A Study on the Problem Analysis and Quality Improvement in Fabricating Free-Form Buildings Facade Panels through Mock-up Panels Production

Kwen, Soon-Ho; Shim, Hyoun-Woo; Ock, Jongho

doi:10.6106/kjcem.2011.12.3.11

Cited by 6 publications

(10 citation statements)

References 3 publications

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“…The designers need to adjust the initial panel configurations to secure constructability of the panels at reasonable cost while maintaining the desired aesthetic quality of free-form shapes and cluster line smoothness of the panels. The process to change the curved panels with complex curvature into planar panels or the panels with simple curvature without damaging the visual quality of the free-form façade is called panel optimization [3,5].…”

Section: Free-form Panels Panelization and Optimizationmentioning

confidence: 99%

“…Three-dimensional laser scanning technology has been widely used as one of the RE methods in the construction industry [5,6,17]. The technology digitally captures the as-built size and shape of physical objects as a digital three-dimensional representation by use of a line of laser light [19].…”

Section: Reverse Engineering (Re) and Scan-to-bimmentioning

confidence: 99%

“…The scan data are then used to monitor progress of a project. The ability to apparently recognize discrepancy between the as-built and the as-planned has been thought as a key component for successful project management that acknowledges remedial decisions to be set up in a timely manner [5].…”

Section: Reverse Engineering (Re) and Scan-to-bimmentioning

confidence: 99%

“…Unmanned aerial vehicles (UAV), also called drones, have recently performed analogous function to 3D scanners. Both drones and 3D scanners have become critical means necessary to complete the 'Scan to BIM' cycle [5]. In a Scan to BIM process, the data captured by drones or scanners is imported into a 3D environment by such software that transfers the scan data to the BIM milieu to create either accurate as-built models or to inform the design with the real world surroundings as Pix4D, Cloudworx, Edgewise, Pointsense, and Revit Add-in [20].…”

Section: Reverse Engineering (Re) and Scan-to-bimmentioning

confidence: 99%

“…To produce the curved façade, the complex geometric shapes of the façade are divided into panels, i.e., the process of panelization, with forms and sizes that can be manufactured and fabricated economically [3,4]. The panels developed are classified into three categories in terms of their curvatures, i.e., planar, single-curved, and double-curved panels [5]. As the names imply, the planar panel is a flat one without any curvature; the single-curved panel denotes a panel with one directional curvature in a panel; and the double-curved panel refers to one with two or three directional curvatures in a panel.…”

Section: Introduction 1background and Purposementioning

confidence: 99%

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Testing as-Built Quality of Free-Form Panels: Lessons Learned from a Case Study and Mock-up Panel Tests

Ock

2021

Applied Sciences

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Constructing free-form buildings is very complex due to the difficulty in fabricating the curved façade. To install the façade, the complex geometric shapes of the façade need to be divided into panels. The panels developed are classified into three categories in terms of their curvatures, i.e., planar, single-curved, double-curved panels. The quality of the curved façade is determined by the geometric difference between as-built and as-designed panel shapes. Among the three types of curved panels, the double-curved panel is very difficult to form, showing greater quality discrepancy than the other two panel types. Ensuring the as-built quality of the curved façade is for contractors. The main objective of this study is to enhance small/mid-size contractors’ capacity of managing the as-built quality of the double-curved panel. To meet the study objectives, a case study of a small free-form building and empirical mock-up tests of curved panels were performed and beneficial lessons for the contractors were identified through the tests. Among diverse materials, aluminum and glass-fiber-reinforced concrete (GFRC) were utilized for the mock-up tests. Three-dimensional laser scanning technology was employed to foster the as-built data of the case study project and the mocked-up double-curved panels. The data superimposition method was used to measure the deviation between the as-designed and the as-built data of the case study.

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Section: Free-form Panels Panelization and Optimizationmentioning

confidence: 99%

Section: Reverse Engineering (Re) and Scan-to-bimmentioning

confidence: 99%

Section: Reverse Engineering (Re) and Scan-to-bimmentioning

confidence: 99%

Section: Reverse Engineering (Re) and Scan-to-bimmentioning

confidence: 99%

Section: Introduction 1background and Purposementioning

confidence: 99%

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Testing as-Built Quality of Free-Form Panels: Lessons Learned from a Case Study and Mock-up Panel Tests

Ock

2021

Applied Sciences

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Developing the preliminary cost estimate for the free-form building facade in conjunction with the panel optimization process

Park

Ock

2015

KSCE J Civ Eng

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An Analytical Study of the Latest Trends of Free-Form Molds

et al. 2022

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With the development of technology, the number of free-form structures—as well as their value—is increasing. In order to construct such free-form structures, a number of studies are being conducted on free-form molds from multifaceted perspectives. However, it is difficult to identify the progress of studies related to free-form molds, as the scope of the studies is redundant or similar in many cases. Therefore, the current study focused on the identification of the trends of preceding studies on free-form molds using the PRISMA technique. The study classified the studies into three topics in order to identify the trends: ‘free-form curve fabrication technology’, ‘free-form mold fabrication technology’, and the ‘analysis of free-form panel forms.’ Each topic was further categorized into two tiers for more in-depth analysis. The whole process was adopted in order to suggest the trends of studies on free-form molds. The findings are expected to be used to provide fundamental data for future studies on free-form molds, and to set the directions for new studies.

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A Study on the Problem Analysis and Quality Improvement in Fabricating Free-Form Buildings Facade Panels through Mock-up Panels Production

Cited by 6 publications

References 3 publications

Testing as-Built Quality of Free-Form Panels: Lessons Learned from a Case Study and Mock-up Panel Tests

Testing as-Built Quality of Free-Form Panels: Lessons Learned from a Case Study and Mock-up Panel Tests

Developing the preliminary cost estimate for the free-form building facade in conjunction with the panel optimization process

An Analytical Study of the Latest Trends of Free-Form Molds

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