Commentary — Appendix 5 Evaluation of existing structures
C-5.55.5 evaluation report
PDF page 699 · AISC 360-22
Extensive evaluation and load testing of existing structures is often performed where appropriate documentation no longer exists or where there is considerable disagreement about the condition of a structure. The resulting evaluation is only effective if well documented, particularly where load testing is involved. Furthermore, as time passes, various interpretations of the results can arise unless all parameters of the structural performance, including material properties, strength, and stiffness, are well documented.