Impact assessment of shaft deformation on settlement efforts value in horizontal cross-section of 100 metre high chimney
V. I. Korsun, T. N. Vinogradova, R. S. Efimenko
Donbas National Academy of Civil Engineering and Architecture
Annotation: The settlement efforts results in the shaft ring cross-sections and displacements on a vertical of a longitudinal axis of a 100 metre high chimney against the wind load effect with regard to the structural weight have been presented. The design forces comparison obtained by the engineering technique of the Temporary Building Codes-286-72 and the Finite Elementary Analyses by the software engineering «Lira» has been done. The designs have been done with regard to the pulsating component of a wind load in accordance to the standards of the Building Codes and Regulations 2.01.07-84 and State Building Codes B.1.2-2:2006. The shaft pivotal design model has been examined in view of deformed and nondeformed settlement scheme. The additional efforts due to the horizontal shaft displacement under the action of wind and foundation heeling have been determined by the method of successive approximations in accordance to the standard of the Temporary Building Codes 286-72, as well as by the stepping and iterative method of the solution of nonlinear problems made by the software engineering «Lira». The analysis of the obtained findings has testified that analyses made by the Temporary Building Codes 286-72 and the Finite Elementary Analyses methods with similar analytical models have convergence within 2 %. The registration of the horizontal displacements of a longitudinal axis of a shaft gives rise of bending moments in shaft ring cross-sections to 5 – 12 % in comparison with analysis on the nondeformed settlement scheme.
Keywords: chimney, settlement scheme, wind load, flue deformation, settlement efforts.
Pages: 51-58.
Link for citation: Korsun, V. I.; Vinogradova, T. N.; Efimenko, R. S. Impact assessment of shaft deformation on settlement efforts value in horizontal cross-section of 100 metre high chimney. – Text : electronic. – In: Modern Industrial and Civil Construction. – 2011. – Vol. 7, N 1. – Р. 51-58. – URL: https://donnasa.ru/publish_house/journals/spgs/2011-1/06_korsun_vinogradova_efimenko.pdf (date of access: 16.09.2024). (in Russian)
Vol. 7, N 1 (2011)Journal: Modern Industrial and Civil Construction
Publish house: Donbas National Academy of Civil Engineering and Architecture