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Showing 1 to 12 of 12 for “"curved bridges"”.
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Assessment of Foundation Rocking Behavior in Reducing the Seismic Demand on Horizontally Curved Bridges
… to find ways to mitigate earthquake damage in bridges. One of the ways that has been proposed to achieve this is to permit the foundations to rock. In order to investigate the system effects of rocking foundations, a two-fifth scale, three-span horizontally curved steel plate girder bridge …
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Seismic Response and Analytical Fragility Functions for Curved Concrete Box-Girder Bridges
Curved bridges are constructed to conform to geometric constraints resulting from traffic and structural restrictions. They are different from their straight counterparts since the response coupling in the longitudinal and transverse directions and rotation of the superstructure may lead to …
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Análise da distribuição de momento fletor devido a carga móvel em pontes curvas de concreto armado
The structural analysis of bridges with curved longitudinal geometry presents greater complexity than the straight due to the coupling between the bending moment and the torsion moment, leading to the need to use structural members that transmit these forces efficiently. The structural behavior of …
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Cálculo automático de pontes de eixo curvo
… the automatic analysis of principal beams of the curved bridges, considering them isolatad from the columns. The computer program developed allows the analysis of bridges with any variation in curvature and cross section. At first, a brief description of bridges and the development of the …
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Response of Continuous Steel I-Girder Bridges Subject to Temperature Variation
… the superstructure in continuous slab-on-girder bridges must be freely permitted to avoid potential adverse behavior due to the development of thermal forces. The use of fixed and guided bearings can introduce a significant amount of restraint against thermal deformation that, if not accommodated …
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Development of Electromagnetic Friction Dampers for Improving Seismic Performance of Civil Structures
… of base-isolated buildings and horizontally curved bridges is demonstrated. The numerical results show that the proposed SEMFD is capable of limiting the displacement of the base floor in base-isolated buildings without noticeably increasing the inter-story drifts and absolute accelerations …
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Effect of Thermal Loading on the Performance of Horizontally Curved I-Girder Bridges
… increasing space and geometrical limitations. Curved bridges have become a popular design alternative to the traditional straight girder or chorded bridges as they can provide the designer a more cost effective solution to complicated geometrical limitations or site irregularities. However, the …
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Performance of RC Bridge Columns under Cyclic Combined Loading including Torsion
… specifically in the skewed and horizontally curved bridges, the bridges with unequal spans or column heights, and the bridges with outrigger bents, can be subjected to cyclic combined loading including axial, flexure, shear, and torsion loads during earthquakes. This combined loading …
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Seismic behavior of circular reinforced concrete bridge columns under combined loading including torsion
"Reinforced concrete (RC) columns of skewed and curved bridges with unequal spans and column heights can be subjected to combined loading including axial, flexure, shear, and torsion loads during earthquakes. The combination of axial loads, shear force, and flexural and torsional moments can result …
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Three-dimensional thermal analysis of curved concrete box girder bridges
… structure at any instant of time. In concrete bridges, such temperature variations can result in stresses which can be as large as those caused by dead and live loads. Prediction of such temperature variations is a complex problem since the temperature varies with time, within the bridge …
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Impact of complex system behavior on seismic assessment of RC bridges
The damage to reinforced concrete (RC) bridges observed in the 1971 San Fernando, 1994 Northridge, and 1995 Kobe earthquakes prompted significant research efforts within the earthquake engineering community. Strides were made in capturing the true inelastic seismic response of RC bridge piers, and …
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Dynamic behaviour of curved cable-stayed bridges
During the last decades, curved cable-stayed bridges have been regularly accepted due to their ability to cross long spans, for aesthetic reasons because of their enhanced geometric configurations and to the reduced costs involved in the bridge and roof construction. However, such structures are …