| 摘要 |
SO-CALLED FLOOR TABLCS ARE USED FOR SHULTERING CONCRETE FLOOR .THEY CONSIST OF A SL.LPERSTRUCTU,R:C AR1D OF A SUPPORTING STRUCTURE. THE SUPERSTRUCTURE COMPRISES LONGITUDINAL BEAMS (2), CROSS BEAMS (3) AND A SHUTTERING .SKIN (4), THE SUPPORTING STRUCTURE CONSISTS OF A NUMBER OF FLOOR SUPPORTS (1) AND STIFFENING FRAMES (10) BETWEEN THE FLOOR SUPPORTS (1). EVERY STIFFENING FRAME (10) COMPRISES A FIXED FRAME PORTION (11)WITH FEET (12), HOLDING FIXTURES (18, 19) AT BOTH ENDS, RETAINING EYES (13) NEAR ONE END AND JOINTS (14) NEAR THE OTHER END, AS WELL AS A SLEWING FRAME, PORTION (21) WITH FEET (22), HOLDING FINGERS (23) AT ONE END WHICH CORRESPOND TO THE RETAINING EYES (13) AND PIVOT PINS AT THE OTHER END WHICH CORRESPOND TO THE JOINTS (14). IN WORKING POSITION, THE FIXEDAND SLEWING FRAME PORTIONS (11, 21) ARE APPROXIMATELY AT RIGHT ANGLES RELATIVE TO EACH OTHER. THE HOLDING FIXTURES FOR THE FLOOR SUPPORTS (1) CONSIST OF A PRISM (18) AND OF A CLAMPING HOOK (19).FIG. 1 1
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