Conference Papers

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    Dynamic Soil–Structure Interaction Effects in Integrated Retaining Wall-Building System
    (Springer Science and Business Media Deutschland GmbH, 2022) Vinay, N.S.; Amrita; Jayalekshmi, B.R.; Shivashankar, R.
    As the area of land suitable for construction goes on reducing day by day, it is a challenge for civil engineers to utilise the space available in most efficient way possible. This study explores the feasibility of integrating buildings with retaining walls for utilising the maximum space available in commercial zones where the landscape is at different levels demanding the provision of retaining walls. A retaining wall of 6 m height and a multi-storey RC frame having 18 m height in the adjoining lower ground at a distance of 4 m are considered for the study. The effects of integrating the retaining wall to building frame by utilising the 4 m space available between them have been studied by providing a connection through the available space and by attaching the retaining wall as a shear wall to the building leaving no space in between them. The three-dimensional finite element model of the integrated retaining wall-building system has been analysed under dynamic loading. Parameters such as deflection and acceleration at top most storey, bending moments, and shear forces in building components are evaluated. Results are compared amongst different cases of retained soil types and different positions of building from retaining wall. The results show considerable reduction in the building deflection and acceleration when the two structures are connected through the space. Reduction in shear force and bending moment in building components are observed when the two structures are attached to each other without any space in between. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
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    A Review on Behavior of Piled Raft Foundations Under Various Loads
    (Springer Science and Business Media Deutschland GmbH, 2022) Amalu, P.A.; Jayalekshmi, B.R.
    Piled raft foundations are a combined system of deep foundation and shallow foundation. In this type of foundation systems, the pile footings are provided beneath a raft or mat footing. Thus, the piled raft foundations can be constructed either by providing raft foundation connected to the pile footings or by providing a cushion layer between raft and pile footings. The first type of piled raft foundation is generally termed as connected piled raft foundations, and the latter piled raft foundations. Piled raft foundations is termed as disconnected can be subjected to different types of loadings, like vertical and inclined loading depending on the type of superstructure, lateral loading induced by earth pressure as well as seismic loads and moments induced by the eccentricity in loadings. Numerous studies have been conducted on the behavior of piled raft foundations under independent and combined effects of these loadings. This article aims to summarize these literature works to review the behavior of piled raft foundations under static and dynamic loadings acting in different directions. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.