CAJ | 학술논문

文章提出在正交异性钢桥面板上铺设刚性基层的正交异性钢‐混凝土组合桥面板结构，并依托广东某曲塔曲梁钢混混合梁斜拉桥，采用有限元分析方法，重点研究了该组合桥面板在车轮荷载作用下3个关注点应力及对应的应力集中系数，并比较分析了刚性基层厚度和弹性模量对关注点应力及应力集中系数的影响。得出如下结论：铺设刚性基层的正交异性钢‐混凝土组合桥面板刚度明显提高，轮压荷载下关注点应力降低，且关注点③处应力降幅较其他2个关注点小；铺设刚性基层能降低关注点①和关注点②处应力集中系数，但是关注点③处应力集中系数反而提高；刚性基层厚度增加，关注点应力值降低，但应力集中系数增大；刚性基层弹性模量增加能降低组合桥面板极值应力及关注点应力，降低关注点应力集中系数，但刚性基层自身拉应力增加。
문장제출재정교이성강교면판상포설강성기층적정교이성강‐혼응토조합교면판결구，병의탁엄동모곡탑곡량강혼혼합량사랍교，채용유한원분석방법，중점연구료해조합교면판재차륜하재작용하3개관주점응력급대응적응력집중계수，병비교분석료강성기층후도화탄성모량대관주점응력급응력집중계수적영향。득출여하결론：포설강성기층적정교이성강‐혼응토조합교면판강도명현제고，륜압하재하관주점응력강저，차관주점③처응력강폭교기타2개관주점소；포설강성기층능강저관주점①화관주점②처응력집중계수，단시관주점③처응력집중계수반이제고；강성기층후도증가，관주점응력치강저，단응력집중계수증대；강성기층탄성모량증가능강저조합교면판겁치응력급관주점응력，강저관주점응력집중계수，단강성기층자신랍응력증가。
The orthotropic steel‐concrete composite bridge deck with rigid base is put forward .Based on a steel‐concrete hybrid girder cable‐stayed bridge with curved tower and beam located in Guang‐dong ,the stress values and stress concentration factors of three stress concerns of this type of deck under the wheel load were researched with finite element analysis method ,and the influences of the thickness and elastic modulus of rigid base on the stress values and stress concentration factors of the stress concerns were analyzed .The results showed that the stiffness of orthotropic steel‐concrete com‐posite bridge deck with rigid base was improved obviously ,and the stress values of the stress concerns were all dropped under the wheel load ,and the drop degree of the third stress concern was smaller than those of the other two concerns ;setting rigid base could reduce the stress concentration factors of the first and second stress concerns ,but the stress concentration factor of the third stress concern was improved ;the thicker the rigid base ,the smaller the stress value of the stress concerns ,but the grea‐ter the stress concentration factor ;improving the elastic modulus of the rigid base would reduce the stress value and the stress concentration factor of the composite bridge deck ,but the tensile stress val‐ue itself would increase .