Scouting assistant Rich Behm and special teams coach Joe DeCamillis filed separate lawsuits Tuesday in state district court in Dallas against Summit Structures LLC and others involved in building the steel and fabric facility.
The suits, which seek unspecified damages, charge the companies with gross negligence.
Behm was paralyzed from the waist down when the building collapsed in a wind storm on May 2. DeCamillis suffered a broken vertebrae.
The company that built the facility is Summit Structures LLC of Allentown, Pa.
About 70 people, including 27 players attending a rookie minicamp, were in the structure when the storm hit. Wind in the area was clocked at 64 mph, 1 mph shy of the threshold for a weak tornado. National Weather Service officials said a "microburst" may have pushed the wind beyond 70 mph at the top of the structure that was built in 2003.