Jul 2026· International Journal for Research in Applied Science and Engineering Technology· 0 citations
Abstract
Earthquakes produce significant lateral forces on structures, which may lead to excessive displacement, structural
instability, and collapse if proper seismic resistant measures are not adopted. The present study focuses on the comparative
seismic performance evaluation of a G+11 reinforced cement concrete (RCC) building incorporated with different vibration
control system using ETABS 20. The building was analyzed for Seismic Zone V using the Response Spectrum Analysis (RSA)
method in accordance with the provisions of IS 1893 (Part 1): 2016. Six structural models were considered in the study, namely
bare frame structure, fluid viscous damper model, friction damper model, X-bracing model, shear wall model, and lead rubber
bearing (LRB) base isolated model. The seismic performance of each model was evaluated based on parameters such as
maximum storey displacement, storey drift and storey shear. The results obtained from the analysis indicate that the Shear Wall
model provides the most effective reduction in displacement and drift due to its Enhanced stiffness, although the shear wall and
bracing systems significantly improve structural stiffness but attract higher seismic forces hence greater base shear than bare
frame model. The fluid viscous damper and friction damper showed overall good seismic performance by reducing the overall
displacement, drift and storey shear without attracting higher seismic forces. The base isolated model increases the displacement
due to increased flexibility in the structure but reduces drift and force transmission into the structure. The study concludes that
vibration control systems considerably enhance the seismic performance of RCC structures and assist in improving structural
safety in earthquake-prone regions.
The present study evaluates the seismic performance of a G+15 reinforced concrete (RC) framed building using
ETABS software in accordance with IS 1893 (Part 1): 2016. The building is modelled as a plan-regular structure located
in Seismic Zone V with medium soil conditions. Modal Analysis, Equivalent Static Analysis, and Response Spectrum
Analysis are carried out to assess the dynamic behaviour of the structure under earthquake loading. Important structural
parameters such as natural time period, modal participation ratio, base shear, storey displacement, and storey drift are
obtained and analysed. The results indicate that seismic response varies significantly along the height of the building, with
maximum displacement and drift occurring at the upper storeys while remaining within the codal limits. The study
demonstrates that ETABS is an effective tool for evaluating the seismic behaviour of multi-storey RC buildings and
provides valuable information for designing safe and earthquake-resistant structures.
Moksha C K, Madhukaran· International Journal for Re...· 0 citations
The rising frequency of seismic occurrences and the expansion of multi-story structure development have made
earthquake-resistant design a crucial component of structural engineeringIf buildings are not built with sufficient lateral loadresisting systems, lateral forces produced during earthquakes can result in excessive displacement, structural instability, and
major damage. Because they offer more stiffness, strength, and stability, reinforced concrete shear walls are widely
acknowledged as one of the best structural elements for enhancing a building's seismic performance.
The analysis and design of shear walls for earthquake-resistant structures using ETABS is the main emphasis of this work. A
multi-story structure made of reinforced concrete is modeled and examined under seismic and gravity loading scenarios.
Material qualities, geometric configurations, loading conditions, and design parameters are established in compliance with the
applicable Indian Standards when the structural model is created using ETABS. By changing the shear walls' placement within
the structure, various structural configurations are taken into consideration in order to assess the efficacy of shear walls.
Structural response characteristics including storey displacement, storey drift, base shear, storey stiffness, natural time period,
and mode shapes are used to evaluate each model's earthquake behavior.
The analytical findings show that adding shear walls to reinforced concrete structures greatly enhances their seismic
performance by lowering lateral displacement and interstory drift while boosting overall stability and structural stiffness.
Compared to traditional moment-resisting frame systems, buildings with appropriately positioned shear walls show better
resistance to forces caused by earthquakes. The study also emphasizes how crucial shear wall placement and configuration are
to obtaining effective structural performance and reducing seismic damage.
For structural engineers and designers involved in the planning and construction of earthquake-resistant structures, the
project's results offer useful information. The results validate the efficient application of shear walls as a cost-effective and
dependable lateral load-resisting technology for reinforced concrete buildings situated in seismically active areas. The study also
shows how effective ETABS is as a structural analysis and design tool for assessing and improving multi-story structures'
seismic behavior.
Gontireddi Surya Ravi Kumar· International Journal for Re...· 0 citations
This study investigates the seismic performance of multi-storey reinforced concrete (RC) buildings integrated with RC shear walls, using ETABS software for structural modelling and dynamic analysis. Building models with G+3, G+13, and G+23 storeys were analysed in accordance with IS 1893:2016 provisions, representing seismic conditions of Zone V. The research examines the effect of shear wall placement on key seismic response parameters, including storey drift, base shear, fundamental time period, and hinge formation. The analytical results demonstrate that incorporating shear walls markedly increases lateral stiffness, decreases displacement, and enhances overall structural stability. The location of shear walls, whether at the corners, core, or along the periphery, significantly influences torsional response and helps achieve Immediate Occupancy (IO) performance levels. The findings confirm that shear walls provide substantial seismic resistance for low, mid, and high-rise structures compared to bare frame systems. This work offers a practical framework for designing earthquake-resilient RC buildings and guides retrofitting measures for structures in high-seismic regions.
E. Ganesh, K. Archana, Nayakanti Rajeev et al.· International Journal of Lat...· 0 citations
Designing high-rise reinforced concrete (RC) structures with adequate lateral stability is essential, especially in areas prone to earthquakes and strong winds. A G+9 RC framed structure was examined in this research with and without shear walls, utilizing STAAD as a tool for comparison.The PRO CONNECT Version. Model A is a standard reinforced concrete momentresisting frame, while Model B is an improved version of Model A with three shear wall components positioned in the middle to increase lateral stiffness. For Seismic Zone II circumstances, both models were tested under dead load, live load, wind load, and seismic load according to IS 1893 (Part 1):2016. Displacements at nodes, forms deflected, stress distribution on plates, and bending moment behavior of frame elements were used to assess the structural reaction. Through altering the distribution of seismic and wind forces and minimizing horizontal displacements, the comparison study demonstrated that the addition of shear walls substantially increased the building's lateral stiffness. When compared to the bare frame model, the shear wall system lowered the bending moments in the columns by absorbing most of the lateral load. A lack of change in the gravity load response, including vertical displacement and slab stress behavior, suggests that shear walls mainly affected lateral performance and had no negative effect on gravity load behavior. The research shows that medium-rise RC structures with shear walls have better drift control, lower member demands, and better structural performance overall, and that they resist lateral loads efficiently. Buildings vulnerable to seismic and wind forces should use wall-frame dual systems, according to the results.
A UMA DEVI, Dr. B. SHARATH CHANDRA· International Journal of AI...· 0 citations
: Rapid urbanization has resulted in the construction of increasingly taller reinforced cement concrete (RCC) buildings in regions susceptible to earthquakes. The lateral forces generated during seismic events significantly influence the structural safety, serviceability, and overall performance of these buildings. Bracing systems have emerged as an effective technique for enhancing the lateral stiffness, reducing inter-storey drift, and improving the seismic resistance of multistory structures. This research investigates the seismic behavior of a G+14 RCC building provided with different concentric steel bracing configurations, namely X-bracing, V-bracing (Chevron), Inverted V-bracing, and Diagonal bracing. The analytical model is developed using ETABS software and analyzed according to the provisions of IS 1893 (Part 1):2016 and IS 456:2000. Linear dynamic analysis is carried out to evaluate important response parameters such as storey displacement, storey drift, base shear, natural time period, overturning moment, and column forces. Comparative evaluation of the various bracing arrangements is performed to determine the most effective configuration for improving seismic performance. The study indicates that introducing bracing systems considerably enhances the lateral stiffness of RCC buildings while reducing displacement and drift. Among the investigated configurations, X-bracing demonstrates the highest efficiency in controlling lateral deformation without significantly increasing structural weight.
Mohammed Nauman· International Journal of Sci...· 0 citations
Objectives: To examine the seismic behaviour of an Reinforced Concrete (RC) building for Seismic Zone II while investigating the effectiveness of Lead Rubber Bearing (LRB) isolation system for that structure in Seismic Zone V. Method: The G+8 RC building is designed in ETABS following IS 456:2000 and IS 1893:2016. After verifying its safety under Zone II seismic loads, the building is analysed under the more severe Zone V conditions, where several structural members get fail. An LRB isolator is designed in ABAQUS and incorporated into the ETABS model. The building’s performance is evaluated using parameters such as base reaction, storey displacement, storey drift, time period, beam bending moment, beam shear force and column axial force. Findings: The structure was safe under Zone II loads, whereas several members failed under Zone V seismic loading due to increased seismic demands. Compared to Zone II, increases of 260.2% base reaction, 260.6% storey drift, 252.1% storey displacement, constant time period, 148.3% bending moment, 105.6% shear force, 15.1% and 4.3% axial load in two selected columns were observed. With LRB isolation, reductions of 46.9% base reaction, 13.3% storey drift, 8.68%bending moment, 22.4% shear force, 14.9% and 11.1% axial load were achieved, while storey displacement and time period increased by 66.1% and 97.3%, respectively, compared to the fixed-base Zone V structure. Consequently, the failed members satisfied the design criteria after isolation. Novelty: It is evident from the study that there is an effective way to enhance seismic performance through the use of LRB base isolation system in order to increase seismic capacity without altering member size in low-seismic structure.
Keywords: Seismic Performance, Multistorey Reinforced Concrete Building, Lead Rubber Bearing, Base Isolation, Storey Displacement
Manish Haveri, Nagaraj Tuppad, R. Gowda· Indian Journal of Science an...· 0 citations
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