Connections placement optimization approach toward new prefabricated building systems

Baghdadi, Abtin; Heristchian, Mahmoud; Kloft, Harald

doi:10.1016/j.engstruct.2020.111648

Cited by 22 publications

(7 citation statements)

References 36 publications

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“…The horizontal joint structure in Figure 1(a) can greatly improve the seismic performance of the shear wall. Although the initial stiffness is slightly lower than that of the cast-in-situ type, its bearing performance is improved after the specimen is moved up [ 7 , 8 ].…”

Section: Mechanical Property Experiments and Data Simulation Analysismentioning

confidence: 99%

Mechanical Performance Test and Numerical Simulation Analysis of Building Steel Plate and Concrete Composite Structure

Liu

2022

International Journal of Analytical Chemistry

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The study aims to continuously improve the level of the construction industry, such as the improvement of construction capacity and efficiency and reduction of the project cost and construction period, and find a specific way to improve the development of the construction industry. First, the study analyzes the research status of mechanical properties of horizontal joints, vertical joints, and the overall structure of worldwide prefabricated buildings. Next, the built-in steel fabricated concrete shear wall model is established. Moreover, the quasi-static experimental analysis is conducted on the joints of the fabricated shear wall with built-in section steel. The finite element software is used to analyze the numerical simulation test of the new built-in shear wall. According to the relevant test parameters, the finite element model is constructed, and the parameters are set. Finally, the shear wall model is established and tested by a simulation experiment, and the simulation results are compared with the numerical simulation results. The final results show that the proposed connection mode of the reinforced skeleton and new fabricated joints improves the stability of prefabricated buildings. The use of the quasi-static test to test the relevant performance parameters has a short calculation time, high efficiency, and high parameter optimization accuracy. It can better simulate the actual working conditions and the actual stress-strain and damage failure conditions. Moreover, the conclusion is drawn that the shear wall structure with steel plate concrete has good ductility and deformation capacity. The study has a certain reference significance for the construction optimization of steel plate concrete prefabricated buildings and related research in the future.

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Section: Mechanical Property Experiments and Data Simulation Analysismentioning

confidence: 99%

Mechanical Performance Test and Numerical Simulation Analysis of Building Steel Plate and Concrete Composite Structure

Liu

2022

International Journal of Analytical Chemistry

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“…Die durch die präzise subtraktive Fertigung hergestellten Dry Joints können anschließend auf ihre Festigkeit geprüft und z. B. in SC3DP‐Bauteilen integriert werden (Bild 4) [12–16]. Das Teilprojekt A07 Strukturdesign, WAAM‐basierte Fertigungsmethoden und Bauteilprüfung von komplexen, individualisierten Stahlbauteilen.…”

Section: Vorhandende Amc‐forschungsinfrastrukturunclassified

Die Forschungsinfrastruktur des SFB TRR 277 AMC Additive Fertigung im Bauwesen

et al. 2022

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Die globalen Herausforderungen unserer Zeit sind der Klimawandel, das Bevölkerungswachstum und die Reduzierung des Ressourcenverbrauchs. Für das Bauwesen bedeutet dies, in den kommenden Jahrzehnten mehr zu bauen und gleichzeitig den Ressourcenverbrauch zu verringern und weniger Emissionen auszustoßen. Die handwerklich organisierte Bauindustrie ist weder technologisch noch personell darauf vorbereitet, diese Herausforderungen ökonomisch und ökologisch zu bewältigen. Hier setzt der Sonderforschungsbereich TRR 277 Additive Manufacturing in Construction (AMC) der beiden Universitäten TU Braunschweig und TU München mit seiner Grundlagenforschung an. Der AMC betrachtet die additive Fertigung als eine digitale Schlüsseltechnologie für das Bauwesen, denn diese vereint die Vorteile von automatisierter und individualisierter Fertigung. Bei der additiven Fertigung werden die Bauteile ohne Formenbau schichtweise aufgebaut. Dies schafft grundlegend neue Anforderungen an Werkstoffe, Verfahrenstechniken sowie an Design und Konstruktion und kann nur in hochgradig interdisziplinären Teams von Wissenschaftler:innen aus den Bereichen des Bauwesens und des Maschinenbaus erforscht werden. Die Basis für die werkstoffübergreifende Erforschung unterschiedlicher additiver Fertigungstechnologien für die Anwendung im Bauwesen stellt die über viele Jahre systematisch aufgebaute Forschungsinfrastruktur im Bereich der digitalen Baufabrikation dar. An seinen beiden Standorten, der TU Braunschweig und der TU München, kann der AMC auf innovativste Forschungseinrichtungen zurückgreifen. Darunter befinden sich sowohl DFG‐geförderte Forschungsgroßgeräte wie das Digital Building Fabrication Laboratory (DBFL) und das RoboCoop3D als auch eine Vielzahl eigenfinanzierter innovativer Forschungsgeräte an beiden Standorten. Die AMC‐Forschungsinfrastruktur wird im Laufe des Forschungsprojekts stetig ausgebaut und erweitert. Der vorliegende Beitrag stellt die bestehende sowie die in Anschaffung und Planung befindliche Forschungsinfrastruktur vor.

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“…This can delay subsequent work and thus the progress of construction. Alternative joining methods are, e.g., (pre-stressed) dry joints [3,4], shear [5] or tension joints [6]. An overview of different approaches (for modular structures) is given in [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Sensitivity-Based Permutation to Balance Geometric Inaccuracies in Modular Structures

Forman,

Ahrens,

Mark

2024

Sustainability

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In modular structures, inaccuracies of the modules superimpose over the entire structure. Depending on the placement of the modules, these inaccuracies have (different) effects on stresses and total deformations. Especially for structures with many individual modules, it is favorable to place them according to their influence. To cover structural diversity, column-, beam-, and wall-like modular structures made from plane modules are investigated. In numerical simulation, geometric inaccuracies are applied via an equivalent temperature approach, which allows almost arbitrary nodal deviations of the modules. With the elementary effects method, the sensitivities of the modules’ inaccuracies regarding their structural impact can be determined with minimal computational effort. On a predefined control node, the overall structural inaccuracies are examined in a simplified manner. Column-like structures experience higher deformations due to inclination than beam-like or wall-like structures. For column-like, the bottommost modules are decisive for the overall inaccuracy, as they contribute significantly to the inclination. By contrast, modules at the supports are identified as particularly sensitive for beam- and wall-like structures. Controlling module placement towards their mean absolute influence, the deformation at the control node is mathematically reduced by at least 43% compared to random placement. Thereby, even modules that do not comply with tolerance requirements for structural components can be used in areas of low influence for a sustainable and low-waste design.

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Connections placement optimization approach toward new prefabricated building systems

Cited by 22 publications

References 36 publications

Mechanical Performance Test and Numerical Simulation Analysis of Building Steel Plate and Concrete Composite Structure

Mechanical Performance Test and Numerical Simulation Analysis of Building Steel Plate and Concrete Composite Structure

Die Forschungsinfrastruktur des SFB TRR 277 AMC Additive Fertigung im Bauwesen

Sensitivity-Based Permutation to Balance Geometric Inaccuracies in Modular Structures

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