Improved interval static analysis for uncertain structures

This paper presents an improved interval static method to solve the uncertain' problems, where the structural parameters are assumed to be expressed as interval parameters. Using the interval extension of functions, the new method can be obtained. It can be seen that, using the new interval static analysis method, more accurate interval values are obtained about the structural static response. The present method is implemented for a continuous beam. The numerical results are compared with those obtained by the method presented in reference. The example of numerical analysis shows that the present method is more accurate in predicting the influence of the structural uncertainties on the structural static response.