The modulus of elasticity in the theory of degradation

Varlamov, A A; Rimshin, Vladimir; Tverskoi, S Y

doi:10.1088/1757-899x/463/2/022029

Cited by 25 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The essence of the approach is based on the principle of limiting the collapse of the structure as a whole by dividing it into separate independent or weakly interconnected independent substructures, each of which has its own structural system to ensure strength and stability [15][16][17][18][19][20].…”

Section: Resultsmentioning

confidence: 99%

Construction building systems protection under emergency exposure

et al. 2019

View full text Add to dashboard Cite

The structural reliability of the building ensures the building safety as a whole and the safety of the population, therefore the issue of ensuring reliability arises primarily in the design process. Buildings must be protected from destruction during all types of force, as well as in the case of load-bearing structures destruction as a result of emergency. Emergency impact on an object is an unregulated impact that is created as a result of an object getting into a special situation and can lead to its accident. The causes of structures progressive collapse are considered in this article. The main methods and methods of protecting buildings from progressive destruction are given. The calculation analysis of the monolithic reinforced concrete building frame for progressive collapse according to the method of possible damage is performed. There are many calculated and constructive proposals for solving the problems of counteracting the progressive destruction that can be divided into three categories: secondary protection measures, indirect design and direct design. In this article the resulting reinforcement of structural elements is determined taking into account the structural requirements for the continuity of longitudinal reinforcement, the minimum percentage of reinforcement. They are determined in the necessary places of additional reinforcement depending on the accepted permanent (background) reinforcement of the floors.

show abstract

Section: Resultsmentioning

confidence: 99%

Construction building systems protection under emergency exposure

et al. 2019

View full text Add to dashboard Cite

show abstract

“…However, the influence of the external environment is also expressed in a decrease in strength, or a decrease in resistance to deformation, under the influence of adsorption, i.e. absorption of molecules from the environment by solid surfaces that change upon deformation [8].…”

Section: Methodsmentioning

confidence: 99%

“…The residual resource of power resistance to transverse bending at normal cross section strength in accordance with [8][9][10][11][12][13][14][15] can be calculated:…”

Section: Methodsmentioning

confidence: 99%

Residual resource of force resistance to deformation

2019

View full text Add to dashboard Cite

The problem of the durability of reinforced concrete structures of urban engineering structures is currently one of the urgent problems in modern construction due to the continuously growing volume of expensive repair and restoration work, facilities reconstruction, a tendency to a general decrease in quality requirements, and the scale of reinforced concrete structures application in difficult climatic conditions. The theoretical foundations of calculating the residual life of the force resistance to transverse bending with the strength of normal sections in the article, algorithms for calculating the residual life of the force resistance and reinforcement of corrosion-damaged reinforced concrete structures are defined. A complex calculation method is considered in this article that allows to quantitatively assessing the state and resources of crack resistance of reinforced concrete structures damaged by corrosion, to calculate the necessary levels of compression and loss of tension, as well as the exposure to preserve crack resistance in time at specific loading levels and intensities of corrosion effects. The developed complex calculation method can be presented as part of the solution to the problem of preventing and eliminating emergency situations. The theoretical basis for calculating the residual resource of strength resistance to transverse bending by the strength of inclined sections are discussed in the article, the calculation algorithms are studied, and examples are given.

show abstract

“…The damage effect to the support nodes of beams and columns on the power resistance. The effect of node damage (changes in boundary conditions) is illustrated on the main elements of building frames -beams and columns [17][18][19][20][21][22][23][24][25].…”

Section: Wherementioning

confidence: 99%

“…The beam B-1 bending moments in pinching equal: (19) mid-span (20) and the angle of the reference section rotation is zero. The beam B-2 bending moments are described by the equation 21which leads to the calculation of the reference moments (22) and mid-span moments (23) wherein the angle of the reference section free rotation (24) It follows that the beam B-1 without destruction can perceive as a uniform load (25) and beam B-2, respectively (26) that is half as much. Thus, if the B-1 beam will lose the ability to perceive the supporting moments due to damage to the supporting sections, and the beam itself will receive an articulated design scheme, then the resource of its bearing capacity will be reduced by half.…”

Section: Wherementioning

confidence: 99%

Reserves and exposure assessment of reinforced concrete structures safety while reducing its power resistance

2019

View full text Add to dashboard Cite

Structural safety of buildings is such an engineering state of the structures operability, foundations, the features of their joint power resistance to expected loads and impacts, taking into account their possible combinations in direction, intensity and mode, which ensures the established functional use with established reliability. The structural safety of buildings depends on design, on compositional and structural solutions, technological measures during construction and operation, which must be provided at all stages of the facility’s existence (construction, operation, repair, reconstruction, dismantling and dismantling). It is necessary to take into account the structural safety parameters of reinforced concrete structures that have received corrosion damage during solving the problems of construction and reconstruction of buildings and structures. Suggestions to quantify the reserves and exposure of structural safety and, accordingly, the reduction in power resistance of corrosion-damaged reinforced concrete structures are presented in this article.

show abstract

The modulus of elasticity in the theory of degradation

Cited by 25 publications

References 0 publications

Construction building systems protection under emergency exposure

Construction building systems protection under emergency exposure

Residual resource of force resistance to deformation

Reserves and exposure assessment of reinforced concrete structures safety while reducing its power resistance

Contact Info

Product

Resources

About