Fire design of arch-type timber roof

Vatin, Nikolai; Saknīte, Tatjana; Serdjuks, Dmitrijs; Goremikins, Vadims; Pakrastiņš, Leonīds

doi:10.5862/mce.64.3

Cited by 33 publications

(17 citation statements)

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“…With the advent in the mid 80s of the last century computer mathematics systems in engineering practice for the calculation of building structures, it became possible to use not only numerical methods [1][2][3][4][5][6][7][8][9], but also analytical methods. The very first samples in this direction were reduced to obtaining formulas for calculations of deflection and stresses in a concrete design with a parametric representation of the load, dimensions, and elastic properties of the material.…”

Section: Introductionmentioning

confidence: 99%

Analytical calculation of the combined suspension truss

2019

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An algorithm is given for obtaining the formula for the dependence of the deflection of a regular planar truss of an arched type with a suspended lower belt on the number of panels. The cases of uniform loading of the nodes of the upper and lower belts by a vertical load are considered. To generalize a number of solutions obtained in the system of computer mathematics Maple to an arbitrary case, an induction method was applied. For this purpose, for a sequence of coefficients of the particular solutions found, a common term is determined which is a solution of the recurrence equation. The deflection was determined with the help of Mohr's integral, which depends on the forces in the rods. Forces in a statically determinate construction were performed by cutting out nodes from the solution of a system of equations written in a matrix form. The analytical dependence of displacement of the mobile support on the number of panels is found.

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Section: Introductionmentioning

confidence: 99%

Analytical calculation of the combined suspension truss

2019

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“…Development of new timber based structural materials which provide producing of mass structural members enables to delete the limitation on the timber use for the multi-storey buildings. The mass timber structural members are characterized by the increased fire resistance in comparison with the light timber members with the small cross-sections (Green & Karsh, 2012;Green & Taggart, 2017;Nedryshkin, Gravit, & Grabovyy, 2018;Buka-Vaivade, Serdjuks, Goremikins, Pakrastins, & Vatin, 2018;Saknite, Serdjuks, Goremikins, Pakrastins, & Vatin, 2016;Schmid, Klippel, Just, Frangi, & Tiso, 2018). Construction of multi-storey timber buildings represent the most practical, effective and environmentally responsible solution to the global housing shortage which is caused by the increased urbanization and the densification of cities.…”

Section: Introductionmentioning

confidence: 99%

Simplified approach for analyse of shear walls for multistorey timber buildings

Virbule

Serdjuks

Buka-Vaivade

2019

Modern Building Materials, Structures and Techniques (MBMST)

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Construction of multi-storey timber buildings represent solution to the global housing shortage which is caused by the increased urbanization and the densification of cities. Three-storey timber building with the platform framing method of major structural member’s joining of was considered as an object of investigations. The length and width of considered building were equal to 28 and 13 m, correspondingly. Simplified approach of load-bearing shear wall modelling, which is based on the replacement of the shear wall structure by the lattice structure with the equivalent stiffness, is presented. FEM models were developed by the softwares ANSYS 15.0 and Autodesk Robot Structural for verification of developed simplified approach. It was stated, that the difference between the horizontal displacements obtained for single member of shear wall structure by the developed simplified approach and developed FEM models does not exceeds 5%

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“…For example, the fire effect significantly changes the parameters of creep of concrete [7], thermo-stressed state in massive concrete structures in a fire is equivalent to that arising during setting of concrete [8], which causes cracks formations. In this way, the design of fire protection is a mandatory requirement in the design of structures [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Increase of fire resistance of reinforced concrete structures with polypropylene microfiber

Gravit

Golub

2018

MATEC Web Conf.

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The increase in the construction of high-rise, technically complex buildings and structures is a prerequisite for the widespread use of structures of heavy concrete. In this work, a special type of destruction of this type of concrete is considered in the fire action explosive spalling. One method of protection is polypropylene microfiber, the objective of which is to increase the fire resistance of concrete and reinforced concrete structures. The fire resistance tests of the reinforced concrete structure with the use of microfiber and without it have been carried out. It is shown that polypropylene microfiber can completely prevent explosive spelling of concrete. In addition, the introduction of additives in the form of fibrous materials into the concrete mix is the most optimal from the point of view of labor intensity and material costs.

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Fire design of arch-type timber roof

Cited by 33 publications

References 0 publications

Analytical calculation of the combined suspension truss

Analytical calculation of the combined suspension truss

Simplified approach for analyse of shear walls for multistorey timber buildings

Increase of fire resistance of reinforced concrete structures with polypropylene microfiber

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