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i-manager's Journal on Structural Engineering (JSTE)

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Assessment of Uncertainty of Error in Design Flood Estimates Using 2-Parameter Log Normal Distribution
The Impact of Plan Irregularity on Multistory Building Response: A Pushover Analysis
Static and Vibration Analysis of Reinforced Cement Concrete Cellular Beams: A Three-Dimensional Study
Pumice as a Coarse Aggregate Substitute for Lightweight Concrete: Strength and Density Assessment
Masonry Infill in Structural Analysis: Effects on Seismic Performance

Most Cited

Volume 7 Issue 2 June - August 2018

Research Paper

Time History Analysis of Elevated Circular Tank whose Column is Stiffened by using Wing Slab

Arbaj Khan Demrot* , Rashmi Sakalle, John W.*

* M.Tech Scholar, Department of Structural Engineering, TRUBA Institute of Engineering and Information Technology, Bhopal, Madhya Pradesh, India.

-* Associate Professor, Department of Civil Engineering, TRUBA Institute of Engineering and Information Technology, Bhopal, Madhya Pradesh, India.

Demrot, A. K., Sakalle, R., Tiwari, N. (2018). Time History Analysis of Elevated Circular Tank whose Column is Stiffened by using Wing Slab, i-manager's Journal on Structural Engineering, 7(2), 1-11. https://doi.org/10.26634/jste.7.2.14485

Abstract

Elevated storage tanks play an important role in transmitting water at longer distances and storing water for emergency situations. In elevated water tanks, the whole mass is directly supported on columns, hence the columns are responsible for resisting lateral forces, so designing columns in such a way that a columns will face less structural damage is most important. In this paper, elevated circular water tank is analyzed in Staad.Pro by using a time history analysis method. Here, the structure is analyzed for an empty condition for ordinary columns and with some modification in whole slender column. In this paper, the major concern is about frame of modified elevated tank, where a wing slab is attached with column. The capacity of both tanks is 500 m³ with a 4 m bracing interval. Through time history analysis by using El-Centro earthquake time-acceleration data, the authors have checked the force distribution, stress contours in columns and beams of both the structures, and the time-displacement and time-velocity graphs at same nodes in both structures at 4 m interval and compared them. Also, they have checked the mode shapes in terms of frequency, time period and mass participation for both the structures. Hence, lower non-linearity is obtained for less time period, of seconds as compared to ordinary tank.

References

[1]. Bureau of Indian Standards. Preliminary Draft Criteria for Design of Rcc Staging for Overhead Water Tanks. (First Revision of IS 11682), Doc: CED38 (7811)P June 2011, http://bis.org.in/sf/ced/CED38(7811)P.pdf. http://www.iitk.ac.in/nicee/wcee/article/5_vol1_640.pdf http://www.vibrationdata.com/elcentro.dat.

[2]. Bureau of Indian Standards. (2000). Plain and Reinforced Concrete- Code for Practice ( ). New Delhi, India.

[3]. Bureau of Indian Standards. (2002). Indian standard criteria for earthquake resistant design of structures (IS:1893:2002 (Part 1). New Delhi, India.

[4]. IITK - GSDMA, Guidelines for Seismic design of liquid Storage tanks, October 2007, http://www.iitk.ac.in/nicee/ IITK-GSDMA/EQ08.pdf.

[5]. Jain, S. K., & Murty, C. V. R. (2005). Proposed draft provisions and commentary on indian seismic code IS 1893 (Part 1). Department of Civil Engineering, Indian Institute of Technology Kanpur.

[6]. Jain, S. K., & Sameer, U. S. (1990, December). Seismic Design of frame staging for Elevated Water Tanks. In Ninth Symposium on Earthquake Engineering, Roorkee (Vol. 1).

[7]. Shepherd, R. (1972). The Seismic response of elevated water tanks supported on cross braced towers, Proceedings of 5^th WCEE.

[8]. Sarokolayi, L. K., Neya, B. N., Amiri, J. V., & Tavakoli, H. R. (2013). Seismic analysis of Elevated Water Storage Tanks subjected to six correlated Ground Motion components. Iranian Journal of Energy & Enviroment, 4(3), 195-203.

[9]. Soroushnia, S., Tafreshi, S. T., Omidinasab, F., Beheshtian, N., & Soroushnia, S. (2011). Seismic performance of RC elevated water tanks with frame staging and exhibition damage pattern. Procedia Engineering, 14, 3076-3087.

[10]. STAAD.Pro. (2007). Structural Analysis and Design Programming-2007 for analysis of displacement, velocity and acceleration graph.

[11]. El Centro Earthquake vibration data. Retrieved from www.vinbrationdate.com/elcentrohtm

[12]. Wilkinson, S. M., & Hiley, R. A. (2006). A non-linear response history model for the seismic analysis of high-rise framed buildings. Computers & Structures, 84(5-6), 318- 329.

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Research Paper

Numerical Study on Effect of Dent Dimensions on Buckling Resistance of Thin Stainless Steel Cylindrical Shell Under Lateral Pressure

N. Rathinam* , B. Prabu**

* Assistant Professor, Department of Mechanical Engineering, Pondicherry Engineering College, Puducherry, India.

** Professor, Department of Mechanical Engineering, Pondicherry Engineering College, Puducherry, India.

Rathinam, N., Prabu, B. (2018). Numerical Study on Effect of Dent Dimensions on Buckling Resistance of Thin Stainless Steel Cylindrical Shell Under Lateral Pressure. i-manager's Journal on Structural Engineering, 7(2), 12-26. https://doi.org/10.26634/jste.7.2.14484

Abstract

Externally pressurized thin cylindrical shells are usually designed based on buckling criteria. The resistance of cylindrical shells under critical buckling pressure load is mainly deteriorated by the geometrical imperfections present on these structures. The dent is one of the local geometrical imperfections, which may be formed in the shells owing to accident or impact loading on them during erection or during on service. In order to numerically investigate the influence of dent dimensions (dent width, dent depth, dent length, and dent inclination) and cylindrical shell dimensions (R/t ratio and L/R ratio) on the buckling resistance of stainless steel dented cylindrical shells, numerical models are generated with a centrally located dent. These models are analyzed using nonlinear general FE software ANSYS with ring type boundary condition at both bottom and top edges.

References

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[2]. Combescure, A., & Gusic, G. (2001). Nonlinear buckling of cylinders under external pressure with nonaxisymmetric thickness imperfections using the COMI axisymmetric shell element. International Journal of Solids and Structures, 38(34-35), 6207-6226.

[3]. Cook, R., Markus, D., Plesha, M. (2002). Concept and Applications of Finite Element Analysis. John Wiley, New York.

[4]. Dieter, G. E. (1998). Mechanical Metallurgy. Mc-Graw- Hill Book Company, London.

[5]. Forde, B. W., & Stiemer, S. F. (1987). Improved arc length orthogonality methods for nonlinear finite element analysis. Computers & Structures, 27(5), 625-630.

[6]. Frano, R. L., & Forasassi, G. (2009). Experimental evidence of imperfection influence on the buckling of thin cylindrical shell under uniform external pressure. Nuclear Engineering and Design, 239(2), 193-200.

[7]. Ghazijahani, T. G., & Showkati, H. (2013). Locally imperfect conical shells under uniform external pressure. Strength of Materials, 45(3), 369-377.

[8]. Ghazijahani, T. G., Jiao, H., & Holloway, D. (2014). Experiments on dented cylindrical shells under peripheral pressure. Thin-Walled Structures, 84, 50-58.

[9]. Ghazijahani, T. G., Jiao, H., & Holloway, D. (2015). Plastic buckling of dented steel circular tubes under axial compression: An experimental study. Thin-Walled Structures, 92, 48-54.

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[15]. Prabu, B., Bujjibabu, N., Saravanan, S., & Venkatraman, A. (2007). Effect of a dent of different sizes and angles of inclination on buckling strength of a short stainless steel cylindrical shell subjected to uniform axial compression. Advances in Structural Engineering, 10(5), 581-591.

[16]. Prabu, B., Raviprakash, A. V., & Rathinam, N. (2012). Numerical buckling analysis of thin cylindrical shells with combined distributed and local geometrical imperfections under uniform axial compression. International Journal of Computer Aided Engineering and Technology, 4(4), 295-320.

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[20]. Rathinam, N., & Prabu, B. (2013b). Strength of dented thin cylindrical shells under external pressure. In Shell Structures: Theory and Application (pp.433-436).

[21]. Rathinam, N., & Prabu, B. (2015). Numerical study on influence of dent parameters on critical buckling pressure of thin cylindrical shell subjected to uniform lateral pressure. Thin-Walled Structures, 88, 1-15.

[22]. Raviprakash, A. V., Prabu, B., & Alagumurthi, N. (2011). Ultimate strength of a square plate with a longitudinal/transverse dent under axial compression. Journal of Mechanical Science and Technology, 25(9), 2377.

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Research Paper

Experimental and Numerical Analysis of Structures Under Blast Loading – A Review

Mudi Charitha* , P. R. Maiti, R.Natarajan*

* PG Scholar, Department of Civil Engineering, Jawaharlal Nehru Technological University Anantapur, India.

Associate Professor, Department of Civil Engineering, Indian Institute of Technology, Varanasi, India.

* Professor, Department of Civil Engineering, Jawaharlal Nehru Technological University Anantapur, India.

Charitha, M., Maiti, P. R, Sashidhar, C. (2018). Experimental and Numerical Analysis of Structures Under Blast Loading – A Review, i-manager's Journal on Structural Engineering, 7(2), 27-36. https://doi.org/10.26634/jste.7.2.14041

Abstract

The terrorist attacks, threats, accidents imposed protuberant danger conditions and odious aesthetic view of public, commercial structures. Thus the study of dynamic response of engineering structures subjected to blast load becomes an interesting area in engineering research communities. Structures under blast and impact loads usually under go large plastic deformations and consequent failure occurs. In designing of structures, the design process for blast impact resisting structures has become more imperative. In this paper, a comprehensive overview of structural response and its characteristics under blast load on the basis of experimental and numerical methods are succinctly reviewed. The current advances in this research area are focused and illustrated. The concept of blast wave and its critical structural responses are classified on the basis of different materials and safety of the structure. Majorly availed numerical and experimental methods were discussed in a wide range with incisive description. The dynamic parameters, such as impulse velocity, acceleration, and displacement of structure under blast load are delineated on the basis of existing numerical techniques and experimental analysis.

References

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Research Paper

Effects of Copper Slag and Stone Dust in Concrete

M. V. Patil* , Y. D. Patil**

* Research Scholar, Department of Applied Mechanics, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, India.

** Assistant Professor, Department of Applied Mechanics, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, India.

Patil, M. V., Patil, Y. D. (2018). Effects of Copper Slag and Stone Dust in Concrete, i-manager's Journal on Structural Engineering, 7(2), 37-42. https://doi.org/10.26634/jste.7.2.14483

Abstract

This study was done to check if the stone dust can be used as a partial replacement to fine aggregate. The tests like compressive strength, Split Tensile Strength, Flexural Strength, Density, Modulus of Elasticity, and Permeability were conducted on cubes, beams, and cylinders. Concrete of M30 was designed for W/C ratio of 0.45. The present research work shows that the characteristics of concrete using stone dust and copper slag as partial replacement to fine aggregate are superior when compared to the control concrete.

References

[1]. Bonavetti, V., Donza, H., Rahhal, V., & Irassar, E. (2000). Influence of initial curing on the properties of concrete containing limestone blended cement. Cement and Concrete Research, 30(5), 703-708.

[2]. Bureau of Indian Standards. (2000). Plain and reinforced concrete-code of practice (IS 456:2000). New Delhi, India.

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[4]. Eren, S., Khaled, K., Irassar, E. F., & Barai, S. V. (2007). Partial replacement using crusher stone dust. IE J-CV, 87, 2006.

[5]. Hameed, M. S., & Sekar, A. S. S. (2009). Quarry dust as replacement of fine aggregates in concrete. New Construction Materials, 52-56.

[6]. Ilangovan, R., & Nagamani, K. (2006). Studies on strength and behavior of concrete by using quarry dust as fine aggregate. CE and CR Journal, 40-42.

[7]. Katz, A., & Baum, H. (2006). Effect of high levels of fines content on concrete properties. ACI Materials Journal, 103(6), 474-482.

[8]. Lohani, T. K., Padhi, M., Dash, K. P., & Jena, S. (2012). Optimum utilization of quarry dust as partial replacement of sand in concrete. Int. J. Appl. Sci. Eng. Res, 1(2), 391-404.

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Research Paper

Fragility Curves For Reinforced Concrete Structural Walls

Ravikant Singh* , Vinay Kumar Singh**

* M.Tech Graduate, Department of Civil Engineering, MMM University of Technology, Gorakhpur, Uttar Pradesh, India.

** Assistant Professor, Department of Civil Engineering, MMM University of Technology, Gorakhpur, Uttar Pradesh, India.

Singh, R., Singh, V. K., (2018). Fragility Curves For Reinforced Concrete Structural Walls, i-manager's Journal on Structural Engineering, 7(2), 43-49. https://doi.org/10.26634/jste.7.2.14039

Abstract

To perform the seismic assessment of reinforced concrete structures, the initial stage is to develop the seismic fragility function and use it to construct the fragility curve to determine the probability of failure of structures during earthquake. The Reinforced concrete structural wall with increase in number of stories is considered under simulated earthquake loading to establish the Peak Ground Acceleration (PGA)-based seismic fragility functions. Time history analysis method is used for developing the seismic fragility function and curves of low to mid-rise Reinforced Concrete (RC) structural walls. Time history method is also used to safeguard the safety of the RC structure from the damages due to earthquake. Time history analysis of the building or structure is done using ETABS software. A MATLAB code is used to plot the fragility curve for four damage states. As the earthquake causes huge damage to the reinforced concrete buildings or structures, it is essential to analyze and study the behavior of the building structure, whether it resists the damages caused to the structure due to shaking of the ground.

References

[1]. Agrawal, P., & Shrikhande, M. (2016). Earthquake Resistant Design of Structures. PHI Learning Private Limited, Delhi, India.

[2]. Bureau of Indian Standards. (2002). Criteria for earthquake resistant design of structures (IS: 1893-(Part 1): 2002). New Delhi, India.

[3]. Chopra, A. K. (1995). Dynamics of Structures Theory and Applications to Earthquake Engineering. Prentice- Hall, Englewood Cliffs.

[4]. Duggal, S. K. (2010). Earthquake Resistance Design of Structure, 4^th Ed. Oxford University Press.

[5]. ETABS Software Version 16.2, Computer and Structures, Inc. Berkeley, California, USA.

[6]. Korkmaz, K. A. (2008, October). Evaluation of seismic fragility analyses. In The 14^th World Conference on Earthquake Engineering.

[7]. MATLAB Software Version R2014a, The Math Works, Inc. Natick, Massachusetts, U.S.A.

[8]. Özer AY, B., & Erberik, M. A. (2008). Vulnerability of Turkish low-rise and mid-rise reinforced concrete frame structures. Journal of Earthquake Engineering, 12(S2), 2-11.

[9]. Porter, K. (2018). A Beginner's Guide to Fragility, Vulnerability, and Risk. University of Colorado Boulder and SPA Risk LLC, Denver, CO, USA.

[10]. Ramamoorthy, S. K. (2007). Seismic fragility estimates for reinforced concrete framed buildings (Doctoral dissertation, Texas A & M University).

[11]. Sengupta, P., & Li, B. (2016). Seismic fragility assessment of lightly reinforced concrete structural walls. Journal of Earthquake Engineering, 20(5), 809-840.

[12]. Tan, K. (2014). Fragility Curves of a RC Frame Building subjected to seismic ground motions. Journal of Civil Engineering Research, 4(3A), 159-163.

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Research Paper

Innovative Smart Material Magneto Rheological (MR) Damper for Building Structures Using Semi-Active Vibration Control

M. Hari Sankar* , G. Hemalatha, D. Tensing*, S. Sundar Manoharan****

* Assistant Professor, Department of Civil Engineering, Sri Indu College of Engineering and Technology, Hyderabad, Telangana, India.

Associate Professor, Department of Civil Engineering, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, India.

* Professor, Department of Civil Engineering, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, India.

**** Professor, Department of Material Science, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, India.

Sankar, M. H., Hemalatha, G., Tensing, D., Manoharan, S. S., (2018). Innovative Smart Material Magneto Rheological (MR) Damper for Building Structures Using Semi-Active Vibration Control. i-manager's Journal on Structural Engineering, 7(2), 50-56. https://doi.org/10.26634/jste.7.2.14265

Abstract

Over the past several decades, a number of researchers have been investigating the innovative seismic materials like Magneto Rheological (MR) Smart Damper. In this research, smart damper is particularly used for Semi - Active vibration control. Many researchers have proposed smart damper device to reduce the entire structural control of vibration. Due to latest high mechanical technology, dynamic range is too large, power requirements are too low, and there is a capacity of large force with different applications to attract and also protect tall buildings, infrastructures, against very severe earthquake and wind loading. This research presents an experimental investigation of single axis shake table with 3-story frame structure and diagonally installed with magneto rheological damper to find the Maximum displacement, velocity, and acceleration. The focus of this concept is to develop a fundamental understanding of frame structures using the purpose of design and fabrication of these smart material devices in structures for natural hazard mitigation.

References

[1]. Ali, S. F., & Ramaswamy, A. (2009). Testing and modeling of MR damper and its application to SDOF systems using integral backstepping technique. Journal of Dynamic Systems, Measurement, and Control, 131(2), 1- 11.

[2]. Aly, A. M. (2013). Vibration control of buildings using magnetorheological damper: A new control algorithm. Journal of Engineering, 2013.

[3]. Avinash, B., Sundar, S. S., & Gangadharan, K. V. (2014). Experimental study of damping characteristics of air, silicon oil, magneto rheological fluid on twin tube damper. Procedia Materials Science, 5, 2258-2262.

[4]. Bajkowski, J., Nachman, J., Shillor, M., & Sofonea, M. (2008). A model for a magnetorheological damper. Mathematical and Computer Modelling, 48(1-2), 56-68.

[5]. Dyke, S. J., Spencer Jr, B. F., Sain, M. K., & Carlson, J. D. (1998). An experimental study of MR dampers for seismic protection. Smart Materials and Structures, 7(5), 693.

[6]. Gavin, H., Hoagg, J., & Dobossy, M. (2001, August). Optimal design of MR dampers. In Proceedings of the USJapan Workshop on Smart Structures for Improved Seismic Performance in Urban Regions (Vol. 14, pp. 225-236).

[7]. Jansen, L. M., & Dyke, S. J. (2000). Semiactive control strategies for MR dampers: Comparative study. Journal of Engineering Mechanics, 126(8), 795-803.

[8]. Kori, J. G., & Jangid, R. S. (2009). Semi-active MR dampers for seismic control of structures. Bulletin of the New Zealand Society for Earthquake Engineering, 42(3), 157-166.

[9]. Metered, H., Bonello, P., & Oyadiji, S. O. (2010). The experimental identification of magneto rheological dampers and evaluation of their controllers. Mechanical Systems and Signal Processing, 24(4), 976-994.

[10]. Nguyen, M., Kwok, N., Ha, Q. P., Li, J., & Samali, B. (2007). Semi-active direct control of civil structure seismic responses using magneto-rheological dampers. In International Symposium on Automation and Robotics in Construction. Lokavani Southern Printers.

[11]. Tsang, H. H., Su, R. K. L., & Chandler, A. M. (2006). Simplified inverse dynamics models for MR fluid dampers. Engineering Structures, 28(3), 327-341.

[12]. Yang, G., Spencer Jr, B. F., Carlson, J. D., & Sain, M. K. (2002). Large-scale MR fluid dampers: modeling and dynamic performance considerations. Engineering Structures, 24(3), 309-323.

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Research Paper

Investigation on Relationship between Compressive and Flexural Strength of Binary Blended Hybrid Fiber Reinforced Geopolymer Concrete

D. Naveen Kumar* , Cheryl**

* PG Scholar, Department of Structural Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, Telangana, India.

** Dean and Professor, Department of Civil Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, Telangana, India.

Kumar, D. N., Ramujee, K. (2018). Investigation on Relationship between Compressive and Flexural Strength of Binary Blended Hybrid Fiber Reinforced Geopolymer Concrete, i-manager's Journal on Structural Engineering, 7(2), 57-62. https://doi.org/10.26634/jste.7.2.14487

Abstract

The global warming is caused by emission of greenhouse gases, such as carbon dioxide, carbon monoxide into the atmosphere (Kumar & Ramujee, 2016; Bhalchandra & Bhosle, 2013). In terms of global warming, the High performance technology could significantly reduce the carbon dioxide emission into the atmosphere caused by cement industries. The present experimental studies are carried out in order to develop a relationship between compressive strength and flexural strength of hybrid fiber reinforced geopolymer concrete. In the present study, the existing relationship in IS 456:2000 was evaluated and then a similar relationship equation was developed for fiber reinforced geopolymer concrete of G40 grade Geopolymer mixes incorporated with different percentages from 0% and maximum up to 2% of hybrid fibers taken by weight of binder (Kumar & Ramujee, 2016). The results of the present experimental study have shown increase in strength properties of Hybrid Fibers Reinforced Geopolymer Concrete (HFRGPC). It was analyzed that the compressive strength and flexural Strength were related together and the 0.5 power relationship was found to be high when compared to Open Platform Communications (OPC) based concrete. Thus the alternative equations were proposed for the HFRGPC.

References

[1]. Ahmad, S. H., & Shah, S. P. (1985). Structural properties of high strength concrete and its implications for precast prestressed concrete. PCI Journal, 30(6), 92-119.

[2]. Ahmed, M. S. S. (2012). Statistical modelling and prediction of compressive strength of concrete. Concrete Research Letters, 3(2), 452-458.

[3]. Bhalchandra, S. A., & Bhosle, A. Y. (2013). Properties of Glass Fibre Reinforced Geopolymer Concrete. International Journal of Modern Engineering Research (IJMER), 3(4), 2007-2010.

[4]. Gajendran, K. A., Anuradha, R., & Venkatasubramani, G. S. (2015). Studies on Relationship between compressive and splitting tensile strength of high performance concrete. APRN Journals of Engineering and Applied Sciences, 14, 6151-6156.

[5]. Ilamvazhuthi, S. S, & Gopalakrishna, G. V. T. (2013). Performance of geopolymer concrete with polypropylene fibres. International Journal of Innovations in Engineering and Technology, 3(2), 148-155.

[6]. Kumar, J. B., & Ramujee, K. (2016). Mechanical & durability characteristics of wollastonite based cement concrete. i-manager's Journal on Civil Engineering, 7(1), 1-7.

[7]. Kumar, V., Mathur, M., & Sinha, S. S. (2005). A case study: Manifold increase in fly ash utilization in India. Fly Ash India.

[8]. Kumutha, R., Fathima, I. S., & Vijai, K. (2017). Experimental investigation on properties of basalt fiber reinforced geopolymer concrete. Journal of Mechanical and Civil Engineering (IOSR-JMCE), 14(3), 105-109.

[9]. Lloyd, N., & Rangan, V. (2010). Geopolymer concrete with fly ash. In Proceedings of the Second International Conference on Sustainable Construction Materials and Technologies (pp. 1493-1504). UWM Center for By-Products Utilization.

[10]. Rajarajeswari, A., & Dhinakaran, G. (2016). Compressive strength of GGBFS based GPC under thermal curing. Construction and Building Materials, 126, 552-559.

[11]. Ramujee, K. (2014). Development of low calcium flyash based geopolymer concrete. International Journal of Engineering and Technology, 6(1), 1-4.

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A Comparative Study on Experimental and Theoretical Bearing Capacity of Ring Footings

Durga Shankar* , Wanda**

* M.Tech Graduate, Madan Mohan Malaviya University of Technology, Gorakhpur, Uttar Pradesh, India.

** Assistant Professor, Madan Mohan Malaviya University of Technology, Gorakhpur, Uttar Pradesh, India.

Shankar, D., Kumar , V. (2018). A Comparative Study on Experimental and Theoretical Bearing Capacity of Ring Footings, i-manager's Journal on Structural Engineering, 7(2), 63-69. https://doi.org/10.26634/jste.7.2.14486

Abstract

The earth provides all the support to any structure depending on various soil conditions. Foundations are the substructures that transmit the load of the structure to earth in such a way that the soil does not get over stressed and do not deform. Types of footings used vary depending on the type of structure, for example, in structures such as transmission towers or water tower, the circular footing is used essentially. Circular footings have been used since ages, but ring footing got less attention than a circular one, despite its greater efficiency and cost-saving nature. Thus, in order to develop new and economical technologies, studying the benefits of rings over circular footing is essential, which is the prime objective of this paper. The parameter (bearing capacity) has been studied experimentally as well as an attempt of numerical analysis is done, in order to understand the behaviour of the sand under the ring footing. The experimental values of the bearing capacity of the ring footing are obtained by performing a series of laboratory tests on the model footing for three different radii ratio 0.2, 0.4, 0.6. While numerical analysis was performed using an empirical equation available in literature. The values of these analyses were then compared and it was determined that the theoretical values were quite higher than that of the experimental values of bearing capacity.

References

[1]. Dhatrak, A. I., & Gawande, P. (2016). Eccentrically loaded small scale ring footing on resting on cohesionless soil. International Journal of Engineering Research and Applications, 6(8), 55-59.

[2]. Fisher, K. (1957). Zur Berechnung der setzung Von undamenten in der for einer Kreisformigen Ringflache. Der Bauingenieur, Berlin, Germany, (German),32(5).

[3]. Haroon, M. & Mishra, S. K. (1980). A study of behavior of annular footings on sand. Proc. of Geotech-1980, Conference on Geotechnical Engineering (Vol. 1, pp. 87- 91).

[4]. Hataf, N., & Razavi, M. R. (2003). The behavior of ring footing on the sand. Iranian Journal of Science and Technology, Transaction B, 27(B1), 47-56. https://doi.org/10. 15680/IJIRSET.2016.0504244

[5]. Hosseininia, E. S., Kumar, J., Chakraborty, M., Ghosh, P., Naderi, E., & Hataf, N. (2016). Bearing capacity factors of ring footings. Geotextiles and Geomembranes, 42(3), 1-7. https://doi.org/10.1016/j.geotexmem.2013.12.010

[6]. Israa, H. G. R. A. S. (2013). Experimental investigation of the bearing pressure for circular and ring footings on sand. Tikrit Journal of Engineering Sciences, 20(3), 64-74.

[7]. Kakroo, A. K. (1985). Bearing capacity of rigid annular foundations under vertical loads (Doctoral Dissertation, University of Roorkee, India).

[8]. Kumar, J., & Bhoi, M. K. (2009). Interference of two closely spaced strip footings on sand using model tests. Journal of Geotechnical and Geoenvironmental Engineering, 135(4), 595-604.

[9]. Mehrjardi, G. T. (2008). Bearing capacity and settlement of ring footings. The 14^th World Conference on Earthquake Engineering.

[10]. Moayed, R. Z., Rashidian, V., & Izadi, E. (2012). Evaluation on bearing capacity of ring foundations on twolayered soil. International Scholarly and Scientific Research and Innovation, 6(1), 950-954.

[11]. Ohri, M. L., Purhit, D. G. M., & Dubey, M. L. (1997). Behavior of ring footings on dune sand overlaying dense sand. In Proc. Int. Conf. Civil Eng., Tehran Iran.

[12]. Saha, M. C. (1978). Ultimate bearing capacity of ring footings on sand (Doctoral Dissertation, University of Roorkee, India).

[13]. Snodi, L. N., (n.d.). Ultimate bearing capacity of ring footings on sand (Masters Thesis, University of Roorkee, India).

[14]. Srinivasan, V., & Ghosh, P. (2013). Experimental investigation on interaction problem of two nearby circular footings on layered cohesionless soil. Geomechanics and Geoengineering, 8(2), 97-106.

[15]. Zhao, L., & Wang, J. H. (2008). Vertical bearing capacity for ring footings. Computers and Geotechnics, 35(2), 292-304.

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Research Paper

Linear and Nonlinear Dynamic Analysis of RC Structure for Various Plan Configurations Using ETABS

Chetan P. Agrawal* , Amey R. Khedikar**

* Lecturer, Department of Civil Engineering, NIT Polytechnic, Nagpur, Maharashtra, India.

** Head, Department of Civil Engineering, Tulsiramji Gaikwad Patil College of Engineering and Technology, Nagpur, Maharashtra, India.

Agrawal, C. P., Khedikar, A. R. (2018). Linear and Nonlinear Dynamic Analysis of RC Structure for Various Plan Configurations Using ETABS. i-manager's Journal on Structural Engineering, 7(2), 70-76. https://doi.org/10.26634/jste.7.2.14287

Abstract

The principle objective of this paper is to study the structural behavior of High-Rise RC structure for different plan configurations, such as rectangular building along with Plus, C, L, and H-shape in accordance with the seismic provisions suggested in IS: 1893-2002 using ETABS. The analysis involves load calculation manually and analyzing the whole structure on the ETABS 9.7.1 version for dynamic analysis, i.e. Response Spectrum Analysis and Time History Analysis confirming to Indian Standard Code of Practice. For time history analysis, past earthquake ground motion record is taken to study response of all the structures. Analysis is carried out for seismic zone IV by taking medium soil condition. After the analysis, various responses like maximum storey displacement, maximum storey drift, storey shear, and maximum overturning moment are plotted so as to match the results of the linear and non-linear dynamic analysis.

References

[1]. Agrawal, C., & Khedikar, A. R. (2018). Dynamic Analysis of High Rise RC Structure Using ETABS for Different Plan Configurations. International Journal of Research, 5(12), 5729-5733.

[2]. Agrawal, C. P., & Khedikar, A. R. (2018b). Seismic analysis of high rise rc structure with different plan configurations. International Journal of Research, 5(13), 78-84.

[3]. Alavi, A., & Rao, P. S. (2013). Effect of plan irregular RC buildings in high seismic zone. Australian Journal of Basic and Applied Sciences, 7(13), 1-6.

[4]. Ashvin, G. S., Agrawal, D. G., & Pande, A. M. (2015). Effect of irregularities in buildings and their consequences. International Journal of Modern Trends in Engineering and Research, 2(4), 14-21.

[5]. Bureau of Indian Standards. (2002). Criteria for Earthquake Resistant Design of Structures, Part I General Provisions and Buildings (Fifth Revision) (IS 1893: 2002 (Part- I)). New Delhi, India.

[6]. Bureau of Indian Standards. (1987). Code of Practice for Design Loads (Other Than Earthquake) for Buildings and Structures, Part 1 Dead Loads (Second Revision) (IS 875 - 1987 (Part 1)). New Delhi, India.

[7]. Bureau of Indian Standards. (1987). Code of Practice for Design Loads (Other Than Earthquake) for Buildings and Structures, Part 2 Imposed Loads (Second Revision) (IS 875 - 1987 (Part 2)). New Delhi, India.

[8]. Chopra, A. K. (2012). Dynamics of Structures: Theory and Applications to Earthquake Engineering, Fourth Edition. Prentice Hall.

[9]. Duggal, S. K. (2011). Earthquake Resistant Design of Structures, Sixth Edition. New Delhi: Oxford University Press.

[10]. Mishra, S., Dhuri, S., Chakrabarti, M. A., & Sangle, K. K. (2012). Study of Various Configurations in High-Rise Structures. 15 WCEE.

[11]. Nair, K.G., & Akshara S. P. (2017). Seismic analysis of reinforced concrete buildings - A review. International Research Journal of Engineering and Technology (IRJET), 4(2), 165-169.

[12]. Philip, A., & Elavenil, S. (2017). Seismic analysis of high rise buildings with plan irregularity. International Journal of Civil Engineering and Technology (IJCIET), 8(4), 1365-1375.

[13]. Poonam, A. K., & Gupta, A. K. (2012). Study of response of structurally irregular building frames to seismic excitations. International Journal of Civil, Structural, Environmental and Infrastructure Engineering Research and Development, 2(2), 25-31.

[14]. Stefano, M. D, & Pintucchi, B. (2008). A review of research on seismic behaviour of irregular building structures since 2002. Bulletin of Earthquake Engineering, 6(2), 285-308.

i-manager's Journal on Structural Engineering (JSTE)

Current Issue Vol. 12 Issue 3

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Volume 7 Issue 2 June - August 2018

Arbaj Khan Demrot* , Rashmi Sakalle**, John W.***

* M.Tech Scholar, Department of Structural Engineering, TRUBA Institute of Engineering and Information Technology, Bhopal, Madhya Pradesh, India. **-*** Associate Professor, Department of Civil Engineering, TRUBA Institute of Engineering and Information Technology, Bhopal, Madhya Pradesh, India.

Demrot, A. K., Sakalle, R., Tiwari, N. (2018). Time History Analysis of Elevated Circular Tank whose Column is Stiffened by using Wing Slab, i-manager's Journal on Structural Engineering, 7(2), 1-11. https://doi.org/10.26634/jste.7.2.14485

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N. Rathinam* , B. Prabu**

* Assistant Professor, Department of Mechanical Engineering, Pondicherry Engineering College, Puducherry, India. ** Professor, Department of Mechanical Engineering, Pondicherry Engineering College, Puducherry, India.

Rathinam, N., Prabu, B. (2018). Numerical Study on Effect of Dent Dimensions on Buckling Resistance of Thin Stainless Steel Cylindrical Shell Under Lateral Pressure. i-manager's Journal on Structural Engineering, 7(2), 12-26. https://doi.org/10.26634/jste.7.2.14484

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Mudi Charitha* , P. R. Maiti**, R.Natarajan***

Charitha, M., Maiti, P. R, Sashidhar, C. (2018). Experimental and Numerical Analysis of Structures Under Blast Loading – A Review, i-manager's Journal on Structural Engineering, 7(2), 27-36. https://doi.org/10.26634/jste.7.2.14041

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M. V. Patil* , Y. D. Patil**

* Research Scholar, Department of Applied Mechanics, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, India. ** Assistant Professor, Department of Applied Mechanics, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, India.

Patil, M. V., Patil, Y. D. (2018). Effects of Copper Slag and Stone Dust in Concrete, i-manager's Journal on Structural Engineering, 7(2), 37-42. https://doi.org/10.26634/jste.7.2.14483

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Ravikant Singh* , Vinay Kumar Singh**

* M.Tech Graduate, Department of Civil Engineering, MMM University of Technology, Gorakhpur, Uttar Pradesh, India. ** Assistant Professor, Department of Civil Engineering, MMM University of Technology, Gorakhpur, Uttar Pradesh, India.

Singh, R., Singh, V. K., (2018). Fragility Curves For Reinforced Concrete Structural Walls, i-manager's Journal on Structural Engineering, 7(2), 43-49. https://doi.org/10.26634/jste.7.2.14039

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M. Hari Sankar* , G. Hemalatha**, D. Tensing***, S. Sundar Manoharan****

Sankar, M. H., Hemalatha, G., Tensing, D., Manoharan, S. S., (2018). Innovative Smart Material Magneto Rheological (MR) Damper for Building Structures Using Semi-Active Vibration Control. i-manager's Journal on Structural Engineering, 7(2), 50-56. https://doi.org/10.26634/jste.7.2.14265

Abstract

References

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D. Naveen Kumar* , Cheryl**

* PG Scholar, Department of Structural Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, Telangana, India. ** Dean and Professor, Department of Civil Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, Telangana, India.

Kumar, D. N., Ramujee, K. (2018). Investigation on Relationship between Compressive and Flexural Strength of Binary Blended Hybrid Fiber Reinforced Geopolymer Concrete, i-manager's Journal on Structural Engineering, 7(2), 57-62. https://doi.org/10.26634/jste.7.2.14487

Abstract

References

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Durga Shankar* , Wanda**

* M.Tech Graduate, Madan Mohan Malaviya University of Technology, Gorakhpur, Uttar Pradesh, India. ** Assistant Professor, Madan Mohan Malaviya University of Technology, Gorakhpur, Uttar Pradesh, India.

Shankar, D., Kumar , V. (2018). A Comparative Study on Experimental and Theoretical Bearing Capacity of Ring Footings, i-manager's Journal on Structural Engineering, 7(2), 63-69. https://doi.org/10.26634/jste.7.2.14486

Abstract

References

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Chetan P. Agrawal* , Amey R. Khedikar**

* Lecturer, Department of Civil Engineering, NIT Polytechnic, Nagpur, Maharashtra, India. ** Head, Department of Civil Engineering, Tulsiramji Gaikwad Patil College of Engineering and Technology, Nagpur, Maharashtra, India.

Agrawal, C. P., Khedikar, A. R. (2018). Linear and Nonlinear Dynamic Analysis of RC Structure for Various Plan Configurations Using ETABS. i-manager's Journal on Structural Engineering, 7(2), 70-76. https://doi.org/10.26634/jste.7.2.14287

Abstract

References

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Arbaj Khan Demrot* , Rashmi Sakalle, John W.*

* M.Tech Scholar, Department of Structural Engineering, TRUBA Institute of Engineering and Information Technology, Bhopal, Madhya Pradesh, India.

-* Associate Professor, Department of Civil Engineering, TRUBA Institute of Engineering and Information Technology, Bhopal, Madhya Pradesh, India.

* Assistant Professor, Department of Mechanical Engineering, Pondicherry Engineering College, Puducherry, India.

** Professor, Department of Mechanical Engineering, Pondicherry Engineering College, Puducherry, India.

Mudi Charitha* , P. R. Maiti, R.Natarajan*

* Research Scholar, Department of Applied Mechanics, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, India.

** Assistant Professor, Department of Applied Mechanics, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, India.

* M.Tech Graduate, Department of Civil Engineering, MMM University of Technology, Gorakhpur, Uttar Pradesh, India.

** Assistant Professor, Department of Civil Engineering, MMM University of Technology, Gorakhpur, Uttar Pradesh, India.

M. Hari Sankar* , G. Hemalatha, D. Tensing*, S. Sundar Manoharan****

* PG Scholar, Department of Structural Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, Telangana, India.

** Dean and Professor, Department of Civil Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, Telangana, India.

* M.Tech Graduate, Madan Mohan Malaviya University of Technology, Gorakhpur, Uttar Pradesh, India.

** Assistant Professor, Madan Mohan Malaviya University of Technology, Gorakhpur, Uttar Pradesh, India.

* Lecturer, Department of Civil Engineering, NIT Polytechnic, Nagpur, Maharashtra, India.

** Head, Department of Civil Engineering, Tulsiramji Gaikwad Patil College of Engineering and Technology, Nagpur, Maharashtra, India.