Carbon fiber-reinforced polymer active-passive-confined compression-cast reinforced concrete column incorporating cathodic protection

A carbon fiber-reinforced polymer (CFRP) active-passive-confined compression-cast reinforced concrete (RC) column incorporating cathodic protection, comprising:

• a CFRP pipe;
• a plurality of longitudinal reinforcements positioned inside the CFRP pipe;
• a stirrup positioned inside the CFRP pipe and connected to the plurality of longitudinal reinforcements;
• compression-cast concrete arranged in the CFRP pipe, wherein the plurality of longitudinal reinforcements and the stirrup are embedded in the compression-cast concrete;
• and
• a power supply having a positive electrode connected to the CFRP pipe, and a negative electrode connected to the plurality of longitudinal reinforcements;
• and
• a pipe thickness monitoring assembly positioned outside the CFRP pipe and configured to measure a wall thickness of the CFRP pipe, and send, based on a measured wall thickness, a signal for physically adjusting the wall thickness of the CFRP pipe so as to enable the CFRP pipe to maintain the active confinement on the compression-cast concrete;
• wherein the CFRP pipe with a present thickness is configured to form an active confinement on the compression-cast concrete, and the power supply is configured to apply a current to the CFRP pipe as an anode to enable the plurality of longitudinal reinforcements to obtain electrons, thus stably protecting the plurality of longitudinal reinforcements as a cathode.