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Kneebone & Beretta Consulting Engineers Pty Ltd, ABN: 63 483 315 179
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Kneebone, Beretta & Hall Pty Ltd, ABN: 36 822 442 203
  RESCRETE . . . SOLUTIONS IN PRECAST


At Henry Street Penrith, precast construction was the quickest, cheapest and best looking solution.

Commercial Building:
Henry Street, Penrith NSW.

Builder / Developer:
Colpani Constructions Pty Ltd

Architect:
Building Environments Pty Ltd

Engineer:
Kneebone, Beretta & Hall Pty Ltd

Precaster:
Rescrete Industries Pty Ltd

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The Rescrete Total Precast Concept. Quick, low cost, great-to-look-at, low rise building solutions!

A new commercial building in Henry Street, Penrith NSW illustrates fast and economical building with precast concrete. The 1,600 sq. metre development, a two story commercial building with basement car parking, presented the builder with a challenge. The brief called for a commercial building with high quality, low maintenance wall finishes, large column free floor areas, rapid construction time and of course, competitive pricing. The solution supplied by Rescrete Industries Pty Ltd and designed by consulting engineers, Kneebone, Beretta & Hall Pty Ltd called for the use of precast concrete from the basement, to the top of the building.

"The design concept revolved around a solid looking facade at the lower level, with light weight less complicated upper level detail. Working to a tight building programme, we wanted to minimise on site construction and maintain a high level of quality. The Rescrete precast system provided a solution to design, engineering, planning and time pressures. With the right team, the built result is a successful one," says Carlo Colpani of Colpani Constructions Pty Ltd. Precast has been used as the key material for walling, flooring and structure, including the following components:
 
  • Precast hollowcore basement retaining walls
  • Precast lift shaft walls
  • Precast beamshells and hollowcore floor planks
  • Precast load bearing polished architectural walls
  • Precast hollowcore wall panels

Precast basement retaining walls
Basement retaining wallLocated in-between galvanised steel columns, the 150mm thick hollowcore wall panels spanning four metres provided the speed of erection and simplicity to allow the builder to get the structure out of the ground quickly. Galvanised steel columns were installed before any excavation had commenced. The hollowcore walling was located between the flanges of the steel columns and allowed to drop down as material was excavated from underneath.

Precast lift shaft ready for fit outPrecast lift shaft walls
Erected in one day the 200mm thick full height (three floor) wall panels provide a fully braced and enclosed lift shaft ready for fit out by the lift supplier.

Precast beamshells & Hollowcore floor planks
Allowing spans of up to twelve metres the 300mm thick hollowcore floor planks supported by precast beamshells decreased the number of columns required and increased the flexibility of the floors below.
    The beamshells and floor planks were erected at the same time, with the builder providing propping for the beamshells.The beamshells are conventionally reinforced precast U-shaped shells that act as permanent concrete formwork with bottom steel and shear reinforcement cast in. They have column block outs formed for column reinforcement tie-in.
    The beamshells contained up to 60% of the beam reinforcement required thus reducing the on-site handling and placement of insitu reinforcing steel. A beamshell depth of 400mm was used for this application, however beamshell depth and reinforcement can be varied to suit a wide range of applications.
    Immediately after placing the beamshells, the hollowcore floor planks were erected and provide an instant working platform. On this project 200mm and 300mm thick planks were used, giving column free spans of up to twelve metres. Once the beamshells and planks were erected, all the builder needed to do was place the balance of the beam steel and the reinforcing mesh for the slab, then pour an 80mm structural topping layer along with the beams.
    Without the need for formwork for the beams or the floor, the site remained cleaner and uncluttered, with work still able to be carried on under the floor area. Service trades moved in immediately.

Precast load bearing architectural panels
Loadbearing preglazed facade - polished both sidesIncorporating a high quality polished reconstructed granite finish to both internal and external faces, these external facade panels not only look good but also provide column free support for the first floor. These dual-purpose panels offer substantial savings in structure and long-term maintenance costs.

First floor hollowcore planksHollowcore wall panels
Used on the rear elevation, these panels offered a cost-effective solution to providing pre-finished solid fire-rated construction.

Conventionally reinforced precast beamshellsHollowcore floorplanks provide an instant working platform

Rescrete... solutions in precast!

Rescrete


RESCRETE INDUSTRIES PTY. LTD.
www.rescrete.com.au

Enquiries: Riverstone office
Tel: (02) 9627 2666  Fax: (02) 9627 5161

PO Box 121 Riverstone NSW 2765

NPCAA Member

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