Experimental analysis on refractory properties of tall buildings / Ya Wang in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 29, N° 2 (04/2019)  

[article]  inREVUE DES COMPOSITES ET DES MATERIAUX AVANCES > Vol. 29, N° 2 (04/2019) . - p. 89-93 Titre : Experimental analysis on refractory properties of tall buildings Type de document : texte imprimé Auteurs : Ya Wang, Auteur Année de publication : 2019 Article en page(s) : p. 89-93 Note générale : Bibliogr. Langues : Français (fre) Catégories : Analyse de dommages (matériaux) Caractérisation Constructions Essais de résilience Essais dynamiques Immeubles de grande hauteur Laine minérale Matériaux -- Propriétés mécaniques Matériaux -- Propriétés thermiques Matériaux cimentaires Matériaux réfractaires Simulation par ordinateur Index. décimale : 690 Bâtiments : classer les ouvrages d'ensemble sur la conception et la construction des bâtiments à 721 Résumé : High-strength concrete is commonly used in tall buildings. Due to the poor high-temperature resistance of concrete, the fire safety of tall buildings has always been a huge concern. The application of tall building refractories might slow down structural damage, reduce economic loss and protect personal safety. In this paper, the rock wool fibre was taken as an example of tall building refractories. On this basis, the author probed into the mechanical properties and damage evolution of the tall building refractory, and set up a meso-damage mechanics model for the material. The research results show that the rock wool fibre refractory (RWFR) witnessed a reduction in elastic modulus alter being damaged under the growing stress ; when the temperature was below 600 °C, the RWFR enjoyed good properties with only a slight decline in strength, which could satisfy the requirement on the bearing capacity ; the results simulated by the constitutive model agree well with the test results. The research lays solid experimental and theoretical bases for the promotion of RWFR in tall buildings. Note de contenu : - MECHANICAL DAMAGE SIMULATION OF BUILDING REFRACTORIES : - CHARACTERIZATION METHOD OF MESODAMAGE TEST FOR TALL BUILDING REFRACTORY : Mechanical properties test - High temperature test - Analysis of meso-damage test - DAMAGE CONSTITUTIVE MODEL OF BUILDING REFRACTORY MATERIALS DOI : https://doi.org/10.18280/rcma.290203 En ligne : https://www.iieta.org/download/file/fid/12187 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34799 [article]

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