Since the decade of the 1990 the neural networks algorithms have been used for compute approximate solutions for different problems in engineering. In the building behavior against loads is important to know its response. The behavior during the earthquakes and the estimation of the response is quite difficult to compute due to the nonlinearity of geometry and material properties. Neural networks approach is a powerful tool for computing the response of structures with an appropriate learning process from big data of structural components. Even if some material parameters are unknown, the learning on a neural network will be possible and will provide an estimation using collect information from experience and learning. To make a learning process in this paper, we present a simple algorithm of back propagation implemented in python programming language where the output shows the decrease ...

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En el presente reporte se propone el uso de una vigueta no convencional de sección triangular con diagonales cruzadas para ser usadas en estructuras de arco. Se construyo un arco de 7 metros de luz con viguetas de 6 metros para investigar el comportamiento frente a cargas de gravedad extremas y cargas laterales monotonicas. Para probar la interacción entre el arco soporte y las viguetas se aplicaron cargas increméntales sobre cada elemento encontrándose una deflexión elástica del orden de 0,007 m. para una carga repartida de 931 N/m para una demanda de las especificaciones A1SC-LRFD (L/360). Se encontró una deflexión máxima al final del ensayo del orden de 0.013 m. para una carga repartida sobre las viguetas de 1470 N/m. Para probar la efectividad de la conexión empernada entre arco y viguetas, un ensayo a escala natural bajo aplicación de carga lateral monotonía fue desarrol...

A non conventional purlin with triangular section and cross diagonals is proposed to be used in Steel Arch Structures. For this purpose a full scale arch of 7 meters span with 6 meters purlins, was built in order to perform a loading test under extreme gravity loads and monotonic test underlateral load. To prove the interaction between the supporting arch and the purlins, incremental gravity load was applied over each element. Elastic deflection of 0.007 m for 931 N/m load was found which is under the demand of AISC-LRFD (L/360). Maximum deflection of 0,013 m for 1470N/m load was found at the end of the test. To prove how effective is the bolt connection between the purlin and the arch, a full scale test under lateral monotonic load applied at one extreme was performed, to simulate the extreme wind load over the structure. A 2254 N load produces 0,05 m of lateral displacement on the syst...