Seismic assessment of existing RC shear walls non-compliant with current code provisions

Autor:	Konstantinos Christidis, Emmanouil Vougioukas, Konstantinos G. Trezos
Rok vydání:	2013
Předmět:	Engineering business.industry Diagonal Building and Construction Structural engineering Current (stream) Seismic assessment Code (cryptography) Axial load Shear wall General Materials Science Geotechnical engineering Reinforcement business Ductility Civil and Structural Engineering
Zdroj:	Magazine of Concrete Research. 65:1059-1072
ISSN:	1751-763X 0024-9831
DOI:	10.1680/macr.13.00051
Popis:	This work forms part of a research programme to assess and strengthen existing reinforced concrete (RC) walls that were designed using older seismic codes. The main object of the present paper is to examine the behaviour of concrete shear walls that do not comply with modern seismic codes (Eurocode 2 (EC2) and Eurocode 8 (EC8)) and compare their experimental performance with the provisions for assessment of RC members included in EC8 Part 3. For this purpose, a series of six shear walls (height h = 1·40 m, length l = 0·74 m, thickness b = 0·10 m) was designed and tested under static cyclic loading. The wall specimens were characterised by various types of reinforcement arrangement, focusing on different amounts of shear reinforcement. The issues investigated are the failure modes, ductility level, the absence of confined boundary elements, the low amount of shear reinforcement, the influence of diagonal reinforcement and the influence of axial load. The experimental results are compared with the provisions included in EC8 Part 3, which predict the shear strength, the chord rotation ductility and the effective stiffness of RC shear walls.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::57341e397c03a4bcdff7c250b69c7b53 https://doi.org/10.1680/macr.13.00051 Zobrazit plný text záznamu