北京建筑大学学报
北京建築大學學報
북경건축대학학보
Journal of Beijing Institute of Civil Engineering and Architecture
2015年
2期
19-22
,共4页
郭祎%王毅娟%王健
郭祎%王毅娟%王健
곽의%왕의연%왕건
薄壁箱梁%板单元%剪力滞%宽跨比%高跨比%应力
薄壁箱樑%闆單元%剪力滯%寬跨比%高跨比%應力
박벽상량%판단원%전력체%관과비%고과비%응력
thin-walled box girder%plate element%shear lag%wide span ratio%height-span ratio%stress
通过对不同宽跨比的简支薄壁宽箱梁建立空间板单元模型，对比在恒载作用下跨中剪力滞效应的计算结果，讨论B/L=0.5作为宽窄箱梁工程界定的可靠性.进一步研究梁高对宽箱梁横向受力的影响，进而提出以剪滞系数控制宽窄箱梁工程界定的依据，希望能为工程设计提供参考.
通過對不同寬跨比的簡支薄壁寬箱樑建立空間闆單元模型，對比在恆載作用下跨中剪力滯效應的計算結果，討論B/L=0.5作為寬窄箱樑工程界定的可靠性.進一步研究樑高對寬箱樑橫嚮受力的影響，進而提齣以剪滯繫數控製寬窄箱樑工程界定的依據，希望能為工程設計提供參攷.
통과대불동관과비적간지박벽관상량건립공간판단원모형，대비재항재작용하과중전력체효응적계산결과，토론B/L=0.5작위관착상량공정계정적가고성.진일보연구량고대관상량횡향수력적영향，진이제출이전체계수공제관착상량공정계정적의거，희망능위공정설계제공삼고.
Based on the different width span ratio of simply supported thin-walled box girder the space plate element model is established, and compared with the calculation results under the action of dead load across the shear lag effect, the B/L=0. 5 as the width of box girder to define reliability is discussed. Furthermore the engineering definite basis using shear lag coefficient to control wide-narrow box girder is put forward. Hopefully it can provide reference for engineering design.
