iosr-JMCE   Volume-15 ~ Issue-4 ~ July-Aug 2018

Abstract: The primary objective of this study is to investigate the effect of foundation flexibility and uplift on the seismic response of building structures located in Ahmedabad, where substantial geotechnical effects occurred during the earthquake. To perform the analysis, the basic data about the soil conditions at the site was collected from subsoil investigation reports that were compiled by various government agencies, local public body and private consultants. The geotechnical model included a nonlinearrepresentation of the soil material below the mat foundation. This foundation model could accommodate both uplift and plastic yielding of the soil material. The superstructurewas idealized as a typical RCC frame structure subjected to the E-W componentof 26January2001 Bhuj earthquake recorded at Ahmedabad station in Gujarat. The authors performed the analysis using the nonlinear computer program using MATLAB.

Keywords -Earthquake , multistory building , foundation , displacement , Soil properties

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[2]. A Huckelbridge, and R Clough, Seismic Response of Uplifting Building Frame.Journal of Structural Division(ASCE) 104(8), 1978, 1211-1229.
[3]. V.Prakash, G.H.Powell, and S.Campbell, Drain-2DX Base Program Description and User Guide, Report No. UCB/SEMN-93/17, Department of Civil Engineering, University of California, Berkeley, CA, 1993.
[4]. I.Psycharis, Dynamic Behavior of Rocking Structures Allowed to Uplift. Report No. EERL 81-02, Earthquake Engineering Research Laboratory, California Institute of Technology. Pasadena. CA. USA, 1981.
[5]. M.E.Rodríguez, and R. Montes, Effects of Base Uplift on the Capacity of Earthquake Ground Motions to Damage Structures, Proc. 6th U.S. National Conference on Earthquake Engineering, Earthquake Engineering Research Institute, Seattle,1998 31st May – 4th June 1998. Washington, USA. 1998, 104-105....

Abstract: Corrosion is preponderant in the petroleum environment because most known factors that can cause to extreme various types of corrosion of a wide range of materials are abundantly present in the physicochemical composition of crudes. Every crude oil has about the same kinds of constituent chemical types but in different proportions, so different types of crudes coupled with their processing, transportation and storage conditions can have different corrosivities to materials in different refineries. Kaduna refinery uses Nigerian crudes sometimes blended with foreign crudes to produce some fuels and chemical industrial raw feedstock. The refinery has however been experiencing maintenance problems over its years of existence. This paper is a report of field and literature surveys that attempted to lay bare the basis of the problems. The study found that the entire refinery structures...........

Keywords Refinery products, daily needs, low production, non-availability, maintenance costs, corrosion, and ways out .

[1]. Mars G. Fontana. Corrosion engineering-international edn. McGraw-Hill Book Co. 1987, pp. 5-120.
[2]. Uhilig, H. H. Corrosion and corrosion control: An introduction to corrosion science and engineering. John Wiley and Sons Inc, 1971, pp. 1-270.
[3]. SanthanaPrabha. R. Joseph Rathish, R. Dorothy, G. Brindha, M. Pandiarajan, Adulameed Al-Hashem and S. Rajendran. Corrosion Problems in petroleum industry Section D-Review Eur. Chem. Bull., 2014, 3(3), 300-307.
[4]. Review of corrosion management for offshore oil and gas processing. Prepared by Capcis Limited for the Health and Safety Executive Manchester, 2001.
[5]. Green Packaging Inc. http://green-vci.com...

Abstract: In the field of fracture mechanics of concrete as well as for health risk assessment of reinforced concrete structures in marine environment, the initiation and propagation of cracks due to corrosion of reinforcement plays a vital role. In the present study, the location of crack initiation is evaluated experimentally. The thicknesses of rust layer around the reinforcement and width of crack due to this rust formation were also investigated. Accelerated corrosion test were used to furnish the experiment. It was found that the major crack was initiated from the outer surface of the cover concrete and propagated towards the steel reinforcement interface. Corrosion induced crack of width 0.225 mm was caused by a thickness of rust layer of 0.358 mm.

Keywords -Initiation location of crack, propagation of crack, thicknesses of rust layer, width of crack.

[1]. Bazant, Z. P. Physical Model for Steel Corrosion in Concrete Sea Structures - Theory. J. Struct. Div.105, 1137–1153 (1979).

[2]. Liu, Y. & Weyers, R. E. Modeling the Time-to-Corrosion Cracking in Chloride Contaminated Reinforced Concrete Structures. ACI Mater. J.95, 675–680 (1998).

[3]. Magne Maage, Steinar Helland, Ervin Poulsen, Øystein Vennesland, and J. E. C. Service Life Prediction of Existing Concrete Structures Exposed to Marine Environment. ACI Mater. J.93, (1996).

[4]. Torres-Acosta, A. A. & Martnez-Madrid, M. Residual Life of Corroding Reinforced Concrete Structures in Marine Environment. J. Mater. Civ. Eng.15, 344–353 (2003).

[5]. Andrade, C., Alonso, C. & Molina, F. J. Cover cracking as a function of bar corrosion: Part I-Experimental test. Mater. Struct.26, 453–464 (1993)...

Abstract: The paper presents thoroughly the process for the analytical estimation of reinforced concrete structures structural vulnerability. In order to achieve this purpose, both nonlinear static and dynamic analysis have been implemented on a 3D standard reinforced concrete moment resisting building and the seismic response is obtained analytically by both methods. The selected building for illustration was designed according to older seismic codes and regulations (Hellenic Code of 1959) and without conforming to modern seismic detailing requirements. The 3D model was subjected to conventional Static Pushover Analysis and bidirectional Incremental Dynamic Analysis (IDA) with the............

Keywords -Seismic response; Structural performance; Pushover analysis; Dynamic analysis; Vulnerability

[1]. ATC-40:Applied Technology Council, (1996), Seismic Evaluation and Retrofit of Concrete Buildings Volume 1, California Seismic Safety Commission, Volume I, Report SSC 96-01, Redwood City, California.
[2]. Bonett, R., Barbat, Al. and Pujades, L. (2004), Seismic Fragility Curves for Traditional Unreinforced masonry buildings of Barcelona Spain, Journal of Structural Engineering, 1, n° 4, 3-11.
[3]. CEB-FIP, Model Code 1990 (1990).
[4]. GREEK CONCRETE CODE (1954), Athens, Greece.
[5]. GREEK SEISMIC CODE (Greek Royal Degree of 1959) (1959), Athens, Greece..

Abstract: This research on Optimization of Distribution Network using LINGO was carried out in the Nigerian Bottling Company (NBC) which has many distribution centres all over the country. Three plants and twenty two warehouses within the South-South and South-East region of Nigeria were selected for this study. Model for the distribution problem of the company were developed using linear programming approach. The data collected was analyzed using LINGO programming. The analytical result obtained was thirty billion, nine hundred and three million, nine hundred and fifteen thousand, twenty nine naira, eleven kobo (N30, 903,915,029.11). The actual distribution cost obtained from the company's annual report is almost equal to this value. The optimization result obtained was............

Keywords -Supply chain, Optimization, model, Warehouse, Distribution, LINGO

[1]. Bell, L. (2010) A comparison of question scales used for measuring customer satisfaction.
[2]. International journal of science industry management. 7(4), 4- 26.
[3]. Boulton, A. (2012) Do customer loyalty program really work? Sloan management review, summer, 71-82.

[4]. Bramel, J. & Simchi-Levi, D., (2000), The logic of logistics: Theory, algorithms, and pplications for logistics, Springer.
[5]. Chandra P., & Fisher M.L., (2000). Coordination of production and distribution planning, European journal of operational research, 72(3), 503-517..

Abstract: Aero-dynamic performance of a ship is important for the ships and other vehicles in transportation. Aero-dynamic performances of a ship affected on service speed of the ship, air resistance acting on the ship, power energy as well as roll, pitch, yaw and stability of the ship. More ever, it also directly effects on health of the passengers, captains or employers who works on the ship and safety of the ship. If aero-dynamic performance of ship is not good, it may be making accident. In this paper, the authors present a study on aero-dynamic performances of a small passenger and the effects of hull shape on aero-dynamic performance of the ship. By using a commercial Computation...........

[1]. Ngo. V.H, Y. Ikeda.A Study on Interaction Effects between Hull and Accommodation on Air Resistance of a Ship. Proceeding of the JASNAOE, Hiroshima, Japan, 2013, Vol.16, ISSN: 2185-1840, pp.278-281.
[2]. K. Mizutani, D. Arai, Ngo. V.H, Y. Ikeda. A Study on Reduction of the Wind Resistance Acting on a Wood Chip Carrier. Proceeding of the JASNAOE, Hiroshima, Japan, 2013, Vol.16, ISSN: 2185-1840, pp.282-285.
[3]. K. Mizutani, Y. Akiyama, Ngo. V.H, Y. Ikeda. Effects of cargo handling equipment on wind resistance acting on a wood chip carrier. Proceeding of the JASNAOE, Hiroshima, Japan, 2014, Vol.18, ISSN: 2185-1840, pp.421-424.
[4]. Ngo. V.H, K. Mizutani, Y. Ikeda. Reducing air resistance acting on a ship by using interaction effects between the hull and accommodation. Proceeding of the 7th AUN/SEED-Net RCMME 2014, Hanoi, Vienam, 2014, pp.497-501.
[5]. Ngo. V.H, Phan. A.T, Luong. N.L, Y. Ikeda. A Study on interaction Effects on air resistance acting on a ship by shape and location of the accommodation. Journal of Science and Technology, Vietnam, 2015, Vol 27, pp. 109-112...

Abstract: The need to reduce the high cost of Ordinary Portland Cement in order to provide accommodation for the populace has intensified research into the use of some locally available materials that could be used as partial replacement for Ordinary Portland Cement (OPC). A pozzolan is a siliceous and aluminous material which in itself possesses little or no cement value but which will in finely divided form and in the presence of water react chemically with calcium hydroxide at ordinary temperature to from compounds possessing cement properties. In this research three............

Keywords -Cement,Pozzolans, Compressive Strengths, and Lightweight Concrete

[1]. Abubakar, B. H., Ramadhansyah, P.J.,&Megat, M.J. (2011). Effect of rice husk ash fineness on the chemical and physical properties of concrete. Magazine of Concrete Research, 63 (5), 313-3201.
[2]. Adesanya, O.A., Oluyemi, K.A., Josiah, S.J., Adesanya, R.A., Shittu, L.A.J., Ofusori, D.A., Bankole M.A., &Babalola, G.B. (2008). Ethanol production by Saccharomyces Cereviasiaefrom cassava peel hydrolysate. TheInternet Journal of Microbiology, 5 (1), 25-35.
[3]. American Standard for Testing Materials, Specification for fly ash and raw or calcium natural pozzolana for use as a mineral admixture in Portland cement concrete. ASTMC 2005, 618-78
[4]. American Society for Testing and Materials, Specifications for pozzolanas. ASTM International, USA, ASTM C618, 1978
[5]. Badmus, M. A., Audu, T. O., &Anyata, B. U. (2007). Removal of lead ion from industrial waste waters by activated carbon prepared from periwinkle shell. Turkish Journal of Engineering and Environmental Science, 31 (7), 251–263...

Abstract: The use of Computational Fluid Dynamics (CFD) to predict internal and external flows has risen dramatically in the past decade. The widespread availability of engineering workstations together with efficient solution algorithms and sophisticated pre - and post-processing facilities enable the use of commercial CFD codes by graduate engineers for research, development and design tasks in industry. In the ocean engineering in which the cost of experiment is dramatically high, or sometime the experimental method is impossible to employ, it becomes the vital tool in designing and optimizing the shape of vessels and propulsion. In this topic, authors used the commercial software, ANSYS-Fluent v.14.5, to illustrate the effects of rudder and propeller on hydrodynamics performances of the marine propeller. The first objective of the paper uses the numerical method to analyze and build the characteristic curves of marine propeller. The second aim is to study how the rudder affects the hydrodynamic..........

Keywords -CFD, rudder, propeller, hydro-dynamic, interaction effect.

[1]. Takayuki WATANABE, T.K., Masatsugu MAEDA, Shin Hyung RHEE, Simulation of steady and unsteady cavitation on a marine propeller using a rans cfd code, in Fifth International Symposium on Cavitation. 2003.
[2]. J. Bosschers, G.V., A.R. Starke, E. van Wijngaarden, Computational analysis of propeller sheet cavitation and propeller-ship interaction, in RINA conference "MARINE CFD2008. 2008: Southampton, UK.
[3]. Banik, A. and M.R. Ullah, Computation of Hydrodynamic Characteristics of A Marine Propeller Using Induction Factor Method Based on Normal Induced Velocity. Procedia Engineering, 2017. 194: p. 120-127.
[4]. Karim, M.M. and N. Naz, Computation of Flow Field around Ship Hull including Self Propulsion Characteristics at Varying Rudder Positions. Procedia Engineering, 2017. 194: p. 96-103.
[5]. Liu, D., The Numerical Simulation of Propeller Sheet Cavitation with a New Cavitation Model. Procedia Engineering, 2015. 126: p. 310-314.