初始挠度 meaning in English

initial deflection

Accounting for the effects of imperfection and large displacement of arch , an approach for the stability analysis of arch bridge is presented ， and a program is developed to predict the nonlinear buckling of arch the elastic lateral stability of the jiefang arch bridge in guangzhou during the construction phases and operating periods after its completion is analyzed the results show that the effects of initial deflection and large displacements on the critical load of lateral stability are significant , and that once the initial deflection and large displacement are taken into account , the values of the safety factor are smaller than those obtained by linear buckling analysis
考虑拱肋初始挠度等缺陷的影响，采用杆系结构大位移分析的有限元方法，建立了拱桥非线性稳定的计算方法，并编制了相应的计算程序文中计算了解放大桥钢管混凝土拱桥在施工阶段及成桥后运营期间的弹性侧倾稳定结果表明：考虑拱肋初始挠度和结构大位移影响后，拱桥的非线性侧倾稳定安全系数比按线性稳定计算值低