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| Formwork and scaffolding systems for rapid construction progress  For construction of the new residential complex at the renowned National University of Singapore, the very latest formwork and scaffolding systems are ensuring very fast construction progress. PERI engineers combined MAXIMO wall formwork, the PERI UP scaffold system and RCS rail climbing system to create a complete solution – a projectspecific design to meet the high construction site requirements. The National University of Singapore (NUS) has over 30,000 students and is one of the leading universities in South-East Asia as well as being ranked among the best 35 universities worldwide. Currently, a residential complex comprised of three high-rise buildings is being constructed with 24 and 25 floors respectively for the over 7,000 employees.For this, engineers at PERI Singapore developed a cost-effective formwork and scaffolding solution; in addition, PERI provided continuous technical and logistical site support which ensured safe and efficient building progress. In order to be able to maintain the tight schedule, the Tiong Seng construction company have been working with the very latest formwork and scaffolding systems from PERI. Walls and columns are formed using MAXIMO panel formwork while the slabs have been realised with SKYDECK panel slab formwork. The RCS rail climbing system provides crane-independent climbing sequences – and, with the help of the PERI UP scaffolding kit, safe working platforms and optimal access technology have been created. For the first time in Singapore, walls and rectangular columns have been formed using MAXIMO panel formwork. The MX tie technology saves a great deal of time and resources because installation requires only one man and takes place from one side. Furthermore, the conical anchor does not need any spacer tubes nor cones. One extremely positive side-effect: the construction site crew achieves an attractive concrete surface complete with a uniform joint and tie pattern. The up to 16.50 m high wall sections and rectangular columns – which stretch over five floors – are constructed in one pour using MAXIMO, a system that can be flexibly adapted to match the different building dimensions. For forming, reinforcement work and concreting, PERI UP reinforcement scaffolding is used. Requiring no ballast, these are extremely stable and can be moved to the next place of use on the construction site with the crane as complete units. In order to adapt the working scaffold to the different heights, extension units can be pre-assembled on the ground and subsequently installed or kept in temporary storage. The PERI UP Rosett Flex modular scaffolding system with the metric basic grid and 25 cm wide UDI industrial decking forms a suitable basis for this. Together with the Stair Tower 75, staircase towers are formed which allow access to the RCS working platforms. Assembly heights can be flexibly adapted through 50 cm increments to suit the respective building geometry. Together with the RCS rail climbing system, the MAXIMO wall formwork forms moving units that are securely connected to the structure at all times. As a result, climbing takes place quickly and safely – also crane-independently with the help of mobile climbing hydraulics. PERI engineers optimally adapted the RCS climbing solution to match the existing geometry with small wall spacings. Thus, most of the formwork units are suspended on a T-shaped gallows and can be easily moved. The concreting cycle height for the standard floor is 3.15 m. write your comments about the article :: © 2011 Construction News :: home page |