Basement top plate temporary supporting device based on beam plate reinforcement

The invention relates to a basement roof temporary supporting device based on beam and slab reinforcement, relates to the technical field of building structure supporting structures, and aims to solve the problems that when a traditional fastener type full steel pipe frame is used for back-jacking supporting, the fastener type full steel pipe frame can occupy the basement space, and passing and construction of a basement are greatly affected. The transverse supporting columns, the longitudinal supporting columns and the inclined supporting columns are arranged on a basement top plate and are perpendicular to one another, the ends of the longitudinal supporting columns are fixedly connected with the side walls of the transverse supporting columns, and the ends of the transverse supporting columns are fixedly connected to the corresponding concrete beams; the two ends of the inclined supporting column are fixedly connected with the concrete beam and the concrete column respectively. The basement roof supporting