Dump truck and load transmission structure for same

A dump truck is configured so that stress in the joining section of a support structure provided to the dump body of the dump truck is reduced. This dump truck is provided with a vehicle body frame (2), a dump body (5), a support structure (12) which is provided to the dump body, and a load transmission structure (15) which transmits a load from the support structure to the vehicle body frame and transmits reaction force from the vehicle body frame to the support structure. The support structure has: vertical plates (12a, 12b) which are provided in the direction along which the support structure receives reaction force from the vehicle body frame; and a bottom plate (12c) which is in contact with the vertical plates from below. The bottom plate is divided into first regions which include regions in which the bottom plate is in contact with the vertical plates, and into a second region which is the region other than the first regions. The load transmission structure is configured so as to transmit the reaction force from the vehicle body frame to the bottom plate so that reaction force transmitted to the first regions is greater than reaction force transmitted to the second region.