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A platform for research: civil engineering, architecture and urbanism
Prestress applying anchoring device and anchoring method of prestress anchor rod
The invention discloses a prestress applying anchoring device of a prestress anchor rod. The prestress applying anchoring device comprises a pre-tightening nut and a heating piece, the pre-tightening nut and the heating piece form a fusible pre-tightening nut assembly, and the heating piece is tightly attached to the pre-tightening nut in an adhesive mode, embedded into the pre-tightening nut or wrapped on the pre-tightening nut. The pre-tightening nut is adopted to apply stress to a main anchor rod steel bar at the upper end of the anchor rod and is pre-locked, the pre-tightening nut is a nut capable of controlling locking failure, and a main nut is fixedly pre-arranged at the top end of the anchor rod steel bar at the upper part of the pre-tightening nut; and then bottom plate casting is conducted till a concrete bottom plate foundation structure is solidified to reach the design strength, and after locking of the pre-tightening nuts fails, the applied prestress is transmitted to the main nuts, so that the prestress is transmitted and applied to the concrete bottom plate foundation structure.
一种预应力锚杆的预应力施加锚固装置，锚固装置包括预紧螺母和加热片，构成一个可熔的预紧螺母组件，预紧螺母上紧贴粘接、嵌入或包裹加热片。采用一个预紧螺母在锚杆上端对主锚杆钢筋施加应力并预先锁定，预紧螺母是一个可控锁定失效的螺母，另用主螺母固定预置在预紧螺母上部锚杆钢筋的顶端；再进行底板浇铸，直到混凝土底板基础结构固化达到设计强度后，通过使预紧螺母锁定失效，使施加的预应力传递到主螺母上，从而使预应力传递施加在混凝土底板基础结构上。
Prestress applying anchoring device and anchoring method of prestress anchor rod
The invention discloses a prestress applying anchoring device of a prestress anchor rod. The prestress applying anchoring device comprises a pre-tightening nut and a heating piece, the pre-tightening nut and the heating piece form a fusible pre-tightening nut assembly, and the heating piece is tightly attached to the pre-tightening nut in an adhesive mode, embedded into the pre-tightening nut or wrapped on the pre-tightening nut. The pre-tightening nut is adopted to apply stress to a main anchor rod steel bar at the upper end of the anchor rod and is pre-locked, the pre-tightening nut is a nut capable of controlling locking failure, and a main nut is fixedly pre-arranged at the top end of the anchor rod steel bar at the upper part of the pre-tightening nut; and then bottom plate casting is conducted till a concrete bottom plate foundation structure is solidified to reach the design strength, and after locking of the pre-tightening nuts fails, the applied prestress is transmitted to the main nuts, so that the prestress is transmitted and applied to the concrete bottom plate foundation structure.
一种预应力锚杆的预应力施加锚固装置，锚固装置包括预紧螺母和加热片，构成一个可熔的预紧螺母组件，预紧螺母上紧贴粘接、嵌入或包裹加热片。采用一个预紧螺母在锚杆上端对主锚杆钢筋施加应力并预先锁定，预紧螺母是一个可控锁定失效的螺母，另用主螺母固定预置在预紧螺母上部锚杆钢筋的顶端；再进行底板浇铸，直到混凝土底板基础结构固化达到设计强度后，通过使预紧螺母锁定失效，使施加的预应力传递到主螺母上，从而使预应力传递施加在混凝土底板基础结构上。
Prestress applying anchoring device and anchoring method of prestress anchor rod
一种预应力锚杆的预应力施加锚固装置与锚固方法
WANG LIN (author) / WANG JUN (author) / LIU SONGMEI (author)
2021-08-06
Patent
Electronic Resource
Chinese
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