Slabline Ltd

Self-weight of the floor system applied with load factors of 1.2G and 1.5Q as per AS/ NZS1170.0 have been allowed for in the design analysis, noting that ultimate demands tend not to govern. For serviceability, tensile bottom fibre stresses are limited to 0.5*√f’c when short term live load factor, ψs = 0.7, deflections are limited to span/400, vibration limits to meet domestic/ office use with damping ratio of 0.05 allows for full height partitions. Simply compare your unfactored superimposed live + dead load with the allowable shown on the table. Please note high dead loads will induce higher creep values than expected. Also loads as per cl 3.4.2(a) AS/NZS 1170.1 2002 have not been allowed for. If this is the case, please contact Slabline for further advice. Additional capacity to sustain additional point and line loads can be achieved using Ribs butted together, Multiple beams 2,3,4,5. However, significant loadings should be checked by a Slabline Engineer, or an appointed Engineer at the preliminary design stage. Intended unfactored loads and load factors should be clearly shown on the Consultant’s drawings to avoid any confusion throughout the shop drawing and design process. Contact Slabline if you have special loading cases for design advice.