Question: Question 4 The pin - jointed steel frame ABC shown in Figure 1 has pinned supports at A and C and 5 members, as numbered.

Question 4
The pin-jointed steel frame ABC shown in Figure 1 has pinned supports at A and C and
5 members, as numbered.
The frame carries a horizontal load of 50kN as shown in the figure. All the members
have the same cross-sectional areas of 1500mm2 and have the same Young's Modulus of
200GNm2.
Calculate, using the flexibility matrix method of analysis, the horizontal reaction at
support C and the force in member DC.
Question 4 The pin - jointed steel frame ABC

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