A system may measure displacement in an architectural brace that absorbs deformation inducing energy. The architectural brace may have a core member with first and second ends attachable to architectural features, and an intermediate portion between the first and second ends. The architectural brace may also have a buckling restraining assembly that encases the intermediate portion to resist buckling of the intermediate portion. The system may have a first coupling with a first attachment feature securable to the first end of the core member, and a second coupling with a second attachment feature securable to the second end of the core member. The second coupling may be displaced from the first coupling by a displacement. Further, the system may have a sensor that measures a plurality of changes in the displacement occurring over a period of time. The sensor may provide measurement data indicative of the changes.