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Failure mechanism and practical load-carrying capacity calculation method of welded hollow spherical joints connected with circular steel tubes

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Failure mechanism and practical load-carrying capacity calculation method of welded hollow spherical joints connected with circular steel tubes

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dc.contributor.author XUE, Wanli
dc.contributor.author YANG, Lianping
dc.contributor.author ZHANG, Qilin
dc.contributor.author WANG, Pingshan
dc.contributor.editor Domingo Cabo, Alberto es_ES
dc.contributor.editor Lázaro Fernández, Carlos Manuel es_ES
dc.date.accessioned 2009-12-11T22:44:29Z
dc.date.available 2009-12-11T22:44:29Z
dc.date.issued 2009-12-11T22:44:29Z
dc.identifier.isbn 978-84-8363-461-5
dc.identifier.uri http://hdl.handle.net/10251/6601
dc.description p. 2679-2691 en_EN
dc.description.abstract According to the ultimate load-carrying capacity obtained from finite element analysis, data point is designed based on orthogonal method, utilizing F-inspection from mathematical statistics to perform multi-parameter and single-factor significance analysis of compressive load capacity. The result indicates that yield strength of spherical material fy are the critical factor that influence the load carrying capacity of hollow spherical joint, as well as wall thickness t, outer diameter of sphere D and outer diameter of steel tube d. Comparatively destructive experiments on 8 typical full-scale joints made from two different graded material, Q235B and Q345B, were conducted to understand directly the structural behavior and the collapse mechanism of the joint, and also to validate the finite element analysis and parameter study. Finally, the simplified theoretical solution is also derived for the loading-carrying capacity of the joint based on the punching shear failure model, and the basic form for the design equation is obtained. By applying the results from the simplified theoretical solution, finite element analysis and experimental study, and utilizing the theory of mathematic statistics and regression analysis, the practical calculation method is established for the load-carrying capacity of the joints subjected to axial compressive forces. By the check of large amount of experiment data, the calculation result obtained from this formula is consistent with experiment result, and the practical formula has safety reserve meeting the regulation in national codes. The achievements from this study can be applied for direct design , and also provide a reference for the revision of relevant design codes. en_EN
dc.language Inglés en_EN
dc.publisher Editorial Universitat Politècnica de València es_ES
dc.relation.ispartof Symposium of the International Association for Shell and Spatial Structures (50th. 2009. Valencia). Evolution and Trends in Design, Analysis and Construction of Shell and Spatial Structures : Proceedings en_EN
dc.rights Reserva de todos los derechos en_EN
dc.subject Welded hollow spherical joint en_EN
dc.subject Circular steel tube en_EN
dc.subject Nonlinear finite element anlysis en_EN
dc.subject Destructive mechanism en_EN
dc.subject Load-carrying capacity en_EN
dc.subject Influencing parameter en_EN
dc.subject Experimental research en_EN
dc.subject Practical calculation method en_EN
dc.title Failure mechanism and practical load-carrying capacity calculation method of welded hollow spherical joints connected with circular steel tubes en_EN
dc.type Comunicación en congreso en_EN
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Xue, W.; Yang, L.; Zhang, Q.; Wang, P. (2009). Failure mechanism and practical load-carrying capacity calculation method of welded hollow spherical joints connected with circular steel tubes. Symposium of the International Association for Shell and Spatial Structures. Editorial Universitat Politècnica de València. http://hdl.handle.net/10251/6601. es_ES
dc.relation.conferencename Symposium of the International Association for Shell and Spatial Structures es_ES
dc.relation.conferencedate 2009 es_ES
dc.relation.conferenceplace Valencia es_ES


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