Flere bilder 
|
RONDO 1 Building Complex, Warsaw, Poland
Optimal PERI formwork solution providing complete safety and fast construction progress
The RONDO 1 construction project in Warsaw is representative for the ambitious course of development which Poland is currently following in order to become a successful member of the European Union. The high-rise building, complete with auxiliary structures and underground parking facilities, was designed by the AZO firm of architects together with Owings & Merill. Upon completion, the building will provide the Warsaw financial centre with a new, exciting image and offer future tenants office space of the highest standard. The 40-storey main structure, with a height of 194 metres, is due to be finished at the end of 2005. Architectural highlights of the office block are three external, transparent elevator cores which contain a total of 18 lifts as well as the so-called sky bridges which serve as access points to the various levels.
One of the most important factors which influences the cost-effectiveness for the implementation of projects this size is matching the construction method to the design of the structure.
The contractors, HOCHTIEF Polska Sp. Z. o.o., decided in favour a PERI formwork and scaffolding solution. Experienced application technology engineers came up with a very clear-cut concept utilising the PERI ACS self- climbing technology for the constructively-braced building cores and retaining walls as well as using the aluminium PERI SKYDECK panel slab formwork for constructing the massive slabs. SRS circular column formwork for the reinforced concrete columns together with PERI CPP, as combined climbable guardrail and building enclosure system the rounded off the customised formwork package.
|
| PERI system, brukt på byggeplassen |
SKYDECK dekkeforskaling
VARIO GT 24
SRS Rundsøyleforskaling i stål
TRIO 330
|
 |
Climbing without crane on the core and retaining walls with PERI ACS
Apart from the fundamental advantages of the PERI ACS system (Automatic Climbing System) for climbing the VARIO girder wall formwork used here crane-independently from one concreting cycle to the next, construction progress was also optimised due to the fact that PERI engineers tailored the use of appropriate individual systems or combined them if required for the different construction units. In the area of the building´s core walls, site crews are using the ACS-P (platform) version which is equipped with a generous working surface. For the retaining wall sections, the ACS-R (regular) system is being used which serves as self-climbing scaffold for the VARIO girder wall formwork.
Both versions are moved from one storey to the next with the help of the ACS 100 hydraulic climbing mechanism – this forms the core of the ACS system. It allows the system to climb without the need of a crane by means of 100 kN lifting power capacity. Thus, effective climbing speeds of 0.3 m/min are possible. Due to the almost noiseless climbing hydraulics, its use is also possible the equipment outside of standard working hours without annoying residents of surrounding residential areas. |
|
PERI ACS is the only self-climbing formwork with officially- approved anchoring
In Germany, anchoring for scaffold requires compulsory approval according to the official building regulation list. This means that time-consuming and expensive verification procedures are required for each individual case with regards to all non-approved anchor positions. The situation is complicated even further as, up-to-now, no recognized calculation method exists which can show sufficiently accurate proof.
The high permissible loads which are possible using PERI anchors, are based on extensive and detailed load tests carried out where reinforced concrete blocks weighing up to five tonnes were destroyed in numerous test runs. For this, a specially-made load machine was built comprising of PERI formwork components. With the help of these measures, load diagrams were developed which allows the user to maintain the required verification in the simplest way possible! Therefore: The official approval given to PERI climbing cones for anchoring the scaffold guarantees a high level of safety to the user and saves on the cost of expensive individual verification! |
|
Easy way for forming slabs
The very experienced HOCHTIEF site crews are using PERI SKYDECK to form each individual storey slab. This slab formwork system is made of aluminium which results in lightweight individual components guaranteeing easy and almost effortless setting and striking operations. The constant, simple and easy to understand assembly grid – props, main beams and panels – is child´s play for formwork crews and is an important factor in accelerating shuttering times.
1,800 m² SKYDECK materials have been provided for the construction of the slabs for the 40 storeys. Altogether, a gross floor area of around 100,000 square metres will be built.
Safe and productive working conditions despite large building heights
As with the construction of the Gallileo Building in Frankfurt or the 146 m high Uptown office complex in the Bavarian state capital, Munich, PERI has also fulfilled the requirements in this project regarding the enclosure of the upper floors undergoing construction using a very manageable solution whilst simultaneously providing extremely safe working conditions.
The top three floors each time are completely enclosed by PERI CPP climbing protection panels. The solid, 21 mm thick plywood facings prevent falling and give reliable protection against wind and weather. The climbing protection panel is permanently and safely connected (even during climbing operations) at the front of the slabs by means of climbing rails and shoes.
Climbing takes place in cost-effective units which are, of course, matched to the crane capacity. Thus secure and, at the same time, comfortable working conditions are created, and no objects, such as tools or debris can fall off. All work on the external facade can then follow quickly which accelerates the construction progress. Site crews are also protected against falling and the vagaries of the weather. This leads, in the end, to a tremendous increase in productivity. |
|
Completion: on schedule and cost-effective
Careful selection of the formwork and scaffold systems as well as perfect on-site co-ordination and implementation has resulted in cost-effective construction of a complete floor in only one week. This means that the very tight schedule is more than feasible!
The site management team is also very satisfied with the PERI service. According to the site manager, Dariusz Kolasa: “I´ve been involved in the reinforced concrete construction business for over ten years and we´ve built many structures with a wide range of requirements during this time. PERI formwork systems have always proved to be very efficient and universal in their use. The PERI self-climbing technology used in this project has also convinced me because the system works reliably, crane-independently and is very safe. In connection with the extremely professional technical service and the reliable logistical operations, PERI has provided optimal support for the realization of the Rondo project!” |
|
| Contractor: |
HOCHTIEF Polska Sp. z o.o. |
| Field Service: |
PERI Poland / Warsaw - www.peri.pl.pl |
| Sales Engineer: |
Daniel Charubin |
| Technical Support, Warsaw: |
Pawel Gulak, Piotr Ignatowski, Wojciech Tomaszewski |
| Technical Support, Weissenhorn: |
Gabriele Classen, Uwe Conradt |
|
Avdeling:
|
PERI Polska Sp. z o.o., Poland
|
|
Press Release March 2005
|
|
