Stress-strain state of the joints in reliability computation of suspension rod roofs
V. F. Mushchanova, H. Bartolob, Yu. N. Priadkoa
a Donbas National Academy of Civil Engineering and Architecture
b Polytechnic Institute of Leiria
Annotation: Due to the lack of investigations of reliability estimating of suspension roofs in common with their joints, that lead to urgency of estimation of stressed-strained state and reliability of welded joints of roofs and creating recommendations concerning such structures on the basis of obtained data. Due to this the reliability of large-span suspension roofs was investigated and a novel fundamental approach is proposed for the determination of joints’ reliability in the design phase of suspension rod roofs. The supporting joints of rigid threads to the external and internal contour, intermediate joints of the top and lower chords of supporting threads, joints of vertical and horizontal links to the supporting thread of the roof were used as design data. To estimate the joints’ reliability the logic and probabilistic methods were used for this analysis conjointly with the methods based on mathematical statistics. The structural design of the reliability of suspension roof joints are mainly described by sequential schemes, including parallel connections of dependent elements, corresponding to multi-element connections. The correlation between the elements of structural schematic joint drawings, due to the generality of strength of the steel, allows to reduce the quantity of elements and increase the final reliability level of joints.
Keywords: suspension roof joints, rigid threads, reliability indices, stressed-strained state, logic and probabilistic methods.
Pages: 25-37.
Link for citation: Mushchanov, V. F.; Bartolo, H.; Priadko, Yu. N. Stress-strain state of the joints in reliability computation of suspension rod roofs. – Text : electronic. – In: Metal Constructions. – 2015. – Vol. 21, N 1. – Р. 25-37. – URL: https://donnasa.ru/publish_house/journals/mk/2015-1/03_mushchanov_bartolo_priadko.pdf (date of access: 03.07.2024). (in Russian)
Vol. 21, N 1 (2015)Journal: Metal Constructions
Publish house: Donbas National Academy of Civil Engineering and Architecture