3dimensional bendan architectural application

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

where do we come from?

where do we come from?

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

working with structural engineers and international architects

Coop himmelb(l)auBMW Munich, Musee de confluence lyon

Frank o´gehry and associates

Kunsthaus grazpeter cook and colin fournier

where do we come from?

Recent projects are:

Office building in Istanbul hotel in istanbul a busstation near bodrum

founding partner of ii architects int in 2003www.2architects-int.com

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

Geometrical criterias:- design a surface with an overall size of 144 m²- create a freeformed nurbs - surface

design parameterswireframe [will] work workshop

university of applied arts vienna (2003-2004):

Architectural criterias:- create a new space for the university´s courtyard.- Define it´s use

Structural criterias:- find a skeletal spatial structure- use reinforcement steel for material

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

thin concrete shells and theirreinforcement

in 1925 the Zeiss planetarium jena is one of the firstthin concrete shells, with a diameter of 25m.

The reinforcementmesh was based on a icosahedron, thatinspired buckminsterfuller 20 years laterfor his geodesicdomes.

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

Wooden Formwork for a

Concrete Shell

structural engineer:

Heinz Isler

Church of Casis GR

structural engineer:

Heinz Isler

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

thin concrete shells seem to have disappeared over the last decades

Reasons are:

- labour intensive and costly process of construction of the Wooden formwork

- costly pre-bending of the reinforcement steel

- increasing ease in analysing complex skeletal spatial structures offered by advances in computer technology

-> concrete shells are less competitive than they were a few decades ago.

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

3dimensional bend, our solution:

- elimination of the need for a large temporary formwork in constructing

- new automation of the bending process for reinforcement steel rods

pct - patent application pct/at05/000473“direct numeric control method for reinforcement bending machines” (inventors: s. Brell-Cokcan, Dumene comploi )

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

built solutions for skeletal spatialstructures (steel)

BMW-WAVE, ABB Architekten

Approximation through arc- segments (circular tubes) or polylines

Interior of kunsthaus graz/ peter cook, colin fournier

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

built solutions for skeletal spatialstructures (steel)

BMW-WAVE, ABB Architekten

Approximation through arc- segments (circular tubes) or polylines

Interior of kunsthaus graz/ peter cook, colin fournier

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

Bending without segmentationreinforcement steel to be bent in one piece

How to solve double curvature:

- plastic deformation in one direction (xZ)

- elastic deformation in the other xY

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

Bending machine:

Criterias:

- Feeding speed

- Angle of deviation

- Length of segments

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

WIREFRAME [WILL] WORKdesign: mario gasser, lisa ehses, cornelia faisst

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

WIREFRAME [WILL] WORKOPTIMIZATION with finite elements method

1

MAY 28 200316:36:02

ELEMENTS

REAL NUM

UFACEL

1

MN

MX

0

.004512.009023

.013535.018046

.022558.027069

.031581.036092

.040604

MAY 28 200316:28:04

NODAL SOLUTION

STEP=1SUB =1TIME=1USUM (AVG)RSYS=0DMX =.040604SMX =.040604

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

WIREFRAME [WILL] WORKOPTIMIZATION with finite elements method

1

MAY 28 200316:36:02

ELEMENTS

REAL NUM

UFACEL

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

WIREFRAME [WILL] WORKApproximation of the wireframe

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

WIREFRAME [WILL] WORKApproximation of the wireframe

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

WIREFRAME [WILL] WORKApproximation of the wireframe

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

WIREFRAME [WILL] WORKexpander - true length

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

WIREFRAME [WILL] WORKexpander - true length

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

minimum of formwork withLasercut steel panels

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

WIREFRAME [WILL] WORK

An interdisciplinary project university of applied arts vienna

Design and computationUniv.Lekt. Sigrid Brell-Cokcan

Structural engineeringo.Univ.Prof. Klaus Bollinger

Modell makingUniv. Lektor Ernst Brüll

Interdisciplinary design

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

Geometry

Structural engineering

Architectural design

InterdisciplinaryDesign

how to understand your design partners?

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY

Thank you forthe spirit of my sponsorsandFor the teamworkof my students

and for your attention!

UNIVERSITY OF APPLIED ARTS VIENNA © Sigrid Brell-Cokcan VIENNA UNIVERSITY OF TECHNOLOGY