Full-dismounting combination type multifunctional bracket supporting structure and construction method thereof

The invention discloses a full-dismounting combination type multifunctional bracket supporting structure and a construction method thereof. The supporting structure is easy to manufacture and machine, convenient to install, high in working efficiency, low in construction difficulty and construction cost, high in applicability, material and device utilization rate, capable of being used repeatedly, safe and reliable, and the appearance quality of pier body concrete is guaranteed fundamentally. The supporting structure is designed for circular end piers, but can be suitable for piers with any form as long as a pre-buried steel box is improved.