Pressure measuring method of power transmission tower
A technology of transmission tower and measuring point, which is applied in the direction of measuring device, testing of mechanical parts, testing of machine/structural parts, etc. The effect of reducing impact, improving reliability, and accurate measurement results
Active Publication Date: 2015-06-03
CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD +1
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Problems solved by technology
[0005] Based on this, it is necessary to provide a more accurate and effective pressure measurement method for transmission towers in view of the problem that the high-frequency balance force measurement method cannot obtain the wind load distribution of local members and overestimate the bearing capacity of transmission towers
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[0024] To put it simply, the wind tunnel experiment is to fix the model of the aircraft or other object models in an artificial environment according to the principle of relativity of motion, and artificially create conditions such as terrain, wind load and airflow in the experimental area, so as to simulate various conditions in the air. Obtaining test data in a complex state is also a common experimental method for the development and production of modern advanced equipment.
[0025] like figure 1 , figure 2 As shown, a transmission tower pressure measurement method uses wind tunnel experiments to obtain the wind pressure of the transmission tower model. The transmission tower model is composed of multiple rods, and the rods are hollow rods. A plurality of measuring points 16 are arranged on the rod, and pipelines connecting the measuring points come out from the inside of the hollow rod. The arrangement position of the measuring point 16 is not limited, it can be arrange...
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The invention disclose a pressure measuring method of a power transmission tower, which comprises a power transmission tower model; the power transmission tower model is formed by combining a plurality of rod pieces; the rod pieces are hollow; a plurality of measuring points are arranged on the rod pieces; and a pipeline connecting the measuring points extends out of the hollow rod pieces. According to the pressure measuring method, the measuring points are arranged on local rod pieces so as to measure the wind loads of at different parts of different local rod pieces, without being influenced by the positions of the measuring points, the rod pieces of the power transmission tower model are manufactured into be hollow so as to allow the pipeline to pass through the hollow rod pieces, so that the influence of the pipeline on the wind loads is reduced, the measuring result is more accurate, the data accuracy is improved, the capability of the power transmission tower is not over-estimated, and meanwhile, the pipeline passes through the hollow rod pieces to ensure that the measuring points can be randomly arranged, so that the wind loads of the local rod pieces can be obtained possibly.
Description
technical field [0001] The invention relates to the field of wind pressure measurement, in particular to a pressure measurement method for a power transmission tower. Background technique [0002] With the development and popularization of electricity, the transmission tower has become an important lifeline power engineering facility in modern production and life, and its design has strict requirements. [0003] Transmission towers are built in places with complex terrain such as outdoor mountains or deserts. Wind load is the most important load in the design of transmission towers. Because transmission towers are large in size and occupy more space, wind loads have a great impact on them, especially Wind loads in areas with complex surrounding environments are also complex, so the wind loads on transmission towers are different at different points. In the past, the design of transmission towers simply distributed the wind load of each section to the tower body according to...
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IPC IPC(8): G01M13/00G01M99/00
Inventor 楼文娟金晓华黄志秋金小明王东沈国辉王衍东王振华刘万群陈雄伟朱映洁吴培烽邱昊吴晖
Owner CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD