|
| | | | |
|
 | | LINDAPTER STEELWORK FIXINGS SIMPLIFY CONSTRUCTION OF RAMPS FOR AUSTRALIA'S LONGEST TUNNEL | | | Lindapter International | | 25/09/2007 | | | Mount Druitt, Australia and Bradford, UK, September 25, 2007 --- Lindapter steelwork clamps are simplifying the construction of the on/off ramps needed for the Brisbane North South Bypass Tunnel project. When completed, this 6.8 km long construction will be the longest tunnel in Australia.
The piers that support the ramps are being made by the formwork and scaffolding specialists PERI Australia, and consist of a headstock supported by two columns. The headstocks are fabricated in situ, by pouring concrete into pre-assembled formwork.
The formwork is positioned into place on top of the columns with the aid of some simple supporting steelwork. Bolt-on Lindapter clamps were selected as the means of assembling this girder-based supporting structure because they attach without the need to drill holes. The clamps may be moved easily, and this flexibility is critical, as the pier length and column spacings vary throughout the course of the ramps. As soon as the concrete gains enough strength, the formwork and support steelwork is stripped away, and adjusted to the dimensions needed to fabricate the following pier.
"Lindapter clamps have helped us create very cost-effective tooling for fabricating the piers required on this major project," says Fred Dagandan, Design Engineer with PERI Australia Pty Limited. "Their ease of assembly, disassembly and adjustment, combined with special flexibility we have built into our formworks, means that we can quickly recycle. On this project, a total of some 60 piers are being constructed using just two sets of formworks."
M20-bolted Lindapter clamps were used on the project, to support the large loads required during construction. During the fabrication of a pier, the total vertical load of the support steelwork, formwork, steel reinforcement, and fresh concrete is approximately 100 tonnes.
A combination of conventional and high-friction Lindapter clamps are used to assemble the steelwork. The M20 high friction clamps support safe working frictional loads of 16 kN per pair of bolts, and tensile loads of 26.25 kN per bolt. During the course of this project, each Lindapter clamp will be reused approximately 30 times.
Lindapter has been producing advanced fixing products that offer cost-effective alternatives to traditional methods for more than 70 years. Key market sectors include structural engineering, civil engineering, building services, process plant/offshore, mechanical handling and transportation. Initially recognised as the manufacturer of the Lindapter malleable iron hook-bolt adapter, the company has diversified to cover all aspects of fixing to or suspending from structural steelwork. As well as cavity fixings, the Lindapter range includes steelwork fixings, support fixings, floor fixings and rail fixings.
More information: www.lindapter.com
Background information
PERI. With € 920 million in revenues in 2006, PERI is one of the world's largest manufacturers and suppliers of formwork, shoring and scaffolding systems. In addition to its innovative products, PERI offers engineering, planning, special software, rental service and logistics support. With numerous innovations during the past 37 years, PERI has been able to sustain a constant rate of growth in the formwork and scaffolding industry. http://www.periaus.com.au
Brisbane North South Bypass Tunnel or RiverCity Motorway.
The North-South Bypass Tunnel, also known as RiverCity Motorway, is a $3.2 AUD billion toll road being built underground between Woolloongabba and Bowen Hills in Brisbane, Queensland, Australia. Dual-lane, twin tunnels will bypass 18 existing sets of traffic lights, and provide an additional Brisbane River crossing.
The tender was won by RiverCity Motorway Limited, who contracted the design and construction of the tunnel to the Leighton Contractors and Baulderstone Hornibrook Bilfinger Berger Joint Venture (LBB JV). This joint venture unites the infrastructure expertise of Leighton Contractors and Baulderstone Hornibrook and the tunnelling experience of Bilfinger Berger.
More information: http://www.rivercitymotorway.com.au/
Photos: RiverCity Motorway's photo library of the project: http://www.rivercitymotorway.com.au/Pages.php?title=photo_library&page_id=34&parentid=119 | |
|
| | View similar articles:
Balcony Systems , Innovations , Steel , Housebuilding , Flats & Apartments , Other , Care Residential , Hotels , Restaurants , Other , Sheds , Laboratories , Other , Churches & Places of Worship , Other , Hospitals & Healthcare , Leisure Facilities , Sports Facilities , Transport , Civil Engineering
| | |
| | | |
|
 | People who viewed this article were also interested in |  | |  |
|
| Other articles from Lindapter International | | | |
|