Indonesian people know various types of foundations, one of which is the Cakar Ayam foundation. Although it is widely used for various construction foundations, there are still many people who are not familiar with the facts of this type of foundation. One of them is, did you know that the Cakar Ayam foundation comes from Indonesia? Not only that, there are many ins and outs of information about this type of foundation that you can find in the following article.
History of Cakar Ayam Foundation
Cakar Ayam Foundation is a building construction foundation technique that was invented in 1961 by the Director of Construction of the State Electricity Company (PLN), Prof. Dr. Ir. Sedijatmo. The beginning of the emergence of this idea was when Sedijatmo was going to build five power towers on a soft and watery marshland.
Then, the foundation frame is arranged by combining plates and concrete pipes as supports. Thus, the two of them gripped the ground together and were finally given the name Cakar Ayam.
The Cakar Ayam Foundation is
From the history and a brief description of the characteristics of this foundation frame, you may already be able to guess why it is called the Cakar Ayam foundation. This is because, this foundation does have a shape similar to the feet of the poultry. This base frame model is formed from thin plates arranged vertically. Then, it is reinforced by installing concrete pipes or claws at the bottom of the slab in a monolithic manner.
The thickness of the plate and the diameter of the pipe used are clearly different depending on the building to be constructed. However, in general, the thickness of the plate commonly used ranges from 10 to 20 cm. As for concrete pipes, construction workers usually choose a 1 m diameter variant with a length of 2.5 m.
Cakar Ayam Foundation Function
At the beginning of the appearance of the Cakar Ayam frame, its use was limited to construction on soft soil. But over time, the Cakar Ayam foundation has become the top type of foundation which is also used in other constructions such as flyovers, large bridges, skyscrapers, and airplane runways.
However, if you just build a house, this type is rarely chosen. Apart from being more expensive, house construction does not require a foundation as strong as other large buildings. Making houses more often uses the foot plate type of foundation.
Advantages and disadvantages of the Cakar Ayam Foundation
The selection of the foundation for a building must be right. You must consider whether the foundation is strong enough and proportional to the load resulting from the construction of the building. That way, the durability of the building will last longer in the future.
A Cakar Ayam-shaped foundation is a foundation that is known to be solid and strong even though it is built on watery soil. However, that does not mean that this basic framework does not have drawbacks. Learn more about the advantages and disadvantages of this foundation in the two points below.
Advantages of Cakar Ayam Foundation
- Popular and suitable to be built in Indonesia
As we know, many areas in Indonesia have swamps and soil that tends to be soft. So the Cakar Ayam foundation is the type that is very suitable for use.
- Strengthening the Building
Still related to soil conditions, the shape of the frame at the bottom of this foundation has the advantage of strengthening the building. This is due to the combination of the depth of the Cakar Ayam foundation, plate frame, and steel pipes, which are directly buried in the ground. So that the durability of the building can last longer.
- No Drainage Required
This foundation consists of concrete pipes, which are very strong and have no room for the natural discharge of water masses. That way, the construction of buildings with Cakar Ayam frames takes a shorter time.
- Recognized at the World Level
A further advantage of the scribble design is that this type of foundation is recognized all over the world. There are even some tests to see the scale of strength and durability of this foundation. Finally, there were 40 foreign countries that set international standards for patent recognition.
Disadvantages of the Cakar Ayam Foundation
- The Cost Required Is More Expensive
When compared to other types, the cost of a Cakar Ayam-shaped foundation is more draining on the wallet. This is because the manufacture of this foundation requires large amounts of material and uses sophisticated equipment. In conclusion, besides being expensive, the manufacturing also tends to be complicated.
- More Fit for Large Buildings
The concrete commonly used in this framework is quite large, so it will not be suitable for the construction of small houses. Scratch-shaped foundations are more suitable for large infrastructure projects such as skyscrapers and airstrips.
The Cakar Ayam Foundation Fee
Now you know that it costs a lot of money to build a Cakar Ayam-shaped foundation. So, how much money should you spend? Previously, know in advance how to calculate the volume of the following chicken claw foundation.
Cakar Ayam Volume (V) = Width x Length x Building Height
\= L x W x Tb (unit m3)
After getting the foundation volume number, you only need to multiply it by the unit price of the Cakar Ayam material that is priced on the market. As an illustration, here are some price lists.
Material Type Size Price (unit) Iron 8 50 x 50 Rp95,000 Iron 10 50 x 50 Rp140,000 Iron 12 50 x 50 Rp180,000 Iron 8 60 x 60 Rp113,000 Iron 10 60 x 60 Rp158,000 Iron 12 60 x 60 Rp184,000 Cakar Ayam (d.20cm) Iron 8 50 x 50 Rp106,000 Cakar Ayam (d.20cm) Iron 10 50 x 50 Rp114,000 Until now, this foundation model has become one of the types that are often used in countries outside Indonesia, though. In addition to Cakar Ayam, there is definitely a lot of information about other foundations that you need to know about.