Structural analysis of common existing greenhouses designs in different agro climatic zones of India

Greenhouse is popular throughout the country for growing high value crops, which is available in different designs suiting different agro climatic conditions but single design of greenhouse cannot be adopted throughout the country.The wind is the major force responsible for failure of the structure, therefore popular greenhouse designs Quonset, walk in tunnel, gothic and double arc single span and multi-span were selected for the study. In India, the basic wind speed varies from 33 to 55 m/s. The pressure co-efficients due to local wind load were determined as per IS : 14462: 1997 for the designs. Selected designs were analyzed for dead load, live load, snow load, wind load and load combination as per Loads were calculated as per BIS standards. Standards IS: 875 (1987) (Part I -Dead Load, Part II-Live Load, Part III-Wind Load and Part IV-Snow Load) and NGMA.