RT Journal Article SR 00 A1 López César, Isaac T1 La aportación estructural del Crystal Palace de la Exposición Universal de Londres 1851. Una ampliación del enfoque histórico tradicional. The structural contribution of the Crystal Palace to the 1851 Great Exhibition held in London. An extension of the traditional historical approach. JF RITA Revista Indexada de Textos Académicos YR 2014 FD 2014-10 IS 2 SP 76 OP 83 K1 Crystal Palace K1 World Fairs K1 Joseph Paxton K1 architecture K1 structure K1 portal frame K1 Exposiciones Universales K1 arquitectura K1 estructura K1 pórtico rígido K1 structural surveys AB The aim of this paper is to establish a historical line from the first architectural application of structural elements made of industrial iron for roofs and multi-storey buildings to the first application of portal frame in a multi-storey building. With this in mind, the Crystal Palace built for the 1851 Great Exhibition held in London is revealed as the point of inflexion in the transition from metallic lattice typology, which is stabilized by perimeter masonry walls, to modern portal frame applied to the multi-storey building. Historical connections are detected in this transition giving value to some buildings which have remained on the side lines of the conventional architectural historiography. We can therefore expand on the traditional historical focus of the achievements of the Chicago School, highlighting and historically connecting prior events. PB Redfundamentos SN 2340-9711 LK http://openarchive.icomos.org/id/eprint/1511/ UL http://www.redfundamentos.com/rita/es/