Bending Moment Control and Weight Optimization in Space Structures by Adding Extra Members in the Optimal locations

• Autorzy: Manguri Ahmed , Saeed Najmadeen , Szczepański Marcin , Jankowski Robert

Identyfikatory

DOI

10.12913/22998624/169573

• Języki publikacji: EN

Abstrakty

EN

This paper investigates the reduction of bending moment in critical members by adding some extra members in the optimum location. Instead of enlarging the size of members to resist the moment, eight additional members are added in the optimum location to reduce the bending moment in the critical members. The total weight of the proposed structure with extra members is less than that of the original structure that resists the induced bending moment. Moreover, the location of the additional bars significantly reduces the nodal displacements. This paper investigates the effect of placing extra members on vertically and/or horizontally loaded egg-shaped single-layer frames. An egg-shaped structure is designed based on the maximum induced moment; in such frames, the bending moment is the dominant internal force. Then some extra members are suggested to be added to the structure to reduce the maximum bending moment to the lowest possible value; thus, the designed cross-sectional area is minimized. Furthermore, the optimized structure's total weight and shape deformation is less than the ordinary structure's. The study results show that the extra bars' location depends on the loadings' direction. Moreover, the weight of the horizontally loaded egg-shaped structure can be optimized by up to 28%. The results were verified by MATLAB and SAP2000 software.

Słowa kluczowe

EN

size optimization; weight optimization; additional bars; bending moment control; egg-shaped structure

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2023
• Tom: Vol. 17, no 4
• Strony: 313--324
• Opis fizyczny: Bibliogr. 43 poz., fig., tab.

Twórcy

autor

Manguri Ahmed

• Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Gdansk, Poland

• https://orcid.org/0000-0002-3789-0006

autor

Saeed Najmadeen

• Civil Engineering Department, University of Raparin, Rania, Kurdistan Region, Iraq

• https://orcid.org/0000-0001-7074-0256

autor

Szczepański Marcin

• Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Gdansk, Poland

• https://orcid.org/0000-0001-6049-2391

autor

Jankowski Robert

• Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Gdansk, Poland

• https://orcid.org/0000-0002-6741-115X

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).