Investigation of short column effect of RC buildings: failure and prevention

Çağatay, İsmail H.; Beklen, Caner; Mosalam, Khalid M.

doi:10.12989/cac.2010.7.6.523

Cited by 20 publications

(5 citation statements)

References 3 publications

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“…Many reinforced concrete buildings were seriously damaged in past earthquakes due to presence of short columns [10,15]. Short columns can be classified into two groups.…”

Section: Short Columnsmentioning

confidence: 99%

The 2011 Earthquake in Simav, Turkey and Seismic Damage to Reinforced Concrete Buildings

et al. 2013

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Reinforced concrete buildings suffered significant damage in the region affected by the 29 May 2011 earthquake in Simav (Kutahya), Turkey. Typical building damage is classified and potential causes of damage are investigated. Reinforced concrete moment resisting frames with hollow brick infill walls are the most common structural system in and around the Simav city center while masonry construction is common in rural areas. Although the Simav earthquake, with a magnitude of 5.7 to 5.9, can be classified as a moderate earthquake, many buildings experienced damage varying from frequent diagonal cracking and brittle failure of infill walls to collapse or severe damage to frames due to short columns, soft stories or other reasons including insufficient or poor detailing of reinforcement. This study investigates and presents the seismicity of the region, characteristics of the measured ground motions, seismic load demands including response spectra, and damage mechanisms, potential causes and classification of observed damage in reinforced concrete buildings

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“…Many reinforced concrete buildings were seriously damaged in past earthquakes due to presence of short columns [10,15]. Short columns can be classified into two groups.…”

Section: Short Columnsmentioning

confidence: 99%

The 2011 Earthquake in Simav, Turkey and Seismic Damage to Reinforced Concrete Buildings

et al. 2013

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“…A parametric study is carried out for a one-storeyed infill frame first and the same is extended to multi-storey buildings damaged due to the short column effect in Turkey. The results show that short columns with infill segments in the surroundings reduce the shear force effectively [6,7]. The analytical investigation was adopted to find the peculiar behaviour of hill buildings under seismic load, and then the dynamic behaviour of such buildings is compared with flat ground buildings in terms of displacement, drift, fundamental natural period, shear, and plastic hinge formation [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Influence of Infill on Reinforced Concrete Frame Resting on Slopes under Lateral Loading

et al. 2023

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When compared to traditional reinforced concrete constructions on level surfaces, buildings situated on hills with slopes require additional consideration, particularly when seismic loading is an important factor. In hilly slopes, the ground-level columns of structures have different heights due to the nature of the slope, which leads to a short column effect. This paper represents an experimental and analytical investigation of the behaviour of reinforced concrete frames and their response in sloped regions of hills, in which global retrofitting techniques were adopted by providing solid infill in the short column effect zone for the columns in the same storey of differentheights. Numerical analysis was conducted on how infill affected the short column effect under lateral cyclic loads. It was discovered that compared to bare reinforced concrete frames, masonry infill greatly increased the lateral load-carrying capacity by up to 50%. In the meantime, the frame’s ability to dissipate energy increased linearly. After infill was added to the frame with the short column effect, the reinforced concrete structure’s different reactions, including ultimate load displacement, crack pattern, energy dissipation, and energy absorption, were examined. With the addition of a solid infill, the reinforced concrete structure’s lateral strength and energy dissipation capacity were increased by 2.45 times. The damage development on the reinforced concrete frame with infill and the short column effect was less impacted by lateral stress than the reinforced concrete frame without infill.

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“…Due to industrialisation and increase in population, the growth of the building has been increased on hilly areas. Buildings in hilly areas have different column heights on the ground floor, with the short columns behaving badly since a long column and a short column with the same cross section travel horizontally by the same amount during an earthquake (Cagatay, Beklen, and Mosalam 2010;Pradeep and Kunal 2017;Satyanarayanan, Anu Varshini, and Pradeep 2019) . Short columns are further stiffer than long columns thus they are wide open to seismic forces and base shear values of the buildings.…”

Section: Introductionmentioning

confidence: 99%

Performance of RCC Frame With Special Confining Reinforcement on Slope

Sivanantham¹,

Selvan²,

K.S.³

2022

JER is an international, peer-reviewed journal that publishes f

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Earthquake is a natural disaster that occurs when the Earth's crust moves suddenly. Every year, hundreds of earthquakes strike various parts of the globe. According to previous research, buildings that are built on sloped terrain are the most susceptible to earthquakes. This is attributable to the different heights of the columns on the ground floor. By changing the height of the column at the base of a 2-D Conventional RCC Frame and a Special Confined RCC Frame, an experimental investigation was carried out in this study. The parameters like load verses deflection, crack width and stiffness degradation was used to draw comparison between the Conventional RCC Frame and Special confined RCC Frame under Reverse Cyclic Loading by using Push and Pull Jack. Hysteresis curve clearly shows that Special Confining reinforcement provided for the column throughout the span because of columns with varying stiffness provides additional strength and performance against lateral force by dissipating energy. The ductility of Short column improved at initial stage, meanwhile the displacement of the Special confined RCC frame with short column also improved due to ductile reinforcement which leads to reduction in failure rate and arrest the sudden failure of the short columns in the frame as that is physically visible from the crack pattern.

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Investigation of short column effect of RC buildings: failure and prevention

Cited by 20 publications

References 3 publications

The 2011 Earthquake in Simav, Turkey and Seismic Damage to Reinforced Concrete Buildings

The 2011 Earthquake in Simav, Turkey and Seismic Damage to Reinforced Concrete Buildings

Influence of Infill on Reinforced Concrete Frame Resting on Slopes under Lateral Loading

Performance of RCC Frame With Special Confining Reinforcement on Slope

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