Sunday, November 3, 2019
Applying for Entrance at Oxford University Essay
Applying for Entrance at Oxford University - Essay Example Relative to the foregoing, I have had the pleasure of giving Mr., Zhigzhitov academic instructions pertinent to the Comparable Politics Course while studying in the Political Department of Moscow State University; where he constantly deferred to me for scientific consultations on different problems. Moreover, he passed all his examinations within the given curriculum and attained no grade mark lower than A. Sergey has also been recognized by the University for his achievements since he received a gold medal and red diploma that was awarded by Viktor Sadovnichiy - rector of Lomonosov Moscow State University (only distinguished students are awarded a medal by the rector). Aside from his impeccable academic achievements, Sergeyââ¬â¢s extracurricular activities also put him ahead of his peers. In this arena, he was recognized for actively participating in the ââ¬Å"Electoral Processes and Social Cleavages in Regions of Russiaâ⬠ââ¬â a project that was organized by A. Ahremenko, a Doctor of Political Science and a political specialist analyst in Russia. In addition, he made a remarkable accomplishment by winning the first prize in a nationwide scientific competition, which was organized by both Moscow State University and the Fund of Perspective Researchers ââ¬Å"Bastionâ⬠. Again Sergeyââ¬â¢s scientific intellect manifested itself through the ten (10) scientific published works he has done in specialized editions which are considered quite a feat for a student. Having confidence in Sergey Zhigzhitovââ¬â¢s intellectual capabilities, the Political Science Department of Moscow State University allowed him to engage in practical teaching activities. H
Friday, November 1, 2019
The Filter case study Example | Topics and Well Written Essays - 750 words
The Filter - Case Study Example It is faced with the decision of opting new arenas of application of its technology, apart from the currently prevailing entertainment and media areas to increase the profitability of the company. As opposed to the limited options of growth available in the currently selected media and entertainment areas, the company intends to expand its operation by covering other areas that may utilize its superior recommendation technology. Various factors are involved in the decision regarding evolution of the company to increase its profitability. The fact that the technology owned by the company is of considerable importance for various other businesses, makes it possible for this company to adopt an approach where business-to-business model is feasible and profitable. It appears that the companyââ¬â¢s move from adopting a direct customer approach to the business-to-business approach was a test-flight designed to test the feasibility of the business. Now that many notable companies like Nokia, Sony Music and Comcast are already using their services, the company is hopeful to test new areas of growth. Although this appears to be a safe approach, the fact that every new area brings forth new challenges should not be forgotten. So far, the companyââ¬â¢s services were utilized by users who were looking for entertainment; but the application of this companyââ¬â¢s recommendation technology in other areas e.g. in health for diagnosis, will be totally different scenario. The recommendations generated by the companyââ¬â¢s algorithms, in such areas of life will have far more legal weightage with unexpected ethical implications than they had in entertainment sector. Another problem would be the presence of competitors in the new fields, since people in the market will be well aware of the naà ¯ve nature of the company in the new waters. As far as the alternatives to the present approach are
Wednesday, October 30, 2019
East Coast Insurance Company Case Study Example | Topics and Well Written Essays - 1000 words
East Coast Insurance Company - Case Study Example As per the facts presented by the case, the company is facing increased workload of healthcare claims with a dearth of adept and skilled talent. The external environment also does not present opportunity to recruit a professional workforce that could handle the mammoth task. No doubt, the Strategic Planning Committee has come up with a host of solutions that diffuse through financial, human resources, environmental and even competitive domains of the organization. An important and worth discussing factor in the present case is the involvement of a government agency, which can be an appropriate thriving ground for the development of the fungus of ââ¬Ënon-ethical behaviorââ¬â¢. Looking a bit closer to the facets of the presented case, it is pretty much obvious that the major issue of the company is its increased workload due to the shortage of talented employees. As such, it is a people problem and not a place problem primarily. Even though the office space is not satisfactory, yet competent workforce in place can solve much of the problems of the company. The major operations of the company are to process the claims, where the expertise of people is required and not magnanimity of the building. Keeping this in mind, the prime focus of the management should be to increase the skill level of its employees. Relocating to a new building or to a suburb facility is not the solution as it will only give rise to the greater financial burden. If the company relocates, the employees will have to adjust themselves to a new environment, which will further degrade the quality and the speed of work, which is already under investigation. Similarly, investment in new premises will cut short the chances of the company to look for educated and competent employees or to provide for the training of existing ones.
Monday, October 28, 2019
Outline and evaluate biological explanations of aggression Essay Example for Free
Outline and evaluate biological explanations of aggression Essay The biological explanation of aggression suggests that aggression is caused by genetics, brain structure or bio-chemical influences hormones such as testosterone and neurotransmitters such as serotonin. It includes only biological factors ignoring environmental, psychological and social factors which are better explained by of the social-psychological explanation. The first theory linking genetics to aggression was Court-Browns research study. Sandberg was the first to identify the 47 XYY karyotype. Normally every human has 46 chromosomes 23 from the mother and 23 from the father. When a male, has an extra Y chromosome the 47th chromosome it makes them XYY and this would be a genetic disorder. Court-Brown conducted a longitudinal study on 314 males with XYY chromosome and suggested that males with this chromosome would be better hospitalised due to an increased likelihood of aggressive behaviour. Many institutions took on this idea without further research and as a result many males where hospitalised. This would support the biological view that genetics can cause a person to become aggressive as Court-Brown provided evidence for this, however after further research he further retracted his comments as much of it was based on assumption. Further research into the XYY karyotype found that the only thing that the extra chromosome affected was physical characteristics such as increased height and it did not affect aggressive behaviour in any way. Theilgaard also did research comparing XYY to XY and XYY males. She used thematic apperception tests (TATs). She compared prison inmates to the general population. She found that although XYY males were more likely to give aggressive interpretations of the images this did not mean that they would perform aggressive acts in real-life situations. So this would go against what Court-Brown found. Court-Brown used a lab experiment to conduct his study. A lab experiment is prone to confounding variables because there may be other factors that may influence the outcome of the result. A lab experiment also lacks ecological validity because it is set in an artificial setting and it would be hard to extrapolate findings to real life settings. This would make the study invalid. Also Court-Brown did not operationalize aggression. Many people view aggression in many different ways from verbal aggression to physical aggression. So what kind of aggression did the males show? As aggression was not clearly defined this could lead to inaccurate results. Therefore Court-Browns research would be hard to rely on as it is hard to measure aggression in a uniform way. Theilgaards research also had some short-comings She used a TAT test to measure aggression within her sample. TAT tests have no empirical validity as they are just images, by describing what is in a picture the participate wont be acting aggressively they are merely stating/interpreting what they see, therefore the use of TAT tests does not show the XXY male is aggressive in real life situations and findings should be treated with caution. Overall the genetic approach is heavily reductionist as it does not include other approaches such as social and cognitive approaches. It just assumes that genetics are the main cause of aggression. However by being reductionist it could lead to further psychological research into the area and this might produce more insights into the theory. The genetic theory also over-emphasises the importance of nature and ignores nurture completely. They may be other factors other that genetics that play a role in aggression for example, a persons up-bringing may cause them to act aggressively or the type of culture they belong to may also play a part so to improve its explanation the genetic theory could input some of these ideas into the theory. Another theory from the biological approach which suffers similar problems like reductionism and determinism is the hormonal/neurotransmitter approach. The approach argues that high levels of the hormone testosterone lead to aggression while low levels of the neurotransmitter serotonin lead to aggression. Wagner et al. did research which supported the link between aggression and testosterone. They castrated mice and found that levels of aggression decreased and that there was also a drop in male typical behaviours such as biting. When the mice received testosterone injections levels of aggression started to increase. This would support the view that levels of testosterone can lead to aggression. Another study in this area was by Harrison, he gave male participants aged 20 -56 testosterone injections and then gave them a frustrating game to play. He noted that aggression did increases in all of the men but to differing extents. Furthermore affects were mainly psychological and there were few physical affects.
Saturday, October 26, 2019
The Boston Police Strike :: essays research papers
The Boston Police Strike In 1919, there was a general agreement that the Boston policemen had a great deal to complain about. They disliked their hours, working conditions and most importantly, their salary. After getting a raise in 1913, the policemen had asked for another raise in 1917 to compensate for the high wartime inflation. By the time the officers had finally received that raise, the buying power of that extra money had gone down so low that the policemen were still having problems making ends meet. Another point of struggle was the long hours the officers were forced to work, including a night in the station house each week and the special details. Lastly, the police force objected to the conditions that they were forced to work in. Men had to sleep in beds infested with all sorts of bugs and on the soiled sheets that were left over from the previous occupants. To voice their complaints, the policemen turned to the Boston Social Club, a fraternal organization founded by Police Commissioner Stephen O'Meara in 1906. On the other end of the negotiating table sat Police Commissioner Edwin U. Curtis. Although Curtis considered himself to be sympathetic to the policemen's demands, he refused to deal with the union. As the days went on, the situation grew tenser. On August 26 and 29, Curtis fired 19 workers for their union activity. This caused massive outrage among the workers and on Tuesday, September 9, the strike began with three-fourths of the force walking out. Realizing that the police force was gone, some of Boston's residents began to commit small crimes. This eventually escalated into massive riots that continued until 1:30 in the morning. The following day, the small fraction of the police force had much difficulty maintaining the order but by that night the National Guard was deployed and the violence slowly came to a stop over the following couple of days.
Thursday, October 24, 2019
Tylenol Crisis
Abstract Part 1: Crisis Scenario Development Develop a scenario describing a crisis situation. Possible topics for your scenario include school violence, workplace violence, terrorist attack, sexual assault, or natural disasters. Your scenario must include sufficient breadth and depth in terms of the details surrounding the incident you have chosen, to include: â⬠¢Ã Description of the crisis. â⬠¢Ã Description of the amount of damage. â⬠¢Ã Description of the victims (physical and psychological damage). â⬠¢Ã Information about the perpetrator(s).Project 1 Part 1 In October of 1982, Tylenol, the leading pain-killer medicine in the United States at the time, faced a tremendous crisis when seven people in Chicago were reported dead after taking extra-strength Tylenol capsules. It was reported that an unknown suspect put 65 milligrams of deadly cyanide into Tylenol capsules, 10,000 more than what is necessary to kill a human. The tampering occurred once the product r eached the shelves. They were removed from the shelves, infected with cyanide and returned to the shelves (Mitchell, 1989).In 1982, Tylenol controlled 37 percent of its market with revenue of about $1. 2 million. Immediately after the cyanide poisonings, its market share was reduced to seven percent (Mitchell 1989). Once the connection was made between the Tylenol capsules and the reported deaths, public announcements were made warning people about the consumption of the product. Johnson & Johnson was faced with the dilemma of the best way to deal with the problem without destroying the reputation of the company and its most profitable product.Following one of their guidelines of protecting people first and property second, McNeil Consumer Products, a subsidiary of Johnson & Johnson, conducted an immediate product recall from the entire country which amounted to about 31 million bottles and a loss of more than $100 million dollars. (Lazare, Chicago Sun-Times 2002) Additionally, they halted all advertisement for the product. Although Johnson & Johnson knew they were not responsible for the tampering of the product, they assumed responsibility by ensuring public safety first and recalled all of their capsules from the market.In fact, in February of 1986, when a woman was reported dead from cyanide poisoning in Tylenol capsules, Johnson & Johnson permanently removed all of the capsules from the market. The reason Tylenol reacted so quickly and in such a positive manner to the crisis stems from the companyââ¬â¢s mission statement. (Lazare Chicago Sun-Times 2002). On the companyââ¬â¢s credo written in the mid-1940ââ¬â¢s by Robert Wood Johnson, he stated that the companyââ¬Ës responsibilities were to the consumers and medical professionals using its products, employees, the communities where its people work and live, and its stockholders.Therefore, it was essential to maintain the safety of its publics to maintain the company alive. Johnson & Johnsonâ⠬â¢s responsibility to its publics first proved to be its most efficient public relations tool. It was the key to the brandââ¬â¢s survival. On September 29, 1982, 12-year-old Mary Kellerman of Elk Grove Village, Illinois, woke up at dawn and went into her parentsââ¬â¢ bedroom. She did not feel well and complained of having a sore throat and a runny nose. To ease her discomfort, her parents gave her one Extra-Strength Tylenol capsule. At 7 a. m. they found Mary on the bathroom floor.She was immediately taken to the hospital where she was later pronounced dead. Doctors initially suspected that Mary died from a stroke, but evidence later pointed to a more sinister diagnosis. That same day, paramedics were called to the Arlington Heights home of 27-year-old postal worker Adam Janus. When they arrived, they found him lying on the floor. His breathing was labored, his blood pressure was dangerously low and his pupils were fixed and dilated. The paramedics rushed Adam Janus to the e mergency room at Northwest Community Hospital, where they attempted to resuscitate him, but it was too late.Adam died shortly after he was brought to the hospital. His death was believed to be the result of a massive heart attack. However, doctors would later learn that his death was anything but natural. On the eve of Adams death, his aggrieved family gathered at his house to mourn his sudden passing and discuss funeral arrangements. Adams 25-year old brother Stanley and his 19-year-old bride, Theresa, both suffered from headaches attributed to the stress of losing a family member. To his relief, Stanley found on Adams kitchen counter a bottle of Extra Strength Tylenol. He took a capsule from the bottle and then gave one to his wife.Shortly after taking the capsules, both Stanley and his wife collapsed onto the floor. The shocked family members immediately called an ambulance. Once again paramedics rushed to the home of Adam Janus and attempted to resuscitate the young couple. Howe ver, Stanley died that day, and his wife died two days later. Twenty-seven-year-old Mary Reiner of Winfield, Illinois, was recovering after the birth of her son when she unsuspectingly ingested the Tylenol laced with cyanide. She died a short time later. That same day, 35-year-old Paula Prince, a United Airlines stewardess, was found dead in her suburban Chicago apartment.Cyanide-filled Tylenol capsules were also found in her home. The seventh known victim of the Tylenol poisonings was 35-year-old Mary McFarland of Elmhurst, Illinois. While the blood samples were being tested for cyanide, two firefighters in another location of the Chicago suburbs discussed the four bizarre deaths that had recently taken place in the neighboring area. Arlington Heights firefighter Philip Cappitelli talked with his friend Richard Keyworth from the Elk Grove firehouse about Mary Kellerman and the fact that she had taken Tylenol before she died.Keyworth suggested that all the deaths could have been rel ated to the medicine. Following his friends suggestion, Cappitelli called the paramedics who worked on the Janus family and asked if they too had taken Tylenol. To both the menââ¬â¢s surprise, they discovered all three Janus family members had ingested the popular pain reliever. The police were immediately sent to the Kellerman and Janus homes to retrieve the suspicious bottles. Investigators soon discovered the Tylenol link. Urgent warnings were broadcast, and police drove through Chicago neighborhoods issuing warnings over loudspeakers.During the initial investigations, a man named James William Lewis sent a letter to Johnson & Johnson demanding $1 million to stop the cyanide-induced murders. Police were unable to link him with the crimes, as he and his wife were living in New York City at the time. He was convicted of extortion, served 13 years of a 20-year sentence, and was released in 1995 on parole. WCVB Channel 5 of Boston reported that court documents, released in early 2 009, ââ¬Å"show Department of Justice investigators concluded Lewis was responsible for the poisonings, despite the fact that they did not have enough evidence to charge him. Lewis has denied responsibility for the poisonings for several years. A second man, Roger Arnold, was investigated and cleared of the killings. He had a nervous breakdown due to the media attention, which he blamed on Marty Sinclair, a bar owner. In the summer of 1983, Arnold shot and killed John Stanisha, whom he mistook for Sinclair. Stanisha was an innocent man who did not know Arnold. Arnold was convicted in January 1984 and served 15 years of a 30-year sentence for second-degree murder. He died in June 2008.Laurie Dann, who poisoned and shot people in a May 1988 rampage in and around Winnetka, Illinois, was briefly considered as a suspect, but no direct connection was found. On May 19, 2011, the FBI requested DNA samples from ââ¬ËUnabomber' Ted Kaczynski in connection to the Tylenol murders. Kaczynski denied having ever possessed potassium cyanide. The investigation is still under way. The first four Unabomber crimes happened in Chicago and its suburbs from 1978 to 1980, and Kaczynski's parents had a suburban Chicago home in Lombard, Illinois, in 1982, where he stayed occasionally.The media gave Johnson ; Johnson much positive coverage for its handling of the crisis; for example, an article in The Washington Post said, ââ¬Å"Johnson & Johnson has effectively demonstrated how a major business ought to handle a disaster. â⬠The article further stated that ââ¬Å"this is no Three Mile Island accident in which the company's response did more damage than the original incident,â⬠and applauded the company for being honest with the public. In addition to issuing the recall, the company established relations with the Chicago Police Department, the FBI, and the Food and Drug Administration.This way it could have a part in searching for the person who laced the capsules and they could help prevent further tampering. While at the time of the scare the company's market share collapsed from thirty-five percent to eight percent, it rebounded in less than a year, a move credited to the company's prompt and aggressive reaction. In November, it reintroduced capsules but in a new, triple-sealed package, coupled with heavy price promotions and within several years, Tylenol had become the most popular over-the-counter analgesic in the U. S. A number of copycat attacks involving Tylenol and other products ensued during the following years.One of these incidents occurred in the Chicago area; unlike Tylenol, it actually forced the end of the product affected by the hoax, Encaprin, from Procter ; Gamble. The incident inspired the pharmaceutical, food, and consumer product industries to develop tamper-resistant packaging, such as induction seals and improved quality control methods. Moreover, product tampering was made a federal crime. Additionally, the tragedy prompted the pharmaceutical industry to move away from capsules, which were easy to contaminate as a foreign substance could be placed inside without obvious signs of tampering.Within the year, the FDA introduced more stringent regulations to avoid product tampering. This led to the eventual replacement of the capsule with the solid ââ¬Å"capletâ⬠, a tablet made in the shape of a capsule, as a drug delivery form and with the addition of tamper-evident safety-seals to bottles of many sorts. References (n. d. ). Retrieved August 31, 2012, from http://www. trutv. com/library/crime/terrorists_spies/terrorists/tylenol_murders/index. html (n. d. ). Retrieved August 30, 2012, from http://iml. jou. ufl. edu/projects/fall02/susi/tylenol. htm (n. d. ). Retrieved August 29, 2012, from http://aboutpublicrelations. net/uczoulas1. htm
Wednesday, October 23, 2019
Seismic Analysis
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. 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.INTRODUCTIONBecause 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.LITERATUREShehata (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 STUDYTo 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 DESCRIPTIONIn Present Study Total 3 Models have been Modelled to Evaluate Dynamic Behaviour of High Rise Buildings by Considering Vertical Geometrical Irregularities.M odel 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 ModelMETHODOLOGYThe 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 so ftware. 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 ââ¬â 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 ââ¬â 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 effectREFERENCESA.B. Kawade , Mr. Abhijeet A. Sahane ââ¬Å"Seismic pounding effect in buildingâ⬠Amrutvahini college of engineering, Sangamner.Alireza M.Goltabar.R, Shamstabar Kami, A.Ebadi, (2008) ââ¬Å"Analyzing the effective parameters in Pounding Phenomenon between Adjacent Structure due to Earthquakeâ⬠,The 14th World Conference on Earthquake Engineering, pp. 12-17, Beijing, China.Diego Lopez Garcia, (2004)ââ¬Å"Separation between Adjacent Nonlinear Structures for Prevention of Seismic Poundingâ⬠, 13th World Conference on Earthquake Engineering Vancouver, B.C., Canada, Paper No. 478.Jeng-Hsiang Lin, Cheng-Chiang Weng, (2002)ââ¬Å"A Study on Seismic Pounding Probability of Buildings In Taipei Metropolitan Areaâ⬠, Journal of the Chinese Institute of Engineers, Vol. 25, No. 2, pp. 123-135.K.Kasai, V.Jeng, P.C.Patel ; J.A.Munshi ââ¬Å"Seismic Pounding Effects ââ¬â Survey and Analysisâ⬠Illinois Institute of Technology, Chicago,USA.Mizam Dogan and Ayten Gunaydin, (2009)ââ¬Å"Pounding of Adjacent RC Buildings During Seismic Loadsâ⬠, Journal of Engineering and Architecture, Vol: XXII, No: 1.Raja Rizwan Hussain et.al. (2013)ââ¬Å"Non-linear FEM Analysis of seismic Induced Pounding between Neighbouring Multi-Storey Structuresâ⬠, Latin American Journal of solids and structures, pp. 921-939.Shehata E. Abdel Raheem, (2006)ââ¬Å"Seismic Pounding between Adj acent Building Structuresâ⬠, Electronic Journal of Structural Engineering, Vol. 6, pp.66-74.Susendar Muthukumar and Reginald DesRoches, (2006)ââ¬Å"A Hertz contact model with non-linear damping for pounding simulationâ⬠, Earthquake Engineering and Structural Dynamics, Vol.35, pp.811-828.Weng Dagen, Li Tao Bashar Alfarah, Fransisco Lopez-Almansa (2017)ââ¬Å"Non linear time history analysis of a base isolated RC building in shanghai founded on soft soilâ⬠Tongji University, Technical university of catalonia, paper No. 2634.
Subscribe to:
Posts (Atom)