Unless you have a greenhouse or multi-thousand watt equiv. lighting with summer-sun equivalent light, you will not get good growth on adult columnar cactus indoors. Seedlings, sure-- grafts, OK. But adult plants need to be hibernated for the cold season if you want them to look healthy and not get ugly etiolation.
You should absolutely never water your cactus once the temperature approaches and stays below 50 degrees F, because the roots go into a hibernation mode, and will not be able to effectively process the water-- it will significantly increase the chances of root rot, and can kill your whole plant.
Bridges are notoriously sensitive to cold wet damage-- pachanoi are less affected but still at risk.
Cactus in the Trichocereus family naturally hibernate in cold dry weather-- the most imperative thing to remember when winterizing your plants is that dry roots make for cold-hardy plants (within their safe range that is-- they can still be killed if the temps get too far towards or below freezing because the water in the flesh will freeze, rupturing their cellular walls)
You should always stop watering entirely at least a couple weeks before temps reach into the low 50's at night to allow complete soil drying to prepare the plant for winterizing. This timing will vary depending on how well draining/water retaining your soil mix is.
Wrinkling/shrinking without water over winter is perfectly normal and safe for your plants and does not equal any need for watering-- it happens in nature too-- and as long as you have your plants in hibernation-- meaning bone-dry soil, temps between ~40's and max of low 60's F-- you should see no etiolation even in strong lights, they do NOT need water-- they will be fine until spring!
This is the healthiest way to overwinter columnar plants-- because unless you have a way to keep temps above 60F minimum AND light that is summer sun equivalent, you will get ugly etiolation and disfigurement of your adult plant, which can not be undone.
Most people in non-ideal environments have no choice but to overwinter/hibernate their columnars unless they can keep the temps above 60F and provide sunlight that will not etiolate the plants-- it's just part of the game we have to play if we want healthy cactus in northern climates.