A frame ABCD is supported by a roller at A and is on a

A frame ABCD is supported by a roller at A and is on a hinge at C as shown below:

The reaction at the roller end A is given by

The loads are symmetrical w.r.t to C.
∴ The will not be any horizontal force on A.
Theoretically, if we take moment about C.

H_A × L ×	PL	=	PL
	2		2

∴ H_A = 0