International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 01 | Jan 2024
p-ISSN: 2395-0072
www.irjet.net
A Review on Behavior of Connected Tall Buildings with Lateral Load Resisting Systems and Dampers Under Seismic Load Vishvesh Jayswal1, Aakash Suthar2, 1M. Tech Student, L.J. University, Ahmedabad
2Aakash Suthar, Head of Department, Structural Engineering Department, L.J. University, Ahmedabad, India.
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Abstract: - Tall constructions are becoming increasingly
CTBUH standards, tall structures 300 meters (984 feet) or higher are referred to as "supertalls," while those 600 meters (1,968 feet) or more are referred to as "megatalls."
popular as a result of land acquisition issues. A linked tall building is a skyscraper or Highrise structure that is physically connected to one or more nearby buildings via bridges or other structural features. It improves structural performance under lateral stresses while simultaneously providing users with horizontal connection. To manage the lateral displacement of a tall building, various lateral load resisting systems and vibration control systems must be used. In this thesis, several construction models with Shear Wall systems, bracing systems, and Linear Viscous Dampers are compared. Models of 25-story linked tall structures with various locations of sky bridges and dampers are investigated. The buildings are examined using linear time history analysis, response spectrum analysis, and wind analysis, and the best approach for improved building performance is determined. It has been discovered that buildings coupled with Sky Bridge and dampers are more successful in lowering different reactions such as story shear, displacement, acceleration, and story drift. . Key Words: Connected Tall Building, Shear Wall, Bracing, Damper, Earthquake & wind load.
Fig 1: - Tall, Supertall and Mega tall Building [2] 1.1. CONNECTED SKYSCRAPER: - Connected tall structures improve a cityscape's architectural character and visual appeal in addition to their utilitarian advantages. They offer a distinctive skyline that is visually stunning as well as practical. The American Copper buildings in New York City, the Marina Bay Sands and Sky Habitat in Singapore, and the Petronas Towers in Kuala Lumpur, Malaysia, are a few wellknown examples of linked tall structures. A skybridge may affect the structural characteristics of the linked structures in addition to its intended use. Nearby tall structures connected by a skybridge will exert control pressures on one another via the skybridge in the case of an earthquake or wind disturbance. A skybridge may affect the structural characteristics of the connected structures in addition to its intended use. Nearby tall structures connected by a skybridge will exert control pressures on one another via the skybridge in the case of an earthquake or wind disturbance.
1. INTRODUCTION: Although no precise height is necessary for a building to be categorized as "tall," IS 16700: 2017 defines a "tall building" as one that is greater than 50 meters in height but less than or equal to 250 meters. A extremely tall skyscraper is one that stands higher than 250 meters. These constructions, known as skyscrapers, are generally found in densely populated urban areas with expensive and restricted land. Tall buildings are often designed with a large amount of floor space contained within a small footprint. Various uses, such as offices, apartments, hotels, or retail establishments, can be achieved by their construction. Usually, steel or concrete are used to make them. Sophisticated engineering and design go into the construction of tall structures to guarantee that they are stable, safe, and able to withstand wind and gravity. Notable skyscrapers across the world include the Empire State Building in New York City, Taipei 101 in Taiwan, the Burj Khalifa in Dubai, and the Shanghai Tower in China. The COUNCIL ON TALL structures AND URBAN HABITAT (CTBUH) established international guidelines for recognizing and quantifying tall structures. As seen in Fig 1. According to
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