The shake-table study of the effect of longitudinal reinforcement ratio on the behavior of concrete cantilever columns
| Autor: | Nikola Grgić, Marija Smilović, Goran Baloević, Jure Radnić |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Cantilever business.industry Mechanical Engineering 0211 other engineering and technologies Stiffness 020101 civil engineering 02 engineering and technology Shake Structural engineering Condensed Matter Physics 0201 civil engineering Acceleration Column (typography) Mechanics of Materials 021105 building & construction medicine Earthquake shaking table General Materials Science Bearing capacity medicine.symptom Reinforcement business |
| Zdroj: | Materialwissenschaft und Werkstofftechnik. 49:606-618 |
| ISSN: | 0933-5137 |
| DOI: | 10.1002/mawe.201700246 |
| Popis: | The results of the shake‐table study on the effect of longitudinal reinforcement ratio on the behavior of concrete columns are shown. The small‐scale (1 : 3) model of cantilever columns with mass at their top was exposed to horizontal acceleration of an artificial accelerogram. Acceleration amplitudes were successively increased until the collapse of the columns. Characteristic displacements and accelerations, as well as strains in the concrete and reinforcement were measured during the shake‐ table tests. It was concluded that the ultimate bearing capacity and deformability of a column significantly depend on the amount of its longitudinal reinforcement. By increasing the amount of longitudinal reinforcement, ultimate bearing capacity of the column is also increased, but not proportionally. The reason is greater stiffness of the column with higher amount of longitudinal reinforcement than of the column with low amount of longitudinal reinforcement, which generates greater seismic forces in it for the same excitation. |
| Databáze: | OpenAIRE |
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