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Automatic creation of REVIT and LUSAS models

using parametric data. Case Studies.


11 November 2014

 University of Denmark

DTU Diplom  Lautrupvang 11A  • 2750 Ballerup • Denmark




ICDAS YouTube Channel   

Seminar 11 November is a continuation of 23 June 2014 where parametric models have been presented

in overview on both of buildings and bridges. Seminar 11 November will focus on a specific model of

each field. Wind Turbine Foundations and Road Bridges are chosen as examples. Automatic models

creation will apply for Revit and Lusas models with some changes in input to outline fast the appearance

of the models at a given site.


The idea of the examples is also to demonstrate how fast we can create a 3D FEM model for further analysis

on static and dynamic behaviour of the constructions for a given support condition at the site.




 13:30Welcome, Truc Huynh and Philip
 14:00 Wind Turbine Foundations , Truc Huynh, ICDAS


Gravity base foundations with rib walls vs. conical slab supported. Automatic 3D reinforcement creation.

2D sections layouts from 3D model and so on.

Jacket foundations with varying dimensions after water depth.



Gravity base foundation (GBF) with max/min stresses from smart combination of deadload and liveload.

Automatic creation of soil volume element below the base slab of GBF model.

Jacket foundations with natural mode shapes and frequencies.


 15:00Road Bridges, Truc Huynh, ICDAS 


Creation of 3D bridge model from terrain model (AutoCAD Civil3D).

2D sections layouts from 3D model and so on.


LusasMax/Min stresses from smart combination of SLS Quasi Permanent Load Combination

(mild reinforcement slab deck)




 16:00 LUSAS 1, Philip, LUSAS
 17:00LUSAS 2, Philip, LUSAS
 17:50 End of the day
NB: Program can be updated according to participants' wishes and requirements



Please email th@icdas.dk  to reserve your place. Please note in mail if Wind Turbine Foundations, Road Bridges,

or other models you are most interested.


Registration free, but limited number of participants.

Deadline 31 October 2014

For further information about Lusas please visit this page or contact philip.icke@lusas.com 

123456789_12345678The Event Partners


Philip Icke

European Regional Manager,
Forge House, 
66 High Street,
Kingston upon Thames, 
Surrey, KT1 1HN, UK

Email: philip.icke@lusas.com


Truc Huynh

Hans Erik Nielsens Vej 3
DK-3650 Ølstykke

Email: th@icdas.dk 
Tel.: +45 29 90 92 96
CVR no.: 34436169



Last seminar

ICDAS-LUSAS Seminar 23 June 2014
, Automatic creation of REVIT and LUSAS models using parametric data


123456789_12345678 Natural mode shapes and frequencies jacket foundation 

Infinite stiff support (2.018Hz)

Finite stiff support (0.393Hz)


Figure: Natural frequencies depending on support conditions.


Example of jacket foundation (Height, diameter top, diameter bot) = (40000, 14000, 7000)mm  


Shows above are the 1st mode shape of the two assumptions of support. The case of fixed support

the bottom points are fixed. The case of finite stiff support (linear) the bottom points are vibrated up

and down according to the assumed linear springs 10000kN/m translation and 10000kNm/rad rotation.

This numerical test shows that the ratio of natural frequency is up to 2.018/0.393=5.1 between the cases.

The following remarks can be drawn:


§       Soil-structure interaction needed to analysis at the points assuming to be support. The soil surrounding

      the pile element (here assumed point) does not keep the pile moving up and down with the same force,

      as assuming with linear spring kUZ=10000kN/m. It is about the shear modulus G of the soil and also the

      external actions on the structure.

§       Natural frequency of the full model is lower with the structural turbine and components model above

      the jacket foundation.

At the seminar the soil model surrounding the piles and the soil properties will be discussed.


 Travel & Hotel

From Kastrup Copenhagen Airport

Train/Metro from Copenhagen Airport to Copenhagen Main Station 

(København H)/Vanløse station, 

S-train further to Ballerup Station.

Bus from Ballerup Station to DTU Diplom Ballerup

The trip will take about 1 hour.

More details at http://www.rejseplanen.dk


E20 from Odense ® O4 Ballerup

E47 from Rødby ® E20 ® O4 Ballerup

See the map below

Hotels in Ballerup


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Updated 04-08-2014