International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 06 | Jun 2023
p-ISSN: 2395-0072
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“A PARAMETRIC EVALUATION OF TWIN TOWER STRUCTURE HAVING HORIZONTAL AND VERTICAL CONNECTION VARIATIONS” Thakor Vishalkumar Sureshbhai1, Aakash R. Suthar2 1Student Civil Engineering Department, L.J.I.E.T. Ahmedabad, Gujrat, India 2Assistant Professor Structural Engineering Department, L.J.I.E.T. Ahmedabad, Gujrat, India
---------------------------------------------------------------------***--------------------------------------------------------------------architectural design, which has recently grown more unique Abstract - Modern structures have extremely
and outstanding [5]. Two single towers serve as the main structure of a double tower connected building, which is a complex architectural form connected by links like passageways [3]. The connecting body is offered at a specific height and creates unique structural system for a building. . High-rise connected structures have simple and developed static performance. The location of the link will affect the dynamic properties of tall structures and may change how they react to loads such as earthquakes, wind, and other forces [3]. The type of connection chosen for the corridor affects both the behavior of the structure and the members of the passageway.
integrated and multi-functional architectural designs. A multi-tower is a group of two tall buildings that are linked to each other. Due to the numerous high-rise construction projects that have been completed, structural development in the metropolis has rapidly increased. The fundamental process in designing a high-rise building with the same height and geometry is structural analysis. It is preferable to choose high structures if the horizontal dimension of the construction field is decreasing. At high vertical dimensions, there is always an issue because of the cantilever action, wind loads, and seismic loads. To make the structure resistant to all these kinds of forces while making it more rigid and stable for the wind and seismic loads, the idea of the "MULTI-TOWER WITH LINK" was developed. Structure without connected beams and structure with connected beam. In this work, the analysis of G+28 (85.98m) and G+24 (75 m) high rise and medium rise twin towers connected at various heights and spans is studied. The goal of this study is to ensure that connecting beams in twin tower structures that are subject to lateral loads are used effectively and are positioned perfectly. The model will be examined for static and dynamic conditions in this building, which is in Ahmedabad Zone III. The parameters like Storey Displacement, Drift and Base Shear to be studied in ETABS software. The economy and the maximum durability were determined at connections, which are provided at 0.8 H + 5% distance (where H represents the height of the building). If the structures are parallel and close to each other, the reduction in displacement and drift is typically more significant, ranging from 30% to 40%. On the other hand, if the structure are some distance apart but still parallel to each other, the reduction in displacement and drift is generally lower, around 5% to 10%.
Serviceability requirements such story displacement, story drift, and base shear in static and dynamic analysis are the main criteria that the structures should be satisfy. Among the alternatives for satisfying the serviceability criteria in elevated constructions is to provide Connecting Beams (CB). The idea of connecting beams is kind of similar to that of sky bridges. In this study, the separate towers are to be connected by a link, or connecting beam, at specific floor levels depending on the requirements. It makes it easier for people and things to move about, typically between or with other buildings. Due to the rise in buildings, their attractive aesthetics, and the rising need for additional emergency exits, these structures, particularly those connecting buildings, are currently enjoying rapid growth in popularity [4]. Horizon Decks are a category of overhead walkway that often connects two or more buildings in an urban areas. They often connect train stations or other transportation with its own footbridges and span many km in various Asian nations. Skyways often link the first few stories above ground level, but sometimes they are considerably higher, like in the Malaysian Petronas Towers. Since retail businesses frequently occupy places in the structures connected by walk ways, the area along the skyway may serve as a mall. Sky bridges connecting buildings are frequently seen in non-commercial regions with closely related structures, such as university campuses (Wikipedia, 2017) [6].
Key Words: Twin tower, Connecting beams, Response Spectrum Analysis, Base shear, Storey displacement, Storey drift, ETABS.
1. INTRODUCTION 1.1 General To satisfy the needs of the urban population, developing nations are gradually converting to tall structure development. High-rise buildings now have a variety of exteriors and show dynamic behavior due to the
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