GB190904807A - An Improved System of Reinforced Concrete Floor Construction. - Google Patents

Abstract

4807. Leslie & Co., and Dyson, H. K. Feb. 26. Reinforced concrete.-Relates to the disposition of the bars in a reinforced concrete floor. The columns A, Fig. 1, supporting the floor, are spaced so as to form square or approximately square bays, and the portions of the floor adjacent to the columns are treated as cantilevers B from which the floor slabs C are suspended. Fig. 7 shows one form of reinforcement for the cantilevers B ; Fig. 9 shows another form in which the rods reinforcing the columns are bent out into the cantilevers, either with or without separate rods. Where depth is limited, the lower parts of the cantilevers may be reinforced as shown in Fig. 7, and the rods may be inclined upwards from the centre. The floor slabs may be reinforced by parallel rods arranged in two series at right-angles, or by rods radiating from the centre of each slab. Some of the slab rods may extend into the cantilevers as shown in Fig. 15, and may there be bent upwards or downwards. The radial reinforcement shown in Fig. 22 may be used in the floor slabs or cantilevers, alone, or with cir.. cumferential frames, Fig. 23 ; the ends of the frame rods in the cantilevers may be bent up into the floor slabs. The upper and lower reinforcements in the cantilevers may be connected by ties, such as are shown in Fig. 29, consisting of a rod looped at L through which the end K is passed, the arm J being afterwards turned up. '