GB578805A - Improvements in and relating to constructional steelwork - Google Patents

Abstract

578,805. Structural metal framework; walls. LIDSTER, H., and CLARKE, J. C. March 15, 1944, No. 941. [Classes 20 (ii) and 20 (iv)] Steelwork, particularly for use in building houses, comprises stanchions each consisting of a pair of steel channels 4 placed together with their flanges 51 meeting to form a box-like structure, a series of holdfast members 7 being applied to the stanchions at intervals along their length, to hold the channels together, and to be built into the brickwork or other material to be applied to the structure. An arrangement is shown in part structural elevation in Fig. 1, and in cross-section in Fig. 2, of a wall frame comprising a series of pairs built-up stanchions, one member of each of two pairs being seen in Fig. 1, and one pair in Fig. 2. The members of each pair are spaced apart by holdfast members 7 consisting of steel channel plates, which are slotted to pass over the stanchions and are held in position by wedges &c. The ends 8 of the parts 7 project beyond the erected stanchions so that they can be embedded in the wall-facing which the frame is designed to support. Each stanchion is secured at the bottom to a flanged sole-plate 10 by means of a T-shaped plate 15 and a wedge 16 driven therethrough and through slots in the stanchion, a bearing plate 14 and a transverse steel channel joist 12 being interposed between the bottom of the stanchion and the plate 10. The series of joists 12 serve as supports for shuttering 13 for forming a floor. The upper ends of the stanchions are similarly secured to a flanged head-plate 11 on which joists 19 are laid for supporting flooring or shuttering 20. When a further storey is to be added, another set of stanchions 21 is erected on the channels 19, with interposed bearing plates 22, and held in place by wedges engaging slotted plates 23, which in this case are so formed as to serve to hold both the upper and the lower sets of stanchions in position. Channel-shaped bracing struts 25 may be secured between the stanchions, at any desired intervals, the struts, which have triangular web portions 30 at their ends\ engaging the stanchions, being secured to the latter by means of channelled connecting members 28. A rectangular structure may be built up by mitring the ends of the sole-plates 10 and head-plate 11 and connecting to them at right angles similarly formed plates which support a further set of stanchions. A modified form of stanchion, Fig. 4, (not shown) consists of two or more pairs of channel-shaped members placed one pair inside another to form a laminated box-Iike structure. The cavity formed between inner and outer wall facings applied to the framework may be filled with material such as sand, cork, sawdust or spun glass, or it may be filled with poured concrete. In the space within the stanchions mild steel mesh or bars may be inserted. Instead of serving for the application of wall facings, the structure may be used as a reinforcement for concrete walls, formed by casting in steel shuttering which is temporarily attached to the holdfast members applied to the stanchions.