$1$ Flexibility Method. A concrete wall supports a steel frame, as shown in Figure $1.$ The

steel frame is rigidly connected to the wall at $C$ and rests on the ground with a roller

support at A resisting horizontal forces. The beam and column are rigidly connected at $B.$

The steel frame supports a uniformly distributed wind load of $7k\frac{N}{m}$ along member $AB.$

$I_{BC}=2I_{AB}.$ E is constant for all members. Use the flexibility method to solve the problem.

$(15$ pts$).$

A Write the compatibility equation for the system. Use the horizontal reaction at $A$ as

the redundant force.

B Determine the reactions at A and $C$ using the flexibility method.

Figure $1$ Frame for the force method

please show step by step clear solutions