Vortex : Built with Processing and Processing.js

Highlight Roof Show wind pressure overlay Display wind zone Display pressure coefficients Display wind pressures (kN/m2)

Wind Direction:

Structure Orientation:

Basic Wind Velocity:

Site Altitude:

Minimum distance upwind to shore:

Minimum distance within town terrain:

Terrain Category:

Orography:

Calculation Precision:

Hover over image to zoom.

Image reproduced from NA to BS EN 1991-1-4: 2005 © BSI 2005.

Image reproduced from BS EN 1991-1-4: 2005 © BSI 2005.

Image reproduced from BS EN 1991-1-4: 2005 © BSI 2005.


Node Inputs Node x y z (tab delimited) Bar Inputs Bar Node 1 Node 2 (tab delimited)

Keyboard and Mouse

q: Zoom in.

w: Zoom out.

Click + drag: Rotate camera about centre.

Shift + click + drag: Pan camera centre.

Site data

Relevant instructions provided for individual fields to the right of the window when the field is clicked on.

All data is validated before the program is updated.

Structure Data

Vortex is designed to be used in conjunction with Autodesk's Robot Software.

Node and bar data may be copy and pasted directly from Robot tables into the relevant fields on the 'Structure Data' tab.

The below video demonstrates this process.

Headings and extra lines will be removed during validation, as will extra columns to the right of the required data.

Node and bar data from other software may be utilised provided data is inputted in the format described, with individual 'columns' delimited with tab, and individual rows delimited by a new line.

Calculations

Calculation breakdowns are provided in the calculations tab.

All calculations are conducted to BS EN 1991-1-4:2005 and the UK national annex (NA to BS EN 1991-1-4:2005).

Note to Paul

Example Robot files are included within the 'template' folder of the submission.

Notepad files with correctly formatted bar and node data are also provided in the same folder.