A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effects of different snow load arrangements on steel silo roof structures
Large diameter steel silos usually require a beam structure to support rooftop inspection gangways and resist loads derived from the snow and wind actions. The existence of localized overloads caused by drifted snow on roofs as a consequence of the wind action has been reported in the literature. European standard EN 1991-1-3 also considers the need of taking into account asymmetric patterns for snow loads calculation. However, conical roofs are not included in the specific list of cases considered by this standard. The present work compares the normal stresses and displacements produced in a conical steel silo roof structure by applying balanced loads distributed on the whole roof and unbalanced loads applied on a roof sector. Experimental measurements and a three-dimensional beam model developed by the authors have been used to predict the stresses and vertical displacements of a metal silo roof structure measuring 18.34 m in diameter. The results show that the existence of an asymmetric load pattern produces higher normal stresses (up to 23%) and vertical displacements (up to 50%) than those derived from balanced loads, for any similar load per beam considered.
Effects of different snow load arrangements on steel silo roof structures
Large diameter steel silos usually require a beam structure to support rooftop inspection gangways and resist loads derived from the snow and wind actions. The existence of localized overloads caused by drifted snow on roofs as a consequence of the wind action has been reported in the literature. European standard EN 1991-1-3 also considers the need of taking into account asymmetric patterns for snow loads calculation. However, conical roofs are not included in the specific list of cases considered by this standard. The present work compares the normal stresses and displacements produced in a conical steel silo roof structure by applying balanced loads distributed on the whole roof and unbalanced loads applied on a roof sector. Experimental measurements and a three-dimensional beam model developed by the authors have been used to predict the stresses and vertical displacements of a metal silo roof structure measuring 18.34 m in diameter. The results show that the existence of an asymmetric load pattern produces higher normal stresses (up to 23%) and vertical displacements (up to 50%) than those derived from balanced loads, for any similar load per beam considered.
Effects of different snow load arrangements on steel silo roof structures
Sadowski, Adam J (author) / Chen, Jian-Fei (author) / Teng, Jin-Guang (author) / Gallego, Eutiquio (author) / Fuentes, Jose María (author) / Ramírez-Gómez, Alvaro (author) / Ayuga, Francisco (author)
Advances in Structural Engineering ; 21 ; 2507-2517
2018-12-01
Article (Journal)
Electronic Resource
English
silo , roof , drifted snow loads , full-scale tests , steel
CONSTRUCTION METHOD OF SILO ROOF SECTION, AND SILO ROOF STRUCTURE
| European Patent Office | 2018
Roof structure of prestressed silo, prestressed silo and construction method of roof structure
| European Patent Office | 2024
Cement silo middle column and cement silo roof mounting method
| European Patent Office | 2024
Direct measurement of roof snow load
| British Library Conference Proceedings | 1997