The most unfavorable earthquake excitations were investigated, in which geometric non-linearity and material non-linearity were all taken into account. 摘要同時(shí)考慮幾何非線(xiàn)性與材料非線(xiàn)性，對單層球面網(wǎng)殼在地震作用下結構的最不利荷載進(jìn)行分析。
Nonlinear analysis method on the mechanical behavior of preflex composite beams was established with the nonlinear stress-strain curves of materials. 摘要采用材料非線(xiàn)性本構關(guān)系研究預彎組合梁的受力行為，建立預彎組合梁從預彎鋼梁加荷到結構破壞的非線(xiàn)性全過(guò)程分析方法。
