适用于工业化建造的组合梁负弯矩裂缝控制措施研究

Research on Control Measures for Cracks in Hogging Moment Area of Composite Beam using Industrial Construction Method

依照实际工程的材料参数、构件尺寸与施工工艺,运用空间梁单元有限元分析方法,结合工业化建造特点与要求,对组合梁负弯矩区裂缝控制措施进行分析研究,计算各种负弯矩裂缝控制措施的实际效果。得出了35m和45m标准跨径组合钢板梁负弯矩裂缝控制措施效果的定量分析结论,可以为同类型桥梁结构的设计、施工提供一定参考。

According to the material parameters,component size and construction technology of the actual project,using the finite element method of the space beam,combined with the characteristics and requirements of industrial construction,the crack control measures of the hogging bending moment zone of the composite beam and their actual effect are analyzed.Conclusions of the control effects of 35 m and 45 m standard span beams are obtained,which provides a reference for the design and construction of the same type bridge.