Experimental analysis of axially loaded CFST columns over RC column
In recent years, the use of Concrete Filled Steel Tube columns is increased significantly in medium-rise to high-rise buildings, therefore to understand the deformation characteristics of Concrete Filled Steel Tube columns critically Over Reinforced Concrete Columns, Extended Three Dimensional Building System ETABS Software is used. This paper focuses on a comparative study of Concrete Filled Steel Tube columns over Reinforced Concrete Columns under axial compressive loading. Two kinds of columns, including CFST column with varying size and conventional column were tested. The experimental results showed that the CFST column has a higher bearing capacity, more effective plastic behavior, and greater stiffness.
Published by: Abhishek P. Hedgire, Nikhil. A. Maske, Dr. Nagesh L. Shelke
Author: Abhishek P. Hedgire
Paper ID: V6I3-1521
Paper Status: published
Published: June 16, 2020
Performance analysis of high wing for a micro class unmanned aerial vehicle
The paper deals with the design and performance analysis of high wing of a Micro Class Unmanned Aerial Vehicle. The wing design involves its initial considerations like and weight of the aircraft, planform selection, selection of airfoil, area of the wing and wing loading characteristics. The design is done based on the calculated values and performance analysis is done to show airfoil characteristics, and performance of the wing with the help of XFLR5 software. The objective of this project is to compare the results obtained for different wing planforms, different angle of attack over a range of speeds. From the results we will conclude which wing configuration meets the payload lifting goals. Selection of wing configuration is an iterative process. The iterative process allows us to accommodate other design criteria such as catering storage, systems installations (high lift devices, attachment of motors and the main undercarriage) which may or may not be directly related to the goals of the mission. The result of iterative optimization is typically a compromise in configuration which best satisfies the overall needs of the mission. The final decision upon configuration will represent a compromise based on design priorities
Published by: Akshay Rajesh Prasad, Vivek Sharma
Author: Akshay Rajesh Prasad
Paper ID: V6I3-1490
Paper Status: published
Published: June 16, 2020
Sexual harassment at workplace
In this era of patriarchal society, where everyone deem to have adopt western culture could not change their thinking against goddess of the nation which is women. Nowadays crimes have been increased at a very high rate. Crimes in the nation have been increasing at a very high rate but crimes against women have taken a major boom. One of the major crimes is sexual harassment at workplace against women. Women are being suppressed from the very beginning and the men are used to take advantage of this and harass women and make them feel humiliated. Sexual Harassment At Workplace against women knocked doors of legal system in the case of Vishaka V/S State Of Rajasthan in the year 1997 where honorable Supreme Court gave a set of guidelines for the cases dealing with sexual harassment at workplace. Even after having guidelines and acts for the same the men take advantage of loopholes in the legal system and does not leave any table unturned in order to suppress women and make them feel insecure and humiliated. What is sexual harassment? Sexual harassment is a sexual behavior against the wish either directly or by implication through physical contact , a demand or force for sexual pleasure, showing pornography or implicating sexual action on exchange of any demand through force and any act which is humiliating or sexual in conduct either spoken or written or through actions. “Sexual Harassment at workplace is suppressing women or making them feel humiliated or insulting them or making them feel insecure or sexually harassing them at the workplace.” The definition still remains subjective and depends on how the judges interpret the citation put before them. It can make a person feel humiliated or offended. It can be verbal, physical or written. It has existed in the past and has become a source of discussion. A job or educational performance is conditioned on sexual pleasure. “Hostile work or educational environments can be created by actions such as addressing women in crude or objectifying terms, posting pornographic images in the office and by making derogatory or demeaning or humiliating statements about women like anti-female jokes.” Even after adopting a modern society the mind set of people will never change with respect to a woman. Many women feel unsafe even at workplace where good environment is a major clause for profit of the organization. Even if women complain about it to anyone specially illiterate women they are also being suppressed and are threatened or tortured if they raise their voice against men of the nation. Is this even about gender inequality that men of the nation can do whatever they want even without having any fear of the law? Even after adopting all the values given by the families where does the ethics and respect of men go toward women? Why they think they can do anything to women and can get safe without being punished? Is this because of women not being educated enough or small girls who are sent to big houses for non-employed works? Or is sexual harassment at heights due to illiterate and unemployed population of the nation? Even after having laws enforced or act for prevention of sexual harassment at workplace against women it is practiced almost in every one of 5 workplaces in developing nation like India. The troubles women has to face at workplace even gives a decline in efficiency and effectiveness of the women that is being humiliated and other women that are even working. Patriarchy has gone into heights at such a rate where men have made joke of women and even laws of the nation. I would like to address all such questions in my research paper and answer all these questions as we further.
Published by: Snigdha Singhi
Author: Snigdha Singhi
Paper ID: V6I3-1533
Paper Status: published
Published: June 16, 2020
Retrofitting of concrete member subjected to fire
This paper presents an experimental investigation for evaluating the effects of fire exposure on the properties of structural elements retrofitted by fiber-reinforced polymers (FRPs). Mechanical properties of FRP-strengthened reinforced concrete (RC) members, protected with secondary insulation, were investigated, before and after (residual) direct fire exposure. Direct fire contact resulted in a reduction in the capacity of 9% to 20% for FRP-strengthened RC beams and 15% to 34% for FRP-strengthened RC columns. Furthermore, a similitude analysis was developed for a heat transfer relationship between full-scale and small-scale specimens, allowing a one-fourth exposure time reduction for the latter. Results from the experimental investigations demonstrated the benefits of employing secondary fire protection to FRP-strengthened structures, despite the glass transition temperature being exceeded in the early stages of the elevated-temperature exposure. Therefore, it is suggested that fire protection is necessary for an FRP-strengthened structure to retain integrity throughout the duration of the fire exposure and on return to ambient temperature. Retrofitting RC structures with adequate fire resistance by contributing to the missing information for fire protection requirements not available in codes of p. Apart from the test data, relations defining the variation of strength and elastic modulus of CFRP and GFRP with temperature are available in the literature. These relations are proposed by [8][9][10][11]33,35,39,40]; for FRP. The majority of these relations define the temperature-dependent variation in strength properties of CFRP, while relatively few relations define the variation in strength properties of GFRP. Additionally, most of these relations are in form of semi-empirical equations and express the variation of strength and stiffness of FRP up to 800 � C, whereas some relations are in the form of reduction factors providing percentage degradation in ambient temperature strength and stiffness of FRP at different temperature level. Saafi [40] proposed linear/bilinear relations for expressing degradation of strength and stiffness of GFRP and BFRP at elevated temperatures. These relations are based on the tests carried out on GFRP and BFRP rebars reported by Blontrock et al.
Published by: Sipendra Kumar Goit, Sanjeevkiran M., Sangmeshwar, Shivaraj R., Dr. V. Ramesh
Author: Sipendra Kumar Goit
Paper ID: V6I3-1507
Paper Status: published
Published: June 15, 2020
Investigation into some of the engineering properties of soil in Damot Gale district
Investigation of the sub-surface condition is used for the effective design of the structural elements. It is also very crucial to obtain information on the type, characteristics, and distributions of soil and rock underlying a site for proposed structures. I investigate some of the engineering properties of soils collecting 20 disturbed and 10 undisturbed soil samples from 10 different test pits at the average depth of 1.5m to 3m and laboratory tests conducted. The natural moisture content of soil ranges from 24% - 44.47% and bulk unit weight range from 16.4 to 19.7 kN/m3. The specific gravity of soil varies from 2.57 to 2.84 and the particle size analysis showed that the dominant proportions of soils in the study area are the clay. Consistency limit test results in the research area showed the liquid limit ranges from 46 to 73%, plastic limit ranging from 13 to 38%, and plasticity index ranging from 13 to 38 %. The unconfined compressive strength of the soils in the study area ranges from 80 -215kN/m2 and undrained shear strength range from 40 – 107.5 kN/m2. Finally, a one-dimensional consolidation test was done.
Published by: Tsegaye Matalo
Author: Tsegaye Matalo
Paper ID: V6I3-1345
Paper Status: published
Published: June 15, 2020
Impact assessment of land use land cover change on sediment yield using SWAT Model
Quantifying the impacts of land use change and land cover practices on the hydrological response of a watershed has been an area of interest for the hydrologists in recent years as this information could serve as a basis for developing sound watershed management interventions. This thesis aims at evaluating the effects of land use land cover change on sediment yield using SWAT model simulation in Gadarwara watershed located in Narmada Basin. The degree and type of land cover influences the rate of infiltration, runoff and total sediment loads transported from a watershed. It often results in significant degradation of land resources such as loss of soil by erosion, nutrient leaching and organic matter depletion. However very few studies in India, have used the physically based hydrological models along with the land use land cover change conditions. Hence in this current work SWAT model has been used to assess the impact of land use land cover changes on monthly sediment of Narmada River Basin. The SWAT model has been calibrated and validated against the monthly streamflow for the gauging station of Gadarwara, situated along the Shakkar River. The results depict that SWAT model usually performs well in simulating runoff according to Nash-Sutcliffe efficiency (NSE), Coefficient of determination (R2) and Percentage bias (PBIAS) values. For stream flow the NSE, R2 and PBIAS values were 0.86, 0.89, 12.2 during calibration period and 0.83, 0.87 and 14.5 during validation period respectively. For sediment the efficiency decreased due to less availability of data and the NSE, R2 and PBIAS values were 0.66, 0.68 and -10.9 during calibration period and 0.65, 0.67 and -5 during validation period respectively. The results of the study indicated that increase in forested areas result in decreasing sediment yield Agriculture land contributes mainly in sediment yield hence reduction in agriculture land leads in reduction of sediment yield and increase in agriculture land results in increase of sediment yield.
Published by: Dhananjaya Singh Chauhan, A. K. Thawait
Author: Dhananjaya Singh Chauhan
Paper ID: V6I3-1514
Paper Status: published
Published: June 15, 2020
