Relatively short (9.6 m / 32 ft) trucks with five axles are quite common. Its total weight is allowed to be 40 (metric) tons. What makes them a bit special is that three of the five axles (the front two and the last) are steered, which ensures the turning radius is under 20 m / 64 ft.
Do all these tires and wheels contribute significantly to the vehicle's ULW and thus reduce the load Tire scrubbing around corners will do more damage to the road surface than the reduced axle load does. Why don't they use 'Super single' 385/65R22.5 in the trailers.