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Assessment of the reliability of the reinforced concrete layer in structures

Abstract

An urgency to use probability-based methods and probabilistic reliability indices in long-term quality assessments and predictions of reinforced concrete products and structures is under consideration. Carbonation nature and depth of protective concrete covers of reinforcement bars and stirrups are analysed. Effect of water-cement ratio on the carbonation rate of protective concrete covers is discussed. Analyzes of reliability of structures reinforcement with composite as spiral (transverse) usage and influence. Presented applied equations and the calculation example demonstrate a simplicity and necessities of probability-based methods.


Article in Lithuanian.


Kompozitine armatūra armuotų konstrukcijų apsauginio betono sluoksnio patikimumo vertinimas


Santrauka


Svarstoma galimybė taikyti tikimybe pagrįstus metodus bei tikimybinius patikimumo rodiklius gelžbetoninių gaminių ir konstrukcijų ilgaamžiškumui bei patikimumui vertinti. Tikimybiniais metodais analizuojamas gelžbetoninių konstrukcijų apsauginio betoninio sluoksnio patikimumas. Analizuojamas vandens ir cemento santykio betono mišinyje bei kitų veiksnių poveikis apsauginių betono dangų karbonizacijos greičiui. Aptariamas kompozitinės kaip skersinės armatūros naudojimas konstrukcijoms armuoti bei jos įtaka konstrukcijų patikimumui ir ilgaamžiškumui. Pateiktas taikomojo skaičiavimo pavyzdys rodo tikimybinių metodų paprastumą ir būtinybę.


Reikšminiai žodžiai: karbonizacija, betoninis apsauginis sluoksnis, patikimumas, kompozitinė armatūra.

Keyword : carbonization, concrete protective layer, reliability, composite reinforcement

How to Cite
Patapavičius, A. (2020). Assessment of the reliability of the reinforced concrete layer in structures. Mokslas – Lietuvos Ateitis / Science – Future of Lithuania, 12. https://doi.org/10.3846/mla.2020.11395
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Jul 7, 2020
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