BAMBOO GUADUA ANGUSTIFOLIA AS A STRUCTURAL MATERIAL FOR DESIGN Authors: G. Granados, F. Lamus, J. Lozano, P. Luna , C. Takeuchi Keywords: Guadua angustifolia, mechanical properties, allowable stresses, design parameters, quality control Abstract: Guadua angustifolia has been used in Colombia as construction material for centuries. The different earthquakes in Colombian history have demonstrated the good seismic performance of structures and pointed the errors of inadequate use. So, normalized parameters are necessary for seismic resistant design of G. angustifolia structures; these parameters must include allowable stresses values and demand a material quality control during the construction process. This paper presents the results obtained from the project “Validation of G. angustifolia as a structural material for allowable stresses method design”, financed by the Ministry of Agriculture and Rural Development of Colombia and carried out by the National University of Colombia. The project aims to establish values of allowable stresses, to design methods for structures and to establish a protocol of the material quality control during construction. Samples of G. angustifolia from three different areas of Colombia have been tested in compression, tension and shear parallel to the fiber, bending, torsion and perpendicular compression, in order to determine allowable stresses for different loads. The samples were taken from the bottom, middle and top parts of the culm. The design methods by allowable stresses and the protocol of quality control are based on structural mechanics and different research projects made at National University of Colombia. actahort.org/books/1003/1003_15.htm
Posted on: Thu, 27 Mar 2014 01:08:23 +0000
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