Temporary supporting device suitable for heavy fabricated component and low-carbon construction method

The invention relates to a temporary supporting device and a low-carbon construction method.The temporary supporting device comprises a bottom transfer beam, a temporary supporting frame body, a top transfer platform, a jacking and fixing device, a deviation adjusting device, a component holding and wrapping device, an operation platform and a crawling ladder; effective anchoring is adopted with the structural main beam; temporary supporting frame bodies are erected on the bottom transfer beams, joints in a two-way connection mode are adopted between the temporary supporting frame bodies, and the top transfer platform is used for distributing upper concentrated loads and guaranteeing uniform stress; a jacking and fixing device is arranged at the top of the conversion platform to complete uniform ascending of the frame body; the deviation adjusting device is used for completing deviation adjustment and posture adjustment of the supported component; and the component holding and wrapping device assists in fixin