非线性结构地震响应的神经网络算法.

许泽坤, 陈隽 - Engineering Mechanics/Gongcheng Lixue, 2021 - search.ebscohost.com
提出一种基于长短期记忆(long short-term memory, LSTM) 神经网络模型计算非线性结构地震
响应的新方法, 采用单向多层堆叠式LSTM 架构, 并借助滑动时间窗实现递推计算 …

Neural network algorithm for nonlinear structural seismic response

XU Ze-kun, C Jun - 工程力学, 2021 - engineeringmechanics.cn
A new method based on the long short-term memory (LSTM) neural network model is
proposed for calculating seismic responses of nonlinear structures. It adopts a unidirectional …

高堆石坝面板随机动力分析和抗震效果研究

徐斌, 荣卓, 庞锐, 周扬 - 水力发电学报, 2023 - slfdxb.cn
强震作用下, 高面板堆石坝面板中上部会产生较大顺坡向拉应力, 可能导致面板开裂.
已有研究表明, 针对顺坡向拉应力较大的区域设置永久水平缝可有效降低该应力 …

主余震序列作用下边坡位移响应及地震动参数相关性分析.

殷京科, 李典庆, 杜文琪 - … Mechanics/Gongcheng Lixue, 2023 - search.ebscohost.com
边坡容易在地震作用下丧失稳定性, 引发滑坡等次生灾害, 造成严重的人员伤亡和经济损失.
目前, 关于边坡在地震作用下的位移响应研究主要关注主震作用, 而没有充分考虑余震作用的 …

[HTML][HTML] 考虑抗力非平稳劣化和荷载相关性的桥梁可靠性分析

金聪鹤, 钱永久, 徐望喜, 黎璟 - 工程力学, 2024 - pubs.cstam.org.cn
桥梁结构在服役期间受到环境侵蚀和均值增大的相关荷载作用, 承载力降低, 安全状况不容乐观.
为了准确评估服役桥梁在剩余使用寿命内的安全性能, 需要考虑结构抗力劣化的非平稳特性以及 …

Correlation analysis of slope displacement response and seismic parameters due to main-aftershock sequences

J YIN, D LI, W DU - Engineering Mechanics, 2023 - engineeringmechanics.cn
Slopes are vulnerable during strong earthquakes, and earthquake-induced landslides have
caused serious casualties and economic loss. At present, researchers mainly focused on the …

[HTML][HTML] Fragility Analysis of Masonry Structures Subjected to Random Sequential Ground Motions

J Pan, L Cao, Y Zhang, J Shen - Buildings, 2024 - mdpi.com
In this study, a fragility analysis of masonry structures is conducted using a random
sequential ground motion model. Initially, the relationship between a mainshock and its …

概率密度演化方程差分格式的计算精度及初值条件改进.

朱志辉, 刘禹兵, 高雪萌, 周高扬… - Engineering Mechanics …, 2022 - search.ebscohost.com
由于随机荷载作用下工程结构响应的一阶时间导数往往大于结构响应自身,
采用仅满足确定性结构响应分析计算精度的时间步长求解概率密度演化方程(Probability density …

BRIDGE RELIABILITY ANALYSIS CONSIDERING NON-STATIONARY DEGRADATION OF RESISTANCE AND LOAD DEPENDENCY

C JIN, Y QIAN, W XU, J LI - Engineering Mechanics, 2024 - engineeringmechanics.cn
The bridge structure is subjected to environmental erosion and increasing correlated load
impacts during its service life. These factors cause bridge resistance deterioration and make …

The calculation precision of probability density evolution equation difference scheme and the improvement of initial condition

Z ZHU, Y LIU, X GAO, G ZHOU… - Engineering …, 2022 - engineeringmechanics.cn
Since the first time derivative of engineering structure response under random load was
often larger than the structure response itself, if the time step which only meets the precision …