A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Fabricated prestressed hollow interlayer concrete-filled steel tube power transmission pole
The invention discloses an assembly type prestress hollow interlayer concrete filled steel tube power transmission pole which comprises a plurality of conical hollow interlayer concrete filled steel tube poles and a steel tube pole which are sequentially and fixedly connected on a bearing platform from bottom to top. The hollow interlayer steel pipe concrete pole comprises an inner steel pipe and an outer steel pipe which are coaxial and not in contact, and second flange plates are arranged at the top end and the bottom end of the outer steel pipe; lightweight concrete is filled between the inner steel pipe and the outer steel pipe, vertical holes evenly distributed in the circumferential direction are prefabricated in the lightweight concrete in the vertical direction, prestress is applied to the hollow interlayer steel pipe concrete electric pole through a post-tensioning method, the tensile property of prestressed tendons can be fully exerted, the defect that the tensile strength of concrete is low is overcome, and the tensile strength of the hollow interlayer steel pipe concrete electric pole is improved. The prestressed tendons are tensioned along the full length of the pole body, the overall stability of the structure can be improved, the flexural capacity and rigidity of the structure are remarkably improved, and the technical problem that in the prior art, the overall stability of a hollow interlayer steel pipe concrete pole is low under the action of large horizontal loads is solved.
本发明公开了一种装配式预应力中空夹层钢管混凝土输电杆，包括在承台上由下至上依次固定连接的多个锥形的中空夹层钢管混凝土杆和一个钢管杆；中空夹层钢管混凝土杆包括同轴且不接触的内钢管和外钢管，外钢管的顶端和底端均设置有第二法兰盘；所述的内钢管和外钢管之间填充有轻质混凝土，轻质混凝土中沿竖向预制有沿周向均匀分布的竖向孔，通过对中空夹层钢管混凝土电杆采用后张法施加预应力，可充分发挥预应力筋的抗拉性能，弥补混凝土抗拉强度低的不足，沿杆体通长张拉预应力筋，可提升结构整体稳定性，显著增加结构的抗弯承载力和刚度，解决现有技术中中空夹层钢管混凝土电杆在较大水平荷载作用下整体稳定性较低的技术问题。
Fabricated prestressed hollow interlayer concrete-filled steel tube power transmission pole
The invention discloses an assembly type prestress hollow interlayer concrete filled steel tube power transmission pole which comprises a plurality of conical hollow interlayer concrete filled steel tube poles and a steel tube pole which are sequentially and fixedly connected on a bearing platform from bottom to top. The hollow interlayer steel pipe concrete pole comprises an inner steel pipe and an outer steel pipe which are coaxial and not in contact, and second flange plates are arranged at the top end and the bottom end of the outer steel pipe; lightweight concrete is filled between the inner steel pipe and the outer steel pipe, vertical holes evenly distributed in the circumferential direction are prefabricated in the lightweight concrete in the vertical direction, prestress is applied to the hollow interlayer steel pipe concrete electric pole through a post-tensioning method, the tensile property of prestressed tendons can be fully exerted, the defect that the tensile strength of concrete is low is overcome, and the tensile strength of the hollow interlayer steel pipe concrete electric pole is improved. The prestressed tendons are tensioned along the full length of the pole body, the overall stability of the structure can be improved, the flexural capacity and rigidity of the structure are remarkably improved, and the technical problem that in the prior art, the overall stability of a hollow interlayer steel pipe concrete pole is low under the action of large horizontal loads is solved.
本发明公开了一种装配式预应力中空夹层钢管混凝土输电杆，包括在承台上由下至上依次固定连接的多个锥形的中空夹层钢管混凝土杆和一个钢管杆；中空夹层钢管混凝土杆包括同轴且不接触的内钢管和外钢管，外钢管的顶端和底端均设置有第二法兰盘；所述的内钢管和外钢管之间填充有轻质混凝土，轻质混凝土中沿竖向预制有沿周向均匀分布的竖向孔，通过对中空夹层钢管混凝土电杆采用后张法施加预应力，可充分发挥预应力筋的抗拉性能，弥补混凝土抗拉强度低的不足，沿杆体通长张拉预应力筋，可提升结构整体稳定性，显著增加结构的抗弯承载力和刚度，解决现有技术中中空夹层钢管混凝土电杆在较大水平荷载作用下整体稳定性较低的技术问题。
Fabricated prestressed hollow interlayer concrete-filled steel tube power transmission pole
一种装配式预应力中空夹层钢管混凝土输电杆
LIANG YANTAO (author) / LI ZHENGFA (author) / HUANG LIANGHONG (author) / HUANG LINKE (author) / LI HAN (author) / FENG XIAOQIAN (author) / BAO YIJUN (author) / WANG XIANTIE (author)
2022-11-15
Patent
Electronic Resource
Chinese
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