I am going to cast a slab (concrete on Leca block wall) that will be the floor for a boiler room, approximately 3x7 meters. In one corner, an accumulator tank weighing 3000 kg will be placed. The tank stands on four feet, with a diameter of about 1300 mm. Additionally, a wood boiler weighing around 700 kg will be placed next to it.
How should I dimension and reinforce this slab? Do I need to place a steel beam underneath or cast a pillar down to the ground as reinforcement under the tank?
