![]() ![]() Si el puente puede sostener esa carga sin aflicción, la prueba de carga es exitosa, y se ha demostrado de una manera experimental que el puente cumple con los requisitos de la norma en términos de capacidad. Se puede utilizar pruebas de carga, en las cuales se aplica una carga equivalente a la carga viva con sus factores de carga correspondientes. Por esa razón, pruebas en el puente mismo pueden ser usados para reducir las incertitudes. Abstract " Pruebas de carga en puentes de hormigón armado: experiencias de una programa de pruebas en Holanda': Para puentes existentes con largas incertitudes, métodos analíticos tienen limitaciones. Even though more experimental research is needed to develop proof load testing for shear in a guideline or code for the Netherlands, the currently available research results already lead to interesting conclusions with regard to the behaviour of bridges proof load tested in shear, and the required safety margin to avoid damage to the bridge. However, many existing bridges do not fulfil the requirements for shear upon assessment according to the current live load models. In the German and North American guidelines for load testing, load testing for shear is not permitted. Based on this information, recommendations for proof load tests of reinforced concrete slab bridges have been developed for the failure modes of flexure and shear. Additional laboratory testing was carried out as well. To research this topic, and to develop recommendations for proof load tests, a series of proof load tests and a collapse test were carried out in the Netherlands. Therefore, it is important to instrument the bridge for a proof load test, and to evaluate during the test that the load does not result in permanent damage to the bridge. The loads used for proof load tests are significantly larger. It should be understood that this method for assessment is different from the diagnostic load tests that are carried out in Ecuador prior to opening a bridge. If the bridge can carry this load without signs of distress, the proof load test is successful, and it has been shown experimentally that the bridge fulfils the code requirements. A type of such a field test is a proof load test, in which a load equivalent to the factored live load is applied. Therefor e, to reduce these uncertainties, field testing of a bridge can be used. For existing bridges with large uncertainties, analytical methods have limitations. ![]()
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