CAJ | 학술논문

为了准确把握地锚式悬索桥在施工阶段和运营阶段结构线形的变化，以某大跨悬索桥为例，采用有限元方法建立全桥三维仿真计算模型，分析了结构自重、温度、刚度、边界条件对桥梁线形的影响及规律．结果表明，自重和温度对桥梁线形影响较大，桥塔刚度的改变对悬索桥线形影响较小，改变索鞍处边界条件对悬索桥线形影响较小．
위료준학파악지묘식현색교재시공계단화운영계단결구선형적변화，이모대과현색교위례，채용유한원방법건립전교삼유방진계산모형，분석료결구자중、온도、강도、변계조건대교량선형적영향급규률．결과표명，자중화온도대교량선형영향교대，교탑강도적개변대현색교선형영향교소，개변색안처변계조건대현색교선형영향교소．
In order to accurately grasp variation situations of inner deflection for long-span suspension bridge during construction and running stage, the mechanical characteristics of this type bridge are studied. A bridge is taken as the studying case in this article. A three dimensional space finite element model is built with the large-scale finite element calculation program. The paper analyzes the effects of self-weight, temperatures, tiffness and boundary condition on the deflection. The results show that self-weight and temperatures have a greatest impact on the linear. Tiffness and boundary condition have a smaller impact on deflection. These results can provide reference for the construction of the bridge.