The Structural Engineer > Archive > Volume 67 (1989) > Issues > Issue 24 > Live Load Model for Office Buildings
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Live Load Model for Office Buildings

The paper reports the result of a live load survey on office buildings carried out in Sydney, Australia. Eleven office buildings with a total floor area of 144 136m2 were surveyed. On the basis of the survey data, parameters for a probabilistic live load model are established. The sustained load is observed to be better represented by the log-normal distribution with the spatially correlated assumption. Parameters for an extraordinary load model are also established from actual survey data. Extraordinary load cells are found to be much bigger, and thus the number of concentrated loads in a cell is also much higher than those assumed by previous workers. Three types of extraordinary load have been identified and their means and variances are also established. Mean lifetime maximum total load predicted by using the present survey live load model is larger than the UK and USA survey results, except for very large areas. Multiple-storey column load has also been investigated. E.C.C. Choi