| 摘要 |
FIELD: construction industry, bridge construction. SUBSTANCE: invention deals with equipment securing possibility to carry out construction work at some height in various fields of construction, for instance, in industrial and civil construction. Set of members for stock scaffold of manual assembly has horizontal and diagonal bracings, grillages, purlins and tubular supports with flanges having holes placed in parallel. Lengths of supports are tied up by relation 4:2:1. Shapes with holes to accommodate attachment members of transverse horizontal bracings border on flanges of larger and smaller supports. One overall dimension, as minimum, of flange mounted on one of butts of large or medium support exceeds corresponding dimension of another, preferably lower butt of support by factor of 2.2-1.8 with provision for matching of holes in flanges of all supports, at least one overall dimension of flange of smaller support is equal to corresponding dimension of smaller flange of large support. At least part of supports in section between shapes distant from corresponding flange by 1.3-1.6 diameter of support has threaded hole for fixing arm limiting travel of screw of jack mounted in upper tubular supports for inclination up to 4% to horizon of working planes of technological members installed on them. Middle part of large supports carry at least one additional shape with holes formed in it which axes are parallel and do not lie in one plane and middle parts of small supports have at least one shape with holes formed in it which longitudinal axes are parallel and do not lie in one plane. Length of screw of jack exceeds length of small support, jack has working pitch from 0 to 350 mm. Supports and jacks can be arranged in combination ensuring smooth change of height of working level of technological members installed in their upper parts according to specified arrangement. EFFECT: expanded technological potential of set of scaffold of manual assembly. 4 cl, 6 dwg
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