No output from Transimpedance Amplifier
I'm assuming your circuit looks like







simulate this circuit &ndash; Schematic created using CircuitLab

and your expectation that "it should saturate" is exactly correct. It IS saturating. The op amp is trying to drive the output below zero, but it cannot since it's a single-supply amplifier.

If you're going to use a TIA you have to use a negative bias to get a positive output.

ETA: Oh yes, and just to make your day - you may well have killed your op amps. Maybe not, since designers have gotten pretty good at protecting chips against overload, but this is pretty extreme. Not as extreme as getting hit by lightning, but that kills most chips, too. You need to check them in a less stressful circuit if you want to reuse them.