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Articles 31 - 38 of 38
Full-Text Articles in Engineering
Site Specific Modelling Of Traffic Loading On Highway Bridges, Bernard Enright, Eugene J. Obrien
Site Specific Modelling Of Traffic Loading On Highway Bridges, Bernard Enright, Eugene J. Obrien
Conference papers
Accurate traffic loading models based on measured weigh-in-motion (WIM) data are essential for the accurate assessment of existing bridges. Much work has been published on the Monte Carlo simulation of single lanes of heavy vehicle traffic, and this can easily be extended to model the loading on bridges with two streams of traffic in opposing directions. However, a typical highway bridge will have multiple lanes in the same direction, and various types of correlation are evident in measured traffic, such as groups of very heavy vehicles travelling together and heavy vehicles being overtaken by lighter ones. These traffic patterns affect …
Management Strategies For Special Permit Vehicles For Bridge Loading, Bernard Enright, Eugene J. Obrien
Management Strategies For Special Permit Vehicles For Bridge Loading, Bernard Enright, Eugene J. Obrien
Conference papers
An examination of weigh-in-motion data collected recently at sites in five European countries has shown that vehicles with weights well in excess of the normal legal limits are found on a daily basis. These vehicles would be expected to have permits issued by the responsible authorities. It can be seen from the measurements that most of them are travelling at normal speeds. Photographic evidence indicates that, while many are accompanied by an escort vehicle, normal traffic is flowing alongside in other lanes. As European freight volume grows, the frequency of these special vehicles can be expected to increase. Hence, the …
Developing A Cloud Integrated Life Cycle Costing Analysis Model Through Bim, Alan Redmond, Alan V. Hore, Roger West
Developing A Cloud Integrated Life Cycle Costing Analysis Model Through Bim, Alan Redmond, Alan V. Hore, Roger West
Conference papers
Advancing interoperability between design team applications has been a major challenge for advocates of open standards. The buildingSmart alliance and Open Geospatial Consortium Inc in the U.S. have developed and implemented an Architecture, Engineering, Construction, Owner Operator, Phase 1 Testbed that streamlines communications between parties at the conceptual design phase to establish an early understanding of the tradeoffs between construction cost and energy efficiency. The results of this Testbed combined with an on-going collaborative R&D project ‘Inpro’ co-funded by the European Commission to identify business and legal issues of Building Information Modeling in construction were used as theoretical propositions underlying …
Comparison Of Indian Ppp Construction Industry And European Ppp Construction Industry: Process, Thresholds And Implementation, Louis Gunnigan, Renuka Rajput
Comparison Of Indian Ppp Construction Industry And European Ppp Construction Industry: Process, Thresholds And Implementation, Louis Gunnigan, Renuka Rajput
Conference papers
Abstract Since the 1990’s, there has been a rapid rise of Public Private Partnerships (PPPs) across the world. Governments in developing as well as developed countries are increasingly using this procurement method to bridge the much needed infrastructure gap. PPPs are seen as an important tool for producing an accelerated and larger pipeline of infrastructure investments, and catching up with the infrastructure deficit. Arguably, this is why developed and especially developing countries are very keen on PPP models. This paper will compare the PPP procurement process followed in Europe compared to India and presents a thorough review of literature on …
Social Enterprise: An Overlooked Approach To Promoting Sustainable Economic Regeneration, Gerard Doyle
Social Enterprise: An Overlooked Approach To Promoting Sustainable Economic Regeneration, Gerard Doyle
Reports
Across Europe, social enterprises are making a significant impact on communities, particularly those blighted by high levels of unemployment, poverty and disadvantage. According to the European Commission, they represent 2 million enterprises (i.e. 10 per cent of all European businesses) and employ over 11 million paid employees (the equivalent of 6 per cent of the working population of the EU). Social enterprises are present in almost every sector of the economy, such as banking, insurance, agriculture, craft, various commercial services, and health and social services. The benefits of social enterprises are many, but in economic terms, they can support the …
Apartment Living And The Multi-Unit Developments Bill 2009, Lorcan Sirr
Apartment Living And The Multi-Unit Developments Bill 2009, Lorcan Sirr
Articles
No abstract provided.
Characteristic Dynamic Increment For Extreme Traffic Loading Events On Short And Medium Span Highway Bridges, Eugene J. Obrien, Daniel Cantero, Bernard Enright, Arturo González
Characteristic Dynamic Increment For Extreme Traffic Loading Events On Short And Medium Span Highway Bridges, Eugene J. Obrien, Daniel Cantero, Bernard Enright, Arturo González
Articles
More accurate assessment of safety can prevent unnecessary repair or replacement of existing bridges which in turn can result in great cost savings at network level. The allowance for dynamics is a significant component of traffic loading in many bridges and is often unnecessarily conservative. Critical traffic loading scenarios are considered in this paper with a model that allows for vehicle-bridge interaction and takes into account the road surface condition. Characteristic dynamic allowance values are presented for the assessment of mid-span bending moment in a wide range of short to medium span bridges for bi-directional traffic.