Digital and automatic design of free-form single-layer grid structures

Li, Zhi; Ye, Jun; Gao, Boqing; Wang, Qisheng; Quan, Guan; Shepherd, Paul

doi:10.1016/j.autcon.2021.104025

Cited by 13 publications

(4 citation statements)

References 41 publications

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“…The real design and manufacturing process is normally composed of three stages: Computer Aided Design (CAD), Computer-aided Manufacturing (CAM) and Computer Numerical Control (CNC). In the CAD stage, engineers and/or architects create smooth grid over free-form surfaces using relevant software that certain calculation algorithm is implemented [38,39]. Structure engineers then calculate the member and connection geometries, such as the length of the I sections, the I section dimensions, the front plate thickness, the side plate thickness, the sleeve thickness, the bolt diameters and the bolt row distances, according to the loading conditions.…”

Section: Brief Descriptions Of the New Assembling Jointmentioning

confidence: 99%

Experimental and numerical study on the performance of new prefabricated connections for free-form grid structures

Quan

Jia-feng

et al. 2022

Structures

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Section: Brief Descriptions Of the New Assembling Jointmentioning

confidence: 99%

Experimental and numerical study on the performance of new prefabricated connections for free-form grid structures

Quan

Jia-feng

et al. 2022

Structures

Self Cite

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“…In this process, the rational use of computer environmental protection technology can carry out environmental protection management for the entire regional power grid system, rather than the control of a single power transmission and transformation project. [1][2][3]At present, the domestic power grid enterprises mainly include the State grid Company and the Southern Power Grid Company. In the process of the country attaching great importance to green economic development, the two have raised green development to a strategic height and built a relatively complete environmental protection management system, among which S-PDCA cycle management system is one of the most commonly used forms of environmental protection work in power grid enterprises at present.…”

Section: Introducionmentioning

confidence: 99%

Analysis of environmental protection management system of power grid enterprises based on green development

Fan,

Gong,

Liu

et al. 2023

AETR

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Under the development trend of economic globalization, facing the opportunities and challenges brought by the construction and development of countries around the world, how to fully implement the concept of green development, actively build the environmental protection management system of power grid enterprises, and correctly serve the construction of ecological civilization and beautiful China has become the main issue explored by scholars in the power grid industry. Therefore, on the basis of understanding the current situation of environmental protection management of domestic power grid enterprises, this paper, through comparative analysis of the characteristics of environmental management of foreign power enterprises, deeply understand the content of domestic ecological civilization system reform, and finally put forward the construction measures of environmental protection management system of power grid enterprises based on green development.

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“…The possibility of manufacturing WAAM outcomes up to several meters of span demonstrated the potential use of this technology to fabricate steel structures [5,6]. The combination of WAAM technology with computational design tools for free-form design could also allow the realisation of new optimized structures [7,8]. However, the reliable design of WAAM structures must be based on the knowledge of the main mechanical properties of the elements, which are largely influenced by the WAAM process parameters, microstructure and inherent geometrical irregularities of the printed pieces.…”

Section: Introductionmentioning

confidence: 99%

Wire‐and‐Arc Additive Manufacturing for lattice steel structures: overview of the experimental characterization on dot‐by‐dot rods

Arrè,

Laghi,

Palermo

et al. 2023

ce papers

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With the advent of a new arc‐based additive manufacturing (AM) process, referred to as Wire‐and‐Arc Additive Manufacturing (WAAM), the scale of the metal printed parts increased up to several meters, thus becoming suitable for large‐scale applications in marine, aerospace and construction sectors. However, specific considerations in terms of geometrical and mechanical properties ought to be made in order to effectively use the printed outcomes for structural engineering purposes. The introduction of the novel printing strategy referred to as “dot‐by‐dot”, consisting in successive drops of molten metal, enabled the use of WAAM to realize complex lattice structures, made by continuous grids of WAAM rods. Nevertheless, their proper design requires an accurate evaluation of the influence of the non‐negligible inherent geometrical irregularities on the mechanical response of the rods. Hence, extensive experimental work is needed in order to evaluate the mechanical response of “dot‐by‐dot” WAAM rods with geometrical imperfections. The present study focuses on the mechanical characterization of dot‐by‐dot WAAM‐produced 304L stainless steel intersected rods, constituting the basic units of grid and lattice structures. The mechanical response of the specimens is assessed through tensile experimental tests conducted on two‐ways planar nodes obtained from the intersection of two rods with different angles, hereafter also refereed to as crossed rods. The experimental results are then compared with tensile tests on single rods, to quantify the influence of the intersection angle in the structural response of the lattice structures.

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Digital and automatic design of free-form single-layer grid structures

Cited by 13 publications

References 41 publications

Experimental and numerical study on the performance of new prefabricated connections for free-form grid structures

Experimental and numerical study on the performance of new prefabricated connections for free-form grid structures

Analysis of environmental protection management system of power grid enterprises based on green development

Wire‐and‐Arc Additive Manufacturing for lattice steel structures: overview of the experimental characterization on dot‐by‐dot rods

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