Complex sentence: The steel shafts have shear joints that act as shock absorbers to cushion the lateral forces imposed by winds and quakes, and the swimming pool on the 57th floor is said to act as a passive damper.
Split into simpler sentences: The steel shafts have shear joints that act as shock absorbers to cushion the lateral forces imposed by winds and quakes. The swimming pool on the 57th floor is also said to act as a passive damper.