|其他題名:||Study of 3D-Printing Applications for Column Element|
In recent years, Taiwan's housing prices have been rising day by day, and the construction of building houses are time and labor consuming. Recently, it has been found that the average age of labor on the construction site has been increasing, resulting in a serious shortage of labor. In the past ten years, there are many success cases using 3D printing technology to build houses in foreign country. However, we found that most of the successful cases are low-rise buildings, this is because high-rise buildings construction needs high-strength column. In this study, our research goal is to use 3D printing technology to print columns without using rebars, formwork and pouring concrete, which can save labor usage, shorten the construction period, and even reduce construction waste and financial costs. In this study, four internal structure of the column were designed and compare through testing. Four internal structures are hollow, tic-tac-toe, spiral and diagonal brace. During the research process, there are two software includes, which are SketchUp and Cura, SketchUp was used to draw the idea into a 3D model, while Cura was used to slicing the 3D model into a 3D printer for printing. After the sample was printed, samples are subjected to a compression test, and the compression strength of different structures was obtained. Use compressive strength of the hollow specimen as a benchmark, the design strength of the tic-tac-toe has a significant increment of 46.34 kgf⁄cm2, about 26 %. According to the test results, it is known that the Tic-Tac-Toe design column has the highest compressive strength among all the design, and it is known that the Tic-Tac-Toe design has a stronger compressive strength.
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