How to use "barrier" in a sentence

Elliot picked up the gun as he brought the Explorer to a full stop at the barrier.

As Elliot and Tina gazed up into the camera lens, the heavy steel barrier rolled aside.

As Tina and Elliot reached that barrier, the wheel-like handle in the center spun around

He turned away from them, spun the wheel on the steel door, and swung that barrier inward.

Suddenly a barrier appeared between us, and she has become like a stranger to me