Installation of Retractable Raked Seating System

Raked seating Value of contract: £50,000 - £60,000 As part of an overall upgrade to the facilities for performances at the Municipal Buildings, Dorchester Town Council wishes to install a retractable raked seating system in the Corn Exchange. The specification would be to provide and install a high quality recessed system providing seating for a minimum of 144 audience members on the raked system itself, with options to provide further seating in front of the rake which can be used as required and stored separately when not needed. The system should provide upholstered individual seats (as opposed to bench seating), be power-operated and partial opening must be possible to allow flexible use of space. Costings for fascia panels, storage trolleys, rails and any other ancillary items must be included. Layout drawings and information on point and wheel loadings for the system should be supplied. Standards to be complied with: Structural standards and Design Guidelines: BS6399 Design loadings for buildings BS5950 Structural use of steelwork in buildings BS4360 Specifications of weldable structural steel EN 10147 Galvanised structural steel Steels to comply with: BS EN 10147 Grade S350GD+Z/ZF (390N/mm2) Front & rear beam sections Other components comply to one of following: BS EN 10025:1993-S275 BS EN 10219-1:1997 S355JsH BS 970 Part 3:1991 070M20 Upholstery fabric and foam comply with... BS EN 1021-1:2006 (cigarette) BS EN 1021-2:2006 (match) BS 5852: 2004 Section 4 Ignition Source 5 BS7176: 2007 Medium Hazard. The under structure is to consist of steel components, welded and/or bolted together. NB: columns to incorporate adjustable cantilevers. Fully welded system will not be considered. Guidance system is to be of all steel construction. Platform to platform interface to have nylon pads in row-to-row contact area, to minimise noise when the unit is partially loaded. Contact with building floor to be with hard polyurethane tyre nylon wheels, with needle roller bearings, minimum 4 per column. Guarantee period for retractable unit must be minimum of 10 years. If you are interested in tendering for this project please complete the Expression of Interest form. Any queries please contact Mark Tattersall, Artistic Director at Dorchester Arts T: 07875 634173 Email: mark@dorchesterarts.org.uk