Construction Methodology for Telescopic Seating System

By | Jun 15, 2019
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This method statement is intended to outline the activities and the method for the Telescopic seating for auditorium or stadium seats, also known as retractable seating system.

All activities will be carried out in accordance with the contract details and in full compliance to the contract specifications and project documents.

All work within the rights-of-way of the local municipal governments will be done in compliance with requirements issued by those agencies.

Following is list of tools necessary for the work:

  • Drill Machine
  • Vacuum
  • Air compressor
  • Set of screw drivers
  • Set of wrenches
  • Measuring Tape
  • Hammer

Before commencing any works, all employees will attend a site safety induction training to ensure all safety measures are understood and implemented and to cover specific procedures in case of emergency.

If necessary, practical training exercises will be conducted on escape routes, signage, evacuation and rescue.

Sequence of Work for Telescopic Seating Installation

Obtain necessary clearances and approvals from Engineers including MEP clearance prior to start of work

Beam and Mechanism Layout: Layout the correct sized beams in deck using job package drawings.

Unlock Bar layout : Layout the correct unlock bars on the desk based on mechanism spacing using job package drawings.

Insert the correct length unlock bar onto one of the unlock levers. Take the other end of the bar and slide it over to opposite hand mechanisms unlock lever.

Mechanism Attachment: This will ensure the chair are located within the allowable seating area. The allowable seating area is, the distance either between aisle steps, from an aisle to the end section/bank or the total section/bank length. In simplest terms you will want to centre the amount of chair within that allowable seating area.

Joint shaft layout and connector installation: Install the joint shaft connector to one side of each mechanisms only, working from left to right on the desk.

Mechanism Attachment: This next procedure will locate the beams and attach the mechanisms. This will ensure the chairs are located within the allowable seating area is the distance either between aisle steps, from an aisle to the end section/bank or the total section /bank length

Beam Installation: Lay the beam on the mechanisms, rotate the clamp upright. Make sure there is a gap of ¼ “between adjacent beams to allow for operating clearance.

Armrest Installation: Armrest assemblies will be located at the “aisle end “ of the beam and between each chair module throughout the row.

System Installation: Layout the tablet assemblies on the desk using the job package drawings.These tablet assemblies are handed and will be shown as right hand or left hand operation.

Chair Module Installation: With the armrests installed at the proper center to center dimensions, the chair module installation can begin. Side chair modules over the back portion of the beam between two armrests. Rotate the chair module forward and up to snap the module into initial position on the beam .

Operation of chair units: Lower and raise the chair units to ensure proper operation throughout the range of motion. While grabbing hold of chair module back, depress your foot onto the manual unlock bars near the centre of the chair. Pressing down on the unlock bar will raise and unlock the chair unit.

Mechanism Spring Adjustment: In some instance the spring tension in the mechanism, compared to the weight of the chair modules is too great.

Chair Unit Adjustment: Adjust any front to back motion from chair units, by adjusting this double nut system with a 13mm open and wrench at each beam attachment point. The maximum allowable front to back motion at the top of the back, should be limited to 5/8”

Dust Cover Installation: Once mechanism spring tension is working to satisfaction, dust covers can be installed. Dust cover come in four sizes 16” ,22”,34” or 44” to match the joint shaft spacing use the information from the “ spanner layout “ to determine the proper cover.

Beam and Cap Installation: The end caps are installed in the end of aluminium beams with the use of a soft blow hammer to tap the end caps into position. These end caps at the end of row location only, and are not installed between adjacent beams.

Seat Numbers/Row Letters/Donor Plates/Graphic Logo: Lay out the seat numbers, row letters and donor plates per job package drawings. Seat numbers or matching color “blank plates” will be located in the recess on the seat . Row letter will be located on either the armrest or the beam end cap. Donor plates are also available and will be located on the armrest.