In order to accurately calculate the cross-sectional stresses and deflections of improved composite box girder with corrugated steel webs, control differential equations boundary conditions are established based on energy variational principle, taking into account effects web properties, shear lag, deformation. A cantilever is used as a numerical example. The influence width span ratio bending ...

This study aims to provide an effective method the behavior of a steel–concrete composite deck. First, structural characteristics deck and challenges arising in computational analysis structure using general software are described. Then, LPGE element that combines plate girder into one conveniently construct model with high computation efficiency is proposed. Based on principle multivariate fie...

Introduction Recurrent or secondary caries develops at the margin of restorations and causes restorative failure. We conducted this study to compare the performance of Phosphor Storage Plate (PSP) and Cone Beam Computed Tomography (CBCT) scan in detecting buccal recurrent caries under amalgam and composite resin restorations. Materials and Methods Class V cavities were prepared on the buccal...

In this study, the optimisation design problem of steel-concrete composite sections in simple girder bridges is developed. Design variables including thickness desk and dimensions section are discrete to reflect realistic works. The total cost steel objective function that minimised. requirements geometry, load-carrying capacity, deformation provided TCVN 11823:2017 standard used as constraints...

This paper has evaluated the bending performance of a novel prefabricated MVFT steel-concrete composite girder. 9 meters pilot girder was analyzed by validated finite element model. In test, height web, length grouted concrete in and net spacing between webs were parametrically modeled to discuss their effect strength. An ultimate strength formula been obtained, which based on regression parame...

In this paper, a three dimensional analysis is performed to investigate the static instability of long-span cable-stayed bridges due to wind loading. Cables made of carbon fiber composite cable (CFCC) are studied. Nonlinearity due to displacement-dependent wind loading is considered. A 1400meter cable-stayed bridge model is used to investigate the static behavior of bridges with both steel and ...