Wembley Stadium is afootball stadium inWembley, London, England, which opened in 2007, on the site of the originalWembley Stadium, which was demolished from 2002-2003. The stadium hosts major football matches including theFA Cup Final and home matches of theEngland national football team. It was designed byHOK Sport andFoster and Partners, it includes a partially retractable roof and the 134-metre-high (440 ft) Wembley Arch. The stadium was built by Australian firmMultiplex at a cost of £798 million. This special design of the roof structure has made the stadium a perfect place with almost no disturbance to view. (Wembley_Stadium, 2016).

Figure 1: The Wembley Arch

Task 1

Following structure is a 2- dimensional arch which can be used in a similar application as above. The joints all lie on radial lines subtending angles of 15° as indicated, and the curved members act as two-force members. Distance DC = OA = DB = R.

1.1 How do you analyze the curved members

1.2 Determine the reactions at the points A and B

1.3 Determine the force in member DG and FC of the compound truss.