Papers by Dr Valsson Varghese
AIP conference proceedings, 2024
Materials Today: Proceedings
CRC Press eBooks, Apr 6, 2023
International Journal of Advanced Research in Science, Communication and Technology
This paper presents a literature review on viscous dampers. Civil constructions such as high-rise... more This paper presents a literature review on viscous dampers. Civil constructions such as high-rise skyscrapers, towers, and long-span bridges are created with more flexibility as a result of fast economic development and modern technology increase in their susceptibility to external excitation. Therefore, these flexible structures are susceptible to be exposed to excessive levels of vibration under the action of strong wind or earthquake. The viscous damper is one of the devices used to minimize the seismic forces.
IOSR Journal of Mechanical and Civil Engineering, 2014
This paper presents a study of wind loads to decide the design critical parameter of a multistori... more This paper presents a study of wind loads to decide the design critical parameter of a multistoried building. The significant of this work is to estimate the design loads estimate based on the basic wind speed and other factors of a structure. In the present study, review of paper in used is the critical analysis of frame structure is made, to valued in study a multistoried building is analyzed for wind loads using IS 875 code. The wind loads are estimated based on the design wind speed of that zone .The wind loads so obtained on the building have been compared for different building. Finally it is found the wind loads are more critical in bending moment, shear force and displacement.
Zenodo (CERN European Organization for Nuclear Research), May 27, 2023
SSRN Electronic Journal, 2022
Lecture Notes in Mechanical Engineering, 2021
Smart Technologies for Energy, Environment and Sustainable Development, Vol 1, 2022
Infrastructure requirements in urban areas make mandatory construction of underground structure w... more Infrastructure requirements in urban areas make mandatory construction of underground structure which serve as space for car parking and housing utilities of various kinds. Demand for underground space has increased which has triggered several levels of basement. Earthquake-resistant design of earth retaining structures like foundations retaining walls and earth dams are very important to minimize the devastating effect of earthquake menace. This paper reviews the effect of earthquake forces on underground structure. Since underground reinforced concrete structures interact with the surrounding soil, the behavior of the interfacial zone between the structure and the surrounding medium of the underground structure should be considered for accurate seismic analysis.
This study presents Effect of partially replacement on compressive strength, tensile strength and... more This study presents Effect of partially replacement on compressive strength, tensile strength and split tensile strength is investigated. Results from replacement i.e. 0, 20, 40, 60 and 80% was considered for partially replacing sand with Granulated blast furnace slag. The effect of partially replacing of Fine aggregates with Granulated blast furnace slag is investigate in this study. The 28 days compressive strength at 28 days by use of GGBS in concrete was found better as compared to conventional concrete but results differ when 80% GGBS was used as fine aggregate, where as 60% replacement compressive strength improved by 22.52% and reduced up to 19.5% at 80% replacement.
In this paper is studied the structural analysis software 'STAAD Pro v8i' is used to stud... more In this paper is studied the structural analysis software 'STAAD Pro v8i' is used to study the effect of sloping ground on multistoried building performance during earthquake. The purpose of the paper is to perform linear static analysis of medium height RC buildings and investigate the changes in structural behavior due to consideration of sloping ground. This project report comprises of seismic analysis and design of a R.C. building with symmetrical plan. The structure should withstand the moderate earthquakes, which may be expected to occur during the service life of structure with damage within acceptable limits. Such earthquakes are characterized as Design Basis Earthquakes (DBE). The building is modeled as a 3D space frame with six degrees of freedom at each node using the software STAAD-PRO. Building (G+15) is analyzed using Response Spectrum method on 0°, 7.5°, 15°, 22° slope ground. The Response Spectrum as per IS 1893 (Part 1):2002 for medium soil is used. Comparis...
International Journal of Engineering Applied Sciences and Technology, 2021
ETABS stands for Extended Three-Dimensional Analysis of Building Systems. ETABS is commonly used ... more ETABS stands for Extended Three-Dimensional Analysis of Building Systems. ETABS is commonly used to analyze: Skyscrapers, concrete structures, low and high rise buildings, and portal frame structures. The case study in this paper mainly emphasizes on structural behavior of multi-storey building for different plan configurations like rectangular, C, L and I-shape. Modelling of 15-storeys R.C.C. framed building is done on the ETABS software for analysis ETABS issue, for analysis and design for building systems. ETABS features are contain powerful graphical interface coupled with unmatched modeling, analytical, and design procedures, all integrated using a common database. STAAD and ETABS both of the software are well equipped and very much capable of handling different shape of the structures, static and dynamic loadings and different material properties.
International Journal of Research in Engineering and Technology, 2016
Its today's trend that we are expanding vertically instead of horizontally and constructing tall ... more Its today's trend that we are expanding vertically instead of horizontally and constructing tall structures, either due unavailability of land or due man's desire to achieve something which unachievable and challenge himself. However whatever be the case as when we increase the height of the structure wind load becomes one of the most predominating factor in the design of any high rise structure, hence it is very important that a structural engineer should understand how the structure will behave as the height increases.In this paper effect of wind on tall structure is studied and analyzed, two geometry, square and rectangular with same plan area were selected. Software models for these two geometries were made in STAAD with three different storeyheightsi.e 15 storey, 25 storey and 30 storey and models were analyzed for both along and across wind condition for various parametric values.
Jetmixing is widely used in various processing units for purposes as homogenization of physical p... more Jetmixing is widely used in various processing units for purposes as homogenization of physical properties of liquids in tanks, to ensure proper heat and mass transfer in various operations, prevention of stratification, and prevention of deposition of suspended particles. As Flocculation process is an important part of surface water treatment, use of jet in flocculation is an effective solution so as to remove turbidity in an efficient way. Most of the researchers have focused on experimental estimation and developed various mixing correlations, considering the effect of parameters like jet velocity, jet configuration, tank geometry. Recently, use of CFD simulation to predict parameters as well as flow patterns precisely that validates the experiments is on the rise. This review focuses on the study of various parameters used in experimental and CFD work on jet mixing and general conclusions have been drawn concerning the various parameters.
International Journal of Modern Trends in Engineering and Research, 2015
A green building is an environmentally sustainable building, designed, constructed and operated t... more A green building is an environmentally sustainable building, designed, constructed and operated to minimise the total environmental impacts. Carbon dioxide (CO2) is the primary greenhouse gas emitted through human activities. It is claimed that 5% of the world’s carbon dioxide emission is attributed to cement industry, which is the vital constituent of concrete. Due to the significant contribution to the environmental pollution, there is a need for finding an optimal solution along with satisfying the civil construction needs. Apart from normal concrete bricks, a clay brick, Foam concrete is a new innovative technology for sustainable building and civil construction which fulfills the criteria of being a Green Material. This paper concludes that Foam Concrete can be an effective sustainable material for construction and also focuses on the cost effectiveness in using Foam Concrete as a building material in replacement with Clay Brick or other bricks.
1PG student (Structural Engg), KDKCE, Nagpur, Maharashtra(India) 2Asst. Professor (Civil Engg. De... more 1PG student (Structural Engg), KDKCE, Nagpur, Maharashtra(India) 2Asst. Professor (Civil Engg. Dept), KDKCE, Nagpur, Maharashtra (India) 3Professor (Civil Engg. Dept), KDKCE, Nagpur, Maharashtra (India) 4State Head, Birla Gold Cement Company, Nagpur, Maharashtra (India) ------------------------------------------------------------------------***------------------------------------------------------------------------Abstract: Concrete is one of the most popular construction materials used since hundred years ago. Concrete production needs natural resources like water, coarse aggregates, fine aggregates and cement, whose production is not only costly due to natural resources but also energy efficient. Cement manufacturing is mostly responsible for CO2 emission in atmosphere and tends to pollute the air. Several studies have been carried out to investigate the possibility of using dissimilar materials for partial replacement of cement to reduce pollution as well as achieve healthy envir...
Concrete structural components exist in buildings and bridges in different forms. Understanding t... more Concrete structural components exist in buildings and bridges in different forms. Understanding the response of these components during loading is crucial to the development of an overall efficient and safe structure.Different methods have been utilized to study the response of structural components. Experimental based testing has been widely used as a means to analyse individual elements and the effects of concrete strength under loading. While this is a method that produces real life response, it is extremely time consuming, and the use of materials can be quite costly. The use of finite element analysis to study these components has also been used. Unfortunately, early attempts to accomplish this were also very time consuming and infeasible using existing software and hardware. In recent years, however, the use of finite element analysis has increased due to progressing knowledge and capabilities of computer software and hardware. It has now become the choice method to analyze co...
An earthquake resisting building is one that has been deliberately designed in such a way that th... more An earthquake resisting building is one that has been deliberately designed in such a way that the structure remains safe and suffers no appreciable damage during destructive earthquake. However, it has been seen that during past earthquakes many of the buildings were collapsed due to failure of vertical members. Therefore, it is necessary to provide vertical members strong so as to sustain the design earthquake without catastrophic failure. Capacity designing is aiming towards providing vertical members stronger compared to horizontal structural elements. A structure designed with capacity design concept does not develop any suitable failure mechanism or modes of inelastic deformation which cause the failure of the structures. In capacity design of earthquake resisting structures, elements of primary lateral load resisting system are chosen suitably and designed and detailed for energy dissipation under severe inelastic deformation. KeywordCapacity Design, Hinges, Pushover Analysis
Box girder bridge deck, is the most common type of bridges in world and India, it consists of sev... more Box girder bridge deck, is the most common type of bridges in world and India, it consists of several Slab or girders. The span in the direction of the roadway and connected across their tops and bottoms by a thin continuous structural stab, the longitudinal box girders can be made of steel or concrete. The Simple supported single span concrete bridge deck is presented in present study. Skew in a bridge can result from several factors, including natural or manmade obstacles, intricate intersections, space limitations, or mountainous terrain. The skew angle can be defined as the angle between the normal to the centerline of the bridge and the centerline of the abutment or pier cap. Due to high traffic road can hardly change in order to eliminate the skew. Therefore, considerable numbers of skew bridge decks are constructed. The skew angle effects on the behaviour of the bridge. Therefore, there is need for more research to study the effect of skew angle on performance of bridges. In ...
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Papers by Dr Valsson Varghese