A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a spiral supporting angle and a cushion block supporting angle for tensioning a low-retraction anchorage device. The low-retraction anchorage device can reduce the retraction amount of the steel strand in the tensioning construction and reduce the prestress loss; the spiral supporting angle and the cushion block supporting angle for tensioning the low-retraction anchorage device can be adjusted to increase the length of the supporting angles according to the requirements of two times of tensioning; and the two supporting angles are used, a jack and the supporting anglesare installed at a time, the processes of disassembling the jack, installing the supporting angles, installing a tensioning rod, installing the jack again and the like are not needed between two times of tensioning needed by the low-retraction anchorage device, the tensioning process is greatly simplified, and tensioning construction operation is facilitated.
低回缩锚具，可以降低张拉施工中钢绞线的回缩量，减少预应力损失。用于低回缩锚具张拉的螺旋撑角和垫块撑角，可根据两次张拉的需要调整增加撑角的长度。使用这两种撑角，千斤顶和撑角一次安装，在低回缩锚具所需两次张拉中间不需要拆卸千斤顶、安装撑角、安装张拉杆、再次安装千斤顶等过程，张拉过程大大简化，利于张拉施工作业。
The invention discloses a spiral supporting angle and a cushion block supporting angle for tensioning a low-retraction anchorage device. The low-retraction anchorage device can reduce the retraction amount of the steel strand in the tensioning construction and reduce the prestress loss; the spiral supporting angle and the cushion block supporting angle for tensioning the low-retraction anchorage device can be adjusted to increase the length of the supporting angles according to the requirements of two times of tensioning; and the two supporting angles are used, a jack and the supporting anglesare installed at a time, the processes of disassembling the jack, installing the supporting angles, installing a tensioning rod, installing the jack again and the like are not needed between two times of tensioning needed by the low-retraction anchorage device, the tensioning process is greatly simplified, and tensioning construction operation is facilitated.
低回缩锚具，可以降低张拉施工中钢绞线的回缩量，减少预应力损失。用于低回缩锚具张拉的螺旋撑角和垫块撑角，可根据两次张拉的需要调整增加撑角的长度。使用这两种撑角，千斤顶和撑角一次安装，在低回缩锚具所需两次张拉中间不需要拆卸千斤顶、安装撑角、安装张拉杆、再次安装千斤顶等过程，张拉过程大大简化，利于张拉施工作业。
Spiral supporting angle and cushion block supporting angle for tensioning low-retraction anchorage device
用于低回缩锚具张拉的螺旋撑角和垫块撑角
WU LIXIN (author)
2020-08-04
Patent
Electronic Resource
Chinese
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