منابع مشابه
Live load model for highway bridges *
Load models are developed for highway bridges. The models are based on the available statistical data on dead load, truck loads and dynamic loads. The paper deals mostly with the static live load. The model is derived from truck surveys, weigh-in-motion measurements and other observations. Simple span moments, shears and negative moments are calculated for various spans. Extreme 75 year loads a...
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...
متن کاملFatigue Load Model for Highway Bridges in Heavily Loaded Areas of China
Fatigue is one of the main factors that cause the collapse of steel bridges. Anti-fatigue design therefore draws close attention all over the world. The design must have a fatigue load model based upon native traffic load conditions. But the Chinese steel bridge design specification does not include any fatigue load model for anti-fatigue design. So it is imperative to develop the model. This p...
متن کاملRecent Innovation for Concrete Highway Bridges
A new generation of concrete highway bridges has recently been built in Canada using new design concepts and advanced materials for reinforcing and prestressing concrete . This paper describes briefly the design and construction of three bridges. The first smart concrete highway bridge (Centre Street, Beddington Bridge, Calgary, Alberta) is prestressed by carbon fiber reinforced plastic (CFRP) ...
متن کاملVehicle Tracking Using Mobile Wireless Sensor Networks during Dynamic Load Testing of Highway Bridges
The development of structural health monitoring systems for bridge structures necessitates improvements in the understanding of vehicle-bridge interactions. Direct measurement of the complex coupling that naturally exists between vehicles and bridges is a challenging undertaking due to the limitations of existing sensor technologies. However, the emergence of wireless sensors in the field of st...
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ژورنال
عنوان ژورنال: Structural Safety
سال: 1993
ISSN: 0167-4730
DOI: 10.1016/0167-4730(93)90048-6