On February 7, 2025, the People’s Daily Overseas Edition published an article entitled “How can a 3D printed house resist an earthquake?》, A detailed report on a seismic test of a 3D printed house. The results experimental shows that this 3D concrete house model managed to pass the test and has not collapsed or has not been damaged in the conditions of earthquake to nine degrees (extremely strong earthquakes) .
The experience was carried out at the scientific and technological park of the Institute of Engineering Mechanics (Institute of Engineering and Technology of the Administration of the Earthquake in China). And students from the University of Zhejiang, the Dalian University of Technology and the China Engineering and Technology Institute. The 3D printed house model was built by the team of teacher Associate Sun Xiaoyan from the Architectural Engineering School of the University of Zhejiang. A local “attraction” after completion.
The main question of the research team is: “Is the 3D printed house solid?” Building by three -dimensional digital modeling. Theoretically, the building has excellent seismic resistance, but for additional verification, they decided to conduct real seismic seismic experiences on the vibration table.
This experience uses the three -degree vibration table to three degrees to three degrees in China, which can simulate horizontal, vertical and rotary vibrations at the same time, and establishes six earthquake conditions, and performs 7 tests in each condition of Operation to gradually add the intensity of the earthquake, until the structure of the building is damaged. The selected seismic waves forms include the Tangshan seismic wave, the Shandong seismic wave and the seismic Wenchuan Wolong, which load six, seven, eight and nine seismic degrees to test resistance to the earthquake of the building.
Throughout the experience, the main structure of the house was not damaged in the six -degree earthquake conditions; Although cracks appear in the conditions of earthquake to seven degrees and eight degrees, the structural framework did not affect the global structure and has remained intact; The cracks entered the conditions of earthquake to nine degrees. Experimental results prove thatThis 3D printed house has managed to take the test of extreme earthquakes. The research team then added 1 ton of counterweight to test its ultimate seismic resistance more.
Sun Xiaoyan believes that 3D printed concrete buildings have the characteristics of “transformers”: thanks to digital construction, additive manufacturing and prefabricated assembly, they can be quickly constructed and adapted to the needs of an architectural design diversified; The frame forms steel bars. She pointed out that in rural areas, 3D printed houses will become an ideal solution for the future construction of housing due to poor seismic resistance and a work shortage. However, as an emerging construction technology, 3D -printed concrete houses still require professional certification and practical tests.
It is understood that this 3D printed house prototype covers an area of 400 square meters and has been developed jointly and built by the intelligent construction team of Zhejiang University, as well as LingCong technology, Guanli and the company Additive Cornerstone.
This experience checked the stability of 3D -printed concrete houses under strong earthquakes, proving that they can be one of the architectural solutions in areas subject to earthquakes. With additional research, 3D printed houses should become a new direction for the construction of urban and rural housing in the future. and post-catastrophe reconstruction.
