Seismic Performance of F3D Free-Form Structures Using Small-Scale Shaking Table Tests

In recent years, studies that can maximize irregularity have increased as technological constraints weaken owing to the development of construction technology and the increase in demand for free-form structures. Considering this, free-form structures have been constructed using various materials. Co...

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Main Authors: Min Jae Park, Gain Cheon, Robel Wondimu Alemayehu, Young K. Ju
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/15/8/2868
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author Min Jae Park
Gain Cheon
Robel Wondimu Alemayehu
Young K. Ju
author_facet Min Jae Park
Gain Cheon
Robel Wondimu Alemayehu
Young K. Ju
author_sort Min Jae Park
collection DOAJ
description In recent years, studies that can maximize irregularity have increased as technological constraints weaken owing to the development of construction technology and the increase in demand for free-form structures. Considering this, free-form structures have been constructed using various materials. Concrete is considered most suitable for realizing an atypical shape because it is highly economical and can be assembled in a free form. However, not many studies have evaluated the structural performance of free-form concrete structures using free-form formwork 3D printer (F3D) technology, a 3D printing technology. Free-form structures must be designed to secure structural stability under both dead and live loads, as well as natural hazards such as wind, snow, and earthquakes. Therefore, in this study, we tested a free-form structure constructed by F3D printing using small-scale models that satisfy the similitude law with shaking tables. Furthermore, a finite element analysis was conducted to validate the small-scale tests. Lastly, the seismic performance of free-form concrete structures was evaluated based on the test and analysis results.
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spelling doaj.art-889704c6d033473680a777851b7b83952023-12-01T21:11:24ZengMDPI AGMaterials1996-19442022-04-01158286810.3390/ma15082868Seismic Performance of F3D Free-Form Structures Using Small-Scale Shaking Table TestsMin Jae Park0Gain Cheon1Robel Wondimu Alemayehu2Young K. Ju3School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, KoreaSchool of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, KoreaSchool of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, KoreaSchool of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, KoreaIn recent years, studies that can maximize irregularity have increased as technological constraints weaken owing to the development of construction technology and the increase in demand for free-form structures. Considering this, free-form structures have been constructed using various materials. Concrete is considered most suitable for realizing an atypical shape because it is highly economical and can be assembled in a free form. However, not many studies have evaluated the structural performance of free-form concrete structures using free-form formwork 3D printer (F3D) technology, a 3D printing technology. Free-form structures must be designed to secure structural stability under both dead and live loads, as well as natural hazards such as wind, snow, and earthquakes. Therefore, in this study, we tested a free-form structure constructed by F3D printing using small-scale models that satisfy the similitude law with shaking tables. Furthermore, a finite element analysis was conducted to validate the small-scale tests. Lastly, the seismic performance of free-form concrete structures was evaluated based on the test and analysis results.https://www.mdpi.com/1996-1944/15/8/2868F3Dfree-form structuresshaking table testsmall-scaleseismic performance
spellingShingle Min Jae Park
Gain Cheon
Robel Wondimu Alemayehu
Young K. Ju
Seismic Performance of F3D Free-Form Structures Using Small-Scale Shaking Table Tests
Materials
F3D
free-form structures
shaking table test
small-scale
seismic performance
title Seismic Performance of F3D Free-Form Structures Using Small-Scale Shaking Table Tests
title_full Seismic Performance of F3D Free-Form Structures Using Small-Scale Shaking Table Tests
title_fullStr Seismic Performance of F3D Free-Form Structures Using Small-Scale Shaking Table Tests
title_full_unstemmed Seismic Performance of F3D Free-Form Structures Using Small-Scale Shaking Table Tests
title_short Seismic Performance of F3D Free-Form Structures Using Small-Scale Shaking Table Tests
title_sort seismic performance of f3d free form structures using small scale shaking table tests
topic F3D
free-form structures
shaking table test
small-scale
seismic performance
url https://www.mdpi.com/1996-1944/15/8/2868
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