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Wind analysis of structure by SHYAMSUNDAR BOSU,INDIA
Wind analysis is important for designing tall structures to withstand wind loads. As structures get taller, they become more susceptible to collapse from wind. Different types of wind storms like cyclones and hurricanes exert different wind speeds and loads on structures. Proper wind analysis is needed to determine wind speed zones and calculate appropriate wind loads to design structures. Not considering wind loads can lead to economic losses and loss of life if structures collapse. Precautions like dividing walls and using prefabricated units can improve a structure's ability to withstand wind loads. Advances in technology and structural systems have reduced building collapses over time as wind analysis in design has improved.
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Wind analysis of structure by SHYAMSUNDAR BOSU,INDIA
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- 2. Why we choosethis topic:
- 3. Increasing tallest structurerapidlyIncreasing tallest structure rapidly
- 4. Collapse due towind loadCollapse due to wind load
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- 6. Wind is ahorizontal movement of free air. It plays an important role in design of structure because it exerts load on building.
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- 8. wind flow measurement:windflow measurement:
- 12. TYPES OF WIND STORMS Rotating windRotatingwind Non-Rotating windNon-Rotating wind
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- 19. Top Tallest Buildings: Toronto's_CN_TowerToronto's_CN_Tower Tokyo_Sky_TreeTokyo_Sky_TreeHongkong’s Twin TowerHong kong’s Twin Tower
- 20. More interesting factsand points on designing wind analysis structure: 1. How much Effects on structure………………. 2. Prone zones of wind speed……………… 3. How to design wind load structure……….. 4. How much economic and precautions are needed for design……………. 5. Discuss about newest researches and inventory conclusion…………………………..
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- 25. WIND LOAD AFFECTED STRUCTURES: Tocoma Bridge, USTocoma Bridge, US (68km/hr)(68km/hr)
- 26. Cyclone HUDHUD, APCycloneHUDHUD, AP (195km/hr)(195km/hr) BiharBihar (155km/hr)(155km/hr)
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- 28. WIND SPEED ZONEIN INDIA
- 29. * Wind speedand direction are inputs for calculation of evapotranspiration. Wind speeds are controlled by local pressure anomalies which in turn are influenced by temperature and local topographic features. Generally the wind speed vs. temperature graph indicate this graph . ** Wind speed exhibits a wide variation not only from place to place but also during the day. The wind direction may influence evaporation if the surrounding environment has different humidity in different directions.
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- 33. DESIGN OF WINDLOAD (as per IS:875.part 3)
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- 39. ECONOMIC LOSS WITHOUT CONSEDERINGWIND ANALYSIS: Wind load is proportional to the square of wind speed so when the normalWind load is proportional to the square of wind speed so when the normal speed double then the wind load exerts four times load of wind speed on thespeed double then the wind load exerts four times load of wind speed on the structure.structure.
- 40. Some examples aregiven into the following data whereSome examples are given into the following data where various economic and many peoples died due tovarious economic and many peoples died due to affects of windstorms….>>>>>>>>>>>>>affects of windstorms….>>>>>>>>>>>>> 86,000 peoples were died at Banquiu dam in86,000 peoples were died at Banquiu dam in china,1975china,1975 226 peoples were died at Angers bridge in226 peoples were died at Angers bridge in France,1850France,1850 120 peoples were died at Amarube rail road bridge120 peoples were died at Amarube rail road bridge in Japan,1986in Japan,1986
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- 42. Precaution: Wind pressure isthe principal force tending toWind pressure is the principal force tending to disturb the structure stability of isolated wallsdisturb the structure stability of isolated walls greatest stress produced is at the bottom of agreatest stress produced is at the bottom of a wall where the wind exerts the greatest turningwall where the wind exerts the greatest turning moment.moment. Equating the resisting moment of the wall to theEquating the resisting moment of the wall to the moment due to wind pressure.moment due to wind pressure. Unsymmetrical walls can be divided into twoUnsymmetrical walls can be divided into two separate and each block tested for structuralseparate and each block tested for structural stability as an independent unit.stability as an independent unit.
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- 45. CONCLUSION: Differences indesign procedure in different wind prone regions. Use of present technology. Using pre-fabricated units. Use of bundled tube. New improved structural systems.
- 46. Building Collapse vsTimeBuilding Collapse vs Time After using wind load design on structureAfter using wind load design on structure
- 47. References: 1. https://en.wikipedia.org/wiki/Wind_engineering 2. https://en.wikipedia.org/wiki/Structural_load 3. https://en.wikipedia.org/wiki/Wind_speed 4. www.iitk.ac.in/nicee/IITK-GSDMA/W02.pdf 5. https://www.google.co.in/search? q=how+does+wind+load+affect+a+structure&biw=1366&bih= 657&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjWzLi95ZfMA hXHmpQKHRWKCykQ_AUIBigB 6. IS:875:1987 part3 7. www.youtube.com 8. www.google.co.in/wind analysis of structure images
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