Several observations:
Before you worry about stepping the load resistance, the basic circuit has to make sense and simulate.
1. The network R1, L1, C1 and C2 are driven by an ideal voltage source, so cannot have an effect upon the voltage at the input of the full-wave bridge rectifier. If you are attempting to model some sort of resonance, you should use a current source (infinite output impedance) to excite that network, or reconfigure the network so it is not in parallel with a voltage source.
2. With the voltage at the input of the full-wave bridge of only 1.44V p-p, the forward voltage drop of the Silicon diodes (the default diode) will just barely conduct, so I'm not understanding what you are trying to do?
Being curious, I reconnected the voltage source in series with C2, and then swept the frequency around your stimulus frequency of 230Hz. Note that the series resonance of this network is close to 230Hz. The parallel resonance is close to 248Hz.
However, if this connection mimics what you are trying to do, note that the amplitude out of the network at the series resonance is so small, you would get nothing out of the full-wave bridge even if it was hooked up...