Evaluation Of The Bamboo Structure Use As Constructive Element For Greenhouses [avaliação De Estrutura De Bambu Como Elemento Construtivo Para Casa De Vegetação]

The use of technology to protect and produce vegetables and ornamental plants was developed over several adaptation phases that supported the demand for quality and amount of products. These developments also reduced production costs and climate damage to the crops. Many of these adaptations were carried out by farmers on their own initiative, using different materials and devices to solve their problems. This study was carried out at Agricultural Engineering College - Campinas University/UNICAMP, from December 2002 to January 2003, with the objective of evaluating the deformations of the constructive system of bamboo structure for greenhouses, submitted to different spacing among columns, and different vertical strains. It was tested the use of beams and columns built with bamboo stems from the specie Bambusa tuldoides Munro. The beams and columns were tied together with plastic spacing parts, specially designed to facilitate and standardize the construction of the building, providing more resistance and stability. Three column spaces (2.0, 2.5 and 3.0 m) were evaluated under different load strains. The best result was obtained with a spacing of 2.5 m.271100109BERALDO, A.L., Bambu Brasilis, , www.agr.unicamp.br/bambubrasilis, Disponível em:, Acesso em: 27 ago. 2002DELLA VECCHIA, P.T., KOCH, P.S., História e perspectivas da produção de hortaliças em ambiente protegido no Brasil (1999) Informe Agropecuário, 20 (200-201), pp. 64-68. , Belo Horizonte, vFONTES, P.C.R., Produção de hortaliças em ambiente protegido: Uma técnica a ser aprendida (1999) Informe Agropecuá rio, 20 (200-201), pp. 1-2. , Belo Horizonte, vGHAVAMI, K., Bambu: Um material alternativo na engenharia (1992) Engenharia, (492), pp. 23-27. , São PauloHIDALGO LÓPEZ, O. Bambú, su cultivo y aplicaciones en: Fabricación de papel, construcción, arquitectura, ingeniería e artesanía. Cali: Italgraf, 1974. 176 pRAJ, V., Treatise on utilization of bamboo as reinforcement in ferrocement (1991) Journal of Ferrrocement, 21 (4), p. 371. , Bangkok, v, 81, oc