A study on seismic analysis of high-rise building with and without floating columns and shear wall

Lingeshwaran, N.; KranthiNadimpalli, Surya; KollaSailaja,; Sameeruddin, Shaik; Kumar, Y. Himath; Madavarapu, Sateesh Babu

doi:10.1016/j.matpr.2021.07.120

Cited by 10 publications

(3 citation statements)

References 1 publication

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“…It has been concluded that buildings with shear walls on all four corners perform better than others as they show lower displacement, drift, and base shear. N. Lingeshwaran et al [9] have examined the usage of shear walls in building with oating column. Building without oating column, building with oating column, and building with oating column and shear wall-such three G + 9 storey models were made in ETABS software and analysed using response spectrum and time history method.…”

Section: Literature Reviewmentioning

confidence: 99%

Effective Location of Shear Walls in High-Rise RCC Buildings Subjected to Lateral Loads

Shukla

Nallasivam

2022

Preprint

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Lateral loads such as earthquake and wind loads play a governing role in the design of high-rise buildings. Consequently, providing adequate lateral rigidity against such loads in high-rise buildings is a major concern for structural engineers. A shear wall is one of the vertical elements which are used in buildings to fulfil lateral rigidity requirements. But its location and arrangement should be proper to effectively resist lateral loads, so this study aims to find out the response of high-rise buildings with shear walls subjected to lateral loads.In the present study, various high-rise rectangular building models with and without shear walls have been analysed for seismic and wind loads in finite element based ETABS software. Seismic loads have been calculated according to the equivalent static method given in IS Code 1893 (Part-1): 2016 and wind loads have been calculated according to IS Code 875 (Part-3): 2015. Results of storey displacements and storey drifts have been extracted, considering four load combinations according to the Indian Standard Code.It has been found that shear walls situated at the centre in the form of a core perform effectively against lateral loads. Displacement at the top of such a building is approximately 2.5 times less than the top story displacement of a building without a shear wall. Shear walls located at corners are the least effective.The study focused only on symmetrical building shapes, and lateral loads were calculated using the equivalent static method.The high-rise building includes both framed systems and shear walls. The shear walls are distributed in such a way that the floor plan length of walls is the same in all the buildings, so results are affected by the arrangement and location of walls only.

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Section: Literature Reviewmentioning

confidence: 99%

Effective Location of Shear Walls in High-Rise RCC Buildings Subjected to Lateral Loads

Shukla

Nallasivam

2022

Preprint

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“…The brewing process has been recognized as a technological advancement that has the potential to decrease concentricity and enhance structural stability. This observation indicates that eccentric-type bracing is more suited for buildings subjected to primary seismic pressures, but concentric bracing is more appropriate for structures exposed to wind loads (Alshamrani et al, 2009;Salek Faramarzi & Taghikhany, 2020;Lingeshwaran et al, 2021).…”

Section: Introductionmentioning

confidence: 96%

Concentric Bracing Frame in Earthquake-Resistant High-Rise Buildings

Alhussein,

Nugroho,

Wahiddin

et al. 2024

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Indonesia has regular earthquakes; thus, constructions must be designed to SNI 1726:2019. Building height based on SNI 1726:2012 table 9 and article 7.2.5.4 maximums. The survey says response-based damage models can assess ground vibrations. The earthquake damage was assessed and compared to the moment-resisting frame after the structure was rehabilitated with concentric bracing. 1) This study analyzes lateral forces on each level for moment-resisting and concentric-braced frames. CBF, 2) assessing displacements at each level for moment-resisting and concentric braced frames, and 3) counting narratives. The ETABS Structural Analysis Professional 2020 program measures structural element internal forces. Internal forces include shear, axial, bending, and twisting. Next, calculate level displacement, or vertical distance between levels. The pushover analysis on medium and high-rise structures shows 0.91% CBF lateral shear force. CBF stiffens elastically. CBF supports enhance CBF displacement by 70%, minimize floor structure displacement, and stiffen the steel frame laterally more than MRF. Maximum CBF deviation between floors is 85%; CBF and MRF weight differential is 1.530%. Thus, the CBF exceeds the frame weight. The designed structure is important, but seismic performance in static and dynamic nonlinear circumstances differs.

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“…As the research unfolds, a comprehensive understanding of the complex interplay between architectural design, seismic forces, and structural response is essential for advancing the field of earthquake engineering and ensuring resilient construction practices in India. [22][23][24][25][26][27][28]…”

Section: Introductionmentioning

confidence: 99%

Analysis of multi-storey buildings with and without floating columns by using construction sequence analysis in different seismic zones in India

Seshagiri Rao,

Bommisetty,

Vaibhavi

2024

J. Phys.: Conf. Ser.

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In recent times multi-storied urban constructions require no-column space due to several reasons such as space, population, and aesthetic requirements. Especially by placing floating columns at baselevel provide us column free space for parking and free movement of vehicles. These structures often have floating columns, which can be dangerous in actives seismic zones. This study examines the detrimental impacts of floating columns in multi-storey buildings using construction sequence analysis (CSA) in different seismic zones as prescribed in Indian standard code of practice. The study compares designs of multistorey structures with and without floating columns for various seismic zones and determine storey displacement, storey shear, storey drift, Response spectrum, The findings show that installing floating columns in zones 2 and 3 is allowed, when necessary, as displacement values produced are within allowable limits. However, installing floating columns in zones 4 and 5 causes displacement values to exceed allowable ranges. To develop a safe and economically advantageous floating column construction, the structure should be strengthened with special remedial features like shear wall, bracings, and dampers.

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A study on seismic analysis of high-rise building with and without floating columns and shear wall

Cited by 10 publications

References 1 publication

Effective Location of Shear Walls in High-Rise RCC Buildings Subjected to Lateral Loads

Effective Location of Shear Walls in High-Rise RCC Buildings Subjected to Lateral Loads

Concentric Bracing Frame in Earthquake-Resistant High-Rise Buildings

Analysis of multi-storey buildings with and without floating columns by using construction sequence analysis in different seismic zones in India

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