Feat happens here
A T. Rex is 18 feet tall (548.64 Cm)
Height of T. Rex 280 px = 548.64 Cm
Height of gate 400 px = 783.771428571 Cm
Width of gate 465 px = 911.134285712 Cm
Thickness of gate 25 px = 48.9857142826 Cm
783.771428571 * 911.134285712 * 48.9857142826 = 34981728.2848 Cm^3
Looks like Reinforced Concrete so i'll use those values.
Frag = 34981728.2848 * 10 = 349817282.848 / 3 (The dino hit the wall 3 times) = 116605760.949 Joules or 0.0278694457335086 Tons Small Building level
V. Frag = 34981728.2848 * 61.2 = 2140881771.03 / 3 = 713627257.01 Joules or 0.170561007889579 Tons Small Building level+ (Accepted)
Pulv (I don't think its pulv but just for fun) = 34981728.2848 * 610 = 21338854253.7 / 3 = 7112951417.9 Joules or 1.70003618974665 Tons Building level+
Small Building level dinosaur :0, thats crazy