2026-04-27T19:56:03Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/760212025-07-30T07:54:07Zcom_10324_1167com_10324_931com_10324_894col_10324_1238

Limit analysis of 3D building structures Cacho Pérez, Mariano Estructuras de barras Análisis plástico Producción Científica In this work, a limit analysis of typical building frames is carried out, and the collapse load and collapse mechanism of 3D frames composed of slender steel structural elements under concentrated and uniformly distributed loads are calculated. To this end, the direct kinematic method and nonlinear optimization techniques are proposed to search for the collapse mechanism and determine the collapse load. This work has the advantage that the structure’s equilibrium equations are obtained through a completely systematic formulation of the problem of interest. In many cases, the case of uniformly distributed loads is simplified by equivalent point loads. However, this work verifies that the results differ in the cases of point loads and uniformly distributed loads, both qualitatively and quantitatively. 2025-06-18T10:32:28Z 2025-06-18T10:32:28Z 2025 info:eu-repo/semantics/article Journal of Constructional Steel Research, Volume 234, 2025, 109662, ISSN 0143-974X 0143-974X https://uvadoc.uva.es/handle/10324/76021 10.1016/j.jcsr.2025.109662 109662 234 Journal of Constructional Steel Research 234 eng https://www.sciencedirect.com/science/article/pii/S0143974X25003402 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ © 2025 The Author Attribution-NonCommercial-NoDerivatives 4.0 Internacional Elsevier SI