This is part of the main quest “Hunter/Hunted”
There's a turret control terminal, ground floor past the lobby, SE corner.
Third floor, in the room to the north: Issue of the Massachusetts Surgical Journal on the small table between red couches.
Fourth floor: Another turret control terminal before the doorway leading to the bridge. Chem station on the other room across the bridge. In the Novice-locked room across the kitchen, you'll find crafting components, frag mines, and a rigged explosives crate. Disarm the trigger and the makeshift bomb to salvage more crafting components.
Fifth floor: Room in the NE corner has a stealth boy and missile on the table. There's another terminal you can use to disable the turrets before crossing the bridge.
Eighth floor: Explosives crate in the end of the ramp. There's a laser tripwire you can disarm in the middle and an Advanced door to the west containing a first aid kit, Expert wall safe, and a Novice terminal where you can open the wall safe, control the tripwires, spotlights, or turrets. The Novice terminal by the counter in the middle has the same functions as well.
The room where the functional elevator is located has smaller utility/storage rooms that contain more crafting materials.
Ninth Floor: After leaving the elevator, you can get two fusion cores from the security gate ahead locked by a Master terminal. Open the normal door ahead to find the stairs. There's an Advanced door to your immediate right just beside that doorway. Alternatively, you can open it by hacking the Advanced terminal beside it. There's another fusion core inside this room.
Top floor: Continue upstairs and hack the novice terminal to the left of the large door to open it. There's another novice terminal to the right but it will only open the smaller security door leading to an ammo box and first aid kit.
There's also a trapped synth, K1-98 behind the Master-locked security door. Talk to her and she'll tell you about the password kept inside the red toolbox under the stairs. Grab the password and use it on the terminal to Power on the elevator and open the security door.
Fat-Man on top of a green steamer trunk on the stairs to the north. There's also a mini-nuke under the stairs where you found the Fat-Man.