The subfloors in my new construction home are pretty squeaky and there is a good amount of deflection. I am looking at some simple DIY things that I can do hopefuly reduce the bounce and squeaks. Most of my basement ceiling is drywalled, but there are a few places where it is open.
The first thing I plan to try is to look for gaps between subfloor and the support system to shim in some pieces.
I also read about adding metal bridging. When looking at this article, I noticed I have a different type of joist system - open web floor trusses so I wanted to see if the same fix applies since I do not see any existing bridging. The article mentioned something about approval:
Don’t add bridging to manufactured lumber like I-joists or truss joists until you consult an engineer or building inspector. and I am not sure if this applies to me or not? I also see a few places where they sistered some wood and those cracked. I'm not 100% on all the terms, so I don't want to google and use the wrong techniques. There is also a lot of board separation above the subfloor - I mention this in case it is also relevant.
Here are some photos, I would like to know recommendations and other techniques that may be appropriate for this area. I have a few areas where pipes run along the support system.