 |
[email protected] |
 |
3275638434 |
 |
 |
| Paper Publishing WeChat |
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Fábio André Frutuoso Lopes, Fernando Artur Nogueira Silva, Romilde Almeida de Oliveira and Romildo Alves Berenguer
Full-Text PDF
XML 963 Views
DOI:10.17265/1934-7359/2016.05.005
Department of Civil Engineering, Catholic University of Pernambuco, Recife 51110-200, Brazil
The design of tubular steel scaffold-type shoring is usually performed by calculating the load capacity of the elements, taking into account their axial strength, mainly. Geometric stiffness effects and changes in the stiffness of connections are seldom considered. This paper assesses the stability of tubular steel shores using experimental and numerical approaches that take into account geometric nonlinearities as well as the features of the elements used to make the link between the steel tubes (pressed double coupler—right angle). The increase in overall stiffness generated by diagonal bars used in the analyzed models was examined. The results obtained show the importance of using P-delta analyses in this kind of structure in order to evaluate structure’s overall stability even when compressive stresses are within acceptable ranges of code limits.
Tubular steel shores, global stability, semi-rigid connections, P-delta analyses.