摘要
以宽跨比0.625的装配式简支T梁为依托,分别采用梁格法和实体单元建模方式分析了中载和偏载两种工况下跨中截面应力及挠度分布,得出小宽跨比宽桥梁格法建模是满足精度的.利用梁格法反算横向分布系数与传统理论G-M法进行对比,得出G-M法对于中梁适用,而对于边梁误差较大的结论,在宽桥设计计算时应重点考虑.
The beam-grid method and the solid element method are used to analyze the stress and deflection distribution of the mid-span section under the loading condition and the eccentric load condition,respectively,based on the simply supported T-beam with the span ratio 0.625.The beam grid method is to meet the precision for modeling of wide bridge in small wide-span ratio.It is found that G-M method is suitable for middle beam,while for the conclusion that the side beam error is large,it should be considered in the design of wide-span bridge again when the lateral load distribution coefficient is compared with the traditional theoretical G-M method by using beam grid numerical method.
出处
《沈阳大学学报（自然科学版）》
CAS
2017年第3期229-232,共4页
Journal of Shenyang University：Natural Science
关键词
桥梁工程
宽跨比
T梁
宽桥
横向分布
梁格法
bridge engineering
width-span ratio
T-beam
wide bridge
lateral load distribution
beam grid method
