Investigation On Static And Dynamic Characteristics Of Pre-stressed Box-girder

Along with the advance in technology, the massive new materials, new technical are emerging under the new theory impetus. The pre-stressed steel structure achieved fast development, its stress is reasonable, it also saves the material, the form of the construct is diverse, modeling novel, the application is widespread, it become the newest achievement in the construction domain. The diverse pre-stressed steel tensioning structure system to appear on the market unceasingly, has proven the advanced, science nature and infinite charm of the subject. The new pre-stressed steel structure research will certainly to be able to promoting society's development.In this article, the new combined form is used of tendons and box-girder; it carries on the non-linear finite element analysis to the big span pre-stressed box-girder. Using the pre-stressed tendons is not only able to extend the loading-force, but enhance rigidity of the construct which realizes the great span steel girder have the count for much significance, the construct may increase the span of the steel girder, reduce the steel girder displacement. Moreover, using the pre-stressed tendons is able to economize the material, reduce the construct cost and Speed the process of working. Thus, application of the great span pre-stressed girder will have the practical significance regarding the project application. This article has mainly done following several aspects research work to this structure: Using ANSYS finite element analysis software and the experiment to the pre-stressed box-girder distortion research, studying the influence of pre-stressed box-girder distortion performance several factors;...