{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T15:05:27Z","timestamp":1753887927715,"version":"3.41.2"},"reference-count":60,"publisher":"FapUNIFESP (SciELO)","issue":"1","license":[{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Foundation for Science and Technology's","award":["UIDB\/04625\/2020"],"award-info":[{"award-number":["UIDB\/04625\/2020"]}]},{"name":"Foundation for Science and Technology's","award":["# 141287\/2019-5"],"award-info":[{"award-number":["# 141287\/2019-5"]}]},{"DOI":"10.13039\/501100003593","name":"CNPq","doi-asserted-by":"crossref","award":["UIDB\/04625\/2020"],"award-info":[{"award-number":["UIDB\/04625\/2020"]}],"id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100003593","name":"CNPq","doi-asserted-by":"crossref","award":["# 141287\/2019-5"],"award-info":[{"award-number":["# 141287\/2019-5"]}],"id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Lat. Am. j. solids struct."],"abstract":"<jats:p>Abstract The objective of this research is to present practical solutions for improving structural performance of thin-walled conic polygonal monopoles. The analysis encompasses computational simulations, analytical evaluation, and structural verification of reinforcements for openings and longitudinal folded stiffeners of flat walls. A benchmarked solution is derived from a design involving a 20-sided cold-formed steel polygonal section employed to support telecommunication antennas at a height of 40 meters. The structural verification is performed under the influence of wind loads, with particular attention to the commonly reported basic gust wind speed in Brazil. The conducted analysis encompasses: (i) wind-induced static equivalent dynamic behavior, (ii) parametric elastic buckling analysis, (iii) non-linear finite element analysis of reinforced openings, and (iv) direct strength method (DSM) performance evaluation of stiffened polygonal cross-sections. The importance of combining tailored numerical tools such as the finite strip and finite element methods, as well as wind-induced behavior, is demonstrated through the structural analysis results. In essence, the study's findings reveal the previously overlooked local-distortional buckling interaction in current design guidelines. Moreover, the research demonstrates that incorporating reinforcements and longitudinal stiffeners significantly enhances the flexural capacity of slender structures. Notably, the adoption of a single 4-fold (trapezoid) stiffener shape, per polygonal wall, emerges as a promising effective solution for enhancing the overall flexural capacity. Further full scale experimental structural tests and computational fluid dynamics should be considered for advanced structural analysis and improved design.<\/jats:p>","DOI":"10.1590\/1679-7825\/e8033","type":"journal-article","created":{"date-parts":[[2025,1,20]],"date-time":"2025-01-20T22:15:09Z","timestamp":1737411309000},"source":"Crossref","is-referenced-by-count":1,"title":["Assessment of reinforcements for enhancing structural performance of cold-formed steel polygonal conical poles for antennas support"],"prefix":"10.1590","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6317-6789","authenticated-orcid":false,"given":"Eduardo de Miranda","family":"Batista","sequence":"first","affiliation":[{"name":"Federal University of Rio de Janeiro,  Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3176-3006","authenticated-orcid":false,"given":"Jo\u00e3o Alfredo de","family":"Lazzari","sequence":"additional","affiliation":[{"name":"Universidade de Lisboa,  Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8385-3647","authenticated-orcid":false,"given":"Gustavo Yoshio","family":"Matsubara","sequence":"additional","affiliation":[{"name":"Federal University of Rio de Janeiro,  Brazil; State University of Maring\u00e1,  Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1448-7548","authenticated-orcid":false,"given":"Mich\u00e8le Schubert","family":"Pfeil","sequence":"additional","affiliation":[{"name":"Federal University of Rio de Janeiro,  Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5151-6451","authenticated-orcid":false,"given":"Renato Nascimento","family":"Elias","sequence":"additional","affiliation":[{"name":"Federal University of Rio de Janeiro,  Brazil"}]}],"member":"530","published-online":{"date-parts":[[2025]]},"reference":[{"year":"1988","series-title":"NBR 6123:1988 - Building Construction - Bases for Design of Structures - Wind Loads \u2013 Procedure","key":"ref1"},{"year":"2024","series-title":"NBR 8800:2024 \u2013 Design of Steel and Composite Structures for Buildings","key":"ref2"},{"year":"2010","series-title":"NBR 14762:2010 - Design of Cold-Formed Steel Structures","key":"ref3"},{"year":"2016","series-title":"S100-16 - North American Specification for the Design of Cold-Formed Steel Structural Members","key":"ref4"},{"issue":"4","key":"ref5","doi-asserted-by":"crossref","first-page":"777","DOI":"10.1080\/23748834.2021.1956837","article-title":"Assessing the level of compliance of telecommunication masts to locational planning standards towards harmonious and orderly city growth","volume":"6","author":"Amponsah E.","year":"2022","journal-title":"Cities Health"},{"year":"2013","series-title":"ANSYS Mechanical APDL Theory Reference","key":"ref6"},{"issue":"4","key":"ref7","doi-asserted-by":"crossref","first-page":"259","DOI":"10.1016\/0143-974X(91)90077-E","article-title":"Local buckling strength of closed polygon folded section columns","volume":"20","author":"Aoki T.","year":"1991","journal-title":"J Constr Steel Res"},{"year":"2018","series-title":"AS\/NZS 4600 - Cold-Formed Steel Structures","key":"ref8"},{"issue":"4","key":"ref9","doi-asserted-by":"crossref","first-page":"151","DOI":"10.1002\/cepa.1740","article-title":"Structural dynamic and buckling behaviour of steel cold\u2010formed polygonal conic pole for antennas support","volume":"5","author":"Batista E. de M.","year":"2022","journal-title":"ce\/papers"},{"key":"ref10","doi-asserted-by":"crossref","first-page":"235","DOI":"10.1016\/j.tws.2017.12.002","article-title":"GBTul 2.0 \u2212 A second-generation code for the GBT-based buckling and vibration analysis of thin-walled members","volume":"124","author":"Bebiano R.","year":"2018","journal-title":"Thin-Walled Structures"},{"key":"ref11","doi-asserted-by":"crossref","first-page":"222","DOI":"10.1002\/stco.201710027","article-title":"Plastic behaviour of polygonal hollow sections in bending","volume":"10","author":"Br\u00e4utigam K.","year":"2017","journal-title":"Steel Construction"},{"issue":"7","key":"ref12","doi-asserted-by":"crossref","first-page":"613","DOI":"10.1016\/0020-7403(69)90060-5","article-title":"The strength of thin-walled tubes formed from flat elements","volume":"11","author":"Bulson P. 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