Experimental tests of slender reinforced concrete columns under combined axial load and lateral force
The use of high strength concrete (HSC) in columns has become more frequent since a substantial reduction of the cross-section is obtained, meaning that slenderness increases for the same axial load and length, producing higher second order effects. However, the experimental tests in the literature...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2011 |
| País: | España |
| Institución: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/49003 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/49003 |
| Access Level: | acceso abierto |
| Palabra clave: | Columns Experimental tests Monotonic Reinforced concrete Slenderness Axial load level Eurocode2 Experimental test High strength concretes Lateral force Numerical models Reinforced concrete column Second order effect Shear span ratio Simplified method Slender reinforced concrete columns Strength of concrete Structural elements Substantial reduction Technological development Test parameters Transversal reinforcement Columns (structural) Concrete buildings Concrete construction Numerical methods Shear strength Testing Axial loads Building code Column Deformation mechanism Experimental study Loading Model validation Numerical model Shear strain Shear test Standard (reference) MECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURAS INGENIERIA DE LA CONSTRUCCION |
| Sumario: | The use of high strength concrete (HSC) in columns has become more frequent since a substantial reduction of the cross-section is obtained, meaning that slenderness increases for the same axial load and length, producing higher second order effects. However, the experimental tests in the literature of reinforced concrete columns subjected to axial load and lateral force focus on shear span ratios, according to Eurocode 2 (2004), clause 5.6.3., (M/(V·h)) lower than 6.5. This gap in the literature limits technological development for the construction of these structural elements. This paper presents 44 experimental tests on reinforced concrete columns subjected to constant axial load and monotonic lateral force. The aim of this is to gain greater knowledge of the types of elements which will also be of use in calibrating the numerical models and validating the simplified methods. The test parameters are strength of concrete (normal- and high-strength concrete), shear span ratio, axial load level and longitudinal and transversal reinforcement ratios. The strength and deformation of the columns were studied, and an analysis of the simplified methods from Eurocode 2 (2004) and ACI-318 (2008) concluded that both are very conservative. © 2011 Elsevier Ltd. |
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