In this study, three-dimensional numerical analyses were carried out to investigate the effects of reinforcement pullout resistance including facing connection strength on behavior geosynthetic-reinforced soil (GRS) piers under a service load condition. Three different investigated in which simulated levels resistance. Each pier had two cases with stiffness J and spacing Sv but same ratio J/Sv....

The complex flow structure around bridge piers is challenging for both experimental and numerical studies. Therefore, investigating the capabilities of Computational Fluid Dynamics (CFD) tools in resolving mechanism sediment entrainment into out scour hole remains a task. In this study, depth an oblong pier bed shear stress distributions time space were numerically investigated using tool Sedim...

This paper presents the use of genetic programming (GP) as a tool to predict pier scour depths based on clear-water conditions of laboratory measurements by past researchers. Four main dimensionless parameterspier width, approaching flow depth, threshold flow velocity, and channel open-ratio are considered for predicting the scour depth. The performance of the GP equation is verified by compa...

V. W. Y. Tam · L. Y. Shen · Risk Management for Contractors in Marine Projects ... · pp 403-410 Introduction Marine projects are one of major work in the Hong Kong construction industry. More than forty marine projects are in progress by the Hong Kong government (see Table 1) (Hong Kong Government, 2007), which include bulkheads, seawalls, foundation piles, docks, inspections, piers dredging an...

We present a work-in-progress on distributed planning, which relies on the “planning as satisfiability” paradigm. It allows for multiagent cooperative planning by joining SAT-based planning and a particular approach to distributed propositional satisfiability. Each agent is thus enabled to plan on its own and communicate with other agents during the planning process, in such a way that synchron...

Abstract The paper presents the results of vibration tests carried out on pedestrian bridge accessing Civita di Bagnoregio, Italy. structure was in bad health condition. external beams were damaged due to deterioration exacerbated by combined actions rain and wind. circular piers also with several cracks where concrete cover spliced reinforcement bars exposed. analysis presented focuses highest...

Previous research has shown that local scour at bridge piers is severely increased by the accumulation of woody debris around piers. However, due to unavailability accurate information regarding characteristics formed jams, shape and dimensions accumulations tested in previous laboratory experiments have had be assumed. This article provides an assessment debris-induced based on recently availa...

This study aims to investigate the seismic behavior of concrete-filled steel tubular (CFST)-laced piers; after verifying model through engineering tests, simplified finite element models (S-FEM) and refined ones (R-FEM) with CFST-laced piers are developed in this manuscript, respectively. Through comparison, it is found that S-FEM can effectively improve analyzing efficiency while meeting requi...

Tall piers are essential components of the earthquake resisting system bridges. The dynamic behaviour tall differs significantly from that short due to a number factors, such as their high flexibility and inertia. This paper aims quantify influence axial loads higher order modes on seismic response bridges provide results useful for more informed design assessment. For this purpose, an analytic...

Bridges are built to facilitate transportation between the two banks of rivers and waterways. They usually supported by piers with geometric shapes that differ from one bridge another, such as a complex pier. Due intersection water flow, many vortices generated, causing local scour around piers. Local is affected factors, including geometry other hydraulic factors. In this study, number laborat...