| 摘要 |
ADJUSTABLE FORMWORK FOR CURVED BEAM The present invention discloses a formwork (100) for casting a curved beam (111) comprising a first panel (101a) and a second panel (101b), which are vertically raised and arranged in an opposing position, defining a hollow space in between the opposing inner surface of the panels (101) for casting the beam (111); a plurality of crosspiece (102) mounted on the outer surface of the panels (101) and horizontally extending from one edge to another edge of the panel (101) that each crosspiece (102) is spaced apart from each other in a substantially equal distance; a plurality of horizontally spaced tracks (103) fabricated on each of the crosspiece (102), whereby position of the tracks (103) of each crosspiece (102) are substantially identical; a plurality of fasteners (104), each defined by an elongate body with a first tip for engaging onto each of the track (103) and a second tip for connecting to a force generator (106); and a plurality of columns (105), each connecting the fasteners (104) at the upper position to the adjacent fasteners (104) at the lower position of the panels (101); wherein the panels (101) are fashioned to slide against the columns (105) that are connected to the fasteners (104) through the tracks (103) to negate in-plane tension or compression when the panels (101) are shaping into a smooth curvature upon receiving a pull or push force exerted by the force generator (106) in a direction transverse to the panels (101). (The most illustrative drawing: Figure 2) |
