Construction method for long-span hanging vestibule type template support system

The invention belongs to the technical field of construction engineering and in particular relates to a construction method for a long-span hanging vestibule type template support system. The construction method comprises the following steps: (1) selecting the position of a hanging steel beam; (2) paying off the hanging steel beam in a positioning mode; (3) installing the hanging steel beam, and welding with a connecting rod; (4) laying a construction operating platform; (5) paying off an upright rod in a positioning mode and installing; (6) erecting longitudinal and horizontal cross rods; (7) unloading inclined rods and erecting inclined rods on a beam bottom; (8) installing an adjustable support; (9) installing templates on the beam bottom; (10) binding beam reinforcing steel bars; (11)installing templates on the beam side; (12) installing templates on the template on a plate bottom; (13) binding plate reinforcing steel bars; and (14) pouring concrete. The construction method has the beneficial effect that a three-dimensional cross operation space is provided for each construction working procedure, the construction period can be greatly shortened, a channel is provided for concrete in-site conveying, the pouring efficiency of concrete is improved, adopted materials can be reused, and the construction method conforms to the environmentally-friendly construction requirementsof high efficacy and energy conservation.