A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Prestressed anchor rod holding load judgment method
The invention relates to the technical field of pre-stressed anchor rods, and discloses a pre-stressed anchor rod holding load judgment method which comprises the following judgment steps: 1) the upper part of a pre-stressed anchor rod is provided with a tensioning section; the tensioning section is fixedly connected with an anchor head; a load is applied to the tensioning section through the jack, multiple pieces of actual measurement data are obtained, and the actual measurement data comprise the load value of each stage and the corresponding displacement amount; 2) making a P-s graph by using a plurality of actually measured data; (3) when the bias direction of the current connecting line is opposite to the bias direction of the previous connecting line, judging that the current connecting line is a reflexed connecting line, the intersection of the reflexed connecting line and the previous connecting line is a reflexed point, the previous actually measured data of the reflexed point is a balance point, the load of the balance point is the holding load of the pre-stressed anchor rod, and the load of the pre-stressed anchor rod is the holding load of the pre-stressed anchor rod. And the holding load of the pre-stressed anchor rod can be effectively judged.
本发明涉及预应力锚杆的技术领域，公开了预应力锚杆持有荷载判断方法，包括以下判断步骤：1)、预应力锚杆的上部具有张拉段；张拉段固定连接有锚头；通过千斤顶给张拉段施加载荷，获得多个实测数据，实测数据包括每级载荷值以及对应的位移量；2)、利用多个实测数据制作P‑s图；3)、当当前的连线的偏置方向与前一个连线的偏置方向相反时，判定当前的连线为反折连线，反折连线与前一个连线的交汇处为反折点，反折点的前一个实测数据为平衡点，平衡点的载荷为预应力锚杆的持有载荷，可以有效判断预应力锚杆的持有载荷。
Prestressed anchor rod holding load judgment method
The invention relates to the technical field of pre-stressed anchor rods, and discloses a pre-stressed anchor rod holding load judgment method which comprises the following judgment steps: 1) the upper part of a pre-stressed anchor rod is provided with a tensioning section; the tensioning section is fixedly connected with an anchor head; a load is applied to the tensioning section through the jack, multiple pieces of actual measurement data are obtained, and the actual measurement data comprise the load value of each stage and the corresponding displacement amount; 2) making a P-s graph by using a plurality of actually measured data; (3) when the bias direction of the current connecting line is opposite to the bias direction of the previous connecting line, judging that the current connecting line is a reflexed connecting line, the intersection of the reflexed connecting line and the previous connecting line is a reflexed point, the previous actually measured data of the reflexed point is a balance point, the load of the balance point is the holding load of the pre-stressed anchor rod, and the load of the pre-stressed anchor rod is the holding load of the pre-stressed anchor rod. And the holding load of the pre-stressed anchor rod can be effectively judged.
本发明涉及预应力锚杆的技术领域，公开了预应力锚杆持有荷载判断方法，包括以下判断步骤：1)、预应力锚杆的上部具有张拉段；张拉段固定连接有锚头；通过千斤顶给张拉段施加载荷，获得多个实测数据，实测数据包括每级载荷值以及对应的位移量；2)、利用多个实测数据制作P‑s图；3)、当当前的连线的偏置方向与前一个连线的偏置方向相反时，判定当前的连线为反折连线，反折连线与前一个连线的交汇处为反折点，反折点的前一个实测数据为平衡点，平衡点的载荷为预应力锚杆的持有载荷，可以有效判断预应力锚杆的持有载荷。
Prestressed anchor rod holding load judgment method
预应力锚杆持有荷载判断方法
FU WENGUANG (author) / WU XIAOLING (author) / LI YUN (author) / LIU YONGJIA (author) / TU FENG (author) / DU ZICHUN (author) / LI WANREN (author) / YE QIANNA (author) / QIN JING (author) / HUANG YUNNING (author)
2023-11-03
Patent
Electronic Resource
Chinese