Objetivo: Las condiciones topográficas y altas especificaciones técnicas de los recientes proyectos infraestructura vial ejecutados por el gobierno colombiano ha impulsado la construcción numerosos puentes segmentales. La Norma Colombiana Diseño Puentes – LRFD CCP 14 no establece criterios específicos para evaluación nuevos que permitan estructural. Con objetivo fomentar implementación pruebas ...

In this article, a novel calculation procedure using optimization techniques is proposed to compute the torsion–shear interaction curves for reinforced concrete (RC) beams. The applied NBR 6118 and AASHTO LRFD standards in order evaluate their reliability. For this, some experimental results found literature related RC beams tested under combined torsion shear, as well from combined-action soft...

The assessment of the load-bearing capacity and fatigue strength existing railway bridges has been playing an increasingly important role in infrastructure management operators for several years now. Currently, many bridge structures have operation longer than it was foreseen during their planning construction. In addition, axle loads on lines, as well demands reliability verification results, ...

Perencanaan struktur dengan metode STM (Strut & Tie Method) dapat digunakan untuk mendekati perilaku tegangan geser yang besar dan mempunyai regangan non linier disepanjang penampang struktur. Menentukan rangka batang pada merupakan langkah iterative melibatkan proses trial and error. Hal ini membutuhkan upaya lebih dalam penggunaan, utamanya bagi pemula baru mengenal STM. Estimasi kekuatan...

Abstract Bangladesh is connected through bridges and many of them are experiencing damages due to the aging concrete, weathering effect, or excessive loading. Repair retrofitting those becoming inevitable make operational. In this study, a concrete bridge have been investigated non‐destructive tests numerical methods. A repair strategy for damaged girders has developed using epoxy injection, sh...

This paper attempts to improve the computational efficiency of the well known particle swarm optimization (PSO) algorithm for tackling discrete sizing optimization problems of steel frame structures. It is generally known that, in structural design optimization applications, PSO entails enormously time-consuming structural analyses to locate an optimum solution. Hence, in the present study it i...

It has been argued that the AASHTO LRFD design code for maximum live loads on highway bridges is overly conservative. In an attempt to determine the level of conservativeness, if any, the writers developed a methodology incorporating real-time visual data collection from traffic cameras coupled with structural strain response of girder bridges. Average daily truck traffic along with frequency o...