CAJ | 학술논문

通过设定集中力作用下圆弧拱侧倾屈曲时的扭转和侧向位移函数，运用能量法，构造单拱结构集中力作用下的弯曲、扭转变形能和外力势能，首次推导了侧倾屈曲临界荷载解析解计算公式，并与有限元数值结果进行了对比分析，多组算例比对结果表明该侧倾屈曲临界荷载解析解与有限元数值解吻合良好，验证了计算公式的正确性。
통과설정집중력작용하원호공측경굴곡시적뉴전화측향위이함수，운용능량법，구조단공결구집중력작용하적만곡、뉴전변형능화외력세능，수차추도료측경굴곡림계하재해석해계산공식，병여유한원수치결과진행료대비분석，다조산례비대결과표명해측경굴곡림계하재해석해여유한원수치해문합량호，험증료계산공식적정학성。
By setting torsional and lateral displacement function of lateral buckling of circular arch under concentrated force,energy method is used to construct bending,twisting deformation and external force potential of single-arch structure,and the analytical solution formula of the circular arch buckling load is derived for the first time.Compared with the results obtained from FEM,it is verified that the an-alytical solution formulas presented in this paper is accurate sufficiently.