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Analytical model for restraint strains and self-stressed in expansive concrete filled steel tubes (ecfst) estimation
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Дата издания
2020Издательство
БрГТУУДК
624.012Библиографическое описание
Analytical model for restraint strains and self-stressed in expansive concrete filled steel tubes (ecfst) estimation / V. V. Tur [et al.] // Вестник Брестского государственного технического университета. Серия: Строительство и архитектура. – 2020. – № 1. – P. 93–98 : ill. – Bibliogr.: p. 97 (13 titles).Аннотация
In this paper, a modified strains development model (MSDM) for expansive concrete-filled steel tube (ECFST) was formulated and verified on the experimental
data, obtained from testing specimens on the expansion stage. The modified strain development model for restraint strains and self-stresses values
estimation in concrete with high expansion energy capacity under any type of the symmetrical and unsymmetrical finite stiffness restraint conditions was
proposed. Based on proposed MSDM a new model for expansive concrete-filled steel tubes is developed. The main difference between this model and
other previously developed models consists in taking into account in the basic equations an induced force in restrain that is considered as an external load
applied to the concrete core of the member. For verification of the proposed model-specific experimental studies were performed.
As follows from comparison results restrained expansion strains values calculated following the proposed model shows good compliance with experimental
data. The values predicted by the proposed MSDM for concrete-filled steel and obtained experimental data demonstrated good agreement
that confirms the validity of the former.
URI документа
https://rep.bstu.by/handle/data/6578Документ расположен в коллекции
- 2020 [32]
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