SEISMIC EVALUATION AND DESIGN OF JACK ARCH SLABS

摘要

The masonry jack arch slabs are used extensively in some parts of the world to floor residentialand industrial buildings. The popularity of this flooring system stems from its relatively low costand easy construction. This old system of flooring has shown robustness and resilience undernormal gravity loading but lacks the criteria for an earthquake resistant slab. In this paper, theweaknesses inherent in the traditional jack arch slab are first explored. An engineered,earthquake resistant version of the slab is then presented and the parameters affecting design ofthe slab are discussed. It is concluded that the engineered jack arch slabs discussed in this papercan be suitable alternatives to other forms of flooring in earthquake prone areas.