Characteristic dynamic traffic load effects in bridges
نویسندگان
چکیده
منابع مشابه
Characteristic traffic load effects from a mixture of loading events on short to medium span bridges
In recent years, highway bridge load assessment has been recognised as an area through which savings can be made by avoiding unnecessary bridge refurbishment and replacement. Load effects in bridges result from single truck crossings or multiple-truck presence events which are, statistically, not identically distributed. Conventional approaches fit statistical distributions to mixtures of non-i...
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It is vital to ensure highway structures to cater for increasing demand in transport capacity. This involves the precise estimation of structural load-carrying capacity to withstand potential maximum load effects in residual lifetime. The scope of this research thus addresses estimation of traffic load effect. Many different methods have been used to model extreme traffic load effects on bridge...
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Bridge codes adopt values for dynamic allowance in traffic load models that are necessarily conservative to cover for an entire range of bridges with different mechanical characteristics, boundary conditions, and the large number of uncertainties associated to the vehicle-bridge interaction problem. A further level of conservatism occurs due to the independent manner in which the governing stat...
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In this paper, we describe implementation of the Parallel Traffic Simulator which applies parallel algorithms and computer graphics in the field of traffic simulation. It simulates traffic behaviour at the individual vehicle level. Parallel environment used consists of a set of workstations connected in a network. Networked workstations make up a loosely coupled parallel computer architecture w...
متن کاملCalibration of a Congestion Load Model for Highway Bridges Using Traffic Microsimulation
For shortto medium-length bridges, the governing traffic loading scenario may be congested traffic. This paper presents the calibration of a congested traffic load model using traffic microsimulation. A range of bridge lengths, forms of construction, and load effects is considered. Different driving parameters and traffic composition are also considered. The influence of these parameters on the...
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ژورنال
عنوان ژورنال: Engineering Structures
سال: 2009
ISSN: 0141-0296
DOI: 10.1016/j.engstruct.2009.02.013