Cumincad : CUMINCAD Papers : Search Results

CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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_id	ijac201412104
id	ijac201412104
authors	Stavric, Milena; Albert Wiltsche
year	2014
title	Quadrilateral Patterns for Rigid Folding Structures
source	International Journal of Architectural Computing vol. 12 - no. 1, 61-80
summary	In this paper we will do investigations on spatial quadrilateral meshes developed from folding patterns. The simplicity of manual production in combination with the geometrical complexity of paper folding shall lead to an inspiration for designing architectural structures. We propose geometrical methods for designing these quadrilateral structures which follow in their shape geometrical surfaces. Our methods use folding patterns where only four folding lines meet in one node and every quadrangular part stays flat. This enables simpler solutions for architectural realization in a big scale especially for join connections and assembling of the whole spatial and structural system. In order to understand and handle the complexity of paper folding we use CAD tools to model the structures where the entire folding element is reconstructed and its geometric characteristics are controlled. This kind of control reflects on scale models. Models are then adjusted, examined and built to reach certain further geometric conclusions that are once more tested in CAD software.
series	journal
last changed	2019/05/24 09:55

_id	sigradi2014_201
id	sigradi2014_201
authors	Vermillion, Joshua
year	2014
title	Physical Computing without the Computing: Small Responsive Prototypes
source	SiGraDi 2014 [Proceedings of the 18th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-9974-99-655-7] Uruguay- Montevideo 12,13,14 November 2014, pp. 643-646
summary	This paper outlines a framework for better understanding the appropriate skills and roles of design students as developed by the author for a one-week short course on the topic of physical computing and design. Severe time constraints forced an examination of how to introduce physical computing to students with novice understandings of these systems and how they work, while maintaining expectations to prototype and produce full-scale spatial installations. This framework allowed the short-course students to deliver focused and well-crafted self-assembling lattice prototypes, while integrating the complexities of human interaction, spatial effects, fabrication, detailing, and prototyping.
keywords	Physical computing; Self-assembly; Responsive environments; Design education; Digital fabrication
series	SIGRADI
email
last changed	2016/03/10 10:02

_id	ecaade2014_151
id	ecaade2014_151
authors	Zeta (Georgia) Kachri and Sean Hanna
year	2014
title	Parasitic Ecologies - Algorithmic Space through Diffusion-Limited Aggregation of Truncated Octahedrons
doi	https://doi.org/10.52842/conf.ecaade.2014.2.539
source	Thompson, Emine Mine (ed.), Fusion - Proceedings of the 32nd eCAADe Conference - Volume 2, Department of Architecture and Built Environment, Faculty of Engineering and Environment, Newcastle upon Tyne, England, UK, 10-12 September 2014, pp. 539-546
summary	Parasitic architecture allows the creation of flexible structures that feed off existing infrastructure. Additionally, self-organised models that grow in response to environmental forces and adapt to their context introduce new ways for intervening in architectural design. This paper investigates the properties of self-organised parasitic structures that evolve by creating aggregation forms in the context of simulated structural environments. The growth process of the parasitic structures is inspired by the fungal colonies and is based on the rules of diffusion-limited aggregation (DLA) extended to support real-time force analysis and aggregation of space-filling geometry. The results of the simulations demonstrate that the developed diffusion-limited aggregation of truncated octahedrons is capable of providing self-sustained structures able to adapt in environments with different spatial limitations.
wos	WOS:000361385100056
keywords	Adaptive structural models; parasitic architecture; diffusion-limited aggregation; self-organisation, java
series	eCAADe
email
last changed	2022/06/07 07:57

_id	acadia19_246
id	acadia19_246
authors	Zhang, Viola; Qian, William; Sabin, Jenny
year	2019
title	PolyBrickH2.0
doi	https://doi.org/10.52842/conf.acadia.2019.246
source	ACADIA 19:UBIQUITY AND AUTONOMY [Proceedings of the 39th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-578-59179-7] (The University of Texas at Austin School of Architecture, Austin, Texas 21-26 October, 2019) pp. 246-257
summary	This project emerged from collaborative trans-disciplinary research between architecture, engineering, biology, and materials science to generate novel applications in micro-scale 3D printed ceramics. Specifically, PolyBrick H2.0 adapts internal bone-based hydraulic networks through controlled water flow from 3D printed micro-textures and surface chemistry. Engagement across disciplines produced the PolyBrick series at the Sabin Lab (Sabin, Miller, and Cassab 2014) . The series is a manifestation of novel digital fabrication techniques, bioinspired design, materials inquiry, and contemporary evolutions of building materials. A new purpose for the brick is explored that is not solely focused on the mechanical constraints necessary for built masonry structures. PolyBrick H2.0 interweaves the intricacies of living systems (beings and environments combined) to create a more responsive and interactive material system. The PolyBrick 2.0 series looks at human bone as a design model for foundational research. PolyBrick H2.0 merges the cortical bone hydraulic network with new functionalities as a water filtration and collection system for self-preservation and conservation as well as passive cooling solutions. It also pushes the ability of 3D printing techniques to the microscale. These functionalities are investigated under context for a better construction material, but its use may extend further.
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:57

_id	acadia16_488
id	acadia16_488
authors	Derme, Tiziano; Mitterberger, Daniela; Di Tanna, Umberto
year	2016
title	Growth Based Fabrication Techniques for Bacterial Cellulose: Three-Dimensional Grown Membranes and Scaffolding Design for Biological Polymers
doi	https://doi.org/10.52842/conf.acadia.2016.488
source	ACADIA // 2016: POSTHUMAN FRONTIERS: Data, Designers, and Cognitive Machines [Proceedings of the 36th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-692-77095-5] Ann Arbor 27-29 October, 2016, pp. 488-495
summary	Self-assembling manufacturing for natural polymers is still in its infancy, despite the urgent need for alternatives to fuel-based products. Non-fuel based products, specifically bio-polymers, possess exceptional mechanical properties and biodegradability. Bacterial cellulose has proven to be a remarkably versatile bio-polymer, gaining attention in a wide variety of applied scientific applications such as electronics, biomedical devices, and tissue-engineering. In order to introduce bacterial cellulose as a building material, it is important to develop bio-fabrication methodologies linked to material-informed computational modeling and material science. This paper emphasizes the development of three-dimensionally grown bacterial cellulose (BC) membranes for large-scale applications, and introduces new manufacturing technologies that combine the fields of bio-materials science, digital fabrication, and material-informed computational modeling. This paper demonstrates a novel method for bacterial cellulose bio-synthesis as well as in-situ self-assembly fabrication and scaffolding techniques that are able to control three-dimensional shapes and material behavior of BC. Furthermore, it clarifies the factors affecting the bio-synthetic pathway of bacterial cellulose—such as bacteria, environmental conditions, nutrients, and growth medium—by altering the mechanical properties, tensile strength, and thickness of bacterial cellulose. The transformation of the bio-synthesis of bacterial cellulose into BC-based bio-composite leads to the creation of new materials with additional functionality and properties. Potential applications range from small architectural components to large structures, thus linking formation and materialization, and achieving a material with specified ranges and gradient conditions, such as hydrophobic or hydrophilic capacity, graded mechanical properties over time, material responsiveness, and biodegradability.
keywords	programmable materials, material agency, biomimetics and biological design
series	ACADIA
type	paper
email
last changed	2022/06/07 07:55

_id	ecaadesigradi2019_467
id	ecaadesigradi2019_467
authors	Petrš, Jan, Dahy, Hanaa and Florián, Miloš
year	2019
title	From MoleMOD to MoleSTRING - Design of self-assembly structures actuated by shareable soft robots
doi	https://doi.org/10.52842/conf.ecaade.2019.3.179
source	Sousa, JP, Xavier, JP and Castro Henriques, G (eds.), Architecture in the Age of the 4th Industrial Revolution - Proceedings of the 37th eCAADe and 23rd SIGraDi Conference - Volume 3, University of Porto, Porto, Portugal, 11-13 September 2019, pp. 179-188
summary	This paper proposes a self-assembling system for architectural application. It is a reaction to current building crisis and high energy consumption by building industry. This Unique system is based on a reconfiguration of passive elements by low-cost soft robots able to move inside as well as configure them into 2D/3D structures similar to recent Modular robots. A goal is to significantly reduce the high price and complexity of state of the art modular robots by minimization of mechatronic parts and using soft materials. The concept focuses on life-cycle management when one system can achieve assembly, reconfiguration, and disassembly with a minimum of waste. The paper compares three different versions of a self-assembly system called MoleMOD: MoleCUBE, MoleCHAIN, and MoleSTRING.
keywords	Self-assembly; Soft robotics; Modular robotics; Reconfigurable string; Adaptive architecture
series	eCAADeSIGraDi
email
last changed	2022/06/07 08:00

_id	ecaade2017_302
id	ecaade2017_302
authors	Saleh Tabari, Mohammad Hassan, Kalantari, Saleh and Ahmadi, Nooshin
year	2017
title	Biofilm-inspired Formation of Artificial Adaptive Structures
doi	https://doi.org/10.52842/conf.ecaade.2017.2.303
source	Fioravanti, A, Cursi, S, Elahmar, S, Gargaro, S, Loffreda, G, Novembri, G, Trento, A (eds.), ShoCK! - Sharing Computational Knowledge! - Proceedings of the 35th eCAADe Conference - Volume 2, Sapienza University of Rome, Rome, Italy, 20-22 September 2017, pp. 303-312
summary	Todays design researchers are beginning to develop a process-based approach to biomimicry. Instead of merely looking at static natural structures for inspiration, we are learning to draw from the underlying organic processes that lead to the creation of those structures. This paradigm shift points us in the direction of adaptive fabrication systems that can grow through processes of self-assembly and can reconfigure themselves to meet the contours of local environments. In this study we examined the structural growth patterns of bacterial biofilms as a basis for a new kind of artificial, self-assembling module. This demonstration of bio-inspired design shows how contemporary technology allows us to harness the lessons of evolution in new and innovative ways. By exploring the dynamic assembly of complex structural formations in nature, we are able to derive new resource-efficient approaches to adaptable designs that are suited to changing environments. Ultimately we aspire to produce fully synthetic analogues that follow similar patterns of self-assembly to those found in bacterial biofilm colonies. Designers have only just begun to explore the tremendous wealth of natural form-creation processes that can now be replicated with computer-aided design and fabrication; this project shows just one example of what the future might hold.
keywords	Biofilm; Adaptive Structure; Formation; Quorum Sensing; Parametric Condition
series	eCAADe
email
last changed	2022/06/07 07:56

_id	acadia18_342
id	acadia18_342
authors	Wu, Kaicong; Kilian, Axel
year	2018
title	Robotic Equilibrium: Scaffold Free Arch Assemblies
doi	https://doi.org/10.52842/conf.acadia.2018.342
source	ACADIA // 2018: Recalibration. On imprecisionand infidelity. [Proceedings of the 38th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-692-17729-7] Mexico City, Mexico 18-20 October, 2018, pp. 342-349
summary	Compression only arch structures are structurally highly efficient in force equilibrium. However, the material efficiency is offset by the traditional use of scaffolds to position materials and counter the out of equilibrium forces during assembly. We introduce a method of sequentially assembling compression only structures without a scaffold by robotically maintaining the compression equilibrium in every step. A two-arm collaborative robotic setup was used to maintain force equilibrium throughout arch assembly with the arms taking turns first hot wire cutting and placing blocks and providing a temporary scaffold to support the arch end point. To test the approach, a single catenary arch was generated using form-finding techniques and sequentially built from foam blocks. Moving forward we show the relationship between the joint valence (largest number of joined branches) of a multi-branched structure and the minimum number of robotic arms required for assembly using our initial technique. With only two robotic arms available, the technique was further developed to reduce the required number of arms per arch branch from two to one by attaching caterpillar tracks at the block supporting end effector. This allows a human to load the next block and the arm to move forward along the arch while maintaining equilibrium. Results show that robotic equilibrium scaffold free arch assembly is possible and can reduce scaffold waste and maintain the material efficiency of compression only structures. Future work will explore further applications of assistive robotics in construction replacing static construction aids with dynamic sensory feedback of equilibrium forces.
keywords	work in progress, collaborative sequential assembly, robotic equilibrium, compression only structures, form finding
series	ACADIA
type	paper
email
last changed	2022/06/07 07:57

_id	sigradi2015_13.316
id	sigradi2015_13.316
authors	Ariza, Inés; Gazit, Merav
year	2015
title	On-site Robotic Assembly of Double-curved Self-supporting Structures
source	SIGRADI 2015 [Proceedings of the 19th Conference of the Iberoamerican Society of Digital Graphics - vol. 2 - ISBN: 978-85-8039-133-6] Florianópolis, SC, Brasil 23-27 November 2015, pp. 746-753.
summary	Robotic assembly of architectural structures has been an area of research for a few decades. Yet, current methods impose a large number of constraints on the geometry of those structures. In this paper we introduce a method for robotic assembly that enables the construction of double curved self-supporting structures. Latest research challenges have focused on the assembly of sophisticated brick structures and on sensor feedback systems for handling accuracy. We propose an alternative strategy to tackle tolerance handling in complex structures that rely on geometry. The intelligence of the system lies in two main aspects: a subdivision technique that incorporates the robot’s constraints as well as the structural equilibrium of the structure during each step of assembly, in order to omit the use of scaffolding; and a match between geometric information and the robot’s movements in a robot programming environment. As a proof of concept, we fabricated a portion of a full-scale double-curved structure. The structure was assembled without scaffolding by a portable KUKA KR10 on a randomly picked site. This project aims to demonstrate an easy and simple method for robotic assembly that enables the realization of digitally generated complex geometries as concrete complex structures.
keywords	Robotic Assembly, Self-supporting Structure, On-site Assembly, Double Curvature, Construction Tolerances
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	ecaade2015_279
id	ecaade2015_279
authors	Baquero, Pablo, Giannopoulou, Effimia and Cavazos, Jaime
year	2015
title	Strategies for Metallic Vault Structures - Aluminium Composite Panels Used as Structural Elements
doi	https://doi.org/10.52842/conf.ecaade.2015.2.169
source	Martens, B, Wurzer, G, Grasl T, Lorenz, WE and Schaffranek, R (eds.), Real Time - Proceedings of the 33rd eCAADe Conference - Volume 2, Vienna University of Technology, Vienna, Austria, 16-18 September 2015, pp. 169-176
summary	This article explains parametric, fabrication and teaching strategies used during a workshop for constructing a full scale, self supporting, vault metal structure realized with parametric manufacturing methods. The key aim is to construct a small size, easy assembled and transportable pavilion, while focusing on new design and construction methods of a façade system in which the structure, joint and skin will integrate functions in a unifying structural system. For the investigation, we explore materials commonly used in façade industry, such as aluminum profiles and aluminium composite panels (ACP).
wos	WOS:000372316000021
series	eCAADe
email
last changed	2022/06/07 07:54

_id	ecaade2016_055
id	ecaade2016_055
authors	Baranovskaya, Yuliya, Prado, Marshall, Dörstelmann, Moritz and Menges, Achim
year	2016
title	Knitflatable Architecture - Pneumatically Activated Preprogrammed Knitted Textiles
doi	https://doi.org/10.52842/conf.ecaade.2016.1.571
source	Herneoja, Aulikki; Toni Österlund and Piia Markkanen (eds.), Complexity & Simplicity - Proceedings of the 34th eCAADe Conference - Volume 1, University of Oulu, Oulu, Finland, 22-26 August 2016, pp. 571-580
summary	Textiles are widely used in architecture for tensile structures, as they are lightweight and can easily span large distances. These structures typically require an external framework for a support. Inflatable structures are self-supporting but are limited to relatively simple forms or require complex and predetermined cut patterns. The development of an adaptive and programmable textile system with an integrative method for pneumatic activation would create a novel self-supporting structure with high degree of design and architectural potential. This creates a highly integrative hybrid system where the generic pneumatic membranes are constrained by the differentiated knitted textile skin that is stretched in several directions under air pressure. This allows for an innovative, lightweight, easily transportable design, where the preprogrammed knitting pattern defines the structure, geometry and formation, activated under pneumatic pressure.
wos	WOS:000402063700062
keywords	programming textiles; binary textiles; analogue computing; air inflation; grading textile properties
series	eCAADe
email
last changed	2022/06/07 07:54

_id	acadia12_199
id	acadia12_199
authors	Beorkrem, Chris ; Corte, Dan
year	2012
title	Zero-Waste, Flat-Packed, Tri-Chord Truss: Continued Investigations of Structural Expression in Parametric Design"
doi	https://doi.org/10.52842/conf.acadia.2012.199
source	ACADIA 12: Synthetic Digital Ecologies [Proceedings of the 32nd Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-62407-267-3] San Francisco 18-21 October, 2012), pp. 199-208
summary	The direct and rapid connections between scripting, modeling and prototyping allow for investigations of computation in fabrication. The manipulation of planar materials with two-dimensional CNC cuts can easily create complex and varied forms, volumes, and surfaces. However, the bulk of research on folding using CNC fabrication tools is focused upon surfaces, self-supporting walls and shell structures, which do not integrate well into more conventional building construction models. This paper attempts to explain the potential for using folding methodologies to develop structural members through a design-build process. Conventional building practice consists of the assembly of off-the-shelf parts. Many times, the plinth, skeleton, and skin are independently designed and fabricated, integrating multiple industries. Using this method of construction as an operative status quo, this investigation focused on a single structural component: the truss. Using folding methodologies and sheet steel to create a truss, this design investigation employed a recyclable and prolific building material to redefine the fabrication of a conventional structural member. The potential for using digital design and two-dimensional CNC fabrication tools in the design of a foldable truss from sheet steel is viable in the creation of a flat-packed, minimal waste structural member that can adapt to a variety of aesthetic and structural conditions. Applying new methods to a component of the conventional ‘kit of parts’ allowed for a novel investigation that recombines zero waste goals, flat-packing potential, structural expression and computational processes. This paper will expand (greatly) upon previous research into bi-chord truss designs, developing a tri-chord truss, which is parametrically linked to its structural moment diagram. The cross section of each truss is formed based on the loading condition for each beam. This truss design has been developed through a thorough series of analytical models and tests performed digitally, to scale and in full scale. The tri-chord truss is capable of resisting rotational failures well beyond the capacity of the bi-chord designs previously developed. The results are complex, and elegant expressions of structural logics embodied in a tightly constrained functional design.
keywords	Parametric Design , Structural Expression , Material constraints
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:54

_id	acadia20_226p
id	acadia20_226p
authors	Borhani, Alireza; Kalantar, Negar
year	2020
title	Interlocking Shell
source	ACADIA 2020: Distributed Proximities / Volume II: Projects [Proceedings of the 40th Annual Conference of the Association of Computer Aided Design in Architecture (ACADIA) ISBN 978-0-578-95253-6]. Online and Global. 24-30 October 2020. edited by M. Yablonina, A. Marcus, S. Doyle, M. del Campo, V. Ago, B. Slocum. 226-231
summary	With a specific focus on robotic stereotomy, two full-scale vault structures were designed to explore the potential of self-standing building structures made from interlocking components; these structures were fabricated with a track-mounted industrial-scale robot (ABB 4600). To respond to the economic affordances of robotic subtractive cutting, all uniquely shaped structural modules came from one block of material (48"" x96"" x36""). Through the discretization of curvilinear tessellated vault surfaces into a limited number of uniquely shaped modules with embedded form-fitting connectors, the project exhibited the potential for programming a robot to cut ruled surfaces to produce freeform shells of any kind. Representing nearly zero-waste construction, the developed technology can potentially be used for self-supporting emergency shelters and field medical clinics, facilitating easy shipping and speedy assembly. Without using any scaffolding, a few people can erect and dismantle an entire mortar-free structure at the construction site. The disassembled structure occupies minimal space in storage, and the structure’s pieces can be transported to the site in stacks. Robot milling is a common technique for removing material to transform a block into a sculptural shape. Unlike milling techniques that produce significant waste, we used a hotwire that sliced through a Geofoam block to create almost no waste pieces. Since the front side of every module was concurrent with the backside of the next one, such a decision allowed to operate just one cut per front side of each module. In this case, by having three cuts, two neighboring modules were fabricated. The form of the structure and its modules emerged from the constraints of the fabrication technique, aiming to establish a feedback loop between geometry, material, simulation, and tool. By cross-referencing geometric data across Grasshopper, a customized tessellation script was made to breakdown a vault into its modular ruled surface constructs.
series	ACADIA
type	project
email
last changed	2021/10/26 08:08

_id	acadia11_138
id	acadia11_138
authors	Buell, Samantha; Shaban, Ryan; Corte, Daniel; Beorkrem, Christopher
year	2011
title	Zero-waste, Flat Pack Truss Work: An Investigation of Responsive Structuralism
doi	https://doi.org/10.52842/conf.acadia.2011.138
source	ACADIA 11: Integration through Computation [Proceedings of the 31st Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA)] [ISBN 978-1-6136-4595-6] Banff (Alberta) 13-16 October, 2011, pp. 138-143
summary	The direct and rapid connections between scripting, modeling and prototyping allow for investigations of computation in fabrication. The manipulation of planar materials with two-dimensional CNC cuts can easily create complex and varied forms, volumes, and surfaces. However, the bulk of research on folding using CNC fabrication tools is focused upon surfaces, self-supporting walls and shell structures, which do not integrate well into more conventional building construction models.This paper attempts to explain the potential for using folding methodologies to develop structural members through a design-build process. Conventional building practice consists of the assembly of off-the-shelf parts. Many times, the plinth, skeleton, and skin are independently designed and fabricated, integrating multiple industries. Using this method of construction as an operative status quo, this investigation focused on a single structural component: the truss. A truss is defined as: “A triangulated arrangement of structural members that reduces nonaxial external forces to a set of axial forces in its members.” (Allen and Iano 2004)Using folding methodologies and sheet steel to create a truss, this design investigation employed a recyclable and prolific building material to redefine the fabrication of a conventional structural member. The potential for using digital design and two-dimensional CNC fabrication tools in the design of a foldable truss from sheet steel is viable in the creation of a flat-packed, minimal waste structural member that can adapt to a variety of aesthetic and structural conditions. Applying new methods to a component of the conventional ‘kit of parts’ allowed for a novel investigation that recombines zero waste goals, flat-packing potential, structural expression and computational processes.
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:54

_id	caadria2022_299
id	caadria2022_299
authors	Cui, Qiang, Zhang, Huikai, Pawar, Siddharth Suhas, Yu, Chuan, Feng, Xiqiao and Qiu, Song
year	2022
title	Topology Optimization for 3D-Printable Large-Scale Metallic Hollow Structures With Self-Supporting
doi	https://doi.org/10.52842/conf.caadria.2022.2.101
source	Jeroen van Ameijde, Nicole Gardner, Kyung Hoon Hyun, Dan Luo, Urvi Sheth (eds.), POST-CARBON - Proceedings of the 27th CAADRIA Conference, Sydney, 9-15 April 2022, pp. 101-110
summary	Design for Additive Manufacturing (DfAM), is a one of the most commonly used and foundational techniques used in the development of new products, and particularly those that involve large-scale metallic structures composed of hollow components. One such AM technique is Wire Arc Additive Manufacturing (WAAM), which is the application of robotic welding technology applied to Additive Manufacturing. Due to the lack of a simple method to describe the fabricating constraint of WAAM and the complex hollow morphology, which difficultly deploys topology optimization structural techniques that use WAAM. In this paper, we develop a design strategy that unifies ground-structure optimization method with generative design that considers the features of hollow components, WAAM overhang angle limits and manufacturing thickness limits. The method is unique in that the user can interact with the design results, make changes to parameters, and alter the design based on the user‚s aesthetic or specific manufacturing setup needs. We deploy the method in the design and 3D printing of an optimized Electric Vehicle Chassis and successfully test in under different loading conditions.
keywords	Topology optimization, Generative design, Self-supporting, Hollow structures, Metallic 3D printing, SDG 12
series	CAADRIA
email
last changed	2022/07/22 07:34

_id	2006_234
id	2006_234
authors	Donath, Dirk and Christian Tonn
year	2006
title	Complex design strategies using building information models - Evaluation and interpretation of boundary conditions, supported by computer software
doi	https://doi.org/10.52842/conf.ecaade.2006.234
source	Communicating Space(s) [24th eCAADe Conference Proceedings / ISBN 0-9541183-5-9] Volos (Greece) 6-9 September 2006, pp. 234-243
summary	The choice of a chord and its execution should be regarded as a must and not left to arbitrary wish or superficial speculation. (Johannes Itten, 1961) The paper describes a modular concept for the IT-support of planning practice using BIM (Building Information Modelling) and a parameterized building model. The platform used is the modularized software concept for architectural planning in existing built contexts (prototype software FREAK). The current progress in the development of a reasoned support of planning tasks is described in this paper in more detail. The system consists of a series of software prototypes which are linked to the BIM, utilize the specific data within and demonstrate the value of a consistent and extendable CAD-model. The “Colored Architecture” software prototype is one such design-support module of the software platform and enables the designer to experiment with the parameters colour, light and materials in architectural space. This module supports experimentation, assessment and realization of colours and materials in the architectural design process on a new quality. For instance, the integration of “live radiosity” light simulation allows a qualified and interactive assessment and evaluation of colours and materials in near-real lighting conditions. The paper also details further software prototypes, modules and concepts including building surveying and the design of self-supporting domed structures.
keywords	Design; Parameterized Building Information Modelling; Plausibility; Planning Support; Colour, Material and Light Design
series	eCAADe
email
last changed	2022/06/07 07:55

_id	cf2019_050
id	cf2019_050
authors	Erdine, Elif ; Giulio Gianni, Angel Fernando Lara Moreira, Alvaro Lopez Rodriguez, Yutao Song and Alican Sungur
year	2019
title	Robot-Aided Fabrication of Light-Weight Structures with Sheet Metal Expansion
source	Ji-Hyun Lee (Eds.) "Hello, Culture!" [18th International Conference, CAAD Futures 2019, Proceedings / ISBN 978-89-89453-05-5] Daejeon, Korea, p. 433
summary	This paper presents a novel approach for the creation of metal lightweight self-supporting structures through the employment of metal kerfing and robotic sheet panel expansion. Research objectives focus on the synthesis of material behavior on a local scale and the structural performance on a global scale via advanced computational and robotic methods. There are inherent structural properties to expanded metal sheets which can be employed to achieve an integrated building system without the need for a secondary supporting structure. A computational workflow that integrates Finite Element Analysis, geometrical optimization, and robotic toolpath planning has been developed. This workflow is informed by the parameters of material experimentation on sheet metal kerfing and robotic sheet metal expansion on the local panel scale. The proposed methodology is applied on a range of panels with a custom-built robotic fabrication setup for the design, fabrication, and assembly of a one-to-one scale working prototype.
keywords	Robotic fabrication, Robotic sheet metal expansion, Light-weight structure, Metal kerfing, Metal expansion
series	CAAD Futures
email
last changed	2019/07/29 14:18

_id	ecaade2017_044
id	ecaade2017_044
authors	Fernando, Shayani, Reinhardt, Dagmar and Weir, Simon
year	2017
title	Simulating Self Supporting Structures - A Comparison study of Interlocking Wave Jointed Geometry using Finite Element and Physical Modelling Methods
doi	https://doi.org/10.52842/conf.ecaade.2017.2.177
source	Fioravanti, A, Cursi, S, Elahmar, S, Gargaro, S, Loffreda, G, Novembri, G, Trento, A (eds.), ShoCK! - Sharing Computational Knowledge! - Proceedings of the 35th eCAADe Conference - Volume 2, Sapienza University of Rome, Rome, Italy, 20-22 September 2017, pp. 177-184
summary	Self-supporting modular block systems of stone or masonry architecture are amongst ancient building techniques that survived unchanged for centuries. The control over geometry and structural performance of arches, domes and vaults continues to be exemplary and structural integrity is analysed through analogue and virtual simulation methods. With the advancement of computational tools and software development, finite and discrete element modeling have become efficient practices for analysing aspects for economy, tolerances and safety of stone masonry structures. This paper compares methods of structural simulation and analysis of an arch based on an interlocking wave joint assembly. As an extension of standard planar brick or stone modules, two specific geometry variations of catenary and sinusoidal curvature are investigated and simulated in a comparison of physical compression tests and finite element analysis methods. This is in order to test the stress performance and resilience provided by three-dimensional joints respectively through their capacity to resist vertical compression, as well as torsion and shear forces. The research reports on the threshold for maximum sinusoidal curvature evidenced by structural failure in physical modelling methods and finite element analysis.
keywords	Mortar-less; Interlocking; Structures; Finite Element Modelling; Models
series	eCAADe
email
last changed	2022/06/07 07:50

_id	ecaadesigradi2019_116
id	ecaadesigradi2019_116
authors	Fernando, Shayani
year	2019
title	Collaborative Crafting of Interlocking Structures in Stereotomic Practice
doi	https://doi.org/10.52842/conf.ecaade.2019.2.183
source	Sousa, JP, Xavier, JP and Castro Henriques, G (eds.), Architecture in the Age of the 4th Industrial Revolution - Proceedings of the 37th eCAADe and 23rd SIGraDi Conference - Volume 2, University of Porto, Porto, Portugal, 11-13 September 2019, pp. 183-190
summary	Situated within the art of cutting solids (stereotomy) and the evolution of machine tools; this research will investigate subtractive fabrication in relation to robotic carving of stone structures. The advancement of the industrial revolutions in the mid to late 19th century saw the rise of new building techniques and materials which were primarily based on structural steel construction. The modern aesthetic of the time further diminished the place of traditional stonework and ornamentation in modern structures within the building arts. This paper will focus on the design and fabrication of three sculptural dry-stone modular prototypes investigating interlocking self-supporting structures in stone. Examining the value of robotic technologies in the design and construction process in relation to collaborative crafting of the hand and machine. Accommodating for material tolerances which are a major factor in this research. Interrogating the value of robotic crafting with material implications and exploring the role of the artisan in machine crafted architectural components.
keywords	Collaborative; Crafting; Interlocking; Structures; Robotic Fabrication; Digital Stone
series	eCAADeSIGraDi
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last changed	2022/06/07 07:50

_id	caadria2023_62
id	caadria2023_62
authors	Huang, Shuyi, Xu, Weiguo and Yin, Yudong
year	2023
title	Improving the Overhang of 3D-printed Concrete Shells by Wrinkle Structures
doi	https://doi.org/10.52842/conf.caadria.2023.2.301
source	Immanuel Koh, Dagmar Reinhardt, Mohammed Makki, Mona Khakhar, Nic Bao (eds.), HUMAN-CENTRIC - Proceedings of the 28th CAADRIA Conference, Ahmedabad, 18-24 March 2023, pp. 301–310
summary	The labour shortage is impacting the construction industry globally, and 3D concrete printing (3DCP) technology is considered a solution for such an issue by using robots instead of manpower in building construction. However, due to the unstable mechanical properties of the fresh-state concrete, current 3DCP building forms exclude a massive number of options, one of them being the overhang shape. Therefore, this paper introduces bionic wrinkles to improve the overhang of 3DCP shell prototypes and demonstrates the feasibility of this idea through three groups of buckling simulations. This study proves that surface wrinkles can improve the in-process mechanical properties as well as the overhang capacity of shell structures. In the best scenario, the original design which only reached 30° overhang can be promoted to 77.5°. Besides, the applications of all wrinkle types are robust.
keywords	3D concrete printing, bio-designs, overhang structure, self-supporting printing, fresh-state concrete, surface wrinkle
series	CAADRIA
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last changed	2023/06/15 23:14

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