دانلود رایگان مقاله ارزایابی سریع آزمایش قدرت باقیمانده پس از آتش سوزی ساختمان هایی با قاب بتن مسلح – سال 2020
مشخصات مقاله:
عنوان فارسی مقاله:
ارزایابی سریع آزمایش قدرت باقیمانده پس از آتش سوزی ساختمان هایی با قاب بتن مسلح بر اساس آزمایش های غیر مخرب
عنوان انگلیسی مقاله:
Experimental fast-assessment of post-fire residual strength of reinforced concrete frame buildings based on non-destructive tests
کلمات کلیدی مقاله:
مقاومت پسماند پس از آتش سوزی، آزمایشات غیر مخرب، ساختمان بتن آرمه، ارزیابی ساختاری
مناسب برای رشته های دانشگاهی زیر:
عمران
مناسب برای گرایش های دانشگاهی زیر:
سازه
وضعیت مقاله انگلیسی و ترجمه:
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فهرست مطالب:
Abstract
Keywords
1. Introduction
2. Materials and methods
3. Results and discussion
4. Conclusions
Declaration of Competing Interest
Acknowledgments
References
قسمتی از مقاله انگلیسی:
1. Introduction
A reliable and fast estimation of the post-fire residual strength of reinforced concrete buildings is required in order to determine the damage state of the structure before firefighters and paramedics can go inside, as well as, a forensic fire investigation or an accurate structural assessment of post-fire condition can be address. In all cases safety and integrity of these professionals can be at risk [1], since there is no time to extract specimens of materials and perform laboratory tests to diagnose the state of the structure no accurately nor in an approximate manner.
Additionally, an economic evaluation of the building damage is critical for the decision of repairing or demolishing the public or private infrastructure affected. Considering the high costs of replacing the burned nonstructural elements, equipment and the great expenses of sophisticated studies to determine the level of decrement of the structure strength, to have a simple and fast methodology based on prompt and low-cost testing procedure is convenient: in cases where the repair of the affected structure is not feasible it is possible to avoid unnecessary expenses in evaluation studies. Moreover, in cases where the repair is achievable, it allows not to dismiss the reparation of the structure due to uncertainty of performing more accurate, expensive, and sophisticated studies, since there will be preliminary information available on the level of damage caused by fire on the observed structure. As result of the extensive damage produced by fire in Valparaiso during April 2014, the Chilean Government will spend close to USD102,000,000 within 2014 and 2021 granting housing solution to the 3110 affected families, of which only 20 cases considered the repair of the burned building. Additionally, other USD408,000,000 will be spent on replacing burned public infrastructure by a new one [2]. In this context, it is of great important to have a simple methodology for structural assessment or evaluation of post-fire strength of buildings. Previous research have reported considerable information about forensic assessment of study cases regarding destructive and non-destructive material testing [3–8], and advanced mathematical-computational models, which results have not been completely generalized [9–12] and only some of them consider their applicability on real situations [13]. The objective of this paper is to present an experimental methodology for the fast-cheap initial assessment of post-fire residual strength of reinforced concrete frame buildings based on non-destructive testing.
