CAJ | 학술논문

提出了通过建立ABAQUS三维有限元模型,将计算弯沉盆与实测弯沉盆对比,得到较为精确的计算脱空参数的方法,并计算了机场水泥混凝土道面板底不同脱空程度对道面板荷载应力的影响.计算结果表明:有限元软件计算道面弯沉中,以静载代替脉冲荷载对计算结果影响很小;脱空区域基础与面层并非完全脱离,其反应模量较原值有一定折减;在严重脱空区域,道面荷载应力较未脱空时可增大80%.
제출료통과건립ABAQUS삼유유한원모형,장계산만침분여실측만침분대비,득도교위정학적계산탈공삼수적방법,병계산료궤장수니혼응토도면판저불동탈공정도대도면판하재응력적영향.계산결과표명:유한원연건계산도면만침중,이정재대체맥충하재대계산결과영향흔소;탈공구역기출여면층병비완전탈리,기반응모량교원치유일정절감;재엄중탈공구역,도면하재응력교미탈공시가증대80%.
Based on the ABAQUS 3D - FEM model and the comparison of the test deflection basin curve and the calculated deflection basin curve,a more precise method is proposed to calculate void parameters.An analysis is made of the influence of different voids to loading stresses of the airport cement concrete pavement.The result shows that in finite element software calculation pavement deflection,the replacement of pulse load by static load has little effect on the calculation results,the subgrade of void region is not completely divorced from the surface,and its response modulus has certain discount from original value,influence of void to loading stresses of airport cement concrete pavement reaches to 80%.