2017-18

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    Hybrid Fiber Reinforced Concrete with the addition ofStyrene Butadiene Rubber (SBR) Polymer -An Experimental Study
    (2018-06-22T09:29:49Z) Gajendra, R; Varun; Ravi Kumar, Reddy; Anush, BS
    Fibre Reinforced concrete is a well-known composite material used in civil engineering and other applications. Conventional concrete has poor tensile strength so its capacity to absorb Energy is limited. The weakness in tension zone can be overcome by strengthening their matrix with reinforcing fibrous materials. Presence of fibres in concrete mix improves tensile strength, flexural strength and structural quality of the material as well. At the same time it is well known that the concrete is porous and the porosity is due to water-voids, air voids or due to inherent porosity of gel structures itself and the strength of the concrete is naturally reduced. It is investigated and conceived by many research workers that dropping of porosity results in improvement in the strength of concrete. The addition of monomer (Styrene Butadiene) and consequent polymerization is the modern practice adopted to decrease the present porosity of the concrete and to improve the strength. The present study is done on the mechanical behaviour of hybrid fibre reinforced polymer concrete. Experimentation includes compression strength test, flexural strength and split tensile strength test for M30 grade concrete mix, where concrete was reinforced with 2% fibres with combinations of Crimped fibres + Hooked End steel fibres, To this combination SBR polymer was added in 0, 5, 10, 15, 20 and 25 percentages by the volume of water and strengths were found out. The results indicated that as the polymer content increased to up to 15% showed that strength and workability also increased and decreases beyond all. There was a considerable increase in compressive strength, but there was a great strength achievement in tensile strength and flexural strength for 15% polymer content.
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    Comparative Analysis of a Multistoried Building with and without Shear wall using STADD Pro.
    (2018-06-22T09:18:43Z) Sumith, B N; Prashanth, G M; Sangamesh
    In the seismic design of a multi storey building To ensure the stability against the lateral force caused by earth quake various methods are used, the most commonly used method is provision of shear wall to the building. The reinforcement concrete shear wall is the most reliable method of construction of shear wall which make the structure resistant against lateral forces, as it imparts stiffness to the structure and provides enough strength which minimises the damages caused by the earthquake. In this paper three models are analysed one without shear wall and two with shear wall at different location, one at the corner and one with shear wall at the faces and core of the building through STAAD Pro. Equivalent static method is used for software validation and response spectrum method is used for comparison of three models
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    Fibre Reinforced Self Compacting Concrete
    (2018-06-22T09:01:15Z) Shivshankar; Rakesh, S; Raju, Angadi; Virupaksha
    The concept of self compacting concrete (SCC) was proposed by prof. okamura at Tokyo. He gave the first prototype by using materials existing in the market. The SSC has now took with enthusiasm across the world in both site and precast work. Practical application has been determined by research on physical and mechanical properties of SCC. Earlier SCC consist of more cementitious paste, the mix required well specialized and controlled placing method to avoid segregation, but the higher cement paste made the better shrinkage and more heat generation. The basic principle is that it gets compacted by its own weight without entrapped air completely while flowing in the formwork. In higher reinforced structural member, it fills all the voids and gaps to maintain concrete as horizontal level when it is placed. Along with its composition, it consist of similar components like as conventionally vibrated normal concrete that is cement, aggregates, water, admixture. Due to use of more dosage of plasticizer or super-plasticizer leads to reduction in the liquid limit and giving better workability, more the powder content as lubricant for the coarse aggregates. Using viscocity modifying agent will increase the viscocity of concrete for better handling.
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    Evaluation of Steel Slag Aggregates as a Coarse Aggregate in Concrete Mix
    (2018-06-22T08:52:50Z) Srinivas, N; Prashanth, Kumar K; Rajakumar, A M; Swati M, Patil
    The main objective of this research is to investigate the possibility of utilizing waste steel slag in concrete production. In this project experimental investigation conducted on optimum steel slag replacement with coarse aggregate. After the formation of by-product steel slag, in large amount from steel industries. This steel slag is disposed to open land area, it makes land pollution and harmful to environment. It has good physical parameters and gives enough strength to concrete and due to this it is suitable to bear heavy load. In further study coarse aggregate is replaced by steel slag, and then concrete is prepared. The replacement ratio which have been studied were, 20%, 40%, 60%, 80%, and 100% by weight. Water–cement ratio kept 0.42. Concrete made with steel slag as coarse aggregate replaced achieved better performance compared to normal concrete. Physical properties of conventional concrete and coarse aggregate replaced concrete are compared. On fresh concrete slump test was preformed to check workability of concrete and after then compressive strength and split tensile strength was checked. Thus steel slag is appropriate substitute of coarse aggregate in concrete mix for construction.
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    Analysis and Design of Multistoried Building Subjected yo Dynamic Loading
    (2018-06-22T08:43:32Z) Pavan, V; Prajwal, P; Prathik S, Reddy; Ramesh, DNP
    Recommendations provided by seismic codes help the designer to improve the behaviour of structures so that they may withstand the earthquake effects without significant loss. Seismic codes are unique to a particular region or Country. They take into the account the local seismology, accepted level of seismic risk, properties of available materials, methods used in the field of earthquake engineering and property. Most of the recommendations of IS codes are based on observations during past earthquakes as well as experimental and analytical studies made by scientists, engineers and seismologists. In India, the 1st seismic code namely IS 1893 was published in 1962. Seismic analysis and design for this project will be in compliance with IS 456/IS 1893, The concept of earthquake resistant design is that the building should be designed to resist the forces which arises due to design basis earthquakes, with only minor damages and the forces, which arises due to maximum considered earthquakes with some accepted structural damages but no collapse. The design philosophy was established considering the following aspects: 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. The structure should not collapse when subjected to severe ground motion that could possibly occur at the field. Such earthquake is characterized as maximum considered earthquakes. Buildings are designed as per Design based earthquake, but the actual forces acting on the structure is more than the design earthquake. So, in higher seismic zones Ductility based design approach is preferred as ductility of the structure narrows the gap. The primary objective in designing an earthquake resistant structure is to ensure that the building has enough ductility to withstand the earthquake load.
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    Study on Autoclaved Aerated Concrete Blocks (AAC Blocks)
    (2018-06-22T08:03:41Z) Nawazullah, N; Nasir, Husen; Saifali M, Bagawan; Midhun, Chakravarthy
    Autoclaved Aerated Concrete (AAC) Blocks is an ultra light concrete masonry blocks. It can weigh as little as 1/5th of ordinary concrete blocks due to its distinct cellular structure featuring millions of tiny pockets of trapped air. This cellular structure gives AAC BLOCKS a number of exceptional physical characteristics. AAC BLOCKS consist of basic raw materials that are widely available. These include sand, cement, lime, flyash, gypsum, aluminium powder paste, water and expansion agent. The finished product is upto five times the volume of raw materials used with air content of 70%-80%(depending on the required strength and density) .Due to its large increase in volume AAC Blocks is very resource efficient. AAC Blocks is one of a material which can cope up with shortage of building raw materials and can produce a lightweight, energy efficient and environmental friendly concrete. This type of light weight concrete has no coarse aggregate in its mixture and it can be mentioned that aerated light weight concrete mortar which is aerated with gas injection and also can be aerated using air entraining agents. AAC Blocks has many benefits such as Heat insulation , Sound insulation ,Fire and Mould resistance, Reduced dead weight and many more. Curing is an important factor affecting mechanical and physical properties of concrete in different categories. AAC Blocks can reach high strength values with less drying shrinkage. Hence it can be concluded that Autoclaving process has beneficial affects on strength development and also on shrinkage of Aerated concrete Blocks. Keyword- Autoclaved Aerated concrete, AAC, lightweight concrete, heat insulation, sound insulation, fire resistance, reduced dead weight
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    Highway Construction using Plastic Waste
    (2018-06-22T07:27:24Z) Dharshan, V; Pavan, Venkatesh; Arinam, Das
    This project is a comparative study of normal bitumen and waste plastic added bitumen. This study helps in increasing the strength of bitumen by addition of non- degradable plastic waste which provides reduction in the percentage of bitumen. The waste plastics like polythene bags, milk covers from various sources are collected, cleaned and dried for further processing. The waste plastic is then processed in shredding machine and the shredded plastic is then mixed with the hot bitumen. The normal bitumen and waste plastic added bitumen is tested as per specifications in IRC: SP:53:2010 ,IS 3370.Bitumen can be modified with waste plastic pieces and which can be used as a top layer coat of flexible pavement. This waste plastic modified bitumen show 20% better in stability, density and more resistant to water.
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    Design, Analysis and Estimation of G+4 Multi storey Precast Structure in comparison to Conventional Structure
    (2018-06-22T07:15:03Z) Uday, Vishnu; Anu, JS; Tenzing, Pema T; Vanlalhruaii, C
    Out of the various determinants that lead to success a project, construction management plays vital role among them. Delay in project would cause wastage resources and money needs be analyzed. The methodology adopted has direct impact on strength quality structure. In this aspect, precast concrete is considered produce better productivity reduce completion time, cost dependency work force. This reviews summarizes cost, system order compare with conventional. The present-day world is witnessing the construction of very challenging and difficult structural engineering works. The concept and approach towards the analysis of design of structures is totally redefined with the application of new structural aid software’s such as Etabs and STAAD. The time affective and economic advantages of this software’s are distinct from conventional and manual methods of analysis and design. In the current project titled “Design and Analysis of Multi-story residential building using STAAD”. A sincere attempt is made to design a multi-story residential building using STAAD and by doing so an attempt is made to understand the behavior of the building as a whole rather than the behavior of the individual structural member. The main objective of this project is to design multi-storey building (G+4) using pre-cast method and conventional method. Software used in this project are AutoCAD for planning and drafting, STAAD Pro for analysing, designing and check, Excel for result which will be produced in excel sheet. In the developing county, this project has higher market value as to carry out manually calculation of each component slab, beam and columns is difficult and time consuming & by using high efficient software we can reduce design time and complete project in early time. In construction and real state, time is money which results in saving large amount of money.
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    Comparative Analysis of Porotherm Blocks and Solid Concrete Blocks for Low Cost Housing
    (2018-06-22T07:07:19Z) Ganesh Raj, Regmi; Ayush, Neupane; Diwash, Koirala; Prajwal, Karki
    As the population grows, the price in every product increases including cement and construction material. With the growth in population, the needs for residential properties are marking in all time demand in the construction industry. To develop an effective mechanism for providing appropriate technology based shelter particularly to the vulnerable group and economically weaker section. The concept of use of alternative materials helps in utilization of industrial wastes and recycled materials such as rice husk, coal ash, granite slurry, etc. thus save in natural resources. Utilization of the alternative materials like Porotherm blocks. A hallmark of design and ingenuity when it comes to cost effective, safe and green construction practices. This new age wall solution helps you save on your steel and concrete expenditures as it allows buildings to be constructed without RCC frame structures. Ideal for up to Ground + 3 floors. The product is robust and 100% natural with Thermal insulation property promoting comfortable indoor climate all year round. High compressive strength bricks ≥ 7 N/mm2 enabling load bearing construction. Savings of structural cost as the concept eliminates the columns.
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    Studies on Different Locations of Shear Wall in Multistoried Building for Structural Stability
    (2018-06-22T06:59:19Z) Swapnil, Baral; Samyak, Paudel; Gaurav Jung, Khatri; Pranab, Khatiwada
    In seismic design of multistoried building, shear walls are most common structure adopted to make the structure earthquake resistant. These are constructed to counteract the lateral loads caused by wind load and seismic loads. Shear walls provide adequate stiffness to the structure. So that the lateral drift will be in limits. Generally shear walls are the vertical cantilever which acts as a column. This investigation presents the study and comparison of earthquake behavior of buildings with and without shear wall using STAAD Pro. In this study, reinforced concrete buildings are analyzed by changing the various position of shear wall with different locations considering various parameters such as peak story shear, frequency, time period and base shear. In recent decades, shear walls and tube structures are the most appropriate structural forms, which have caused the height of concrete buildings to be soared. So, recent RC tall buildings would have more complicated structural behaviour than before. Therefore, studying the structural systems and associated behaviour of these types of structures would be very interesting. Here, we will study the structural aspects of G+4 RC buildings, located in the high seismic zone. To have a seismic evaluation of the building, a lot of analyses were performed to verify its behaviour. Finally, having some technical information about the structural behaviour of the case would be very fascinating and useful for designers.
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    Dampness in Buildings
    (2018-06-22T06:51:15Z) Benjamin, Lalduhsaka; B., Lalthlamuana; C.L, Lalremsiama; Manoj, Rawol
    E-waste or electronic waste is any broken or unwanted electrical or electronic appliance. E-waste is an inevitable by-product of technological revolution. Electronic waste and the minimal regulations involving recycling have developed into a global problem today. Discarded and unwanted electronics are finding their way into landfills, primitive recycling method that have an impact on the surroundings. These waste components are responsible for hazardous pollution of the environment and effects the health of the population. In this project, an effort has been made to understand E-waste generation, segregation, Disposal methods, nuisance in Electronic city by working with ELCITA and 4R Recyclers.
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    Analysis of Multistorey(G+3) Building
    (2018-06-22T06:38:09Z) Aditya, Paul; Ajay Kumar, Badhiya; Amish, Bhardwaj
    To carry out a complete analysis of the main structural elements of a multi-storey buildings using STAAD To calculate the Shear force (S.F.D) & Bending Moment (B.M.D) of the complex loading members of the building To design the structural elements based on bending moment and shear force
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    A Comparative Study of Seismic Coefficient Method & Response Spectrum Method of Seismic Analysis for a Multi-Storeyed Building
    (2018-06-22T06:25:36Z) Anup, Pudasaini; Chandrakant, Satara; Deepak Kumar, Gupta; Rajesh, Sah
    Earthquakes are very disastrous and cause a great harm to living life, material life and buildings. Hence proper dynamic analysis for building having earthquake threat is needed. This will ensure proper designs resulting in an earthquake proof structure. In this thesis, the earthquake responses of symmetric multi-storied building by two methods are studied. The methods include seismic coefficient method as recommended by IS Code and modal analysis using response spectrum method of IS Code. The seismic analysis of multi-storeyed building by above two methods includes the results of base shear, lateral force, storey shear and section displacement. The responses obtained by above methods in extreme zone V as mentioned in IS code are then compared. Test results Base Shear, Lateral Force, Storey Shear & Section Displacement are compared.
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    Plan, Analysis and Design of Hospital Building
    (2018-06-22T06:03:31Z) Pavankumar; Mahanth Gowda, S; Naveen Yadav, TV
    Hospital building provides medical service to people. The main purpose of our project is to satisfies the medical needs of the people.This is proposed plan for a location at Begur. As the site we selected is located next to nice road where there isa lack of proper medical facilities near by.It is developing area.So we are proposing a hospital in this location . In order to provide services effectively, the hospital has to be well planned, analysed and designed. In this project, we aim to take up the role of responsible civil engineers in planning, analysing and designing a hospital building. The structural systems in the building are to be planned appropriately so as to be economical, functional and non-obstructive to the general functioning of the building. Schematic structural system for the proposed hospital block are to be detailed and appropriately named. Planning is done using AUTOCADD software Analysis of the structure is done using STAAD pro. Various load cases are used for the analysis so as to provide a structure that can withstand the various forces it may be subjected to during its service life. Design of structural elements is done using IS456-2000 (Plain and Reinforced Concrete -. Code of Practice). The design will aim to achieve Structural & functional integrity of the building and to meet the desirable Structural performance under characteristics service design loadings.
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    Steel Fiber Reinforced Self Compacting Concrete
    (2018-06-21T12:45:10Z) Bhavana, N; Chaitra, S.J; Punith, .R; Karthik, .K
    Self compacting concrete is a flowing concrete mixture that is able to consolidate under its own weight. The highly fluid nature of SCC makes it suitable for placing in difficult conditions and in sections with congested reinforcement. SCC offers a rapid rate of concrete placement, with faster construction times.
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    Parametric Studies on Bridges Due to Dynamic Loads
    (2018-06-21T12:10:25Z) Sharu Ahamed, HA; Sourabh Anil, Patil; Akshaya Kumar, BK
    A bridge is a structure built to span physical obstacles without closing the way underneath such as a body of water, valley, or road, for the purpose of providing passage over the obstacle. There are many different designs that each serve a particular purpose and apply to different situations. Designs of bridges vary depending on the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, the material used to make it, and the funds available to build it.
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    Application of Queuing Theory at Toll Plaza
    (2018-06-21T10:05:27Z) Santhosh, N E; Skanda Venkatesh, A; Yogesh, B
    Toll plazas have become means for collecting revenue in order to build network of roadways which in turn improve safety, comfort, reduce average travel time and improve the capacity of roads  The study of queuing is important to find out new design methods in arranging the toll plazas and means of operating the toll plazas which in turn improve the service rate at the toll booth and the capacity of the tollbooth otherwise would have created long queues.  In the present study a continuous attempt has been made in understanding how the toll booth works, which is being designed on queuing theory.  The study involves collecting the geometric attributes of the toll plaza, the arrival pattern of vehicles to the queuing area, the service provided by the system.
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    Redesign of Storm Water Drains in Chinnappanahalli Kere Catchment
    (2018-06-21T09:52:20Z) Archana, Gopinath; Dilip Kumar, G; Sai Somesh, V; Yadav, C R
    With advent of housing developments, the canals were encroached upon and became drains. Lakes were filled up and became housing layouts. The drains were used as dumping ground for construction debris and solid waste from the housing areas. Canal systems which used to function very well transferring excess water downstream got interrupted and many low-lying areas got submerged even with a small flood. Thus, the rehabilitation of existing drains has assumed significance. The project identifies the deficiencies in the existing Storm water drains and also the measures to correct them. The entire catchment area is divided into sub catchments that form the designated units for data collection. The redesign of storm water drains is based on the principles of hydraulics to meet the required capacities, which is technically, economically, socially, legally and environmentally feasible.
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    Experimental Investigation of Fiber Reinforced Concrete Using Different Types of Steel Fibers
    (2018-06-21T09:44:10Z) Bhavyashri, R; Deepika, B G; Gangamma, K; Vanitha, B
    Concrete is strong in compression but weak in tension. As concrete is brittle material the failure in concrete due to tension is sudden. There are also cracks in concrete due to shrinkage and these micro cracks propagate and leads to failure. To safeguard the concrete against flexural cracks fibers are used in concrete section which is known as fiber reinforced concrete
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    Life Cycle Cost Analysis of Pavement
    (2018-06-21T09:32:59Z) Gouramma, B.M; Aditya, Ghimire; Bharat, Thapa; Prashant, Thapa
    LIFE CYCLE COST ANALYSIS OF PAVEMENT (LCCA) is detail study of transportation project relating pavements starting from its design phase to its entire service life. It determine the total cost and value of item over the entire cycle along with pavement thickness and type. The cost of road construction includes design expenses, material extraction, construction equipment, rehabilitation and maintenance strategies. In this project a stretch of 24km national highway of BUTWAL, NEPAL was considered and various data like pavement performance, traffic, and climatic condition, economic indicators were collected and integrated. Flexible pavement was designed for design period of 10 year with maintenance of 15 years and was compared with rigid pavement designed for period of 30 years to finalize optimum performance of pavement based on pavement cost and strain, stress analysis. Based on above study we conclude that the initial cost of rigid pavement is 28% higher than the initial cost of flexible pavement but these costs get balanced during the entire 30 year life since more durability and serviceability is provided by the pavement