Zobrazeno 1 - 10
of 154
pro vyhledávání: '"František Wald"'
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 30, Pp 104-108 (2021)
Material properties of steel structures are significantly reduced at high temperatures, so a fire protection has strong positive impact on the fire resistance of the structure. Fire resistance of steel elements can be increased using a layer of cemen
Externí odkaz:
https://doaj.org/article/ff8f5768fee74beabf825b724a57c065
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 34, Pp 116–121-116–121 (2022)
Steel structural elements are sensitive to elevated temperatures, while timber elements have good thermal insulation properties. Timber material can fulfill the role of fire protection of steel members. The effect of the protection is demonstrated on
Externí odkaz:
https://doaj.org/article/16410b1f288549c7996b9177c495c7b1
Autor:
Otto Dvořák, František Wald
Publikováno v:
Civil Engineering Journal, Vol 2019, Iss 1, Pp 145-149 (2019)
In fire engineering, the quality of results of crucial test methods is key for validation of advanced numerical models. Therefore, it is important that the correct functioning of the test equipment and test procedures is achieved. This contribution i
Externí odkaz:
https://doaj.org/article/0c9a417ad7a84b14aeca3d70c58651fa
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 15, Iss 0, Pp 120-125 (2018)
This article presents linked computational approach for fire simulation and its effects on structure using adiabatic surface temperature. The simulation solves a weakly-linked problem, consisting of computational fluid dynamics (CFD), heat transport
Externí odkaz:
https://doaj.org/article/69744dd1216b427289278f29b362b83b
Publikováno v:
Civil Engineering Journal, Vol 2018, Iss 2, Pp 227-236 (2018)
Numerous studies were executed in last 20 years to analyse the bending resistance of beam-to-column joints. The component method described in EN1993-1-8:2005 [1] was developed for the beam-to-column steel joints between H and I-profiles and loaded in
Externí odkaz:
https://doaj.org/article/162cff018278468e93e15d15fc4ff73c
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 13, Iss 0, Pp 121-124 (2017)
Fire resistance of buildings is based on fire tests in furnaces with gas burners. However, the tests are very expensive and time consuming. This article presents a coupled simulation of an element loaded by a force and a fire loading. The simulation
Externí odkaz:
https://doaj.org/article/bc48f56cb09548f8b9e107d3c5cffd7d
Publikováno v:
Metals, Vol 11, Iss 7, p 1088 (2021)
This paper presents the behaviour and design procedure of bolted connections which tend to be sensitive to block shear failure. The finite element method is employed to examine the block shear failure. The research-oriented finite element method (RFE
Externí odkaz:
https://doaj.org/article/ba2f493af9b84aedbca5432baeb0ebbd
Publikováno v:
Civil Engineering Journal, Vol 2017, Iss 1, Pp 77-90 (2017)
The paper presents behaviour of gusset plate connections in compression. The finite element method is employed to examine the buckling resistance of the gusset plate connections. The FE model is validated to results of physical tests and verified by
Externí odkaz:
https://doaj.org/article/d950460139644304b0d4da5f3a9eb598
Autor:
Kamila Cabová, František Wald
Publikováno v:
Acta Polytechnica, Vol 56, Iss 6, Pp 432-439 (2016)
The paper describes verification and validation of numerical model of fire and smoke development in a railway tunnel carried out in numerical code Fire Dynamic Simulator. To evaluate a correctness of numerical solution of the model with respect to th
Externí odkaz:
https://doaj.org/article/c9a641bbbb7845b5b5a84e242c2fbc73
Publikováno v:
Materials, Vol 14, Iss 3, p 574 (2021)
Fire exposure of timber leads to charring, surface cracking and timber burnout, shifting the external thermal load deeper into the timber domain. This phenomenon plays its role mainly in situations of longer fire exposure. The majority of current app
Externí odkaz:
https://doaj.org/article/09e58a84a10e444d85008d6c6a1afd79