When the Incas built Machu Picchu, they used a special building construction technique to ensure their buildings would not collapse from the frequent earthquakes in the region.

Known as the ashlar construction technique, the Incas were masters at the skill of cutting and fitting stones so close to each other that they require no mortar. This tight connection between stones minimises building vibrations and the resulting stress points that cause damage during earthquakes. The Incas also built their walls with an incline of three to five degrees and with rounded corners to contribute to their stability.

Inspired by the ashlar technique and Inca design, California architects Emerging Objects have created the aptly named Quake Column. It utilises similar earthquake proofing principles as the Incas, but is a lot less difficult to construct thanks to the use of 3D printing technology instead of massive stone blocks.

The Quake Column is made of partially hollow, printed concrete pieces that have a high strength-to-weight ratio along with specially printed handles so that they can be easily carried. Each piece has a unique number indicating its place in the construction sequence. When the pieces are assembled, they are locked tight  – like a 3D puzzle. No mortar or rebar is needed and initial tests on the Quake Column indicate that it is stronger than reinforced concrete.

Emerging Objects are still developing prototypes but hoping to ultimate bring the concept to the market.

More about Emerging Objects here and be sure to check out their Salt and Concrete House.