Towards actual brazilian traffic load models for short span highway 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...
متن کاملLive 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 کاملOptimal-velocity Traffic Models at Highway Bottlenecks
A bottleneck simulation of road traffic on a loop, using the deterministic cellular automata (CA) Nagel-Schreckenberg model with zero dawdling probability, reveals three types of stationary wave solutions. They consist of i) two shock waves, one at each bottleneck boundary, ii) one shock wave at the boundary and one on the “open” road, and iii) the trivial solution, i.e. homogeneous, uniform fl...
متن کاملLong Span Bridges
Population growth followed by the dramatic increase and demand for new services created an urgent and overwhelming need for infrastructures of civil engineering structures. However, the current infrastructure work using various techniques and conventional materials for construction will not solve the traditional and continuous deterioration of concrete structures due to corrosion of steel. One ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Revista IBRACON de Estruturas e Materiais
سال: 2015
ISSN: 1983-4195
DOI: 10.1590/s1983-41952015000200005