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Experimental Investigations on Punching Shear of Flat Slabs Made from Lightweight Aggregate Concrete

Auteur(s):



Médium: article de revue
Langue(s): anglais
Publié dans: Archives of Civil Engineering, , n. 4, v. 64
Page(s): 293-306
DOI: 10.2478/ace-2018-0058
Abstrait:

In the paper the results of experimental investigations concerning flat slabs made from reinforced lightweight concrete with sintered fly ash aggregate CERTYD were presented. In the research program 6 models made in a natural scale were included. The main variable parameter was slab longitudinal reinforcement ratio. The aim of investigation was the experimental verification of efficiency of double-headed studs as punching shear reinforcement. In the existing technical approvals such kind of reinforcement was allowed only in normal concrete slabs. It was demonstrated that double-headed studs can be an effective transverse reinforcement of lightweight aggregate concrete slabs. The use of double-headed studs resulted in increase in the ultimate load from 19% to 44%, depending on the slab reinforcement ratio which ranged from 0.5% to 1.2%. The comparative analysis showed that the Eurocode 2 provisions were conservative in relation to the experimental results, which were on average 42% higher than the theoretical ones however with a very low 7% coefficient of variation.

Structurae ne peut pas vous offrir cette publication en texte intégral pour l'instant. Le texte intégral est accessible chez l'éditeur. DOI: 10.2478/ace-2018-0058.
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  • Reference-ID
    10476703
  • Publié(e) le:
    25.11.2020
  • Modifié(e) le:
    25.11.2020
 
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