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Tendon Layout Tabular Data | |
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Reference Support Line | Select a reference support line. |
Longitudinal Distance[ft] | Set the station difference along PGL from Reference Support Line. |
Transerverse Offset[ft] | Set the transverse offset according to Section Reference Edge of Girder. |
Vertical Offset[ft] | Set the vertical offset according to Section Reference Edge of Girder. |
Radius[ft] | Set the point’s radius of curve. |
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Transverse Tendon Path: This cell is activated when Layout Input Method is selected as Path Data. If Layout Input Method is selected as Tabular Data this cell is displayed as “N/A”.
This definition allows user to define a transerve offset with respect to the reference line of Girder. With the use of this tool curve with different type of variations [None/Linear/Parabola/Circular/Polynomial Fit] can be assigned between points.
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Percent Loss(%): Set the percent loss for the long-term losses. This is an optional input. Users can leave this input as 0 and let OpenBrIM calculate the long-term losses using the CEB-FIB 1990 curve by running the time-dependent analysis. Alternatively, users can set an approximate value for the Percent Loss (%) to account for long-term losses, which will reduce the Jacking Force values of the tendon.
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There are two methods for calculating tendon losses in OpenBrIM. The first method, the approximate method, involves defining the Percent Loss (%) of the tendon objects on the FEA tab, as outlined above. The second method, the detailed method, is as follows:
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