La presencia de puentes grúa en naves industriales significa un esfuerzo adicional para la estructura de la nave debido a las solicitaciones de carga adicionales que ésta representa. Así, se requiere un análisis específico y completo para diseñar una estructura resistente a los esfuerzos generados por la carga proveniente del puente-grúa. El objetivo de este artículo es elaborar un documento que sirva como guía para un correcto análisis y diseño de la viga que sostiene al puente-grúa, conocida como viga carrilera; lo anterior a partir de la comparación de normativas de algunos países latinoamericanos y la norma norteamericana. Este análisis incluye el conjunto de esfuerzos generados por la operación de un puente-grúa. Finalmente, la propuesta o método se validará con un ejemplo de puente grúa de capacidad de izaje de hasta 10 toneladas. / The presence of travelling cranes in industrial buildings means an additional effort for the structure of the ship due to the additional loads. Thus, a specific and complete analysis is required, both static and dynamic, to design a structure resistant to the efforts generated by the load coming from the travelling crane. The objective of this article is to elaborate a document that serves as a guide for a correct analysis and design of the beam that supports the travelling crane, known as the rail beam; from the comparison of regulations of some Latin American countries and the North American norms. This analysis includes the set of efforts generated by the operation of a bridge crane. Finally, the proposal or method will be validated with an example of a crane lifting capacity of up to 10 tons. / Trabajo de investigación

Recently the most often used crane runway beams designed from rolled HEA sections as multispan beams is the topic of this doctoral thesis. It deals with the study of real stress in the cross section focused on local stress analysis in the web of cross section due to eccentricities of wheal load and on the problems of stress analysis above the middle support of multi-span beams. First, the outline of crane supporting structures, currently used methods of implementation and available stress analysis methods are summarized. Than two parametrical studies of crane runway beam design depending on statical determination of the beam, crane span, crane wheelbase and chosen quality of structural steel are presented. Following part of thesis contains the stress analysis of crane runway two-span beam in its continuous part above the middle support on implemented crane supporting structure. Experiment of crane runway two-span beams actions above the middle support are described in the last part of the thesis. Closing part of thesis summarizes results.

Industrial hall with storage outbuilding. The length of the hall is 72 meters and width of 30 meters. The main hall has a span 24 meters and the outbuilding has a span 6m. The distance between primary steel frame is 6 meters. The height of the main hall is 10.7 meters and a height of outbuilding is 13.0 metres. The roof is flat with roof slope of 3.5% the main hall and 8.75% outbuilding. The structural system of the hall's bar structure. Primary steel frame is designed as a steel frame rafter with eaves haunch. In the roof structure are designed purlins. The stability of the structure is secured by roof braces and longitudinal braces. The hall is pin-supported on the foundation pad. The hall is clad wall and roof panels PUR. Main hall is equipped with a bridge crane with capacity of 8 tons.