  The GLAST Large Area Telescope (LAT) is the next generation satellite
experiment for high-energy gamma-ray astronomy. It is a pair conversion
telescope built with a plastic anticoincidence shield, a segmented CsI
electromagnetic calorimeter, and the largest silicon strip tracker ever built.
It will cover the energy range from 30 MeV to 300 GeV, shedding light on many
issues left open by its predecessor EGRET. One of the most exciting science
topics is the detection and observation of gamma-ray bursts (GRBs). In this
paper we present the work done so far by the GRB LAT science group in studying
the performance of the LAT detector to observe GRBs. We report on the
simulation framework developed by the group as well as on the science tools
dedicated to GRBs data analysis. We present the LAT sensitivity to GRBs
obtained with such simulations, and, finally, the general scheme of GRBs
detection that will be adopted on orbit.
