As per the previous records of earthquakes, there is an increase in the demand of earthquake resistance structures. So it is necessary to design and analyse the structure by considering seismic effect. To resist the seismic forces different structural systems are commonly used in multi-storey buildings.
The present paper gives an overview of different research work to be done regarding the study of RC frame multi-story structure with lateral load resisting system such as Frame, Frame Tube, Braced Tube, Diagrid, Tube-in-tube, and Shear Wall-frame, Outrigger Structures. The behaviour of RC frame with different structural systems has been studied and conclusions are made.
Introduction
As urban expansion continues due to population growth, high-rise buildings are essential to efficiently utilize land. However, ensuring their stability and safety under seismic and lateral loads is a critical engineering challenge. To address this, various lateral force-resisting systems—such as shear walls, diagrids, outriggers, braced frames, and tubular systems—are used in the structural design of tall buildings.
Research Focus
This review paper evaluates the effectiveness of different structural systems in improving earthquake resistance. Through simulation-based analysis using tools like ETABS and STAAD.pro, multiple studies have compared parameters such as displacement, drift, base shear, stiffness, and time period for buildings of varying heights.
Key Findings from Literature Review
Diagrid systems consistently showed superior seismic performance with minimal displacement, high stiffness, and aesthetic advantages.
Shear walls proved highly effective in reducing lateral displacement and enhancing base shear, especially in medium-rise buildings and when placed at optimal positions (e.g., building corners or core).
Outrigger systems, particularly those with belt trusses or double outriggers, significantly improve lateral stability and reduce displacement and drift.
Flat slab systems are architecturally beneficial but typically less seismically robust than conventional slabs unless supplemented with shear walls.
Hybrid systems (e.g., diagrid with shear wall) and advanced systems (e.g., tube-in-tube, bundled tubes) demonstrated improved performance over single structural systems.
Angle optimization in diagrids (e.g., 45° or variable-angle designs) can influence both cost efficiency and seismic behavior.
Identified Research Gaps
Seismic Zone Variation: Most studies focus on a single seismic zone; comparative studies across multiple zones are limited.
Hybrid System Integration: There's minimal research on the combined effect of using multiple lateral resisting systems in a single building.
Structural Optimization: Few studies explore optimal sizing and placement of components like shear walls or diagrid modules.
Soil Profile Consideration: Analyses rarely account for different soil conditions, which significantly affect seismic behavior.
Life Cycle Cost: Economic evaluations including maintenance costs and lifecycle performance are seldom discussed.
Experimental Validation: There is a lack of real-world experimental data to validate software-based simulations.
Conclusion
No single structural system is universally optimal. The choice depends on building height, seismic zone, architectural constraints, and performance objectives.
For high-rise buildings in high seismic zones, diagrids, bundled tubes, and outrigger-belt truss systems emerge as the most effective. For mid-rise structures, shear wall and hybrid configurations offer the best balance of performance, cost, and construction practicality.
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