LINEAR Solutions 25 for AutoCAD

Details on Component Data for the Open Roof Drain

Information on the component data dialog for open roof drains/rainwater supply.

The rainwater feed and the open roof drain determine the flow rate in the roof drainage network by their parameters and performance data.

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Project Tab ➤ Discipline ➤ Planning Type ➤ Analyse Tab ➤ Components ➤ Technical Data… ➤ Component Selection

Dialog Technical Data Linear Revit

Name

In this field you can enter an individual name for the component. Clicking on restores the original name and overwrites the previous entry.

Connected to Roof Area:

After calculating the drainage system, the name of the roof area connected to the drain or feed and the calculated roof area percentage for drainage are displayed here.

Load

Specify the Rainfall Area, the Discharge Coefficient, and the Accumulation Height here. If the outlet is supposed to be an emergency overflow, you may consider the over-five-minute-long rainfall for the dimensioning of the drain as well. You may access a table for the selection of discharge coefficients via the Dischar. Coefficients button. Once an area type is selected, the drainage index will be set according to table 16 of the DIN EN 12056-2 standard.

Calculated rainfall rate/Open area rainfall rate/Over-five-minute-long rainfall rate

Select which rainfall rate should be considered for the component.
Note: These options are disabled for drains and feeds that were created using the Network generator for Roof Drainage, as in this case, the rainwater discharge is defined uniformly for all drains or feeds of a network in the Roof Drainage Settings.

Roof slope greater than 1,5 %

This option is only visible if SP 30.13330.2016 or SP 30.13330.2020 has been selected as Method.

Enabled: The rainfall rate r1.20 is used instead of r1.5.

Outlet data

Once a neutral component is selected, you may enter the pertaining data here, provided you activated the preset option beforehand. The calculated value will be displayed in the Design Capacity field. In the case of manufacturer-specific drain outlets, data such as the maximum drain capacity or the nominal diameter of the connection cannot be changed at all, and the fields are deactivated.

Note:

The possibility to select special manufacturer components is not available in all versions of the program. Which manufacturers and components are available also depends on the installed and licensed product data sets.