Construction Control Analysis Of Curve Continuous Rigid Frame Bridge

With the devolopment of traffic enterprise in our country, more and more curved continuous rigid flame bridges have been constructed because of its predominance of compatibility and shortening road-length. As the coupling characteristics of bending moment, shear force and torsional moment makes internal force and displacement of curved continuous rigid flame bridge more complicated than that of continuous rigid flame bridge, properly studying the construction control is significative for design and construction control. Taking LiangTaihe Bridge on the Yichang to Badong section of Yiba Speedway in Hubei Province as the engineering background, the main research work is summarized as follows:First, by collecting informations of Curved-beams and Bridge Construction Control in and abroad, this thesis systematically summarized the development of curved continuous rigid flame bridge, as well as the current situations of Curved-beam theory and Bridge control system.Second, applying the FEM softwear of MIDAS/CIVIL, two FEM models of LiangTaihe Bridge with space beam elememt are established by considering whether curvature effects or not to analyze the behavior of structure.Third, combined measured data by the author with theoretical data from the two FEM models, the difference between these two models are obtained, and which FEM model suits better is analyzed.Fourth, under the prerequisite condition of just changing curvature, the author use the same method to establish several models of curved continuous rigid flame bridge, the influence of curvature on displacement and internal force of curved continuous rigid flame bridge are obtained, providing references for construction control of the same kind bridge.Last, based on the measurement of temperature distribution field of LiangTaihe Bridge due to solar radiation, the fitting curves of temperature difference distribution of solid piers are obtained.