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膜結構充電車棚在矯正時究竟會受到哪些影響呢?
來源:http://www.baokangjixie88.com/ 發布時間:2021-12-06
膜結構車棚廠家在校正膜結構車棚立柱時,應注意的問題是風與溫度的影響,在柱校正或柱校正后,柱校正會受到風和溫度的影響而受阻,校正后,風與溫度會使柱自動產生偏轉。那究竟能有哪些影響呢?
When the membrane structure shed manufacturer corrects the membrane structure shed column, it should pay attention to the influence of wind and temperature. After column correction or column correction, the column correction will be blocked by the influence of wind and temperature. After correction, the wind and temperature will automatically deflect the column. What impact can that have?
(1)風的影響。
(1) The influence of wind.
風力對柱表面施加壓力。柱表面寬度越寬,柱高度越高,風力的影響越大,柱的側向彎曲越大。因此,當立柱高度超過8m且風力超過5級時,無法進行立柱校正操作。校正后,膜結構車棚立柱達到垂直度時,膜結構車棚廠家應抓緊時間進入下一步安裝柱間橫向支撐,實現整體連接;增加其剛度,防止在風力作用下再次變形。
The wind exerts pressure on the surface of the column. The wider the column surface width, the higher the column height, the greater the influence of wind force and the greater the lateral bending of the column. Therefore, when the column height exceeds 8m and the wind force exceeds level 5, the column correction operation cannot be carried out. After correction, when the column of the membrane structure shed reaches the perpendicularity, the membrane structure shed manufacturer shall seize the time to enter the next step to install the transverse support between the columns to
(2)溫度效應。
(2) Temperature effect.
溫度的變化將導致立柱橫向彎曲,并移動立柱頂部。由于暴露在陽光下一側的溫度高于未暴露在陽光下一側的溫度,因此陽光一側的膨脹越大,導致立柱向陰暗側彎曲;溫度越高,柱內外表面溫差越大,對柱彎曲度的影響越大。因此,較好是在嚴熱季節的早晨或陰天糾正立柱操作。
The change in temperature will cause the column to bend laterally and move the top of the column. Since the temperature on the side exposed to the sun is higher than that on the side not exposed to the sun, the greater the expansion on the side exposed to the sun, resulting in the bending of the column to the dark side; The higher the temperature, the greater the temperature difference between the inner and outer surfaces of the column, and the greater the influence on the bending of the column. Therefore, it is better to correct the column operation in the morning or cloudy day of severe hot season.
通常,經過校正以達到垂直度的膜結構車棚立柱會在溫度的影響下自動偏轉。因此,避免校正柱進一步偏轉,并在下一步安裝支架或吊車梁之前重新測試。膜結構車棚廠家檢查柱橫向彎曲度的值由柱底面到柱頂部距離內的水平位移確定,水平位移值可通過經緯儀觀測。
Generally, membrane structure shed columns corrected to achieve perpendicularity will automatically deflect under the influence of temperature. Therefore, avoid further deflection of the correction column and retest before installing the support or crane beam in the next step. The value of the transverse curvature of the column checked by the membrane structure shed manufacturer is determined by the horizontal displacement within the distance from the bottom of the column to the top of the column, and the horizontal displacement can be observed by theodolite.
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