Transient Heat Conduction in Abaqus with moving heat source

I have a reinforced concrete structure and was wanting to run some transient heat conduction simulations on it using Abaqus. Ideally I would like to be able to specify a heat source of some magnitude and have that move around the structure over a given length of time in order to study how the structure heats up, deforms, and then cools back down.

I also need to know how to specify thermal conductivity in abaqus if I am using a tapered beam elemet with a generalized cross-section. Under the basic tab it only seems to allow me to specify the thermal expansion coefficient.

Thanks!