The invention relates to an implantable concrete three-dimensional space
stress monitoring sensor, and belongs to the technical field of concrete structure
stress monitoring methods. The sensor is characterized in that six outer surfaces of a cubic
metal core (1) are symmetrically adhered to three d33 type piezoelectric
ceramic plates (3) and three d15 type piezoelectric
ceramic plates (4) through AB glue (5), and the six outer surfaces of the cubic
metal core (1) and the piezoelectric
ceramic plates are coated with high-strength
epoxy resin adhesive (6) which is used as insulating
layers and waterproof protection
layers. A
metal protective housing (2) is adhered to the high-strength
epoxy resin adhesive (6) layer of each surface of the cubic metal core (1). An end of a three-core shielding wire (7) is welded on the
anode and the
cathode of the piezoelectric ceramic plate, and the other end is connected with a shielding joint (8). The implantable concrete three-dimensional space
stress monitoring sensor can dynamically monitor three-dimensional space stress in a concrete structure, and is small in volume and high in strength. The sensor is characterized by good implantation, good external
interference resistance, sensitive dynamic response, and low cost.