Preparation method and application of composite supporting column with bamboo or wood core

The invention belongs to a preparation method and application of a composite supporting column with a bamboo or wood core. Finish planed trapezoidal arc sheets are classified and manufactured into trapezoidal arc sheets with the same thickness, the same length, the same width, the same radian and the same density, and bonded square wires or logs are used as core materials. The large head ends of the trapezoidal arc sheets of the same specification and the small head ends of the adjacent trapezoidal arc sheets of the same specification are the same ends and are adjacently arranged, and the large head ends of the trapezoidal arc sheets of the specification at the same end of the assembly and the small head ends of the other trapezoidal arc sheets of the specification are arranged in a staggered mode for assembly, so that a plurality of layers of bamboo wheel materials fixedly wrapped on the outer wall of the core material are formed. According to the invention, planed waste bamboo materials can be reduced, the