iosr-JMCE   Volume-14 ~ Issue-2 ~ Mar-Apr 2017

Abstract: Diagrid structural typology has its origin at the crossroads of architecture and engineering and has proved to be extremely compliant in structuring broad range of building forms and spans. The early applications of diagrid systems have not focused on exploring its potentials so much, hence a need for this issue is thus created. As a fact, buildings with regular geometry, evenly spread mass and stiffness in both plan and elevation; undergo lesser damage than buildings having irregular geometry. The diagrid module angle is a criterion which largely affects the structural performance, so under moderate to extreme earthquakes...........

Keywords: Macro module, Top Storey Displacement, Storey shear, Storey Drift, Storey Stiffness, Time period.

[1] Nishith B. Panchal, Dr. V. R. Patel, Dr. I. I. Pandya, "Optimum Angle of Diagrid Structural System", Interanational Journal of Engineering and Technical Research (IJETR), ISSN: 2321-0869, Volume-2, Issue-6, June 2014
[2] Giovanni Maria Montuori, Elena Mele, Giuseppe Brandonisio and Antonello De Luca, "Geometrical patterns for diagrid buildings: Exploring alternative design strategies from the structural point of view," University of Naples Federico II, Department of Structures for Engineering and Architecture, Naples, Italy, pp. 112-127, April 2014.
[3] Mele E, Toreno M, Brandonisio G, De Luca A. Diagrid structures for tall buildings: case studies and design considerations. Struct Design Tall Spec Build 2014;23:124–45.
[4] Montuori GM, Mele E, Brandonisio G, De Luca A. Design criteria for diagrid tall buildings: stiffness versus strength. Struct Design Tall Spec Build 2013
[5] Moon KS. Sustainable structural engineering strategies for tall buildings. StructDes Tall Spec Build 2008;17(5):895–914.

Abstract: This paper presents experimental study the potential use of limestone dust for producing a lightweight composite material some of physical properties of concrete material having various levels LPW in No-Fines concrete material is investigated. The obtained compressive strength, flexural strength, split tensile strength, unit weight satisfy the relevant Indian standards. The result shows the effect of high level replacement of LPW. Recycling of unmanaged LPW as new brick material supplements appears to be the solution of environmental problems but also the problem of high cost.

[1]. Li, G, Yu, Zhao Z, Li J, Li C, properties study of cotton stalk fiber/gypsum composite, cement and concrete Research 2003; 33(1), 43 – 6
[2]. Galetakis M, Raka S. Utilization of Limestone dust for arfterint stone production an experiment approved minerals engg. 2004; 17:355-7
[3]. Manning D. Exploitation and use of quarry fines. Report No. 087/MIST2/DACM/01, 19 March 2004.
[4]. Aspiras FF, Manalo JR. Utilization of textile waste cuttings as building material. Journal of Materials Processing Technology 1995;48(1-4):379-84.

Abstract: The present paper describes the modification and conversion of the constant speed DI diesel engine to mechanically operated gasoline direct injection engine (GDI). The gasoline fuel was supplied to the fuel injector by newly developed GDI fuel injection component. Engine head was modified to fix the spark plug and fuel injector at proper position. Compression ratio was changed to operate on GDI mode. Experimental investigations were carried out to optimize the fuel injection and spark ignition timing. Optimized engine achieved low brake specific fuel consumption, maximum in-cylinder pressure, minimum cycle by cycle variations and maximum heat release rate..............

Keywords: Compression ratio, Diesel engine, Gasoline direct injection, Port fuel injection, Spark timing.

[1]. M. Costa, U. Sorge, and L. Allocca, CFD optimization for GDI spray model tuning and enhancement of engine performance, Advances in Engineering Software, 49 (2012) Pages 43–53.
[2]. M. Drake and D. Haworth, Advanced gasoline engine development using optical diagnostics and numerical modeling, Proceedings of the Combustion Institute, 31 (2007) Pages 99–124.
[3]. J. Lujan, H. Climent, R. Novella and M. Perea, Influence of a low pressure EGR loop on a gasoline turbocharged direct injection engine, Applied Thermal Engineering 89 (2015) Pages 432-443.
[4]. F. Zhao, M. C. Lai and D. L. Harrington, Automotive spark-ignited direct-injection gasoline engines, Progress in Energy and Combustion Science, 25 (1999) Pages 437–562.
[5]. T. Kume, Y. lwamoto, K. lida, M. Murakami, K. Akishino, and H. Ando, Combustion Control Technologies for Direct Injection SI Engine. SAE Paper 960600.

Abstract: The research goal is the study of fiber content and fiber type influences on NSC compressive and tensile strengths. fiber type[(steel, polypropylene and glass ) and fiber content were studied. A constant water/binder equals to 0.45 and aconstant binder content =400kg/m3 were used. the percentages of nano silica[NS] that replaced cement in this research were 0 and1.5%. Polypropylene fiber [PPF] with 12mm length and 4 dosages of 0%, 0.2%,0.4% and 06.% are used. Glass fiber [GF] with 18mm length and 4 dosages of 0%, 0.2%,0.4% and 06.% are also used..........

Keywords: Nanosilica [NS] ,glass fibers ,steel fibers ,compressive strength and super-plasticizer.

[1]. P. Di Maida , E. Radi , C. Sciancalepore, and F. Bondioli . Pullout behavior of polypropylene macro-synthetic fibers treated with nanosilica. Construction and Building Materials 2015; 82: 39–44.
[2]. Mohammad Haji Sotoudeh and Mostafa Jalal. Effects of waste steel fibers on strength and stress-strain behavior of concrete incorporating silica nanopowder .Indian Journal of Science and Technology 2013 ; 6(11): 5411–5417.
[3]. Ding Y, and Kusterle W. Compressive stress–strain relationship of steel fiber-reinforced concrete at early age. Cement and Concrete Research 2000; 30(10): 1573–1579.
[4]. Sorooshian P, and Bayasi Z . Fiber type effects on the performance of steel fiber reinforced concrete. ACI Materials Journal 1991 Technical Paper ; 88(2): 53–60.
[5]. Jalal M . Compressive strength enhancement of concrete reinforced by waste steel fibers utilizing nano SiO2. Middle-East Journal of Scientific Research 2012; 12(3): 382–391.

Abstract: Concrete Gravity Dams are important lifeline structures and represent the fragrance of people's standard of living. Dam structures that span navigable waterways are inherently at a risk for seismic vibrations and as such they must be designed to resist these vibrations. These are very complex structures and subjected to various types of forces both static and dynamic in nature. However, these earthquake vibrations are fundamentally dynamic in nature and a static analysis procedure may not be adequate in designing hydraulic structures like Dam. This paper presents the dynamic time history analysis of a concrete gravity dam by using STAAD-PRO. Here Finite Element..............

Keywords: Concrete Gravity Dam, Time History Method, Stress Contour, IS Code 6512:1984, STAAD-PRO.

[1]. Rohan kulkarni (2015) "Non-Linear Time History Analysis of Concrete Gravity Dam by Using SAP2000"International Journal of Innovative Research in Science, Engineering and Technology (An ISO 3297: 2007 Certified Organization) Vol. 4, Issue 4, April 2015.
[2]. Pratik Patra (2014) "Development of Methology for Seismic Design of Concrete Gravity Dam" , B.Tech Thesis, National institute of technology Rourkela.
[3]. Chagantipati Tanooja, (2016) "Design of Gravity Dam by using Seismic Coefficient Method in Different Zones", International Journal for Technological Research in Engineering Volume 4, Issue 4, December-2016.
[4]. Kaushik Das, (2011) "Seismic Response of Concrete Gravity Dam", HTC 2011.
[5]. Joshi S.G (2015) "Analyzing the Effect of Foundation Inhomogeneity on the Seismic Response of Gravity Dams" International journal of civil and structural engineering volume 6, no 1, 2015.

Abstract: The occurrence and characteristics by the configuration of the Process planning on the fabrication, which can have assignment comprising a broad range of activities to design and develop an appropriate fabrication process for producing a fragment. Interpretation of the part design, selection of fabrication processes, definition of operations, process sequences, machining datum's, geometrical dimensions and tolerances are some common activities associated with the assignment. Process planning is also "the association between product design and fabrication" with the supplementary commission to upkeep design of competitive products..............

Keywords: Process Planning, Qualitative, Quantitative.

[1]. Anderberg, S., 2012. Methods for improving performance of process planning for CNC machining - An approach based on surveys and analytical models. Göteborg: Chalmers University of Technology.
[2]. A. A. Shabana, K. E. Zaazaa, and H. Sugiyam. Rail Road Vehicle Dynamics: A Computational Approach. CRC Press, Taylor and Francis group, New York, 2008.
[3]. A. Shabana. Dynamics of Multibody Systems, Second Edition. Cambridge University Press, Cambridge, United Kingdom, 1998.
[4]. A. Shabana and J. R. Sany. A survey of rail vehicle track simulation and flexible multibody dynamics. Nonlinear Dynamics, 26, 2001.
[5]. A. A. Shabana, K. E. Zaazaa, J. L. Escalona, and J. R. Sany. Development of elastic force model for wheel/rail contact problems. Journal of Sound and Vibration, 269, 2004.

Abstract: The aim of this paper is to apply fuzzy soft set theory to predict the decisionmaking of purchase goods. In approximate reasoning, relations on the fuzzy parameterized soft sets have shown to be of a primordial importance. The basic premises of fuzzy soft set are presented as well as a detailed analysis of fuzzy logic developed to solve various decision and matrix application problems.

Keywords: Fuzzy soft set, Matrix application, Uncertainty.

[1]. Deli I., Cagman N., (2014 ) "Relations on FP-Soft Sets Applied to Decision Making Problems", Comput. Math. Appl. Pp.1-13.
[2]. Bora M., Bora B., Neog T. J., Sut D. K., (2014), "Intuitionistic fuzzy soft matrix theory and its application in medical diagnosis" Annals of Fuzzy Mathematics and Informatics Volume 7, No. 1, pp. 143-153.
[3]. A. Kalaichelvi, P. Kanimozhi. "Impact Of Excessive Television Viewing By Children – An Analysis Using Intuitionistic Fuzzy Soft Matrices" Int Jr. of Mathematics Sciences & Applications Vol.3, No.1, 2013. Pp. 103 – 108.
[4]. Mondal J.I., Roy T.K., "Theory of Fuzzy Soft Matrix and its Multi Criteria in Decision Making Based on Three Basic t-Norm Operators" International Journal of Innovative Research in Science, Engineering and Technology, Vol. 2, Issue 10, 2013. Pp. 5715 – 5723.
[5]. Basu T.M., Mahapatra N.K. and Mondal S.K., Different Types of Matrices in Fuzzy Soft Set Theory and Their Application in Decision Making Problems IRACST – Engineering Science and Technology: An International Journal (ESTIJ), ISSN: 2250-3498,pp. 389-398.Vol.2, No. 3, 2012

Abstract: Multi element airfoils are high lift devices and provide improved aerodynamic characteristics which are beneficial for several applications such as aircraft wings, wind turbine blades. Simulations were performed using the computational panel code developed in MATLAB for the airfoils, 30P30N, GA (W)-1, RAF16, NLR 7301 configurations. The results were obtained for varying angle of attacks from -10 to 20 deg to include the effects of turbulence. Thelift and drag coefficients are evaluated for the airfoil configurations, 30P30N, for Reynolds number range of 1.6x105 – 1x106..............

Keywords: Airfoil, Lift coefficient, Drag coefficient, Pressure, Chord, Slat, Flap.

[1]. Zhenhui Zhang, Dong Li, Numerical investigation of flow over multi element airfoils with lift enhancing tabs, 28th International congress of the aeronautical sciences, ICAS 2012, China.
[2]. Frederick Zahle, Mac Guanaa, Niels N Sorensen, Design and Wind Tunnel Testing of Thick Multi element high lift airfoil. Proceedings of EWEA 2012, European Wind Energy Conference &Exhibition, EWEA,.
[3]. ShreyasNarsipur, Brent W. Pomeroy, Micheal Selig, CFD Analysis of Multi element Airfoils, for Wind Turbines. 30th AIAA Applied Aerodynamics Conference. New Orleans, Louisiana, US.
[4]. Loren Ahaus, Nichols Liggett, David A Peters, Marylin J Smith, Unsteady aerodynamics of single and multi-element airfoils.
[5]. Theory of Wing Sections, Including summary of airfoil data. H. Abbot, A von Doenhoff. Dover publications Inc. New York.(2000)

Abstract: The piled raft foundation allows the high load bearing capacity and reduces the settlements in soils at very economic way as compared with the conventional foundation designs. This paper presents combinations of 3-D numerical analysis (by Plaxis 3D Foundation v 1.1) of piled raft foundation on clayey soil to investigate the behaviour of piled raft system in soils under different loading conditions. The settlement was measured at the centre of the models of pile raft with (single, two, three & four) piles. Finally, the behaviour of piled raft foundation w.r.t effect of number of piles, spacing between piles, elastic of modulus and raft size on the load carrying capacity of piled raft foundation system (PRFS) are assessed and conclusions are made.

Keywords: Plaxis 3D Foundation, Pile raft foundation System (PRFS), Settlements, Soil.

[1]. Clancy, P. and Randolph, M. F. (1993), an approximate analysis procedure for piled raft foundations. Int. J. Numer. Anal. Meth. Geomech. 17: 849–869. doi:10.1002/nag.1610171203.
[2]. Hameedi, M. K., "Experimental and Theoretical Study for Piled Raft Foundation in Soft Clay", Unpublished M.Sc. Thesis, Building and Construction Engineering Department, University of Technology, Baghdad, Iraq, 2011.
[3]. Y.C. Tan and C.M. Chow, "Design of Piled Raft foundation on soft Ground", 2004. [4]. Bowles, J.E., "foundation Analysis and Design", Fifth edition, McGraw-Hill", 1997.
[5]. Vermeer, P.A., and Brinkgreve, R.B.J., "PLAXIS 3D User's Manual, Version 1.1", Balkema, Rotterdam, The Netherlands, 2004.