کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
257809 503601 2014 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fire resistance of 19th century fireproof flooring systems: A sensitivity analysis
ترجمه فارسی عنوان
مقاومت آتش مقاوم در برابر کفپوش های نسوز نسل هجدهم: تحلیل حساسیت
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی


• Evaluation of fire resistance of 19th century fireproof systems.
• Comprehensive data of high temperature thermal and mechanical properties.
• Sensitivity of fire performance to material property uncertainties.
• High temperature material property models for 19th century fireproof systems.

Typical fireproof flooring systems of the 19th century comprise of metal beams embedded within insulation materials that span between them, sometimes in the form of arches. The limited or non-existent fire resistance requirement of that era demands a thorough understanding of their structural fire response when dealing with their conservation. This requires suitable material property models. Historical records from different sources contain large variations in the thermal (insulation and metals) and mechanical (for metals) properties of the materials. In this research, the variations were placed within lower and upper boundary curves. A sensitivity study of the thermal behaviour of typical flooring systems was conducted. The results of this study were used to indicate the level of uncertainty in the thermal properties of the metals (cast iron, wrought iron and mild steel) and the “insulation” materials (“early concrete” and masonry) that may be tolerated without introducing large inaccuracy (>10%) in the structural temperature results. To assess the applicability of the proposed boundary curves for the mechanical properties of the metals, the second series of sensitivity analyses of structural performance was performed, using the temperature profiles from the thermal sensitivity study.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 55, 31 March 2014, Pages 69–81
نویسندگان
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