Variable cross-section auxiliary positioning angle steel
A technology of variable section and positioning angle, applied in towers, building types, buildings, etc., can solve the problems of lack of horizontal fixed conditions and support conditions, difficult to control the slope and position of inserted angle steel, saving construction materials, The effect of small size and convenient position control
Active Publication Date: 2018-03-02
STATE GRID CORP OF CHINA +2
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Problems solved by technology
However, since the suspended main character steel is suspended inside the slanted column formwork, it does not have the conditions for fixing the horizontal direction and supporting conditions, so it is difficult to control the slope and position of the inserted angle steel
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Embodiment Construction
[0022] Below in conjunction with accompanying drawing, the present invention is described in further detail:
[0023] Variable section auxiliary positioning angle steel, including supporting angle steel 3, connecting angle steel 2 and leading angle steel 1, connecting angle steel 2 adopts L100×10×300 angle steel, supporting angle steel 3 is L70×8 small angle steel; the upper part of supporting angle steel 3 and connecting angle steel 2 are welded on Together, the angle steel back supporting the upper part of the angle steel 3 is shoveled, and the shape is set to the same rounded corner as the inner side of the connecting angle steel 2, and the angle steel back supporting the upper part of the angle steel 3 and the inner side of the connecting angle steel 2 are bonded and welded together.
[0024] The upper part of the connecting angle steel 2 is connected with the lower part of the leading role steel 1 by bolts, two rows of through holes 1-2 are arranged on each angle steel leg...
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The invention discloses variable cross-section angle iron for aiding positioning for construction of transmission towers. The variable cross-section angle iron includes supporting angle iron arranged at the lower part, connecting angle iron fixedly connected with the upper part of the supporting angle iron, and main angle iron, wherein the lower part of the main angle iron is fixedly connected with the connecting angle iron; the inner side of the lower part of the connecting angle iron is connected with back of angle iron at the upper part of the supporting angle iron; back of angle iron at the upper part of the connecting angle iron is connected with the inner side at the lower part of the main angle iron; wherein a plurality of through-holes are formed in the main angle iron; a positioning plate is arranged at the lower part of the supporting angle iron. The variable cross-section angle iron for aiding positioning is convenient in position control and saves construction material.
Description
technical field [0001] The invention relates to a positioning angle steel, which is used for the construction of transmission line iron towers. Background technique [0002] In the construction of power grid transmission towers, the leading steel of the tower legs must be positioned with high precision in the foundation, including the dimensions of the tower roots in the front, rear and left and right directions, the height difference between the tower legs, the slope of the leading steel in the front, rear and left and right directions, The slope of the main material of the tower must be consistent, etc., and must be accurate. In order to reduce the amount of materials and construction costs, the construction method of the inserted foundation of the leading role steel can be suspended in the foundation column, and the lower end of the leading role steel is not directly connected to the foundation. However, since the suspended main character steel is suspended inside the in...
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IPC IPC(8): E04H12/08
Inventor 尹泉军吴自强王记住赵志勇吴彬员景胜利金晓明付昊博张鑫梦段永亮强勇俞文李星周雪涛
Owner STATE GRID CORP OF CHINA