崔济东的博客-JiDong Cui's Blog

Abaqus / FEM Analysis of Structural Components [构件有限元模拟] / Finite Element Method [有限元法] / Midas / My Software [我的软件] / Programming [编程] / Structural Analysis [结构分析] / Structural Design [结构设计] / Structural Engineering [结构工程]

[Midas Gen][ABAQUS][Midas2Abaqus] Midas Gen Verification Example Eigen-9: Eigenvalue and static analysis of a 5- level pyramid building under lateral loads. [ Midas Gen 验证实例 Eigen-9: 5层金字塔结构的特征值分析及侧向水平力静力分析]

注释 ( Comments ) ( 如果您发现有错误，欢迎批评指正。邮箱：jidong_cui@163.com . 如果您喜欢这篇博文，请在上面给我点个赞吧！ ( If you found any mistakes in the post, please let me know. Email : jidong_cui@163.com. If you like …

Abaqus / FEM Analysis of Structural Components [构件有限元模拟] / Finite Element Method [有限元法] / Midas / My Software [我的软件] / Programming [编程] / Solid Mechanics [固体力学] / Structural Analysis [结构分析] / Structural Design [结构设计] / Structural Engineering [结构工程]

[Midas Gen][ABAQUS][Midas2Abaqus] Verification Example GNL-1: Geometric nonlinear analysis of a high arch structure [ Midas Gen 验证实例 GNL-1: 高拱结构的几何非线性分析]

【1】Problem Description ( Midas Gen’s Verification Examples GNL-1: Geometric nonlinear analysis of a high arch structure) Obtain load-displacement relation curves at the point of load application on a 100 m radius, …

[Midas Gen][ABAQUS][Midas2Abaqus] Verification Example Eigen-13: Eigenvalue analysis of cantilever cylindrical vault [ Midas Gen 验证实例 Static-13: 圆柱形拱顶特征值分析]

【1】Problem Description ( Midas Gen’s Verification Examples Static-13: Eigenvalue analysis of cantilever cylindrical vault) 【2】MODEL Properties Dimension Radius 0.6096 m Element Plate element Material Modulus of elasticity E = 2.0658×10 5 …

My Software [我的软件]

[软件][其他] 房贷计算器

（可不要小看这些知识…… ）注释 ( Comments ) ( 如果您发现有错误，欢迎批评指正。邮箱：jidong_cui@163.com . 如果您喜欢这篇博文，请在上面给我点个赞吧！ ( If you found any mistakes in the post, please let me know. Email : jidong_cui@163.com. If you like this posts, please give me a “thumbs …

My Software [我的软件] / Programming [编程] / Structural Design [结构设计] / Structural Engineering [结构工程]

[结构设计] 结构设计内力调整需要注意的一些基本概念

结构设计涉及到许多内力调整的情况，包括放大一些内力，使得结构设计更加安全。在理解结构各种内力调整前，需要注意和区分以下几个大的概念：（1）组合前调整和组合后调整因为，设计时候是涉及多个不同种类工况的，而各个工况的效应需要进行不同形式的组合。那么组合前调整和组合后调整是不同的概念。如常说的剪重比调整是调整地震剪力的，因此是组合前调整，而常说的强柱弱梁的调整，就是组合后调整。为何“强柱弱梁”、“强剪弱弯”调整是组合后调整，其实只要仔细思考这些力的特性及调整的目的，就容易理解。（2）整体性的调整及局部性的调整如剪重比调整或风荷载敏感结构的基本风压放大等内力调整，就是整个结构或者某一层楼所有构件的调整。而梁弯矩调幅，框架-剪力墙的0.2V0调整这些调整则是对部分构件进行的局部调整。 PS: 抓住上述这些基本的概念去看内力调整，就会清晰很多了。注释 ( Comments ) ( 如果您发现有错误，欢迎批评指正。邮箱：jidong_cui@163.com . 如果您喜欢这篇博文，请在上面给我点个赞吧！ ( If you found any mistakes in the post, please let me know. Email …

PKPM & YJK / Programming [编程] / Structural Analysis [结构分析] / Structural Design [结构设计] / Structural Engineering [结构工程] / Structural Wind Engineering [结构风工程]

[风洞试验][结构设计][软件] RWDI风洞试验荷载数据处理工具

程序图标 ( Program Icon ) 程序介绍 ( Program Introduction) RWDI 风洞试验数据处理工具，并可以转换成 YJK 计算的格式。程序界面 ( Program Interface ) 注释 ( Comments ) ( 如果您发现有错误，欢迎批评指正。邮箱：jidong_cui@163.com . 如果您喜欢这篇博文，请在上面给我点个赞吧！ ( If you found any mistakes in the post, please let …

Dynamics [动力学] / Earthquake Engineering [地震工程] / My Software [我的软件] / Programming [编程] / Research [科研]

[科研][工具][Research] 反应谱拟合及反应谱特征参数提取工具 [A tool for fitting response spectrum and extracting response spectrum parameters]

网友建议我做的一个小软件，帮助学生科研。程序图标 ( Program Icon ) 程序介绍 ( Program Introduction) 【科研小工具】：反应谱拟合，反应谱特征参数提取。参考论文：王国新, 陶夏新, 姜海燕. 反应谱特征参数的提取及其变化规律研究[J]. 世界地震工程, 2001, 17(2):73-78. 程序界面 ( Program Interface ) 动图演示 ( Dynamic Graph demonstration ) 下载 ( Download) ( 如果您需要这个软件，请通过邮箱联系我，然后这给网站捐助：http://www.jdcui.com/?page_id=4813，捐助请不能低于100RMB，捐助后在评论区留下您的评论，软件将通过邮件给您发送，敬请尊重劳动成果！！！。) 注释 ( Comments ) ( 如果您发现有错误，欢迎批评指正。邮箱：jidong_cui@163.com …

Abaqus / Finite Element Method [有限元法] / Midas / My Software [我的软件] / Nonlinear FEM [非线性有限元] / Structural Analysis [结构分析] / Structural Design [结构设计] / Structural Engineering [结构工程] / 钢结构 [Steel Structure]

[Abaqus][Midas][Midas2Abaqus] Midas Gen 教程12 – 单层网壳屈曲分析[Buckling analysis of a single layer reticulated dome]

(马上更新…..) 注释 ( Comments ) ( 如果您发现有错误，欢迎批评指正。邮箱：jidong_cui@163.com . 如果您喜欢这篇博文，请在上面给我点个赞吧！ ( If you found any mistakes in the post, please let me know. Email : jidong_cui@163.com. If you like this posts, please give me a “thumbs up“ rating …

AutoCAD / Structural Design [结构设计] / Working Drawings [施工图]

[AutoCAD] AutoCAD中的块操作命令B(Block)、W(WBlock)和ctrl+shift+c，ctrl+shift+v

【B , *BLOCK（块定义）】创建块，在文档内定义块。【W , *WBLOCK（定义块文件）】写块，讲块写到一个专门的文件，后续可以插入该文件。【Shift+Ctrl+C , *COPYCLIP（复制）】带基点复制，比较好用，平时用 ctrl+c默认基点是左下角点。【Shift+Ctrl+V , *PASTECLIP（粘贴）】将复制的图形粘贴为块，比如你建筑图修改后，可以用这个命令复制建筑图到施工图中参照。注释 ( Comments ) ( 如果您发现有错误，欢迎批评指正。邮箱：jidong_cui@163.com . 如果您喜欢这篇博文，请在上面给我点个赞吧！ ( If you found any mistakes in the …

Abaqus / Finite Element Method [有限元法] / Midas / Nonlinear FEM [非线性有限元] / Programming [编程] / Research [科研] / Structural Analysis [结构分析] / Structural Design [结构设计] / Structural Engineering [结构工程] / Structural Optimization[结构优化]

[优化][ABAQUS][Midas2Abaqus] Topology Optimization of a short cantilever beam by Abaqus [短悬臂梁拓扑优化分析算例]

又一个简单的优化小例子， PS. 某人答对了结果。【1】Midas Gen Model 【2】Midas2Abaqus Model 【3】Abaqus Model 【4】Optimization Results 优化目标：刚度最大化。约束条件：体积优化 30%。最终结果是一个三角形。注释 ( Comments ) ( 如果您发现有错误，欢迎批评指正。邮箱：jidong_cui@163.com . 如果您喜欢这篇博文，请在上面给我点个赞吧！ ( If you found any mistakes in the …

Abaqus / FEM Analysis of Structural Components [构件有限元模拟] / Finite Element Method [有限元法] / Structural Analysis [结构分析] / Structural Design [结构设计] / Structural Engineering [结构工程] / Structural Optimization[结构优化]

[优化][ABAQUS][Midas2Abaqus] Topology Optimization of a clamped-clamped beam by Abaqus [两端固支梁拓扑优化分析算例]

做个简单的优化小例子，后续有时间继续再做深入研究吧。这些都是拓扑优化届最初级最初级的小例子。很多书本都可以看到。先从最简单的拓扑优化开始。后续陆续分享一些实际工程的优化案例，贴近工程的一些优化思路及软件开发应用案例。【1】Midas Gen Model 【2】Midas2Abaqus Model 【3】Abaqus Model 【4】Optimization Results 优化目标：刚度最大化。约束条件：体积优化 50%。 (1) Step 5 (2) Step 10 (3) Step 25 (4) Strain Energy 到25步后，结构基本稳定。可以看出优化后的结构的轮廓。后续再继续深入研究。注释 ( Comments ) …

Abaqus / Finite Element Method [有限元法] / Programming [编程] / Reinforced Concrete [钢筋混凝土] / Structural Analysis [结构分析] / Structural Design [结构设计] / Structural Engineering [结构工程]

Abaqus 出现“The area of XXX elements is zero, small, or negative”错误提示

Abaqus “提示单元面积为零，很小或者为负数” 错误，如下所示： The area of 2500 elements is zero, small, or negative. Check coordinates or node numbering, or modify the mesh seed. The elements have been identified in element …

Diary [日记] / Earthquake Engineering [地震工程] / Structural Engineering [结构工程]

[日记] 5.12 一个特殊的日子

今天是2018年5月12日，汶川地震10周年。一个举国沉痛的日子。以此提醒自己，结构工程师和结构科研人员，均应该有责任感和使命感，因为房子是住人的。任何东西在人的生命面前，均应该让步。

Abaqus / ETABS & SAP2000 / FEM Analysis of Structural Components [构件有限元模拟] / Finite Element Method [有限元法] / Midas / Nonlinear FEM [非线性有限元] / Programming [编程] / Solid Mechanics [固体力学] / Structural Analysis [结构分析] / Structural Design [结构设计] / Structural Engineering [结构工程]

[Midas Gen][ABAQUS][Midas2Abaqus] Verification Example Static-31: Elliptic membrane under uniformly distributed load [ Midas Gen 验证实例 Static-31: 椭圆薄膜受均布荷载]

【1】Problem Description ( Midas Gen’s Verification Examples Static-31: Elliptic membrane under uniformly distributed load) An elliptical membrane of thickness, t and geometrical properties is subjected to a uniformly distributed outward pressure. …

Abaqus / FEM Analysis of Structural Components [构件有限元模拟] / Finite Element Method [有限元法] / Midas / Nonlinear FEM [非线性有限元] / Programming [编程] / Solid Mechanics [固体力学] / Structural Analysis [结构分析] / Structural Design [结构设计] / Structural Engineering [结构工程]

[Midas Gen][ABAQUS][Midas2Abaqus] Verification Example GNL-6: Snap-back Nonlinear problem [ Midas Gen 验证实例GNL-6: Snap-back 非线性问题]

【1】Problem Description (GNL-6: Snap-back Nonlinear problem from Midas Gen’s Verification Examples) Draw the load-displacement graph. 【2】MODEL Properties Dimension Length 2500 m Element Truss element Material Modulus of elasticity E = …

Abaqus / FEM Analysis of Structural Components [构件有限元模拟] / Finite Element Method [有限元法] / Midas / My Software [我的软件] / Nonlinear FEM [非线性有限元] / Programming [编程] / Research [科研] / Solid Mechanics [固体力学] / Structural Analysis [结构分析] / Structural Engineering [结构工程]

[Midas Gen][ABAQUS][Midas2Abaqus] Verification Example GNL-5: Snap-through Analysis of simply 2D truss [ Midas Gen 验证实例GNL-5: 2D桁架的阶跃分析]

【1】Problem Description (GNL-5: Snap-through Analysis of simply 2D truss from Midas Gen’s Verification Examples) A truss element is subjected to a vertical load at the node 2. Draw the load-displacement …

Abaqus / Dynamics [动力学] / Earthquake Engineering [地震工程] / FEM Analysis of Structural Components [构件有限元模拟] / Finite Element Method [有限元法] / Midas / My Software [我的软件] / Programming [编程] / Solid Mechanics [固体力学] / Structural Analysis [结构分析] / Structural Engineering [结构工程]

[Midas Gen][ABAQUS][Midas2Abaqus] Verification Example Eigen-15: Eigenvalue analysis of simply supported thin annular plate [ Midas Gen 验证实例Eigen-15: 简支薄圆板的特征值分析]

【1】Problem Description A simply supported thin annular plate is analyzed to determine the first 10 natural frequencies. Determine the natural frequencies and mode shapes. ( This model is original come …

PKPM & YJK / Structural Analysis [结构分析] / Structural Design [结构设计] / Structural Engineering [结构工程]

[yjk][结构设计] YJK模型拼接后需要检查的问题

（1）工程拼装时，必须检查节点否太多细微误差，若存在，必须调整，否则整个模型会很卡很卡。由于多个人建模在拼装，节点多多少有误差。（进可能修改）（2）截面、荷载过多，必要时候需要清理。（3）在特殊构件要检查材料表是否有修改。（4）铰接的指定有时候会出问题，YJK可以算，可能转到其他软件就无法计算了。（5）部分楼层的施工顺序问题，也会打乱。若存在特殊楼层，需要注意修改。注释 ( Comments ) ( 如果您发现有错误，欢迎批评指正。邮箱：jidong_cui@163.com . 如果您喜欢这篇博文，请在上面给我点个赞吧！ ( If you found any mistakes in the post, please let me know. Email : jidong_cui@163.com. If you like this posts, please …

Abaqus / FEM Analysis of Structural Components [构件有限元模拟] / Finite Element Method [有限元法] / Midas / My Software [我的软件] / Structural Analysis [结构分析] / Structural Engineering [结构工程]

[Midas Gen][ABAQUS][Midas2Abaqus] Tut-3: Web-opening Detail Analysis [ Midas Gen tut-3: 腹板开洞梁截面详细分析]

（马上更新…）注释 ( Comments ) ( 如果您发现有错误，欢迎批评指正。邮箱：jidong_cui@163.com . 如果您喜欢这篇博文，请在上面给我点个赞吧！ ( If you found any mistakes in the post, please let me know. Email : jidong_cui@163.com. If you like this posts, please give …

Abaqus / FEM Analysis of Structural Components [构件有限元模拟] / Finite Element Method [有限元法] / Midas / My Software [我的软件] / Programming [编程] / Reinforced Concrete [钢筋混凝土] / Structural Analysis [结构分析] / Structural Design [结构设计] / Structural Engineering [结构工程]

[Midas Gen][ABAQUS][Midas2Abaqus] Tut-4: Hammerhead Pier [ Midas Gen tut-4: 锤头桥墩]

【1】Problem Description (from ) 【2】Midas Gen Model [ Tut-4: Two column hammerhead Pier from Midas Gen’s Tutorials ] Load Case – Vertical Load: Load Case – Seismic Load: 【3】Midas 2 …

Abaqus / Earthquake Engineering [地震工程] / FEM Analysis of Structural Components [构件有限元模拟] / Finite Element Method [有限元法] / Midas / My Software [我的软件] / Programming [编程] / Structural Analysis [结构分析] / Structural Engineering [结构工程] / 钢结构 [Steel Structure]

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