CAJ | 학술논문

以范蠡大桥为背景，建立全桥杆系有限元模型和空间异形钢梁柱连接节点有限元模型，并对其进行对比分析研究。结果表明，塔柱承受着轴力和弯矩作用，塔柱内侧板件承担了60%~65%的竖向压力；横梁在连接节点附近受到横向弯曲和扭转作用；梁柱连接节点内板件应力分布不均匀，节点内侧应力水平较高，但高应力水平区域范围较小，应力扩散较快，结构受力安全。板壳有限元方法计算梁柱连接节点处结构应力比杆系有限元方法的精度高。
이범려대교위배경，건립전교간계유한원모형화공간이형강량주련접절점유한원모형，병대기진행대비분석연구。결과표명，탑주승수착축력화만구작용，탑주내측판건승담료60%~65%적수향압력；횡량재련접절점부근수도횡향만곡화뉴전작용；량주련접절점내판건응력분포불균균，절점내측응력수평교고，단고응력수평구역범위교소，응력확산교쾌，결구수력안전。판각유한원방법계산량주련접절점처결구응력비간계유한원방법적정도고。
Based on the Fanli Bridge, the beam finite element model of the whole bridge and shell finite ele-ment of the pylon were constructed to analyze mechanical properties of the beam-column joint. The results show that the inner plates of pylon carry about 60% ~ 65% vertical pressures. Beams at the joint carry trans-versal bending and torsion. Stress distribution of plates in the beam-column joint is non-uniform. The inner plate stress is higher but the region of high level of stress is limited with fast stress dispersion. The structure is conservatively designed. Structural stress of the beam-column joint based on the finite element analysis by u-sing shell elements show higher accuracy than that by using the beam elements.