Stress state self-sensing swivel support

The utility model relates to the technical field of swivel supports in bridge building construction, in particular to a stress state self-sensing swivel support. Comprising a top adapter, a bottom adapter and an installation limiting assembly arranged between the top adapter and the bottom adapter, and a radial force detection assembly, a stress regulation and control assembly and a weighing detection assembly are arranged below the installation limiting assembly. The swivel support is assembled in a high-precision mode by installing the limiting assembly, so that the axis coincidence degree of the top adapter and the bottom adapter is ensured, and the torsion bearing performance of the support is improved; the state sensing assembly is used for receiving data collected by the sensor and analyzing the stress state of the support, a stress model of the support is established, an early warning signal is sent out by the early warning output module when stress is abnormal, the individual requirements of users are