Resumen

CARMIOL-UMANA, Virginia. Guadua bamboo In pedestrian bridges. Tecnología en Marcha [online]. 2016, vol.29, suppl.1, pp.3-13. ISSN 0379-3982.  http://dx.doi.org/10.18845/tm.v29i5.2513.

When discussing pedestrian bridges, it is always useful to consider the latest work done in Colombia. These innovative constructions not only make it possible to cross rivers and roads, but also show how competitive this material is in ecological engineering. The spread of this type of construction throughout the country indicates that Guadua bamboo is already a part of Colombian culture, and that its fresh style is no longer associated only with poverty and social improvement projects. Furthermore, it shows that this material is a perfectly feasible option for a country such as ours, which is exposed to landslides, flooding and earthquakes.

Although pedestrian bridges were initially built to shorten distances and overcome natural barriers, during the last several decades they have also become necessary to safeguard pedestrians who have to walk in areas of very high urban growth. However, in spite of the existence of alternative solutions to the same problem, almost all such solutions are postponed, in that they normally involve a State investment.

This article addresses a construction technique which originated in South American indigenous populations. Although it was forgotten by several generations, this technique, which has been updated, has multiple benefits. By injecting concrete in bamboo internodes it is possible to build structures that are in harmony with current needs, as well as bridges with more lighting Most importantly, this makes low-impact construction accessible to small communities or private businesses with limited resources.

Palabras clave : Bamboo; Guadua; pedestrian bridge; ecological engineering; truss beam; arch; compression; tension; traction.

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