Structural behavior of Two-Floor Housing Made with Frames Braced with Prefabricated Bamboo Guadua Panels
C. Takeuchi, E. Ayala, C. Castillo
Abstract. In the present research, the structural behaviour of two-store frames stiffened with the structural system of Columns and Prefabricated Panels Frames (PCPP) was evaluated. The system is composed of columns in bamboo Guadua angustifolia Kunth anchored and assembled in-situ with prefabricated bamboo guadua panels, including beams. Their performance under horizontal and vertical loads was studied. Then, with this structural system, two houses were designed: one for social interest housing and the other one for upper-middle-income housing. Three frames with a different geometric configuration were tested: two braced frames and one non-braced acting as a control frame. The aim was to find efficient systems in terms of displacements. All the frames were loaded until a maximum deck displacement of 0.57 m. Two frames were tested under monotonic horizontal load and the third one was tested with loading and unloading cycles. Additionally, mechanical characterization tests of the bamboo were done for the frames simulation in the structural analysis software SAP2000. Subsequently, the simulation was implemented in the two types of housing mentioned above. Based on the tests results, the frames with braced panels accomplish their structural function. This type of frames stiffens and controls the displacements of the structure with horizontal loads in an efficient way, when the structural system is still in an elastic range. However, due to the premature damage of the brace connections, the frames lose stiffness. At the end of each test, the frames presented remnant strain but always kept their structural integrity without collapse. According to numerical calibration, it is concluded that this system can be implemented in different architectural configuration housing, employing different types of panels. Some of these panels are required to resist vertical loads and the others, with diagonal elements, provide the required stiffness against horizontal load. The compliance of the design allowable stresses and the drift in elastic range according to the normative were verified.
Keywords
Bamboo Guadua Frames, Bamboo Prefabricated Panels, Drift, Bamboo Housing
Published online , 13 pages
Copyright © 2018 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: C. Takeuchi, E. Ayala, C. Castillo, ‘Structural behavior of Two-Floor Housing Made with Frames Braced with Prefabricated Bamboo Guadua Panels’, Materials Research Proceedings, Vol. 7, pp 167-179, 2018
DOI: https://dx.doi.org/10.21741/9781945291838-16
The article was published as article 16 of the book Non-Conventional Materials and Technologies
References
[1] Luna, P., Lozano, J., & Takeuchi, C. (2014). Experimental Determination of Characteristics values for Guadua Angustifolia. Maderas. Ciencia y Tecnología, 16 (1), 77–92.
[2] Reglamento Colombiano de Construcción Sismo Resistente – NSR-10, Title G-Structures of Wood and Structures of Guadua,
[3] Aravena, A., & Iacobelli, A. (2016). ELEMENTAL: Manual de vivienda incremental y diseño participativo (Hatje Cant). New York.
[4] Asociacion Colombiana de Ingenieria Sismica (AIS). (2014). Manual de construcción sismo resistente de viviendas en bahareque encementado.
[5] Rivera, J. F. (2008). Comportamiento estructural de pórticos en guadua arriostrados mediante diagonales en guadua. Universidad Nacional de Colombia.
