The Drawing Office (Chesterfield) Ltd

Steel, glulam and concrete retail outlet

The creation of Marks and Spencer's largest store outside London, employing a highly sustainable and near carbon neutral approach, ulitising 1200m3 of glulam timber and over 1000 tonnes of structural steelwork. The new flagship store extends to almost 200,000 square feet on two floors, with car parking for 950 cars.

Complexity of the double curved roof

Tekla was used to over come the complexity of the double curved roof setting out, which was formed using a double radiused curved roof in elevation but then rotated 45 degrees on plan. The main glulam roof sections were supported off four 273mm circular hollow section struts with a single 56 dia. pin at either end. The main 900mm deep glulam members were connected to 20mm thick central connector plates with 96 bolts each 30mm in diameter per connection.