Recreational Area Tension Membrane Structure in Châteauneuf-de-Galaure, France
Customer Project
![[FR] CP 001170 | Playground with Tension Membrane Structure in Châteauneuf-de-Galaure, France](http://img.youtube.com/vi/jOjLYa4r3_4/mqdefault.jpg)
The engineering company ACS provided the full project structural analysis and design including the fabric membrane and frame structure.
| Investor | O.G.E.C Châteauneuf - Saint-Bonnet, Châteauneuf-de-Galaure, Frankreich |
| Construction Management |
H2C Architecture, Lyon, France www.h2c-architecture.fr |
| Structural Analysis | AC Structures, Rennes, France |
| Frame Structure |
ICM, Marseille, France www.icm13.fr |
| Membrane |
ACS Production, Montoir de Bretagne, France www.acs-production.com |
Model
Description
The covered recreational area consists of 6 frames with steel tube columns and welded galvanized steel I-beams covered with a double-curvature PVC membrane. The roof spans over the Foyer de Charité de Châteauneuf-de-Galaure, Drôme department school grounds.
A channel system integrated into the welded I-beams and downpipes integrated into the columns allow for unobtrusive rainwater drainage and improved aesthetic appeal.
Modeling
For the structural design, the following Dlubal Software programs were utilized: RF-STEEL EC3 add-on module for the calculation of the steel supporting structure, the RF-FORM-FINDING add-on module to determine the fabric membrane shape and determine the membrane ultimate limit state, and the RF-CUTTING-PATTERN add-on module to create the fabric cutting pattern geometry.
To begin, a general structural analysis model including the steel frame and membrane was created. The supporting steel structure was further designed taking into consideration the fabric membrane forces. Additionally, the fabric analysis and design were also carried out for the overall structure design.
In the second phase, the roof panels were separated and the fabric stress curves and changing curvatures were checked. A second, more accurate and detailed model was developed.
The modeling phases alternated with the design phases to consider the interaction of the fabric and frame.
Project Location
85 Rue Geoffroy de Moirans,26330 Châteauneuf-de-Galaure,
France
Keywords
Dlubal Software AC Structures RFEM RF-STEEL EC3 RF-FORM-FINDING RF-CUTTING-PATTERN Frame structure Membrane Find shape
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New
Not all structural elements of a real building are included in a structural model. As an example, we can look at a pipe that runs along a steel girder frame.
SHAPE-THIN determines the effective cross-sections according to EN 1993-1-3 and EN 1993-1-5 for cold-formed sections. You can optionally check the geometric conditions for the applicability of the standard specified in EN 1993‑1‑3, Section 5.2.
The effects of local plate buckling are considered according to the method of reduced widths and the possible buckling of stiffeners (instability) is considered for stiffened sections according to EN 1993-1-3, Section 5.5.
As an option, you can perform an iterative calculation to optimize the effective cross-section.
You can display the effective cross-sections graphically.
Read more about designing cold-formed sections with SHAPE-THIN and RF-/STEEL Cold-Formed Sections in this technical article: Design of a Thin-Walled, Cold-Formed C-Section According to EN 1993-1-3.
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Programs Used for Structural Analysis
Main Program
Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements
3,540.00 USD
Add-on Module
Form-finding of tensile membrane and cable structures
1,750.00 USD
Add-on Module
Generation of cutting patterns for tensile membrane structures
2,240.00 USD
Add-on Module
Design of steel members according to Eurocode 3
1,480.00 USD
