Research on Linear Control for Cast-in-place Continuous Box Girder with Multi-ramp Variable Cross-section Support Method
Taking a bridge project as an example,this paper analyzes the factors affecting the linear shape of cast-in-place continuous box girder.On this basis,the linear control method in the construction process of cast-in-place continuous box girder is studied,including vertical and horizontal bridge linear control.After the engineering activities such as structural camber calculation,girder linear calculation,support preloading and monitoring,the targeted girder linear control measures are adopted,which effectively solves the problem of poor linear shape in the construction of cast-in-place continuous box girder with variable cross-section support method,successfully completes the construction activities of cast-in-place box girder and ensures the rationality of box girder linear shape,and achieves good construction effect.
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