01 December 2007

German specialist Peri continues to invest in its future by expanding production capacities and launching trend-setting innovations, while adopting cutting-edge technology to deliver optimum formwork solutions.

At the recent bauma 2007 in Munich, the company – whose formwork has helped shape numerous prestigious projects in the region – showed that it continues to have its finger on the pulse of the industry and customer requirements.
“Our stand showed visitors how they could work safer and faster with our products, as with our solution-oriented services, know-how and successfully used system equipment, which provide optimum solutions for varied construction projects each time, every time,” says a spokesperson for the company.
He continues: “Peri has recently completed a large-scale expansion of its production plant in Weissenhorn, which will result in more favourable manufacturing costs and reliable quality due to higher levels of automation.
“Also, Peri creates dimensionally accurate 3D volume units for cost-effective implementation of even the boldest of architectural visions and highly unusual construction unit geometry. Using an architect's surface model, our engineers can develop 3D volume data in order to obtain an optimised arrangement as well as design of the formwork units. Manufacture – on the basis of this geometrical data – is carried out using our new CNC wood processing facility, which mills the individual formwork units extremely accurately. From this, the Peri formwork assembly service creates complete formwork elements which can be used on the construction site similar to a system formwork.”
Some of Peri’s latest products that attracted considerable interest at Bauma was the Maximo system, which minimises imperfections in the concrete finish and creates a neat joint and tie arrangement in the walls. Thanks to a newly-developed conical tie system, the wall formwork system does not require any spacer tubes and work takes place from only one side.
“This means maximum reductions in expense and considerable savings of time and resources. The result is that through wage savings, Peri Maximo offsets the entire material costs from the onset with just eight uses per month,” he says.
Apart from the advantages of flexibility and faster shuttering times that panel formwork offer, Maximo opens up new possibilities in designing. With the BFD alignment coupler as the only connection part required for all element joints and filler timber compensations, Peri Maximo can be combined with Trio panel formwork at all times.
The new generation of panel formwork combines the feedback and findings gained over many years from previous panel formwork systems as well as offering additional advantages, according to the spokesman.
Tracing the development of the system, the spokesman says: “For almost two decades now, the Trio panel formwork with the optimised BFD alignment coupler has demonstrated its speed and versatile functionality – and with the introduction of the Trio Housing, the handling was improved even more through the ties being fitted from one side only, resulting in substantially reduced shuttering times. The new Maximo has been designed to include both these outstanding product features. In addition, the centrally-positioned tie points in all element sizes mean that concrete surfaces with attractive architecturally-designed tie and joint arrangements can also be created. Because all tie positions are filled, no unsightly impressions of PVC plugs appear on the concrete finish itself. Furthermore, the systematised and clear tie point specifications lead to error-free forming – this additionally accelerates the shuttering times.
Other innovative products from Peri include Peri Lico, Gridflex, Beamdeck, RCS rail climbing system and Variokit engineering construction set.
Peri Lico is a new lightweight column formwork for square and rectangular cross-sections with widths ranging from 20 cm to 60 cm, which helps to form columns without the assistance of a crane. With additional ties, the system makes shear wall sections up to 1.30 m long possible. All elements can be moved by hand and the connecting parts are permanently attached to the panels, which mean they cannot be lost. Lico column elements are available in heights of 0.50 m, 1 m and 3 m.
Peri Gridflex grid element slab formwork is a flexible slab formwork system complete with accessible girder grids, which sets new benchmarks in safety with high working safety levels and simple assembly, according to the spokesman. The lightweight aluminium components and pre-determined assembly sequence ensure short shuttering times. The Gridflex element is hooked in from below at one end and swivelled upwards at the other with the shuttering aid. After this, the slab props can be positioned.
“The Gridflex girder grid formwork is extremely flexible as filler areas are formed in the system itself and adaptation to the floor plan is carried out by simple telescoping with the compensation and standard panels. Columns can also be shuttered without any problems, with the panel grid system allowing safe access for laying form-lining of choice,” he says.
Peri Beamdeck is a new beam slab formwork made of aluminium with integrated drophead to allow early striking. It increases flexibility and simple handling and reduces on-site material requirements.
The spokesman adds: “Very few different individual parts with only three system components ensure fast forming as well as easy handling and logistical operations. Depending on concrete surface requirements, the form-lining can be freely selected.
“The design of the girder grids can be easily and individually optimised according to the required slab thickness. Through the possibility of exchanging main beams for longitudinal and lateral compensation, the system can be adapted to all ground plans. The generously-sized prop grid arrangement of 2.10 m by 2.10 m results in less prop requirements and even slabs with up to 10-degree inclinations can be suitably formed with the specially-designed drophead,” he explains.
Peri RCS rail climbing system is a new modular construction system for different climbing applications such as a formwork scaffold complete with carriage or as climbing protection panel that provides safe working areas for floors under construction.
The spokesman comments: “The RCS climbing protection panel provides completely shielded working areas for those floors actually under construction. It offers protection against the wind and weather resulting in increased productivity. At the same time, the exterior can be used as highly visible advertising billboards.
“The RCS formwork scaffolding with carriage and self-climbing device provides a comprehensive safety concept through the roller bearing-mounted carriage with a self-locking mechanism and the high, totally enclosed protection panel. The working platform is already attached to the formwork by means of hinged climbing shoes for the first casting segment. In both cases, the climbing scaffold is securely connected to the building by means of the climbing shoe, also during the climbing procedure.
“In order to save crane time, the Peri RCS rail climbing system can be partially retrofitted at any time with mobile self-climbing devices, which reduces on-site material requirements and makes crane-independent climbing cost-effective even for smaller building heights.”
With the new Variokit engineering construction set, many civil engineering formwork tasks can be easily and economically realised, he continues, for example, in bridge construction as a formwork carriage for steel composite bridges and as a cantilevered parapet carriage as well as a movable load-carrying system in tunnel construction. In addition, through the numerous connection possibilities, cost-effective geometrical and load-bearing adjustments can be achieved.
“Modular construction systems with standardised individual components increase the utilisation rate and reduce on-site material requirements. The cost-effectiveness of formwork solutions is significantly increased through the use of rentable system elements,” he adds.

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