The invention discloses a reusable hydraulic combined special-shaped steel formwork and a dismantling method, which includes a circular arc section bent frame, a straight line section bent frame, a hydraulic main
pipe, a hydraulic oil cylinder, an arc panel and a plane panel; the hydraulic main
pipe and the pumping
station flow The bending shape of the
elbow section of the road bend is the same, and the hydraulic main
pipe passes through the center of the curved frame of the arc section and the bent frame of the straight section; the hydraulic cylinders include radial hydraulic cylinders, central linear hydraulic cylinders, lateral hydraulic cylinders and oblique hydraulic cylinders. Cylinders; each
hydraulic cylinder is equipped with metering valves. The present invention skillfully utilizes the
hydraulic cylinder as the supporting and shaping structure of the
elbow section of the flow path of the pump
station, and the hydraulic oil is used to push the
hydraulic cylinder to adjust the corresponding
stroke or length, so as to correct the arc section bent frame, straight line section bent frame, arc panel, The deformation of the plane panel ensures the position accuracy of the formwork. It can not only set up the steel formwork automatically, but also disassemble the steel formwork after the concrete is formed, so that the steel formwork can be used repeatedly and has high positioning accuracy.