Comparison of Analytical and Numerical Results for the Charring Rate of the Timber-Concrete Beam
Journal Title: International Journal of Structural Glass and Advanced Materials Research - Year 2018, Vol 2, Issue 1
Abstract
Modelling the thermal response of timber is a primary issue for the assessment of the mechanical resistance of timber structures exposed to fire. Therefore, this paper analyses various advanced calculation methods of determining the charring rate. Authors of this contribution use analytical calculation methods according to two different publications and also a numerical calculation by means of program based on Finite Element Method (FEM). Input values of parameters in these calculations were derived from an experiment on a timber-concrete beam, which was realised by two authors of this paper in the past. In conclusion, the values of one-dimensional charring rate of timber calculated by different methods are compared. It is necessary to pay attention to the fact that the resultant values can significantly differ depending on various input values in the analytical calculations. The charring rate increases until a certain time at the beginning of the charring and then it starts to slightly decrease. However, not all of the calculation methods presented in this paper correspond with that.
Authors and Affiliations
Zuzana Kamenická, Jaroslav Sandanus, Lukáš Blesák, Kamila Cábová and František Wald
Keywords
Related Articles
- EP ID EP40368
- DOI 10.3844/sgamrsp.2018.125.134
- Views 263
- Downloads 0
Studies on Environmental Impact Assessment of Reinforced Concrete in Different Life Cycle Phases
Concrete is one of most used materials in construction and also one of the main responsible for the emission of carbon dioxide, or CO2, in the atmosphere. Thus, in order to study ways to reduce this impact, it is importa...
Preparation of Porous Silicon P-Type and Thermal Diffusivity Measurement Using Photoacoustic Technique
Porous silicon (PSi) layers were formed on a p-type Si wafer. Electrochemical method was used to prepare 36 samples with three values of current density (10, 20 and 30) mA/cm2, each involved ( 20, 40, 60 and 80) min etch...
HYGLASS: Design Proposal for an Integrated Multifunctional Hybrid Glass-Steel Structure
Contemporary cities demand smart communication infrastructures to facilitate the interaction of residents and visitors with the urban environment. Such systems are required to be network-connected, interactive, environme...
Infrared Thermography for the Characterization of Painted Vaults of Historic Masonry Buildings
The infrared thermography is a type of non-destructive investigation which can find interesting application in acquiring information about the structural features of ancient masonry buildings. In this case, in fact, the...
Knowledge Acquisition of Existing Buildings by Means of Diagnostic Surveying. Case Studies
The issue of assessing the structural safety of existing buildings involves several problems when a unique and reliable strategy of modelling and analyzing is looked for. This is mainly related to the peculiarity of each...