Methodology for Calculating the Technical State of a Reinforced-Concrete Fragment in a Building Influenced by High Temperature

Olha Bashynska; Yurii Otrosh; Oleksandr Holodnov; Andrey Tomashevskyi; Galyna Venzhego

doi:10.4028/www.scientific.net/MSF.1006.166

Paper Titles

Major Issues of Theory and Practice of Fire Resistance of Reinforced Concrete Structures and Buildings
p.136

Determination of Integrated Safety of High-Risk Structures According to Criteria of Acceptable and Manageable Risks
p.143

Calculation of Lateral Soil Pressure at the Hydraulic Construction and its Sustainability on the Stone Bed
p.149

Scientific Research Basics of Fire Resistance Testing for Reinforced Concrete Structures and Buildings
p.158

Methodology for Calculating the Technical State of a Reinforced-Concrete Fragment in a Building Influenced by High Temperature
p.166

Designing of Structural Construction and Orthotropic Slabs from Steel Reinforced Concrete
p.173

Treatment of Determination Method for Strength Characteristics of Reinforcing Steel by Using Thread Cutting Method after Temperature Influence
p.179

Influence on Environmental Safety of the Drinking Water of Nitrification in Water Reservoir Being a Source of Water Supply and Filter Filling Materials in Water Treatment Facilities
p.187

Using of Production Wastes in Stormwater Drainage Purification
p.194

HomeMaterials Science ForumMaterials Science Forum Vol. 1006Methodology for Calculating the Technical State of...

Methodology for Calculating the Technical State of a Reinforced-Concrete Fragment in a Building Influenced by High Temperature

Abstract:

The purpose of research was to develop a methodology for testing the fire-resistant quality of a building fragment influenced by a real fire to substantiate the main calculation methodology provisions and determine the residual load-carrying ability. While testing, it was supposed to determine the technical state of reinforced-concrete structures after high-temperature exposure and further intensive extinguishment. High-temperature heating and further fire extinguishing with water leads to the surface layers’ destruction and weakening of concrete. Impact on the structures of the open air leads to destruction and delamination of weakened concrete with further exposing of reinforcement and its corrosion. The approach, implemented in LIRA-SAPR software package, makes possible to take into account the influence of changes in the temperature regime of operation on the stress-strain state of the structure. After determining the temperature fields, it is necessary to reduce the rigidity characteristics of materials and perform a calculation of strength. When using this approach in order to determine the total deformations of the structure, it is necessary to take into account the creep deformation.

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Periodical:

Materials Science Forum (Volume 1006)

Pages:

166-172

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.1006.166

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Online since:

August 2020

Authors:

Olha Bashynska, Yurii Otrosh*, Oleksandr Holodnov, Andrey Tomashevskyi, Galyna Venzhego

Keywords:

Fire-Resistant Quality, High-Temperature Exposure, Reinforced-Concrete Fragment of a Building, Technical State

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* - Corresponding Author

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