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Vol 152
Pages:
121-124
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RUS

Features of the formation of the stress-strain state of the structural elements of the St. Petersburg Metro station Prospekt Prosveshcheniya

Authors:
P. A. Demenkov
About authors
  • Postgraduate student G.V. Plekhanov Saint Petersburg State Mining Institute
Date submitted:
2001-09-28
Date accepted:
2001-10-28
Date published:
2002-08-26

Abstract

The task of full-scale studies was to observe the processes of expansion in the ends of reinforced concrete beams and the formation of the stress-strain state of reinforced concrete and steel columns. The measurements were carried out with the help of string sensors of linear deformation (PLDS-400) and a portable digital periodometer (PCP-1). Long field observations (14 years) of the development of the stress-strain state of the column-carrier complex were carried out at the deep-filled column-type station. As a result of analyzing the obtained data, we concluded that the applied method of uncompressing the transoms with Freycinet jacks does not lead to the transition of their girder double-concrete operation into a single-jointed arch one. The regularities were revealed and the effect of technological processes (development of the upper vault, core and reverse vault) on the formation of the stress-strain state of the column-carrier complex was evaluated. The last measurement made at the end of 2001 showed that the process of stress and strain development over time continues to this day.

Деменков П.А. Особенности формирования напряженно-деформированного состояния конструктивных элементов станции Санкт-Петербургского метрополитена «Проспект Просвещения» // Записки Горного института. 2002. Т. 152 . С. 121-124.
Demenkov P.A. Features of the formation of the stress-strain state of the structural elements of the St. Petersburg Metro station Prospekt Prosveshcheniya // Journal of Mining Institute. 2002. Vol. 152 . p. 121-124.
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