| Summary: | 碩士 === 國立高雄科技大學 === 土木工程系 === 107 === Recently 3D printing technology had been developed and applied to various industrial products, such as medicine, food, clothing and so on. In this study, feasibility of applying 3D printing technology to structural model preparation for vibration test of uncontrolled and controlled single-story buildings. A dual-arm long-end framed-type 3D printing machine (CR-10S, CR-10) was used, along with smelting deposition (FDM) material, to print the rod and the column, which combined with wooden floor to form a single-story model for shaking table test. Advantages of 3D printing features include easy molding, short production time and high variability. In this investigation, structural model are all single-story with single degree of freedom: (1) uncontrolled model; (2) controlled models: tuned mass-damper (TMD) and liquid damper (LD). Three dynamic responses are conducted: (1) free vibration tests for obtaining fundamental frequencies, system daming and stiffness; (2) harmonically vibration for resonant frequencies; (3) seismic responses using Chi-Chi, El-Centro and Kobe ground accelerations. Compared with analytical results, experimental results show that (1) 3D printing models can be applied for preliminary and convenient structural model preparation for vibration tests; (2) Precision of experimental results are not always good due to characteristics of 3D printing materials. (3) the sequence of anti-seismic effect of controlled models is El Centro, Chi-Chi and Kobe.
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