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Ductile Concrete End-Diaphragms of Slab-on-Girder Concrete Bridges
(2022-01)
In this paper, the results of the proposed ductile precast concrete end-diaphragm beams for the transverse seismic resistance and protection of the substructure of slab-on-girder concrete bridges, tested at the facilities ...
Prestress losses in high performance lightweight concrete pretensioned bridge girders
(PRECAST/PRESTRESSED CONCRETE INST, 2005)
The purpose of this research was to determine the time-dependent behavior of high performance lightweight concrete and to examine how long-term behavior affects the prestress losses in high strength precast, prestressed ...
Análise da ligação entre estrutura existente e estrutura de alargamento de obras de artes especiais em pré-moldados
(Universidade Tecnológica Federal do ParanáCuritibaBrasilCurso de Engenharia CivilUTFPR, 2017-07-03)
This research deals with a bridge widening project in the state of Paraná, expanded with prefabricated reinforced concrete beams and molded slab at the site. The work has an emphasis on the study and analysis of the stresses ...
Experimental and Computational Evaluation of In-Span Hinges in Reinforced Concrete Box-Girder Bridges
(ASCE-AMER SOC CIVIL ENGINEERS, 2011)
During the last three decades, considerable research efforts have sought to improve the seismic design of California highway bridges. However, the in-span hinge (ISH) regions of concrete box girders have not been studied ...
Study of timber and concrete with rubber waste composite beams applied to bridges
(2015-01-01)
In order to overcome the hydrographic network, the landforms, and the most different types of barriers, many timber bridges were constructed around the world, especially in secondary roads where the raw materials (wood) ...
Estudo dos esforços atuantes em uma ponte em concreto armado
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilDepartamento Acadêmico de Construção CivilEngenharia CivilUTFPR, 2016-06-20)
Bridges are structures of extreme importance to the development of a region. Therefore, there is a need for a deeper study of the mechanical behavior, to seek faster, cheaper, durable and safer solutions. Based on this, a ...
Semantic segmentation model for crack images from concrete bridges for mobile devices
(Sage, 2020)
Computer vision algorithms are powerful techniques that can be used for remotely monitoring and
inspecting civil structures. Detecting and segmenting cracks in images of concrete bridges can provide
useful information ...