Curve Rigid Frame Bridge Force Influence Factors Analysis And Research

The curved girder Bridges with the rapid development of social economy, generallyappear in the highway, high-speed railway, urban expressway, and other various grades ofbridge engineering. Due to some mechanical properties of its own, the stress of the curvedgirder is much more complicated than straight bridge. In practical engineering was also seento master is not comprehensive and lead to stress its collapse, causing casualties and hugeproperty losses. Therefore, the curve beam bridge analysis and study of mechanicalperformance, can be more comprehensive, accurately grasp its stress state, which has practicalreference value in design and construction.Through broad access and organize documents, papers on the development situation andmechanical characteristics of curve beam bridge are introduced; On the theory and analysismethod of forces of the curved girder Bridges are discussed in detail in this paper. Paper witha practical curve continuous rigid frame bridge as the research object, through the finiteelement analysis software Midas civil model, both the static and dynamic analysis of themechanical properties. Was studied in terms of static mechanics performance, under the actionof dead load of roof and floor of the inside and outside stress difference, curvature radius andcar arrangement position influence on internal force of the load. On dynamic mechanicalproperties, using the response spectrum method analyzed the curve beam bridge vibrationmode and natural frequency of vibration change, as well as the radius of curvature anddirection for internal force influence earthquake excitation.Through the above analysis and research, it is concluded that the different conditions ofcurved girder under different load of some regularity, which can be for the future of design,construction and provide reference for the control of diseases.