| 摘要 |
<p>A building construction system for progressively forming a plurality of vertical superimposed concrete segments (27a, 27a) in a building construction. The system comprises a plurality of screw jacks (20) forming support columns and each carrying at their upper ends sub-frames (21) for the system onto which a main frame (23) overlying the positions at which the segments are to be formed is adapted to be positioned, and from which form works (31) are suspended to be movable to positions to define spaces within which concrete is poured to form said segments. The screw jacks (20) are adapted to be supported on a lower previously constructed level (28) of said building preceding a previously constructed level (28b) of the building and retractable while said main frame (23) is supported on adjustable struts (36) to reposition the screw jacks (20) for support on the previously constructed level (28b) of the building structure prior to being extended to a subsequent segment forming position.</p> |
