The balcony has plenty of light and is a relatively independent space. It has always been the first choice for raising turtles at home. In order to maximize the use of space, we mostly use shelves to stack three to four turtle tanks on top of each other to raise turtles. The load problem has been bothering many turtle friends. Today, the director will try to talk to you about the load-bearing problem.

In fact, many balconies do not have turtles, and there are a lot of news about them being crushed. of. Not to mention making a turtle tank, which often weighs hundreds of kilograms to one ton.

The country has clear regulations on the load-bearing capacity of balconies:

1. Static load: the weight of the balcony itself, including the weight of the balcony bottom plate, upper and lower plastering, railings, etc., the standard is 200kg/ ㎡.

2. Live load: the changing load-bearing capacity of the balcony. The national balcony load-bearing design standard is 250kg/㎡.

Commercial buildings are all installed with this standard design of reinforcement density, steel bar thickness, and floor slab thickness. When designing a house, it is generally designed based on 1.1 times the static load and 1.4 times the live load. However, in actual construction, some corners will be cut, so the load-bearing capacity is still around 250kg-300kg/㎡.

The balcony floor is cast in one piece, so the load-bearing capacity is not calculated per square meter, but based on the entire balcony area. For example, the area of ​​a balcony is 1.5 meters wide x 3 meters long = 4.5 square meters, and its design load capacity is 250kg/㎡, then the balcony can bear 4.5x250 = 1125kg.

So don’t just calculate the area occupied by heavy objects such as the turtle tank. The stress is on the entire balcony floor, so the calculation should be based on the area of ​​the entire balcony. Otherwise, if an adult man weighing 70kg stands on the balcony, the area of ​​his feet is only 0.0002㎡. Then converted, the load-bearing capacity of the feet per unit area is 300 tons/square meter.

It can be seen that it is okay to raise turtles on the balcony. For example, if your balcony area is 8 square meters, there is no problem if you use a row tank to raise turtles. But if your balcony area is only 2 square meters and you want to raise turtles in high-density tanks, it would be very dangerous.

In addition, if the balcony is overweight, it will not collapse immediately. It will accelerate building fatigue and slowly cause walls and floors to crack and deform, and the steel bars inside will not fall down when pulled. But over time, the steel bars inside will rust and break, and the entire balcony will fall.

Some people may argue that they often see several tons of cement and building materials placed on a certain construction site or other places, and it is fine. That is because they are only temporary movable loads, while turtle tanks are long-term. Static load is completely incomparable.

It also depends on whether it is a cantilevered balcony or an inner balcony. The load-bearing capacity of the two is different, and the force is also different. The inner balcony is close to the load-bearing wall and can bear relatively greater force, but the cantilevered balcony The force will be much smaller. If the balcony area is small, the swing tank needs to find a load-bearing wall and use beams to hold the turtle tank up. It will be much safer if the weight is transferred to the load-bearing strength.

As for how to calculate the weight of the turtle tank, it is very simple. Let me do some popular science. One cubic meter of water weighs one ton. Assuming that the water depth inside a 100cm x 50cm x 40cm turtle tank is 20cm, the weight is 1m x 0.5m x 0.4m x 1000kg = 200kg. If there are at least three turtle tanks on a shelf, then the weight of the water alone will reach 600kg. It can be seen from the calculation of the fish tank The weight is 31kg each and the shelf is 100kg. The weight can reach 793kg. Add in filtration, sand tank, etc., and the weight can approach one ton. In most cases, there is no problem in raising turtles on the balcony. Of course, the premise is that the quality of the project is good. If you encounter a shoddy project, you can only cry without tears.