Computer study of arch with a continuous floor girder. Repeat part (b) in problem P6.33 if a continuous girder with A = 102.5 in² and I = 40,087 in.⁴ , as shown in Figure P6.33, is provided to support the floor system. For both the girder and the arch, determine all forces acting on the arch joints as well as the joint displacements. Discuss the results of your study of P6.32 and P6.33 with particular emphasis on the magnitude of the forces and displacements produced by the 48-kip load.

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(20) (19) (18) 48 kips (16) (15) continuous girder (17) 10 @ 36' 360' (14) (13) (10) (12) 120