http://210.212.227.212:8080/xmlui/handle/123456789/511 2026-05-17T00:00:30Z http://210.212.227.212:8080/xmlui/handle/123456789/529 PERFORMANCE BASED DESIGN OF CIRCULAR SCRAP TYRE PAD ISOLATOR BY MACHINE LEARNING Anandhakrishnan, M; Asif, Basheer Base isolation systems have conventionally been used to mitigate the major impacts of earthquakes on the structures and attenuate their seismic responses. The scrap tyre pads are proven to be a material that resists vibrations. The optimal design of the base isolator has a vital role in the performance of a structure in response to an earthquake. Machine learning (ML) methods have been widely applied to predict the outputs of various problems in the structural engineering field. This study focuses on the development of a Machine Learning (ML)-based approach to predict the design of a base isolation system. The base isolator used in the present work is the Scrap Tyre Pad (STP) in a circular configuration. Conventionally, alternate layers of rubber bonded with steel reinforcement are used as isolators. As scrap tires consist of steel reinforcement inside the rubber itself, it can be considered as a cost-effective method. The presence of steel provides substantial vertical stiffness and rubber imparts horizontal flexibility. The eco-friendly Scrap Tyre Pads (STPs) provide several advantages such as low cost, ease of handling, and shear stiffness adjustments. In the present study, experimental evaluation of Circular Scrap Tyre Pads (CSTPs) under compression and cyclic loading is done in different configurations to analyse the structural behaviour of CSTPs as a base isolator. The damper properties obtained from the experiment are numerically analysed using non-linear time history analysis in ETABS to assess the isolator’s performance subjected to seismic loading on masonry structures. The data from the numerical evaluation is stored in Machine Learning (ML) database and the ML algorithm is trained to predict the design characteristics of the base isolator for a given structure. The performance of ML algorithms is validated using statistical metrics. 2023-05-01T00:00:00Z http://210.212.227.212:8080/xmlui/handle/123456789/528 STUDY OF FLEXURAL BEHAVIOUR OF ECC FERROCEMENT I-BEAM Ajmal, S N; Mohammed, Thowsif Due to its poor crack width control, limited flexural behaviour, delamination of mortar, etc., the use of ferrocement as a structural element is restricted. Utilizing ferrocement in construction will assist reduce the overall weight of the building, hence lowering its inertia. The key benefit is that using ferrocement can lower the overall cost of building, as material costs, labour costs, and storage costs make up the majority of the entire cost. In this study, I-beams made of ferrocement are cast, their flexural properties are evaluated, and it is determined whether they are a good alternative to traditional beams for use in residential building construction. Ferrocement I-beams made of standard mortar mix have been cast and tested; a second group of I-beams casted using Engineering Cementitious Composites (ECC) instead of standard mortar mix, and the difference in behaviour will be examined. ECC ferrocement I-beam showed better load carrying capacity, crack resistance, energy absorption and ductility index 2023-07-01T00:00:00Z http://210.212.227.212:8080/xmlui/handle/123456789/527 ANALYSIS OF PUNCHING SHEAR STRENGTH OF REINFORCED LIGHTWEIGHT CONCRETE FLAT SLAB STRENGTHENED BY GFRP Anjali, V; Hazeena, R Flat slab structural systems are frequently used in various construction scenarios, such as multistorey buildings, bridges, parking garages, and foundation engineering, for their great economical superiority and ease of construction. The slab-column connection problem may be effectively solved by reducing the weight of RC slabs. The introduction of the reinforced lightweight concrete flat slab is helpful in decreasing the weight of the RC flat slabs which thereby solves the slab column connection problem. Punching shear is a failure mechanism in structural components like slabs and foundations when subjected to concentrated force and it occurs at column support points in flat slabs. FRP system is used, to strengthen LWC slabs subjected to punching shear with some advantages such as corrosion resistance, extraordinary tensile strength, low density, and high strength-to-weight ratio. The influence of GFRP on the punching shear strength of lightweight concrete slabs is examined in this study. Glass fibers possess exceptional characteristics equal to or better than steel in certain forms. Low thermal conductivity, high strength, good electrical insulator, elasticity, incombustible, stiffness, and protection from chemical injury are the distinct properties provided by GFRPs. In this study, numerical analysis of LWC slab strengthening using a GFRP strip was investigated. The difference in punching shear capacity using different orientations, locations, widths and fiber orientations is tested. Evaluations are carried out in terms of punching shear capacity, energy absorption and ductility factor. The numerical analysis found that the strengthened slab improved punching shear capacity as compared to the normal LWC slab. The punching shear strength increases when the strip is placed in the diagonal direction, increasing the number of strips and placing the strip at an offset distance from the loading surface. 2023-07-12T00:00:00Z http://210.212.227.212:8080/xmlui/handle/123456789/526 NUMERICAL STUDY ON THE BEHAVIOUR OF CFRP AND BFRP STRENGTHENED RC BEAM-COLUMN JOINT WITH BEAM OPENING UNDER CYCLIC LOADING Ashok, S; Rekha, Ambi Beam-column joint is the most important part of any framed building structure. In many cases due to mechanical, electrical and plumbing needs openings are made in beam column joint at transverse beam section. Many times, these openings are made without checking the strength requirement of joint. Presence of these opening may cause detrimental effect on structure especially considering the effect of seismic loads. Which brings in the requirement of strengthening of the beam-column joint to prevent premature failure resulting in endangering the life of people and structure. The various strengthening techniques used of discussion are; fibre reinforced polymer (FRP) composites, Ferrocement, Steel plate etc. The purpose of this study the efficiency of retrofitting beam column junctions with transverse beam opening a with Carbon Fiber Reinforced Polymer (CFRP) and Basalt Fiber Reinforced Polymer (BFRP). Analysis can be done numerically to assess the performance of the original and improved joint models using nonlinear finite element analysis. The performance has been investigated in terms of load carrying capacity, deflection, failure pattern and displacement ductility. The parameters of study include; Size, shape, distance of opening from joint and thickness of FRP used. 2023-07-12T00:00:00Z