Determination of stress-strain state of the wooden church log walls with software package

Chulkova, Anastasia; Lukichev, Sergey; Романович, Марина

doi:10.1051/matecconf/20168602019

Cited by 8 publications

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References 12 publications

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“…It is known that in the area of the attenuated creep under the long-lasting static load, the structure acquires a stress-strain state after a certain time, which remains almost unchanged in the time following. In this regard, the mentioned formulas can be simplified by substituting variable operators for еру influence coefficients reflecting the steady stressstrain state [20][21][22][23][24][25][26].…”

Section: Resultsmentioning

confidence: 99%

The phenomenon for the wood creep in the reinforced glued wooden structures

et al. 2018

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For the composite structures based on wood, that include reinforced wooden structures, allowance for the influence of wood specific features as a building material allows us to evaluate its structural design as accurately as possible and ensure the required reliability and durability. Creep that causes wood deformations evolving in time can be referred to the specific properties of wood to a greater extent affecting the operation of the reinforced wooden structures. Taking into account the state of the issue to determine the effect of the long-acting loads on the stress-strain state of the reinforced glued wooden structures, the article considers the application of the theory of elastic heredity as the most applicable to assess the deformability of wooden structures in time. The conducted experimental and theoretical investigations and the reinforced glued wooden structures observations during the operational process have shown that their stress-strain state changes significantly under the load over time. Glue compositions used to connect reinforcement with wood ensure their reliable joint operation, however, as the result of the wood creep where wood is the basic material, the redistribution of forces between the reinforcement and wood occurs there on and off. At the same time normal stresses in the reinforcement and the glue joint “reinforcement - wood” increase in the calculated cross sections while they decrease in the wood, which is caused by a change (decrease) in the wood elastic modulus. Allowance for the wood creep in the design of the reinforced wooden structures will allow to determine the stress - strain state of the structure in the design more precisely. Therefore, when developing the reinforced wooden structures design standards, this factor must be taken into account.

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Section: Resultsmentioning

confidence: 99%