Developing Papua with Cobweb Construction – Since the academic study which was later refined by (the late) Prof. Aziz Djayasaputra at the Bandung Institute of Technology (ITB) in early 2000, the discovery of Cobweb Construction (the late) Ir. Sutjipto and (deceased) Ir. Ryantori from the Sepuluh November Institute of Technology (ITS) has grown rapidly to several parts of Indonesia.

The advantages of this construction, especially for areas that are often hit by earthquakes and have soft soil, have attracted a number of regions to adopt this technology.

This cobweb-shaped foundation became widely known among civil experts and the public after being proven to have secured a number of buildings during the earthquakes in Aceh, Nias on December 26, 2004 and Nias (West Sumatra) on September 30, 2009.

From the results of an academic study in 2005, the Directorate General of Human Settlements, Ministry of Public Works (now the Ministry of Public Works and Public Housing) issued a letter of recommendation for the use of this foundation in low-rise buildings.

Since then, a number of buildings in the country, especially in earthquake-prone areas and other extreme areas, have begun to take advantage of this technology.

The foundation has also proven to be able to withstand aircraft loads for the apron of Juata Tarakan Airport and Batam’s Hang Nadim Airport to date. The reason for using the construction at that time was because the location of the airport was on soft ground and the Hang Nadim Airport terminal was above landfill.

Then in its development, this innovation by the sons of the nation is widely used for buildings in Indonesia, including in the capital city of Jakarta. Several factors that made this foundation chosen are safer from earthquake risks, fast and easy to implement, economical and environmentally friendly.

These considerations make this foundation widely chosen for the construction of hospitals, schools and several other buildings which of course refers to the consideration of planning consultants to adopt this technology.

This construction was again tested after a number of buildings did not suffer significant damage when a large earthquake hit the city of Padang, West Sumatra, on September 30, 2009 and Palu, Central Sulawesi, on September 28, 2018.

Over time, Papua became one of the local governments that adopted the cobweb foundation technology. The consideration was not only extreme land and earthquakes, but more on economic factors.

The Ministry of Public Works and Public Housing of the Republic of Indonesia chose the cobweb foundation due to considerations of economic convenience, earthquake risk and Papua’s geographical conditions.

As known, the price of building materials in Papua is not the same as in other regions in Indonesia. For example, cement generally ranges from IDR 60.000 to IDR100.000 per bag in some areas, but in Papua it can reach millions per bag.

Whereas the cement component contributes the most in building the foundation. So that a foundation that is not only strong is chosen, it is also able to reduce construction costs and is easy to implement.

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