International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 13 Issue: 08 | Aug 2026
p-ISSN: 2395-0072
www.irjet.net
DESIGN AND ANALYSIS OF MULTI STOREY R.C.C. BUILDING HAVING FLOATING LIFT WITH AND WITHOUT TRANSFER GIRDER Nayan Yogesh Kothari1, Prof. P. J. Salunke2 1M.E. Structural Engineering, Department of Civil Engineering, MGM College of Engineering and Technology, Navi
Mumbai, India
2Professor, Department of Civil Engineering, MGM College of Engineering and Technology, Navi Mumbai, India
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Abstract - The present study proposes a comparative
concrete buildings because they can influence stiffness, force distribution and lateral response.
analytical investigation of a multi-storey reinforced cement concrete (R.C.C.) building having a floating lift with and without a transfer girder. The study is motivated by the increasing requirement for flexible architectural planning, open lower-floor spaces and vertical transportation systems in multi-storey buildings. The proposed building consists of two basement levels, a ground floor, sixteen upper floors and a terrace. Two three-dimensional structural configurations are considered. In Model-01, the floating lift is provided without a conventional transfer girder. An R.C.C. wall is directly connected to the supporting beam at the required level, with the wall reinforcement developed from the supporting beam, providing the intended wall-to-beam load-transfer mechanism. In Model-02, a conventional transfer-girder arrangement is adopted, with a floating column supported on the transfer girder and continued up to the terrace level. The proposed study focuses on the structural concept, load path, modelling methodology and governing design considerations rather than presenting numerical results. The models are intended to be developed in ETABS and evaluated under gravity, wind and seismic loading in accordance with relevant Indian Standards. The study further identifies the critical local regions, particularly the wall-to-beam junction in the no-transfergirder model and the transfer girder and supporting members in the comparative model. The work establishes the theoretical and analytical framework for the subsequent detailed analysis and design of floating-lift systems.
The concept considered in the present study is a floating lift arrangement. In the proposed configuration, the lift wall does not continue as a conventional continuous structural element through the lower levels. Instead, the lift-related structural wall is supported at the required level through the surrounding framing system. The project report identifies this arrangement as an alternative to a conventional transfer-girder solution and focuses on the direct R.C.C. wall-to-beam load-transfer mechanism. The study considers two configurations so that the effect of the adopted load-transfer mechanism can subsequently be evaluated. The first model represents an R.C.C. building with a floating lift without a transfer girder. The second model represents a comparative arrangement with a transfer girder and floating column. Both configurations are intended to use consistent building geometry, material properties, loading and support assumptions so that the influence of the structural arrangement can be studied systematically.
2. STRUCTURAL MECHANISMS
1. INTRODUCTION
Impact Factor value: 8.315
WORKING
2.1 Mechanism of Floating Lift System without Transfer Girder
Modern multi-storey buildings increasingly require structural arrangements that can accommodate architectural flexibility, open spaces and vertical transportation facilities. Conventional structural systems generally maintain continuity of columns and walls from the upper floors to the foundation. When a vertical structural element is discontinued, the resulting load path becomes discontinuous and the forces have to be transferred through other structural members. Such discontinuities are important in high-rise reinforced
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In multi-storey reinforced concrete (R.C.C.) structures, creating open functional spaces at lower floor levels interrupts continuous vertical members, creating structural irregularities that alter primary load paths. The two primary arrangements for handling discontinuous elevator cores operate as follows:
Key Words: R.C.C. building, floating lift, transfer girder, floating column, load transfer, ETABS, seismic analysis, structural irregularity.
© 2026, IRJET
CONCEPTS
In the alternative floating lift core configuration, heavy transfer girders are completely eliminated at the termination level: Primary Structural Role: Loads from the elevator shaft walls are transferred directly into supporting floor frame beams and integrated reinforced concrete elements (such as wall/pardi sections and floor diaphragms).
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