| height 7.5 inches |
| weight 1.5kilos |
| length 220cm |
Product Description
As structural engineers of a certain age will recall from their student days a cross-braced panel is a statically indeterminate (or hyperstatic) structural system: the forces in the members cannot be determined simply by invoking equilibrium at the joints. Determining the forces used to be an exercise in the application of virtual work to structural problems. When cross bracing is used to resist lateral loads, the bracing members are usually designed as tension only and the designer assumes that the element which forms the compression member buckles elastically as the frame deforms so as to shorten the relevant diagonal. This approach is favoured when analysing and designing structures by hand as determining the buckling resistance of the member is avoided. Crossed flats were traditionally used for this purpose although angle bracing could be used so the bracing members had some out of plane stiffness to make handling easier. Cautionary tales regarding finishes being pushed off by bowing bracing are told, leading to the adoption of different bracing arrangements.
The cross-brace frame, represented in Figures 4 and 5, is perhaps the most commonly used system. Figure 4 shows a typical floor framing plan with cross bracing denoted by the dashed-line drawn between two center columns. The solid lines indicate the floor beams and girders.
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