The thesis introduces the concept and principles of 3D printing,analyzes the application status of 3D printing technology in building engineering,and finally points out its advantages,such as low cost,short construction duration and environmental protection and so on. There-fore,it will have wide application prospect in building engineering field.%介绍了3D打印的概念及原理，分析了3D打印技术在建筑工程中的应用现状，指出3D打印建筑具有成本低、工期短、环保等优势，在建筑工程领域的应用前景非常广阔。
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