Prestress counter-pull soft platform and construction method

The invention relates to the technical field of building construction scaffolds, in particular to a prestress counter-pull soft platform which is arranged at the top of a building courtyard and used for conducting auxiliary construction on a dome, and the soft platform comprises a net-shaped platform steel cable fixed to the position of the courtyard at the top of a building and a closed face laid on the platform steel cable. The platform steel cable comprises a main steel cable located on the lower portion and a net-shaped auxiliary steel cable lapped on the main steel cable, the middle of the main steel cable is connected with a counter-pull steel cable, and the top of the counter-pull steel cable is fixed to the dome. On one hand, the counter-pull steel cable resists downwarping of the soft platform and reduces deformation of the soft platform. On the other hand, the inherent frequency of the soft platform is changed, and vertical vibration of the soft platform is reduced. 本发明涉及建筑施工脚手架技术领域，特别是涉及一种预应力反拉软平台设