LINE TEST TABLES

Following to the execution of line calculations, the relevant Test Tables become available. Relating to every pre-set test hypothesis, the data below show up. A window displays, illustrating the summary of the calculus hypotheses carried out, and, a set of selection pushbuttons are provided.

    1. Pushbuttons, whose meaning is easy to understand, make it possible handling the analysis of the tests carried out.
    2. On normal working conditions, with precept input parameters.
    3. With the turnbuckle value changed so as keep into an account the tolerance for the hydraulic control devices.
    4. With the hydraulic turnbuckle faulty, thus, with crab tension decrease in comparison with the designed value.

 

AVAILABLE OUTPUT DATA

For the spans

      1. Span number (identified by adjacent towers)
      2. T(v)    - rope tension downstream the span ( the same column also shows the max. and min. values if calculation has been carried out
                   according to the concentrated loads method, whereas, only one value if calculation has been carried out according to the uniformly
                   distributed loads method).
      3. T(m)  - rope tension upstream the span (along with the same information as that above cited).
      4. F      - Deflection at span middle( maximum, minimum or mean)
      5. a(v)   - rope mouth angle with the downstream tower roller assembly , with reference to the horizontal line
      6. a(m)  - rope mouth angle with the downstream tower roller assembly, with reference to the horizontal line

For the towers

      1. Tower identification number
      2. T(s) – rope tension on the tower, at the middle of the roller assembly
      3. D(tot) – rope deflection on the tower roller assembly, that is, the difference between the rope mouth angles at tower entry and exit . a(m,j) being the mouth angle of the span (j) downstream the tower and a(v,j+1) being the mouth angle of the span (j+1) upstream the tower, deflection is D(tot) = a(m,j)-a(v,j+1)
      4. P – total rope pressure on the tower:  P = 2 x T(s) x SEN(D(tot)/2)
      5. Attr – total friction of the rope against the roller assembly  : Attr = P x At(%)  or  Attr = At(ass) x NR as a function of the selected friction
      6. NR – number of rollers in the roller assembly
      7. D(u) – rope deflection on a single roller: D(u) = D(tot) / NR
      8. P(u) – rope pressure on a single roller  : P(u) = P / NR

 

Test result printing

Test result printing is available through the relevant command on the Excel Menu: see the example which follows.