The paper studies the relation between the section rigidity and the service time of the RC bridge under the composite effect of the expansion of cracks and the whole or local corrosion.
分别研究了钢筋混凝土桥梁在整体腐蚀和局部腐蚀同裂缝扩展的组合效应下截面刚度与服役时间关系。
The mechanics model of whole process of reinforced concrete beam section flexural rigidity is founded, based on the theoretical analysis the corresponding numerical calculation program is developed.
建立了钢筋混凝土梁截面抗弯刚度全过程分析的力学模型，在理论分析的基础上编制了相应的数值计算程序。
It can calculate the torsion rigidity of the variable section step-shaft simply using the general formula for calculating the same diameter shaft which can be found directly in material mechanics.
从而可利用材料力学中求解等直径圆轴扭转刚度的一般公式简便地求出变截面阶梯轴的扭转刚度。
The follow-up unit is the essential structure of the rack section of modal analysis test suspension system, its rigidity and intensity directly influence overall performance of system.
随动部件是模态悬挂测试系统机架部分的关键结构，其刚度和强度直接影响了整个系统的性能。
The rigidity calculation of the closed thin - walled section rod structure of aircraft is carried out by using finite element method and the result tallies with the full - scale test value well.
利用有限元法对飞机闭合薄壁剖面杆结构进行刚度计算，其结果与全尺寸试验值吻合较好。
The rigidity calculation of the closed thin - walled section rod structure of aircraft is carried out by using finite element method and the result tallies with the full - scale test value well.
利用有限元法对飞机闭合薄壁剖面杆结构进行刚度计算，其结果与全尺寸试验值吻合较好。
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