A field study utilizing simulated rainfall and bare plots 5.5m wide by 22m long was conducted to study the effectiveness of vegetated filter strips 4.6 and 9.2m long in
removing nutrients and sediments from agricultural ...
he paper describes a field trial of the use of a simple statistical ‘extrapolation' technique for the determination of design load effects in existing bridges. Deflections were measured directly using lasers in the Foyle ...
This paper highlights areas of inaccuracy in current modelling techniques for bridge decks with wide cantilevers. A 3-D grilllage model known as the upstand grillage is assessed by comparing its behaviour with that of a ...
WAVE (Weigh-in-motion of Axles and Vehicles for Europe) is a research
project, part-funded by the European Commission, with the objective of improving the
accuracy and performance of Weigh-in-Motion (WIM) technology. It ...
The paper describes the use of algebraic linear programming for the minimum weight design of steel portal frames subject to the constraints of the Kinematic Theorem of plastic collapse. Minimum weight design is a classic ...
WIM has developed greatly in the last ten years and confidence in the accuracy of recorded data has
increased significantly. Traffic data recently obtained from a number of representative European sites
are used to ...
For slab bridge decks with wide transverse edge cantilevers, the plane grillage analogy is shown to be an inaccurate method of linear elastic analysis due to variations in the vertical position of the neutral axis. The ...
This paper describes an experiment in which 2 independently developed bridge weigh-in-motion (WIM) systems are tested and compared, both for accuracy and durability. The systems, an Irish prototype still under development ...
This paper presents the formulation of a simple method for the prediction of the additional stresses induced in frame type integral bridges due to thermal expansion of the deck. These stresses are controlled to a large ...
This is the second part of a two-part paper which addresses the issue of accuracy in weigh-in-motion (WIM) systems. The first part develops the statistical background necessary for any system of accuracy classification ...
This paper describes a large scale test of six WIM systems and four additional sensors
on an urban roadway in Zürich, Switzerland. Gross weights from some thousands of
statically weighed vehicles were used to determine ...
The results of an experimental road research project are presented which demonstrate the existence of spatial repeatability and show patterns of axle impact forces along a pavement. As part of the project, a section of ...
Irish aggregates have a satisfactory history of service regarding alkali-aggregate reaction despite containing significant amounts of chert and use for a period in conjunction with cements of high alkali level. An investigation ...
This report gives results of some new studies performed to validate the European road traffic load model proposed by the Eurocode EC1. Weight in motion has developed greatly in the last ten years and confidence in the ...
This paper describes the simulation of free-flowing traffic across bridges to predict
the characteristic values for bridge load effects such as bending moment and shear
force. The results of these simulations are then ...
The multi-layer feed-forward neural network (MLFFNN) is applied in the context of river flow forecast combination, where a number of rainfall-runoff models are used simultaneously to produce an overall combined river flow ...
Traffic loading crossing a bridge is simulated to analyse the correlation between the worst static
and dynamic load case. The worst static cases are obtained through a Monte-Carlo simulation
using weigh-in-motion (WIM) ...
The depletion of natural resources, the requirement for sustainable development and environmental restrictions, such as those associated with the Kyoto Agreement, makes the re-use of waste materials increasingly important ...
A method is described for determining both the rate of heat generation and the time-dependent thermal properties of concrete so that the temperature development in a concrete section can be modelled. The method uses measured ...