Case study ELUZ Building in Croissy-Beaubourg

Case study: ELUZ Building in Croissy-Beaubourg, France SP035a-EN-EU

Case study: ELUZ Building in Croissy-Beaubourg, France

An industrial single storey building with very long span portal frames, located in the suburbs of Paris. The portal frames use slender, light weight, fabricated I sections for economy.

General internal view of the completed building, before installation of the racking system

Contents

1. The achievement 2

2. The structural system 2

3. Project team 4

Case study: ELUZ Building in Croissy-Beaubourg, FranceC

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1. The achievement Construction of a single storey building covering a 7000 m2 area without any internal

columns, in order to accommodate a racking system to store ELUZ products.

Span of the main frames: 84 m

Height of the building at the top of the roof: 15 m.

2. The structural system The steel structure is designed in accordance with the building system that the ASTRON company has developed:

Support of the vertical loads and the lateral stability are achieved by single span, portal frames with pinned column bases. The columns and the rafters are fabricated by welding. The depth of their section, the thickness of the flanges and of the slender webs are non-uniform, in order to use the strength of the steel material as efficiently as possible.

Columns and rafters are fabricated in the workshop and delivered on site in 10 to 15 metre long segments. These segments are connected on site by bolted end plate connections.

S355 steel was used for the flanges, the webs and the end plates of the rafters and columns. Grade 10.9 bolts were used for the column/rafter connections and the rafter splices. The flanges have sufficient thickness to be class 3 elements; the webs are class 4 elements.

In the case of the ELUZ building, the depth of the section at the rafter/column connection is about 1,9 metres : the dimension of this connection can be appreciated in Figure 2.1.

The horizontal actions of the main frames on their foundations due to the vertical loads (self weight, snow, etc.) are balanced by tension elements placed under the concrete slab; the connection of a tension element on a column foundation is shown in Figure 2.2. This arrangement reduces foundation costs.

Longitudinal stability is achieved by cross bracing in the roof and side walls. The diagonal members have circular sections and are connected at the webs of the frame components by a special device, just visible at the top of Figure 2.1. Circular hollow sections have also been used for the horizontal compression members.

The purlins and side rails are Zed cold formed members. The purlins are made continuous by overlapping the connections over the main rafters. The steel used for purlins has a yield stress of. 390 N/mm2.

The scale of the construction and the use of pre-assembly at ground level to improve the speed and safety of construction may be seen in Figure 2.3.


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Figure 2.1 Rafter / column connection of a portal frame ( depth of the fabricated beam is 1,9 m)

Figure 2.2 Tension element connecting the two column bases of a portal frame


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Figure 2.3 General view of the structure during erection

3. Project team Client: ELUZ

Architect: A. Hirselberger

Structural engineer: ASTRON

Steel construction company: Fabrication: ASTRON Erection: SADEL

Year of erection: 2005


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Quality Record RESOURCE TITLE Case study: ELUZ Building in Croissy-Beaubourg, France

Reference(s)

ORIGINAL DOCUMENT

Name Company Date

Created by Patrick Le Chaffotec CTICM 19/12/2005

Technical content checked by Alain Bureau CTICM 19/12/2005

Editorial content checked by

Technical content endorsed by the following STEEL Partners:

1. UK G W Owens SCI 30/8/06

2. France A Bureau CTICM 30/8/06

3. Sweden B Uppfeldt SBI 30/8/06

4. Germany C Müller RWTH 30/8/06

5. Spain J Chica Labein 30/8/06

Resource approved by Technical Coordinator

TRANSLATED DOCUMENT

This Translation made and checked by:

Translated resource approved by:


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Wrapper Information Title* Case study: ELUZ Building in Croissy-Beaubourg, France

Series

Description* An industrial single storey building with very long span portal frames, located in the suburbs of Paris. The portal frames use slender, light weight, fabricated I sections for economy.

Access Level* Expertise Public

Identifiers* F:\STEEL4\SP035a-EN-EU.doc Filename

Format Microsoft Office Word; 6 Pages; 3105kb;

Resource Type Case study Category*

Viewpoint Client, Architect

Subject* Single storey buildings Application Area(s)

Created Date 30/08/2006 Dates

Last Modified Date 15/02/2006

Checked Date

Valid From

Valid To

Language(s)* English

Author Patrick Le Chaffotec, CTICM Contacts

Checked By Alain Bureau, CTICM

Approved by

Editor

Last Modified By

Keywords* Portal frames, Industrial buildings, Single-storey buildings

See Also Eurocode Reference

Worked Example(s)

Commentary

Discussion

Other

Coverage National Applicability EU

Special Instructions


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Case study ELUZ Building in Croissy-Beaubourg

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