉方法
WANG ZHIDE (author) / GAN WANWEI (author) / LIU QI (author) / DONG SHENGFANG (author) / WU HAIGANG (author) / LI GEN (author) / LI JIE (author) / SI YINGYING (author)
2022-07-29
Patent
Electronic Resource
Chinese
Prestress detection method and non-grading rapid continuous tensioning method and system
| European Patent Office | 2022
Stay cable grading asymmetric tensioning method for large-span cable-stayed bridge
| European Patent Office | 2023
| European Patent Office | 2021
Material conveying system with automatic tensioning function, tensioning method and paver
| European Patent Office | 2021
Tensioning Tool, Tensioning System, And Method For Deploying The Tensioning System
| European Patent Office | 2022