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Estimation of wind load on a greenhouse and evaluation of its structural stability

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Title Estimation of wind load on a greenhouse and evaluation of its structural stability
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Creator Ajit Nayak, K V Ramana Rao
 
Subject Wind load,Structural stability,FEM,Pressure co-efficient,Truss
 
Description Not Available
Among all the loads that act on the greenhouse, wind load is the major one. In India, the basic wind speed varies from 33 to 55 m/s. Along with wind speed, wind load also depend on the geometry, height to width ratio, effective frontal area etc. So greenhouse design should be customized as per the localized wind load. ‘One size fits all approach’ in greenhouse design may leads to failure of the structure or being expensive. Unfortunately the standard for greenhouse design is lagging far behind in India. In this experiment, wind load for the double arch type naturally ventilated greenhouse was estimated as per IS code 875 (part 3) and IS 14462: 1997. The design wind pressure estimated to be 772 N/m2 and wind load on the roof of the greenhouse is 222 kN (Suction) and 185 kN (Pressure). A model of the greenhouse is developed by means simulation with Finite Element Method using ANSYS 15.0 to test its stability at the calculated wind load. The truss and columns are studied with deflections and failure zones diagrams and possible failures were found out to redesign the elements.
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Date 2021-07-29T17:25:10Z
2021-07-29T17:25:10Z
2014-09-20
 
Type Research Paper
 
Identifier Ajit Nayak, K V Ramana Rao. 2014. Estimation of wind load on a greenhouse and evaluation of its stability. International Journal of Agricultural Engineering. 7(2): 461-466.
0974-2662
http://krishi.icar.gov.in/jspui/handle/123456789/51228
 
Language English
 
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Publisher Not Available