CAJ | 학술논문

由于2个方向的力学特征不同，构造正交异性桥面板计算比较复杂。为简化计算，文章提出一种构造正交异性桥面板计算的等效梁格解法。纵向等效梁格按照与原结构横截面中性轴位置、抗弯刚度、截面面积等效的原则，并且充分考虑横肋板对纵向抗弯刚度的影响，通过理论分析得到等效截面各部分尺寸参数的计算公式。横向梁格截面尺寸按照原结构横肋板的实际尺寸给出。对某一构造正交异性桥面板的局部稳定性进行研究，结果表明，等效梁格解法能够反映原结构的实际状态，得出的各等效参数真实可靠，对简化构造正交异性桥面板计算方法具有参考价值。
유우2개방향적역학특정불동，구조정교이성교면판계산비교복잡。위간화계산，문장제출일충구조정교이성교면판계산적등효량격해법。종향등효량격안조여원결구횡절면중성축위치、항만강도、절면면적등효적원칙，병차충분고필횡륵판대종향항만강도적영향，통과이론분석득도등효절면각부분척촌삼수적계산공식。횡향량격절면척촌안조원결구횡륵판적실제척촌급출。대모일구조정교이성교면판적국부은정성진행연구，결과표명，등효량격해법능구반영원결구적실제상태，득출적각등효삼수진실가고，대간화구조정교이성교면판계산방법구유삼고개치。
T he calculation method of orthotropic bridge deck is complex for the different dynamic char-acteristics in two directions .To simplify the calculation ,an equivalent beam grillage method is put forward .According to the principle of the same position of neutral axis ,the same bending stiffness and the same cross-section area as the actual section and fully considering the influence of the cross rib plate on the longitudinal bending stiffness ,the theoretical formula for the cross-section size of each part of the longitudinal equivalent beam grillage is obtained .The size of transverse equivalent beam grillage is given according to the size of the cross rib plate .The local stability of an orthotropic bridge deck is studied and the results show that the proposed equivalent method can reflect the actual status of the actual structure and the equivalent parameters are reliable .T he equivalent method has reference value for simplifying the calculation method of the orthotropic bridge deck .