Concrete-filled steel tube power transmission tower intersecting joint with prestressed steel wires and manufacturing method for concrete-filled steel tube power transmission tower intersecting joint
A technology of prestressed steel wire and steel pipe concrete, applied in towers, building types, buildings, etc., can solve problems such as weld tearing, reduce tension and bending moment, reduce the risk of weld cracking, and reduce tearing. crack risk effect
Active Publication Date: 2017-11-24
CHINA ELECTRIC POWER RES INST +2
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Problems solved by technology
[0004] In view of this, the present invention proposes an intersecting node of a concrete-filled steel tube transmission tower containing prestressed steel wires and a manufacturing method thereof, aiming at solving the problem of weld tearing at the intersecting node of a steel tube concrete transmission tower
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[0025] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0026] Example of intersecting nodes:
[0027] see figure 1 , figure 1 Schematic diagram of the structure of the intersecting node of the steel pipe concre...
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The invention provides a concrete-filled steel tube power transmission tower intersecting joint with prestressed steel wires and a manufacturing method for the concrete-filled steel tube power transmission tower intersecting joint. The intersecting joint comprises a flange, a main pipe and two inclined pipes; the inclined pipes are composed of a plurality of sections; one of the inclined pipes is arranged at an acute angle with the main pipe, and the other inclined pipe is arranged at an obtuse angle with the main pipe; and both the first sections of the two inclined pipes are connected with the main pipe; the first section is connected with a secondary section through a connecting piece, wherein the second section is connected with the first section; the prestressed steel wires are arranged in the inclined pipes; a stiffening piece is arranged in the main pipe; first ends of the prestressed steel wires are connected with the stiffening piece, and second ends of the prestressed steel wires are connected with the connecting piece. According to the concrete-filled steel tube power transmission tower intersecting joint with the prestressed steel wires, the prestressed steel wires are fixed through the arranged stiffening piece and bears tensile force and bending moment of the inclined pipes, the risk of tearing of joint intersecting line welding seams is reduced, therefore, the tensile force and the bending moment applied to the welding seams when the inclined pipes are in tension are reduced by the intersecting joint, and the risk that the welding seams are cracked is reduced.
Description
technical field [0001] The invention relates to the technical field of concrete transmission towers, in particular to an intersecting node of a steel pipe concrete transmission tower containing prestressed steel wires and a manufacturing method thereof. Background technique [0002] With the increase of the height and load of the transmission tower, the traditional pure steel pipe main material transmission tower can no longer meet the needs. Since 2008, concrete-filled steel tubes have been widely used in large-scale transmission towers across rivers and seas. Because the height of these large-scale transmission towers is mostly over 200 meters, the diameter of the concrete filled steel pipe main pipe is also greater than 800mm, and the diameter of the inclined pipe will basically exceed 400mm. As a result, the size of the board is too large, and the bolts on the board are too dense, making construction difficult and heavy. Therefore, the steel tube concrete transmission ...
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IPC IPC(8): E04H12/14
CPCE04H12/14
Inventor 刘海锋韩军科朱彬荣黄耀朱承治
Owner CHINA ELECTRIC POWER RES INST
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