Highest architectural concrete requirements for columns and walls cost-effectively fulfilled with system formwork

Toulouse-Blagnac Airport, France

With six million passengers annually, Toulouse-Blagnac in southern France is the country´s fourth biggest airport – the headquarters of the European Airbus Group is also based here. In Toulouse, the end assembly of the new A380 wide-bodied aircraft is carried out which took off on its maiden flight from Toulouse-Blagnac in April 2005.

Due to the increase in the number of passengers, the airport operator is investing around 200 million euros in an extensive expansion and modernization programme. One of the most important elements of the building work, the new check-in facility – Hall D – has been under construction since May 2006 and should be operational at the beginning of 2009. The 40,000 m² large complex contains 24 check-in desks and 13 departure gates with eight direct boarding points. These so-called ramps are arranged in a semi-circular pattern at the end of the terminal.

The project is being developed by a consortium which is comprised of three French construction companies, with formwork know-how and efficient system equipment being supplied by the formwork and scaffolding specialist, PERI. In addition to the TRIO panel formwork for those walls without any special architectural concrete demands, the variable VARIO GT 24 girder wall formwork system in particular provides the basis for realizing all demanding geometrical and surface requirements.

The architectural design calls for a special joint and tie arrangement for the visible reinforced concrete walls. For this, pre-assembled ready-to-use VARIO formwork units are being used whereby the plywood formlining joints have already been accurately bevelled at the PERI assembly facilities along with the exact positioning of the anchor cones plus the additional blank cones. Through the PERI formwork solution together with optimal concrete quality and processing, the contractors are in a position to easily achieve the best results: structurally-designed fairfaced concrete walls featuring fine triangular-shaped pilaster strips and a uniform tie pattern.

In order to be able to construct the up to 9.72 m high and 70 cm thick wall sections without ties, the wall formwork elements are effectively strengthened by means of rentable system equipment. Versatile usable RCS climbing rails as vertical walers and high load-bearing HDT main beams as lateral waling provided here a safe transfer of load in the laterally positioned anchoring points – located outside of the up to 5.44 m long concrete wall. RCS and HD are variable construction kit systems for a wide range of applications – PERI RCS (Rail Climbing System) is the new, modular rail climbing system and HDT main beams, together with HD 200 heavy-duty props, form extremely stable main beam areas for use in road construction projects.

The semi-circular positioned reinforced concrete columns in the distribution structure for the ramps exhibit a triangular-shaped ground plan with 1.30 m leg lengths. The PERI concept, on the basis of VARIO GT 24 wall formwork, allows the columns to be constructed in one pour for the complete height of almost twelve metres – likewise, without any visible tie positions. Both of the formwork sets being used each consist of only two individual elements so that not only can striking and shuttering be efficiently carried out but also moving with the crane. This means site crews are in a position to cost-effectively construct one column per day with each featuring an excellent architectural concrete finish.

Project Details:
Contractors: G.B.M.P., Tournefeuille
Socotrap, Roques-Sur-Garonne
G.C.C., Toulouse
Field service: PERI Ste Livrade and Meaux, France - www.peri.fr

PERI was founded in 1969 and is today one of the leading providers of formwork and scaffolding systems. Along with the headquarters in Weißenhorn, Germany, the company has 45 international subsidiaries and 100 stock yards around the world. The company has over 4.500 employees of which 850 are engineers. 2006 revenues was 920 million Euros.

PERI GmbH
Formwork Scaffolding Engineering
P.O. Box 1264
89259 Weissenhorn
Phone: 49/ 73 09/ 9 50-0
Fax: 49/ 73 09/ 9 51-0
info@peri.de
www.peri.de

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PERI Editorial Team
Phone: 49/ 73 09/ 9 50-1 18
Fax: 49/ 73 09/ 9 51-1 18
redaktion@peri.de

This release was published on openPR.