The Nine Leadership Styles The Following Styles - 1195 Words

Upon review of the nine leadership styles the following styles: ______ mostly closely mirror my personal perspective. Each of these leadership philosophies has its own distinct advantages and disadvantages. Moreover, each is congruent with what I believe is necessary to craft the ideal leader. Through the combined usage of these styles I strive to emulate the wholesomeness of leadership as I am continuously exposed to the nuances experienced by leaders. Furthermore, they are in unison with the most effective leadership philosophies of some of the world’s most notable leaders. Although, I find that the styles alone are not perfect and are most effective when merged. Of the three styles I’ve chosen as anchors to creating a distinctive†¦show more content†¦It corresponds closely to what I envision a successful leader. Author, Bernard M. Bass, further developed Burn’s and Weber’s concept of Transformational Leadership. According to Bass in his 1985 work titled, Leadership and Performance Beyond Expectations, in order to be a Transformational Leader one must possess the following eight qualities. Is a model of integrity and fairness. Sets clear goals. Has high expectations. Encourages others. Provides support and recognition. Stirs the emotions of people. Gets people to look beyond their self-interest. Inspires people to reach for the improbable. These qualities are fundamental to be considered a Transformational Leader.. Yet these eight characteristics are the cornerstone of impacting the building blocks required to consummate oneself as an effective leader. Undoubtedly, while the brief list above is sufficient, there are more qualities necessary to come full circle. As previously mentioned there are other qualities one must possess to become an effective leader. ? In addition to the eight qualities listed above it is imperative that as a leader has or seeks to fulfill a vision. Political sociologists, Max Weber and James MacGregor Burns had a few things in common as they each separately theorized the possibility that many leaders could also be identified as visionaries. According to ______, â€Å"These visionary leaders possess a driving sense of purpose and confidence in their ability

Invisible Man By Ralph Ellison - 909 Words

Invisible Man by Ralph Ellison is a novel which embodies the universal theme of self-discovery, of the search to figure out who one truly is in life which we all are embarked upon. Throughout the text, the narrator is constantly wondering about who he really is, and evaluating the different identities which he assumes for himself. He progresses from being a hopeful student with a bright future to being just another poor black laborer in New Your City to being a fairly well off spokesperson for a powerful political group, and ultimately to being the invisible man which he eventually realizes that he has always been. The deepest irony in this text is that for a significant portion of the story, the narrator is unaware of his own invisibility, in believing that others can see him, he is essentially invisible to himself. Only through a long and arduous journey of self-discovery which is fraught with constant and unexpected tragedy and loss does he realize the truth, that his perceptions of himself and of how others perceived him had been backwards his entire life. The story opens with the narrator participating in a battle royal prior to delivering a speech on humility, and on the progress of the Black people. These are the days during which he is still a hopeful scholar, defining himself as a potential Booker T. Washington. At this point he is living the life that others have told him that he should live, and defines himself as he believes he is seen through theirShow MoreRelatedInvisible Man By Ralph Ellison1366 Words   |  6 Pagesfighter left standing, amidst unbridled carnage. The titular narrator of Ralph Ellison s novel Invisible Man, is no stranger to those experiences. In the beginning, he is forced to fight several other black boxers for the amusement of many heckling, white spectators. Through the imaginative use of objects, symbols, allusions, and the actions, thoughts, and purposes of the spectators, pugilists and risquà © entertainment, Ellison se eks to express a powerful image of American race relations and womenRead MoreInvisible, Invisible Man, By Ralph Ellison1994 Words   |  8 PagesInvisible Race and Gender in Invisible Man, by Ralph Ellison In Invisible Man by Ralph Ellison, the unnamed narrator shows us through the use motifs and symbols how racism and sexism negatively affect the social class and individual identity of the oppressed people. Throughout the novel, the African American narrator tells us the story of his journey to find success in life which is sabotaged by the white-dominated society in which he lives in. Along his journey, we are also shown how the patriarchyRead MoreThe Invisible Man By Ralph Ellison Essay2164 Words   |  9 Pagestrying to rebel against the status quo. Protest literature emerged from the Harlem Renaissance in the 1920’s to 1930’s. Protest literature is used to address real socio-political issues and express objections against them. In his novel, The Invisible Man, Ralph Ellison exposes the racism in society by focusing on the culture, in regards to the expected assimilation of African Americans and how the time period largely influenced the mistreatment of the African A merican population. He also uses symbolsRead MoreInvisible Man By Ralph Ellison1246 Words   |  5 Pagesauthor of Invisible Man, Ralph Ellison, was born March 1st, 1914, and died April 16, 1994. He was born in Oklahoma City and named after Ralph Waldo Emerson, a famous journalist and poet. When Ellison was 3, his father died of a work-related accident, leaving his mother to care for him and his younger brother. As a young boy, he always wanted to major in music, and he went to Tuskegee University to become a composer and performer of music. The summer before his senior year in college, Ellison went toRead MoreInvisible Man By Ralph Ellison1277 Words   |  6 PagesInvisible Man, by Ralph Ellison, is a story about a young African American man whose color renders him invisible. The theme of racism as a hurdle to individual identity is present throughout the story in a variety of examples. From the beginning of the novel the theme of identity is evident as the narrator states, †Å"All my life I had been looking for something, and everywhere I turned someone tried to tell me what I was† (Ellison, p. 1254). In the midst of living in a racist American society the speakersRead MoreThe Invisible Man By Ralph Ellison3051 Words   |  13 Pagesportrayed through the narrator’s, the invisible man, journey through life. The problems with society are foreshadowed by the racism and the symbols of the color white presented in the paint plant. â€Å"The Invisible Man† by Ralph Ellison depicts the African Americans struggle to be viewed as an equal member of society through the narrators struggles through life to discover his individuality or place in society while the white man or the community conspires to â€Å"keep the black man down†. The story follows theRead MoreThe Invisible Man By Ralph Ellison977 Words   |  4 PagesBook Review: Invisible Man Invisible Man is an American Literature novel published by Ralph Ellison in 1952. The novel traces the experiences of a young college black man growing up in Harlem, New York. Attempting to succeed in a predominantly white society, the narrator encounters shocks and disillusionments from being expelled from college to hiding in an underground hole to protect himself from the people above. He lives a repressed life as an â€Å"Invisible Man† for he believes that society ignoresRead MoreInvisible Man By Ralph Ellison1032 Words   |  5 Pageslike modern society some people leads, and others will follow. Subjects will conditionally generate their own ideas and realize these ideas rather than just be assigned tasks that question their beliefs. The author Ralph Ellison illustrates it best. Ellison’s realistic fiction Invisible Man perpetuates the manifestation of manipulation over the minorities in this society. As the narrator embraces every identity he has been given, h e starts to become more independent, and a leader in his community. Read MoreInvisible Man By Ralph Ellison1481 Words   |  6 PagesInvisible Man is a novel by Ralph Ellison, published in 1952. It addresses many of the social and intellectual issues facing African-Americans in the early twentieth century. This includes black nationalism, the relationship between black identity and Marxism, and the reformist racial policies of Booker T. Washington, as well as issues of individuality and personal identity. The grandson of slaves, Ralph Ellison was born in 1914 in Oklahoma City, Oklahoma, and was raised in Tulsa, Oklahoma. HisRead MoreThe Invisible Man By Ralph Ellison917 Words   |  4 PagesRalph Ellison’s Invisible Man is a story about a young African American man who struggles to break free from the black stereotype that white society has forced upon him. As Ellison’s views on the detrimental effects of stereotyping minorities become apparent throughout his nov el, some readers would argue that his depictions of female characters seem to be slightly hypocritical—but in actuality, the narrator’s encounters with the female characters ultimately help him accept his invisibility, develop

Seismic Analysis Free Essays

EVALUATION OF SEPERATION GAP BETWEEN MULTISTOREY BUILDINGS SUBJECTED TO DYNAMIC SEISMIC LOAD Dr. G Sridevi1*(0000-0002-5922-3132), Mr. Umesh Biradar 2(0000-0003-0087-9433), Mr. We will write a custom essay sample on Seismic Analysis or any similar topic only for you Order Now G Sudarshan 3(0000-0002-5129-5465) and , Mr. A Shivaraj 4(0000-0002-7437-1256) 1234 B V Raju Institute of Technology, Narsapur, India Abstract : When structures are under earthquake forces, adjacent structure may collide with each other due to different dynamic characteristics. When building vibrates out of phase and separated gap between buildings are not sufficient to accommodate their relative motions, this can cause severe damage to the structures and it is known as seismic pounding. Most of the time it is not possible to maintain sufficient pounding gap between adjacent buildings. Present work evaluate the minimum separation gap required between high-rise building models considered. Two high-rise building of 10 storey and 15 storey are modelled and analysed for dynamic time history analysis for the EI Centro ground motions and minimum pounding gap between buildings has been discussed.Keywords : Seismic Pounding, RC Building, ETABS, Time History Analysis. INTRODUCTION Because of expanding population and land esteems, structures are being built to close to each other. During a quake it is expected that, they will pound against each other. This repeated collision activity is referred as seismic pounding. Pounding of structures could have cause severe damage, as neighbouring structures with various dynamic attributes vibrate out of phase and there is inadequate separation gap to accommodate the relative movements of adjacent structures. This highly congested construction system in the metropolitan cities is the major concern for the seismic pounding. The most simple and viable method for controlling the issue and diminish the harm caused by it is to give enough separation gap between the adjacent structures. LITERATURE Shehata (2006) examined structure pounding response and proper seismic hazard dissipation technique. Three categories of recorded earthquake excitation are used for input. The effect of impact is studied using linear and nonlinear contact force model for different separation distances and compared with nominal model without pounding consideration. And it is concluded that, an increasing gap width is likely to be effective to minimize the effect of seismic pounding. Mizam Dogan et.al (2009) carried stress examinations on outline models for various effect focuses and investigation on pounding. It is concluded that pounding forces are not totally absorbable on account of their high esteems but rather their consequences for structure can be decreased by setting versatile materials between adjacent structures or by strengthening basic frameworks.Pushover is a static nonlinear analysis method to estimate seismic structural deformations. It gives force displacement relationship of a structure or structural element. Horizontal load is applied in a specified pattern in increments and for a given applied shear force, associated displacement is found until it reaches its maximum capacity of deformation. As the storey drift increases the columns are subjected to additional moment leading to the failure of the structure. A B Kawade et.al studied the minimum gap to be provided between the adjacent buildings using push over analysis. Response spectrum analysis was carried out by taking the data of EI Centro earthquake on different models. The results indicated that the acceleration and shear force produced because of pounding varies with the storey height and peak storey drift depends on the ground excitation characteristics. The effect of pounding is observed to be more predominate when floor levels of adjacent building are different constructing separate buildings with equal floor heights is one of viable solutions to prevent seismic structural pounding. It was also observed that the separation distance to be maintained increases with the increase in peak ground acceleration values.Jeng-Hsiang Lin et.al (2002) investigated the seismic pounding probability of buildings in the Taipei metropolitan area. Detailed procedures of the analytical method are presented. And concludes that pounding probability of adjacent buildings is found to be significantly affected by the natural period of individual buildings and the period ratio of the adjacent buildings. Due to the lack of proper treatment of the vibration phases of adjacent buildings, it is found that the method used in the current Taiwan Building Code (TBC’97) provides poor estimates for the required building separation distance and produces a non-uniform risk for all the cases investigated in this study. MOTIVATION AND OBJECTIVES OF STUDY To Study the Dynamic Behaviour of Tall Structures.To Evaluate Seismic Pounding Effect of Adjacent Buildings with Consideration of Vertical Geometrical Irregularity.To Study the Influence of Shear Walls on Seismic Pounding Effect. MODEL DESCRIPTION In Present Study Total 3 Models have been Modelled to Evaluate Dynamic Behaviour of High Rise Buildings by Considering Vertical Geometrical Irregularities.Model 1 : A Plan which consists adjacent multi storey buildings one is 10 Storey and the other one is 15 Storey with a separation of 100mm with Masonry infill walls.Model 2 : A Plan which consists adjacent multi storey buildings one is 10 Storey and the other one is 15 Storey with a separation of 100mm in this particular model all infill walls are modelled and designed as shear walls.-47625012700Fig 1 : Plan View of the Buildings1219200176530Fig 2 : Isometric View of ETABS Model1104900191770Fig 3 : Elevation of ETABS Model METHODOLOGY The principle objective is to evaluate the effects of seismic pounding between two closely spaced multi-storey buildings, to understand the minimum seismic gap between the buildings, modelling is done to study the response of buildings under pounding during EI Centro earthquake.In order to observe pounding effect between adjacent buildings, two RC buildings of 10 and 15 storey are considered. Both buildings have been modelled and analysed in ETABS 2015 software. Based on the analysis results the clear separation distance is provided. all 3 models have been analysed for nonlinear time history analysis to study dynamic behaviour of buildings. The output results were obtained.In Time History Analysis the ground motion records are given as input. The time history analysis has the ability to perform linear as well as non linear analysis . The ability of this method to account for bidirectional effects by applying three components of ground motion helps in predicting the response more precisely. In a Linear analysis, it is assumed that the displacement of whole structure does not exceed elastic limit under the application of design forces. when the structure deforms more than elastic limit, non linearity of the structure in terms of geometry or material are to be considered. Bureau of Indian Standards clearly gives in its code IS 4326, that a Separation distance is to be provided between buildings to avoid collision during an earthquake. The IS code provisions are mentioned in following Table.Fig 4 : Gap Width for Adjoining Structure as per IS 4326 ( Table 1 )Table 1 : Seismic ParametersSoil Type MediumResponse Reduction Factor, R 5Importance Factor, I 1.5Zone IVTable 2 : Material PropertiesConcrete cube strength, fck30 N/mm2 (M30)Characteristics strength of reinforcing steel, fy415N/mm2(Fe 415)Modulus of elasticity of concrete, E 29.5 kN/mm2Unit weight of concrete 25 kN/m3 Table 3 : Sectional PropertiesName of the Element Size in mmBeam 1 300 * 400Beam 2 300 * 500Beam 3 350 * 600Column 1 300 * 300Column 2 300 * 400Column 3 300 * 500Column 4 300 * 600Column 5 300 * 700Slabs 125Exterior walls,w1 300Interior walls,w2 230 6. RESULTS AND DISCUSSIONS Dynamic Time History Analysis of considered models have been performed in ETABS Software. EI Centro Ground Motions were considered as Input Data for Analysis. Effect of Pounding is studied with a reference to storey displacement. The Storey Height Vs Storey Displacement graph has been plotted to understand the dynamic behaviour of Structure.Fig 2 : Storey Displacement Curve for Model 1Fig 2 : Storey Displacement Curve for Model 2Fig 3 : Storey Displacement Curve for Model 37. CONCLUSION :Stiffness of building has got a great influence on displacements in respective directions. In Model – I separation gap between adjacent buildings are 100 mm. Displacement observed was 509.883 mm in X direction and 31.881 mm in Y direction. When masonry wall are replaced with shear wall, lateral displacement has reduced in considerable amount to 36.74 % and 80.8 % in X and Y direction respectively.Effect of pounding can be reduced by providing safe separation gap. By the result of Model – I we can conclude that minimum safe separation gap between building is 540 mm.Stiffness of building can be enhanced by adopting shear wall to reduce the pounding effect REFERENCES A.B. Kawade , Mr. Abhijeet A. Sahane â€Å"Seismic pounding effect in building† Amrutvahini college of engineering, Sangamner.Alireza M.Goltabar.R, Shamstabar Kami, A.Ebadi, (2008) â€Å"Analyzing the effective parameters in Pounding Phenomenon between Adjacent Structure due to Earthquake†, The 14th World Conference on Earthquake Engineering, pp. 12-17, Beijing, China.Diego Lopez Garcia, (2004) â€Å"Separation between Adjacent Nonlinear Structures for Prevention of Seismic Pounding†, 13th World Conference on Earthquake Engineering Vancouver, B.C., Canada, Paper No. 478.Jeng-Hsiang Lin, Cheng-Chiang Weng, (2002) â€Å"A Study on Seismic Pounding Probability of Buildings In Taipei Metropolitan Area†, Journal of the Chinese Institute of Engineers, Vol. 25, No. 2, pp. 123-135.K.Kasai, V.Jeng, P.C.Patel ; J.A.Munshi â€Å"Seismic Pounding Effects – Survey and Analysis† Illinois Institute of Technology, Chicago,USA.Mizam Dogan and Ayten Gunaydin, (2009) â€Å"Pounding of Adjacent RC Buildings During Seismic Loads†, Journal of Engineering and Architecture, Vol: XXII, No: 1.Raja Rizwan Hussain et.al. (2013) â€Å"Non-linear FEM Analysis of seismic Induced Pounding between Neighbouring Multi-Storey Structures†, Latin American Journal of solids and structures, pp. 921-939.Shehata E. Abdel Raheem, (2006) â€Å"Seismic Pounding between Adjacent Building Structures†, Electronic Journal of Structural Engineering, Vol. 6, pp.66-74.Susendar Muthukumar and Reginald DesRoches, (2006) â€Å"A Hertz contact model with non-linear damping for pounding simulation†, Earthquake Engineering and Structural Dynamics, Vol.35, pp.811-828.Weng Dagen, Li Tao Bashar Alfarah, Fransisco Lopez-Almansa (2017) â€Å"Non linear time history analysis of a base isolated RC building in shanghai founded on soft soil† Tongji University, Technical university of catalonia, paper No. 2634. How to cite Seismic Analysis, Papers