Abstract
Yield line analysis of reinforced concrete slab, simply supported on two sides perpendicular to the span and free on the other two sides, carrying concentrated load at different locations is carried out by determining the critical failure mechanism and the corresponding equilibrium equation analytically. Such slabs are often encountered in the form of culverts with concentrated vehicular loads. In practice, elastic methods of analysis are used for their analysis. However, the use of yield line analysis can indicate reserve strength which would result in more rational and economical design of such R.C. slabs for heavy concentrated loading. The change in the failure mechanism and the ultimate load-carrying capacity as the aspect ratio of the slab and positive and negative moment carrying capacity of the slab changes is further investigated. Based on the yield line analysis, design charts are prepared which would aid in the economical design of such slabs for concentrated loading.
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