Question: 1. (a) Determine the reactions and all bar forces of the three-hinged, trussed arch in Figure P6.27 for the following cases: Case A: Only the 90-kN force at joint D acts. Case B: Both the 90-kN and 60-kN forces at joints D and M act.
(b) Determine the maximum axial force in the arch in Case B.
![563_6.27.png](https://secure.tutorsglobe.com/CMSImages/563_6.27.png)
2. Establish the funicular arch for the system of loads in Figure P6.28, if the maximum allowable compressive force in the arch is 85 kips.
![965_6.28.png](https://secure.tutorsglobe.com/CMSImages/965_6.28.png)