Experimental fast-assessment of post-fire residual strength of reinforced concrete frame buildings based on non-destructive tests

被引：10

作者：

Alcaino, Pablo ^{[1
,2
]}

Santa-Maria, Hernan ^{[1
]}

Magna-Verdugo, Carolina ^{[3
,4
,5
]}

Lopez, Luis ^{[6
]}

机构：

[1] Pontificia Univ Catolica Chile, Dept Struct & Geotech Engn, Santiago 7820436, Chile

[2] I3Pro SpA, Santiago 7591313, Chile

[3] Univ Adolfo Ibanez, Fac Ingn & Ciencias, Santiago 7941169, Chile

[4] Univ Diego Portales, Fac Ingn & Ciencias, Santiago 8370191, Chile

[5] CONICYT, FONDAP 15110017, Natl Res Ctr Integrated Nat Disaster Management C, Santiago, Chile

[6] Pontificia Univ Catolica Valparaiso, Sch Construct Engn, Valparaiso 2362804, Chile

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2020年 / 234卷

关键词：

Post-fire residual strength; Non-destructive tests; Reinforced concrete building; Structural assessment; TEMPERATURES;

D O I：

10.1016/j.conbuildmat.2019.117371

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Assessment of the residual strength of reinforced concrete buildings subjected to fire is a problem that requires fast and sufficiently reliable resolution, necessary for the action of firefighters, forensic fire investigation, and structural assessment of post-fire condition of the building to take place. In all cases safety and integrity of firefighters and researchers can be at risk, and it is necessary to have rapidly and sufficiently reliable information in order to choose whether to enter freely, to enter with caution, or simply do not enter to the burned structure. This required prompt assessment gives no time or background to develop mathematical models of the structure and damage propagation. This work presents an experimental methodology for a fast assessment of post-fire residual strength of reinforced concrete frame buildings based on the high correlation between the loss of strength and non-destructive test results of frame concrete elements subjected to fire action. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页数：10

共 30 条

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[28] In-situ strength assessment of concrete - The European Concrete Frame Building Project (Reprinted from Non-Destructive Testing Civil Engineering, April, pg 583-592, 2000)
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[29] Analysis of the single and combined non-destructive test approaches for on-site concrete strength assessment: General statements based on a real case-study
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[30] Three-dimensional computer-aided finite element method retrofitting modeling and non-destructive testing techniques for the assessment of actual existing high-rise fire-damaged reinforced concrete building
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