Temperature Page SNiP
The temperature is calculated according to chapter 13 in SNiP 2.01.07-85* and chapter 6.27 in SP 35.13330.2011.
Uniform temperature
Consider uniform temperature load (Yes/No).
Characteristic temperature tn,X (C) is equal to minimum designed temperature is defined as the average temperature of the coldest 5 days taken from SNiP 23-01 with the availability 0,98 for steel and composite structures. Characteristic temperature tn,T (C) is the summation of the mean temperature of the warmest month according to SNiP 23-01 (tVII) and the mean daily amplitude (T). Temperature load depends on the area where the structure is situated and it is defined by the temperature maps.
Characteristic values of temperatures in warm and cold period tn,T (C), tn,X (C) are user input and calculating following formula: Dt = [ tn,T - ( tn,X ) - 15 °C ] => we get uniform temperature values t3, X (minus sign) and t3, T (plus sign).
Gradient temperature
We have 3 different diagrams for non-linear distribution of temperature in the Cross section: Type 1 , 2 and 3.
| Setting | Description | |||
|---|---|---|---|---|
| Gradient | Consider temperature gradient (Yes/No). | |||
| Type 1 | T max is User Input - default set to 15 degrees. Automatically is calculated value tn,i = ht,i × t max, which is giving us values of Graphic for every Z,i eccentricity. ht,i = √ [ 3.91 × Z,i/hw - 3.82 × (Z,i/hw)2 ] where
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| Type 2 | T max is User Input - default set to 15 degrees. Automatically is calculated value tn,i = ht,i × t max, which is giving us values of Graphic for every Z,i eccentricity. ht,i = [ Z,i/50 cm - 1 ]2 |
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| Type 3 | Temperature difference is rectangular envelope, it is equal to T max and it is distributed on the whole height of steel and concrete part but with different sign/sides. |