Research On Mechanical Performance And Support Design Of L Continuous Beam Bridges

. Based on the research status at home and abroad based on the collection, summary, summarizes the research problem of curve beam bridge, special-shaped bridge and its progress. A detailed analysis of the analysis of continuous curved girder bridge with L shaped section continuous beam bridge, support internal force of vertical stress, horizontal reaction force calculation. In a combination of curved girder bridge with a L shaped section continuous beam bridge, analyzes its stress characteristics and reasonable support setting mode. The main research contents are as follows:1Characteristic of stress analysis of curved continuous beam bridge, the stress performance curve continuous beam bridge for bending and torsion coupling is strong, inner and outer box girder stress is not uniform, continuous curve beam bridge will produce radial horizontal force, curve continuous beam performance for the shear lag effect of strong.2Taking a four-span continuous curved girder bridge as the background, a finite element model is built by using the single beam method, analysis of the dead load, live load, temperature effect of curved girder bridges under the action of internal force and bearing force.3On a four-span continuous curved girder bridge in different bearing eccentricity under the condition of constant load, live load bearing vertical stress analysis. In the analysis of all kinds of loads of supporting force arrangement, the bearing arrangement way better.4The grillage method to establish space finite element model, the L type continuous beam bridge under dead load, live load, temperature effect of curved girder bridges under the action of internal force and bearing force. In the analysis of L based on continuous beam, through the analysis of all kinds of bearings bearing arrangement under the force of a detailed comparison, the bearing arrangement design scheme more reasonable.5The L continuous girder bridge in the design and the general curve continuous beam bridge is analyzed, both in the span arrangement, beam design, layout, arrangement of bearings and so on are different.