The external prestressing method was developed to improve the load carrying capacity of concrete bridges damaged by ageing or other environmental factors. Therefore, it is necessary examine performance structure before and after strengthening, verification confirmation actual strengthening effect should be preceded. However, for reasons such as securing deteriorated absence design data, an brid...

Purpose: There are many bridges being constructed in Nepal. Brides of different types like Bailey truss, cable stayed, RCC Arch, pre-stressed, Slab, T-Beam, Steel Box, Stone masonry arch, suspension, and suspended tendered at present Most the T-beam Prestressed bridges. It has been found need to carry out research develop logical price adjustment coefficient ranges for contracts make provision ...

The track smoothness of high-speed railroads is severely limited to ensure train performance. concrete continuous girder bridge deformed influence the decks and caused by creep bulge. There a need research impact beam on dynamical response operation safety. This paper used Midas software calculate long-term deformation large-span prestressed bridges under shrinkage. train-bridge coupled system ...

Seven state-of-the-art machine learning techniques for estimation of construction costs reinforced-concrete and prestressed concrete bridges are investigated in this paper, including artificial neural networks (ANN) ensembles ANNs, regression tree (random forests, boosted bagged trees), support vector (SVR) method, Gaussian process (GPR). A database design characteristics 181 prestressed-concre...

Spliced joints are used widely in retrofitting traditional timber structures, especially in heritage conservation applications where as much original material as possible needs to be retained. However, in practice this method is mainly applied based on experience, and there is a lack of understanding and quantification of the mechanical behaviour of retrofitted timber members. This paper presen...

4 The long-term assessment of large and complex civil infrastructures, such as 5 prestressed concrete bridges, based on Finite Element (FE) modelling remains a 6 challenging task. The construction process, the influence of erection methods, the 7 characterization of concrete properties, geometric accuracy and environmental 8 conditions are key factors involved in the development of robust FE mo...