Should you cut post tension cables?

• A. Yes
• B. Only with written authorization
• C. No
• D. Only in an emergency

Answer: (C)

Post-tension cables store large tensile energy to keep concrete members in compression. Cutting them releases that energy suddenly, which can cause rapid cracking, spalling, or even collapse, and can send tendons snapping with dangerous force. Because of this, there isn’t a safe general rule to cut them during rescue work—the action must only be done under a controlled de-tensioning plan directed by qualified structural engineers. In an emergency, prioritize stabilization and safe access and avoid cutting prestressing tendons unless a formal plan and proper professionals are involved.