载初
载初-
研究了加固后截面相对受压区高度以及恒载初应变对外贴FRP加固RC、PC受弯构件加固效率的影响。
The effects of relative compression height and preexist strain on strengthening efficiency are studied .
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通过讨论了恒载初应力效应和几何非线性对大跨斜拉桥动力特性的影响，提出了基于敏感性分析和优化设计原理的有限元模型参数修正方法。
The effect of initial stress and geometrical non-linearity on dynamic characteristics of long span cable-stayed bridges is analyzed . bringing forward the parameter updating method for the finite element model based on sensitivity analysis and optimization design principle .