Jig frame for inverted jacking construction of steel cylinder

The utility model discloses a jig frame for inverted jacking construction of a steel cylinder. Wherein the jig frame body comprises two groups of fixed trusses; wherein one group of the fixed trusses are symmetrically arranged up and down, the other group of the fixed trusses are symmetrically arranged left and right, each group of the fixed trusses is connected with the movable trusses through bolts to form a polygonal base, and when the steel cylinder is assembled, hydraulic top bases are equidistantly distributed on the upper surface of the base along the circumference; when the steel cylinder is moved, four temporary buttress mechanisms are equidistantly arranged on each fixed truss along an arc line; the structure has the advantages of being stable, safe, simple in process, low in cost, flexible and the like. 本实用新型为一种针对钢圆筒倒装顶升施工的胎架，所述胎架本体包括2组固定桁架，其中一组所述固定桁架上下对称设置，另一组所述固定桁架左右对称设置，每组所述固定桁架通过螺栓与移动桁架连接围成多边形的基座，当拼装钢圆筒时，所述基座上表面沿圆周等距分布设置有液压顶底座；当移动钢圆筒时，每个所述固定桁架上沿弧线等距设置4个临时支墩机构；该发明结构具有稳固、安全，工艺简易，成本较低、灵活等优点。