Stress test device bonds between steel strand wires and concrete in pre -tensioning system component

The utility model relates to a stress test device bonds between steel strand wires and concrete in pre -tensioning system component, it is the force cell sensor who is provided with bonding stress between the steel strand wires that are used for detecting the pre -tensioning system component and the concrete at the top of support frame, be provided with the sleeve rack in force cell sensor's bottom, the sleeve that be used for fixed pre -tensioning system component is provided with in the bottom center of sleeve rack, it is fixed with the sleeve to utilize the sleeve rack, recycle the power that passes subassembly and apply decurrent pulling force load to the steel strand wires of pre -tensioning system component, displacement value through force cell sensor and displacement sensor real -time recording load size and steel strand wires, thereby confirm that the load power that it became invalid to bond corresponds in the twinkling of an eye is big or small between steel strand wires and the concrete, the utility model discloses the tentation data is more accurate reliable, has reduced measuring error greatly, and it provides reliable foundation with the design to use for the pre -tensioning system component.