Predicting the Bounds of Vehicle-Induced Bridge Responses Using the Interval Analysis Method
| Autor: | Qiling Zou, Lu Deng, Chao Jiang |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
business.industry 020101 civil engineering 02 engineering and technology Building and Construction Road roughness 0201 civil engineering Interval arithmetic symbols.namesake 020303 mechanical engineering & transports 0203 mechanical engineering Control theory Deflection (engineering) Taylor series symbols Bending moment Probability distribution Structural health monitoring business Random variable Civil and Structural Engineering |
| Zdroj: | Journal of Bridge Engineering. 21 |
| ISSN: | 1943-5592 1084-0702 |
| DOI: | 10.1061/(asce)be.1943-5592.0000911 |
| Popis: | A method for predicting the bounds of vehicle-induced bridge responses with uncertain bridge and vehicle parameters is presented. The uncertainties in the parameters of the bridge and vehicle are represented with interval variables instead of conventional random variables with known probability distributions. First, a three-dimensional vehicle–bridge interaction (VBI) system, which has no closed-form solution and can account for road roughness, is established. Then, by introducing the interval analysis method (IAM) based on the first-order Taylor series expansion, the expressions of the bridge responses, including displacement and bending moment at the midspan, can be explicitly given as functions of the interval parameters, and the lower and upper bounds of the bridge responses are determined by the particle swarm algorithm instead of direct interval arithmetic to avoid excessive overestimation of the responses. The subinterval technique can also be adopted to improve the accuracy of the IAM. A n... |
| Databáze: | OpenAIRE |
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