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免费版本2018-01-05
ETABS TO PERFORM-3D
Author: dinochen1983
Time: 2023-12-31
[小记]ETE2018是由陈学伟(DINO)与李明(LI MING)开发的集成程序,它可以完成结构概念设计
优化设计、模型转换、快速建模,快速验算与结构总信息统计的小程序,在设计的基础上开发,不是纯学术研究
满足工程人员对设计的极致要求。由于程序太巨大量,学习操作的教程会慢慢在DINOCHEN.COM上发布
有兴趣的工程师可以下载试用,我们定期会在微信公众号平台公布程序的最新进展
我们的微信公众号是 DINOSTRU , 或扫码关注, 微信的更新是永远最快的。
ETE2018
Author: dinochen1983
Time: 2023-12-27
ETABS to ABAQUS 内置于 ETE2018
ETABS to ABAQUS
Author: dinochen1983
Time: 2023-12-09
预览模式: 普通 | 列表


今天师弟给了我一道计算机图形学的题目,是他们计算机辅助设计课程的小作业,今天我用半个小时搞定了它。其实,这个题目有点意思,练习中可以体现出几个考点:自循环算法(简单的分形),可视化编程,AUTOCAD控制,编制dxf文档。我在这题目上加了一个动画控制,通过调整角度值可以看到分形图形的变化。
原题目是:用FORTRAN编写一个程序生成图示图形的DXF文件。要求在运行的过程中提示输入最大正方形的边长,正方形的个数,相邻两正方形的夹角。
最后,我采用的是Delphi来编写,通过时间控件可以实现动画显示,颜色淅变,甚至可控制AUTOCAD出图,但是在算例中我只是让程序输出DXF文件就行了,偷懒一下!!


Perform-3d学习资料下载
为方便大家学习PERFORM-3D的软件操作,我从安装文件中的帮助文档中摘下了PERFORM-3D学习资料供大家下载
PERFORM3DUserGuide and PERFORMComponentsAndElements are availabe for download!!


Download点击下载:
PERFORM3DGettingStarted.pdf
PERFORM3DUserGuide.pdf
PERFORMComponentsAndElements.pdf

《基于纤维模型的超高层钢筋混凝土结构弹塑性时程分析及工程应用》该论文获得金土木优秀论文一等奖,很多网友对该论文比较有兴趣,现已被金土木推至《建筑结构》发表,现阶段只能公开摘要。摘要内容如下:

基于纤维模型的超高层钢筋混凝土结构弹塑性时程分析及工程应用
韩小雷1,2) 陈学伟1) 林生逸1) 何伟球1) 郑宜1) 吴培烽1) 毛贵牛1)
(1. 华南理工大学高层建筑结构研究所 广州 510640;2.华南理工大学亚热带建筑科学国家重点实验室 广州 510640)

[摘要]  基于纤维模型理论利用PERFORM-3D软件实现了复杂超高层建筑结构的弹塑性时程分析并进行构件变形性能评估。针对PERFORM-3D建立高层结构模型的复杂性,开发了PERFORM-3D前处理程序ETP使之能够方便地准确地建立弹塑性模型。分析表明,基于纤维模型的整体结构弹塑性分析法是一种高效可行的方法,不但宏观上得到结构整体响应,而且微观上得到构件内力及变形和纤维的应力及应变。通过工程实例,得到整体结构响应、构件的变形及结构能量耗散情况,研究按我国现行规范进行设计的超高层混凝土结构在罕遇地震作用下的非线性变形及受力特点。

[关键词]  弹塑性时程分析 PERFORM-3D 超高层结构 基于性能 阻尼

Inelastic Time-History Analysis and Engineering Application of Super High-Rise RC Building Structure Based on Fiber Model /Han Xiaolei1,2, Chen Xuewei1, Lin Shengyi1, He weiqiu1, Jack Cheang1, Wu Peifeng1, Mao Guiniu1 (1 Tall Building Structure Research Institute, College of Architecture and Civil Engineering; 2 Key Laboratory of Subtropic Architecture Ministry of Education, South China University of Technology, Guangzhou 510640, China)

Abstract: Inelastic time history analysis and component deformation performance evaluation of complex super high-rise building structure can be realized by the program PERFORM-3D based on the theory of fiber model. In order to reduce the complexity of tall building structure modeling, a pre-processing program named ETP is proposed in this paper. The research showed that inelastic analysis of the whole structure based on fiber model is a efficient and successful method. In macro sense, the response of the whole structure can be gained. And in micro sense, component internal force and deformation as well as the stress and strain of the fiber can be gained. Combining with engineering example, the results of the whole structure response, component deformation and energy dissipation can be used for the research of the inelastic deformation and stress characteristics of the super high-rise building structure designed according to current codes under rare earthquake.

Keywords: inelastic; time-history analysis; PERFORM-3D; super high-rise building structure; Performance-based

Google Analytics(分析)工具引入本博客
我看了一些博客,包括陆新征的,发现他们都采用Google Analytics这个软件来统计自已的博客被别人的关注程度,这样可以方便按照浏览者的兴趣,放一些更加有用的东西上来,这个挺有意义的。Google Analytics的功能很强大,只要你修改一个跟踪代码进入你的网页表头,GOOGLE就会统计每天有多少人关注你的博客,什么国家的人,关注你什么话题多一些,我喜欢这些统计数据,这样一方面可以知道看我博客的人的爱好或某些贴子的受欢迎程度。GOOGLE公司真的很强人,不可思议的创新能力呀!!截个图给大家看看:


2008年10月25日,我们分析小组在韩小雷老师的指导下,完成了PERFORM-3D的一篇基于性能抗震设计方法工程应用的论文,题目是《基于纤维模型的超高层钢筋混凝土结构弹塑性时程分析及工程应用》 获得用户大会CUC08的优秀论文第一名,获得奖金3000元,并且会被推荐至《建筑结构》(核心期刊)上发表。以下是转载金土木公司的报道。
相关链接:http://www.bjcks.com/Company/datum/2008102901.asp

金土木首届结构软件全国用户大会在京召开

2008年10月24日至25日,第七届亚欧首脑会议在北京召开的同时,北京金土木软件技术有限公司举办了公司成立5年来的首届结构软件全国用户大会CUC'08。本次大会的主题是“交流、沟通、分享——搭建全国结构工程师交流工程软件应用的平台”。

 

本次用户大会有幸邀请到SAP2000创始人Edward L. Wilson教授、CSI公司创始人Ashraf总裁、范重教授、傅学怡教授、杨蔚彪教授、韩小雷教授、扶长生教授、顾磊教授、王健博士和刘鹏博士等二十余名业内专家和青年精英,就业内热点问题和结构创新设计做了精彩的演讲。共有全国近150家设计院和高校的200多位工程师参加了本次用户大会。

本次大会报告精彩纷呈,1天半的安排,让与会工程师感觉紧凑而丰富。其中傅学怡教授的报告《深圳大梅沙万科总部上部结构设计》,结构设计标新立异,让与会工程师耳目一新。

大会集结论文40篇,共320页。优秀论文评选产生1名一等奖(《基于纤维模型的超高层钢筋混凝土结构弹塑性时程分析及工程应用》,作者:韩小雷, 陈学伟, 林生逸,何伟球,郑宜,吴培烽,毛贵牛)2名二等奖(《SAP2000/ETABS与奥运/亚运场馆(部分)结构创新设计》,作者:顾 磊;《采用ETABS及美国规范设计境外某高层建筑结构的体会》,作者:易 勇,张蜀泸,刘兰花,冯 远)3名3等奖(《广州西塔建模分析中的若干问题探讨》,作者:郑 竹;《西南交通大学体育馆钢桁架动力特性及稳定分析》,作者:徐 麟;《海峡商务中心工程结构设计》,作者:王家林,陈彬磊),并特别颁发了2名应用开发鼓励奖(《混凝土梁配筋国标平法原位标注程序ETABS_POST的开发原理及应用》,作者:杨先桥;《利用ANSYS前处理与SAP2000 API建模探讨》,作者:冯克义)。应参会者对大会论文征集时间过短的意见,北京金土木软件技术有限公司在会上即时宣布征集2009年举办的第二届全国用户大会论文。

大会抽奖环节,由特邀报告人、CSI嘉宾和金土木公司领导共同抽出了27位幸运参会代表,分别颁发了GPS导航仪、数码相机、移动硬盘和签名著作。


 

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2006年,华南理工大学开展申请混凝土结构设计原理作为精品课程,打算制作高水平多媒体教学课件,我在蔡健老师,黄炎生老师及季静老师的指导下,开始编制混凝土结构设计原理智能试题库。这个并不是普通的课件,它是一个综合性计算程序,集合了几类的混凝土结构设计的题目,不但可以给学生练习使用,也可以用于教学,甚至可以拿出来试卷。这个程序主要是采用Borland Delphi v7.0编制而成,采用可拓展的DLL技术,方便以后升级。程序界面如图所示。
Download: 华南理工大学混凝土结构设计原理_智能试验库_v1.0




中洲观光门结构振动台试验
今天中洲观光门结构站振动台试验顺利完成,在广州大学的谭平老师,马玉宏老师,金建敏老师及陈建秋老师的努力下,准备了4个月的振动台试验终于完成了。作为分析小组的我们,看着自已设计的简化模型从电脑分析设计,到现场施工制作,直至振动台试验的完成,心里充满了喜悦。很难得的工程与科研的机会给我们这群小子遇上了。我们的分析小组,包括我,林生逸,吴培烽与毛贵牛四人在韩小雷才师及郑宜师兄的指导下,完成模型的分析与设计,最后协助广州大学完成试验方案。该结构非常复杂,包括以下特点:连体结构,高宽比大,钢混组合体系,异形墙肢,带粘滞阻尼器等等。虽然完成的试验,但后续的分析设计工作仍然需要继续,有试验资料作为辅助,可使工程分析更有信心。
The shaking table test of Zhongzhou Gate is finished today. With the help of Prof. Tang, Mrs. Ma, Mr. Jing and Mr. Chen, the test which is prepared for four month is finished perfectly. We, the other three students of my director and I, are the analysis team of the structure. Our job is to simulate the structure in computer, to analyze it, to design the model of it, to help the workers to build the model. When I saw the small scale model of the structure on the shaking table in the lab, I feel so happy. I think that is a very precious engineering experience and research opportunity for us. Under the direction of my professor, Mr. Han, we finally finished the test scheme and helped the lab of Univ. of Guangzhou to carry out. By the way, the building structure is very complicated, such as thin-and-tall, special-shape-pier, steel and concrete composite system, and viscous dampers. The test is over, however, the analysis and design work after the test should be continue. With the information and database of the test, we get more confidence for the analysis of engineering design.
更多的试验照片请看我的相册:http://www.dinochen.com/LoadMod.asp?plugins=album&class=11


工程分析小组:毛贵牛(风振分析)+陈学伟(总分析)+吴培烽(构件分析)

Program: SAP IV

Donwload: Sap4 Source Code

Title: Static and Dynamic Response of Linear Systems

Developer:  K-J. Bathe, E.L. Wilson and F. E. Peterson,
Department of Civil Engineering, University of California,
Berkeley 1973

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风振时程分析程序_windhist producer v1.0

总结一下去年的研究工作,其中有一项比较重要的就是“基于AR法的风振时程分析程序”的开发。这个程序主要是采用线性滤波法生成风速时程再通过转化变成风压力时程,主要是荷载数据的处理程序,而力学求解部分采用SAP2000或ETABS。程序界面如图所示。

通过面向对象的程序语言Borland Delphi 7.0编制具有前后处理及图形功能的风时程生成软件WINDHIST PRODUCERv1.0。该软件可实现通过导入SAP2000和ETABS生成的Excel表格,输入结构空间点分布。本软件可修改AR模型的阶次,积分精度、频率区间、计算步长等计算模型的参数,可调节计算模型的速度与精度。本软件的特色在于风荷载特性的输入与我国《荷载规范》紧密结合。程序可通过输入基本风压与地面粗糙度类别,按规范自动计算出梯度风高度、平均风指数和粗糙度系数并生成风速时程数据,也可以手动输入风特性参数。本软件还可以实现多样本时程的自动生成,可实现批量保存,批量导入SAP2000与ETABS的模型中,从而实现多样本的时程分析。
界面可见,非常的人性化,现在大部分风振研究大部分采用MATLAB来做,做出来的程序界面不友好,难与应用于实际工程。采用DELPHI编制界面以后,可以随时改变参数,马上生成风速曲线,且速度比MATLAB要快。
该程序的编写工作已写入论文《高层建筑结构风振时程分析软件的技术研究》将发表于《华中科技大学学报(城市科学版)》,在第八届全国结构计算理论与工程应用学术会议上发表。
Download:风振时程分析程序 windhist producer v1.0 技术说明文档 点击下载
风速模拟效果如下图所示。风振时程分析与《高钢规》简化公式的计算结果对比如图所示。以上内容在论文中均有提到。


 

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金土木结构软件全国用户大会将于2008年10月24日在北京召开!!
该会议论文集刊登了我们的四篇论文:
[1].基于纤维模型的超高层钢筋混凝土结构弹塑性时程分析及工程应用
.(原创)Perform-3D
[2].基于SAP2000 的复杂筏板基础分析与设计.(原创)SAP2000
[3].The Research of Time-History Response Analysis of Floor Vibration Based on Simulation of Group Walking.(已发表)SAP2000
[4].高层建筑结构风振时程分析及风速时程生成软件编制技术研究.(已发表)ETABS

北京一日游,从司马台长城穿越至金山岭长城


北京开了5天的14WCEE一直在开会而没有出去游玩北京,直到最后一天闭幕,在侯家健师兄的强力劝说之下,我决定与师兄一起去攀登司马台长城,并计划进行穿越,从司马台一直去到金山岭。我们在17号的下午出发,到晚上10点终于到了司马台的山脚下。第二天,我们六点半出发,从司马台出发,徒步穿越了一个又一个的炮台。在路上,风光无限。10月份的北京是最美丽的。大家可以看看相册的一些图片摘录。
司马台的相册:http://www.dinochen.com/LoadMod.asp?plugins=album&class=10
穿越完已经是12点钟了,我们再坐车去机场,最后离开了首都北京。终于,完成了“不到长城非好汉”的使命了。
I feel so tied when we were finished the five-day conference (14th world conference of earthquake engineering). That is my first time to Beijing, but I was so busy for the conference and has no chance to play outside. Finally, on the day before I would fly back to Guangzhou, I decided to go and play in Beijing. Simatai great wall is the best choice for me. Kent Huo is my partner and my tour guider in the journey. He has a perfect plan of that journey. We choose the cheapest journey to the Simatai. We started on 17th afternoon, and then took a long time but cheap bus to a place near Simatiai, and we shifted to Simatai by taxi. Finally, we reach Simatai at 10:00 pm. We were so tied and had a rest immediately. The second day, we started at early morning to go to visit the beautiful great wall. We walked throught the great wall form one emplacement to another, finally to reach the other point name Jingshanling great wall. It’s a very very long distance to walk, about 5 hours. However, the scene of every emplacement is very beautiful. So we also took a lot of pictures. I think the Beijing of October is the most beautiful. The pictures I took had put on internet in my website.

Dynamic Inelastic Numerical Simulation for a Shaking Table Test of a Full Scale Steel Moment Frame Structure based on OpenSEES
Chen Xuewei Han Xiaolei Jack CHEANG Lin Shengyi Mao Guiniu

ABSTRACT :
This paper presents a Dynamic nonlinear numerical simulation of a 4-story full-scale steel moment frame structure based on OpenSEES. Fiber model which has fewer DOFs is used for structure member simulation.
The responses of the structure under frequent, moderate and severe ground motions are predicted prior to the full-scale shake-table test. Correlated with the experimental results, the analytical results confirm the accuracy of the numerical simulation method, in both representing the inelastic behavior and the failure mechanism. The seismic responses and the collapse moment under severe ground motion are precise predicted. The study establishes the validity of the inelastic analysis method of overall structure based on fiber model, which is suitable for seismic analysis of overall structure.

KEYWORDS: Inelastic Time-History Analysis, Steel Frame, Full Scale Specimen, Shaking Table Test, Blind Analysis

Download:Dynamic Inelastic Numerical Simulation for a Shaking Table Test of a Full Scale Steel Moment Frame Structure based on OpenSEES

Numerical Analysis of Cyclic Loading Test of Shear Walls based on OpenSEES
Han Xiaolei Chen Xuewei Jack CHEANG Mao Guiniu Wu Peifeng

ABSTRACT :
Neither the original structure nor the altered structure of the Garden Hotel in Guangzhou accords with the ductile details of seismic design based on current Chinese codes. In order to explore the seismic performance of the original shear wall structure and the altered shear wall structure, the cyclic loading testes of the shear walls with different reinforcement ratio and constructional details are carried out. This paper presents the numerical analysis of the cyclic loading testes of shear walls with SWNA (Shear Wall Nonlinear Analysis) program. SWNA program is secondary developed based on OpenSEES and MVLEM. Compare with the testes, the numerical results confirmed the accuracy of this analysis procedure in representing the nonlinear behavior of the shear wall, such as the shifting of natural axis, shear deformation, local collapse and collapse mechanism. The analysis procedure based on MVLEM, which saves the calculating cost due to fewer DOFs, can stimulate the nonlinear behavior of the shear wall, and fit for global inelastic analysis and performance based design of tall building structure.

KEYWORDS: Shear wall, Cyclic loading test, OpenSEES, MVLEM, Nonlinear analysis

Download:Numerical Analysis of Cyclic Loading Test of Shear Walls based on OpenSEES.pdf

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2008年10月13日至17日,在北京市九华山庄召开了第十四届世界地震工程大会。大会分keynote, oral presentation, poster presentation and exhibition 四个环节。各个环节都很精彩,可是我分身乏术,我只能参加我感兴趣的几个section,如数值分析方法,混凝土结构及倒塌分析等。在会中见到很多国际知名的结构分析专家,如我的偶像而未曾见过面的,曾经帮过我很大忙的Matej Fischinger教授,kasai教授,Hikino博士等等。而且与久仰的结构大师Kabeyasawa见面及合照。
通过这个会议认识了很多大牛,还有认识了一个志同道合的Berkeley的学生,在coffee shop聊opensees的开发聊了很久,这个会议是国际地震工程学术的交流平台。在presentation里面,学到很多国际先进的试验及分析技术。我在POSTER里面宣讲我的两篇关于OPENSEES的论文,呵呵,在宣讲时也认识了一些朋友。这个会议太难忘了,于是如无意外,我会继续参加15wcee的。
The 14th conference of earthquake engineering is hold in Qiuhua hotel in Beijing on 13th October 2008. The conference for engineers work on earthquake is just like the Olympic game for athlete. The engineers and researchers form many countries has come here to discuss, to communicate, to learn and to see. The conference is made up by four parts: Keynote, oral Presentation, Poster Presentation and Exhibition. Every part of it is very wonderful. oral presentation and Poster Presentation are parallel, but I cannot divide myself into two parts, so I could only join several sections which I am very interested in. For example, simulation methods, concrete structure and collapse analysis. In the conference, I meet a lot of famous researchers such as Prof. Matej Fischinger who had help me a lot in my research but we just contact by Email. After the conference I had meet some new friend, some PhD students, such as Mr. Andreas. We meet in the coffee shop of the hotel. We talked about the technical problem about “OpenFresco” in the evening. The conference is the best communicate platform for academe of earthquake engineering. In the Presentation I have learned a lot of advanced technology of analysis and experiment. I also have an opportunity to show my two research papers. The conference is so great, and thenI think I will join the next world conference of earthquake engineering (15WCEE).

Research On The Seismic Design Of Transfer-Storey Structures Based On Philosophy Of Capacity Design Under Severe Earthquake
Jack CHEANG Han Xiaolei  Tang JianQiu   Chen Xuewei

ABSTRACT :
Both theoretical analysis and engineering applications of the transfer-storey structures are mostly limited in elastic stage under frequent earthquakes; the structural behavior after yielding under severe earthquake need to be studied by elastic-plastic analysis. And there is no specific and quantitative method to ensure that transfer structures can “resist severe earthquake without collapse”.  In this paper, the philosophy of capacity design is introduced into the design of transfer-storey structures and a practical design method for transfer structures under severe earthquake is presented. Through push-over analysis, various limit states of coupled shear walls are disclosed. Parameters that influence significantly the structure behavior such as integer coefficient of coupled shear walls, reinforcement ratio of coupling beams and height-width ratio of shear walls are highlighted. The shear overstrength of the coupling beams under the ideal limit state is reduced with reduction coefficient K. Overstrength of shear walls is derived by ultimate state analysis, which considers the axial forces increment of shear walls caused by shear overstrength of coupling beams. On this basis, mechanical characteristics and capacity based seismic design method of transfer storey under severe earthquake are studied by elastic-plastic analysis. A series of nonlinear dynamic time-history analysis has been completed, which considers the influence of varied parameters including the stiffness and mass of transfer structures, seismic protected intensity and the position of transfer storey. Moreover, the simplified formulas and the detail procedure for capacity design of transfer structures are presented.

KEYWORDS: philosophy of capacity design, design of transfer-storey, structural overstrength, push-over analysis, nonlinear dynamic time-history analysis, severe earthquake

Download:RESEARCH ON THE SEISMIC DESIGN OF TRANSFER-STOREY STRUCTURES BASED ON PHILOSOPHY OF CAPACITY DESIGN UNDER SEVERE EARTHQUAKE

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我校学生在国际结构振动台分析竞赛中获得第三名
2008年10月09日 10:32:23 浏览次数:1840


获奖证书

    近日,土木与交通学院博士研究生陈学伟、硕士研究生彭樵斌在韩小雷教授的指导下,参加国际结构振动台分析比赛并在比赛中获得3D科研组第三名的好成绩。
    该比赛由Blind Analysis Contest第14届世界地震工程会议和日本防灾科学技术研究所兵库抗震工学研究中心联合举办。比赛分四个组:3D科研组、3D工程组、2D科研组及2D工程组,要求对一全尺寸钢框架结构进行地震台试验前期分析,提交分析结果(包括地震响应及倒塌时间)并与震动台试验结果进行对比,以结果的准确性作为评选的标准。
    来自中国、日本、美国、新西兰、意大利、英国等国家和地区的47支队伍参加了本次比赛,其中包括多所在工程抗震领域有前沿性科研贡献的日本及美国的著名大学和研究所,代表了工程抗震的结构非线性领域的最高水平。
    本次比赛结果将于2008年10月在北京举办的第14届世界地震工程会议上宣布并展示抗震分析最新成果。 获奖名单及比赛情况可访问本次活动的网站:http://www.blind-analysis.jp/。(图文/通讯员 陈昕 土木与交通学院  编辑/龚华萍)
Today, my name is appear on the website of the university news. The news is about the award I get recently. The award I mentioned is the third place of the blind analysis contest. Let me introduce the contest. Blind analysis contest is hold in Japan in 2007, organize by 14th world conference of earthquake engineering and NIED which is a research institute in Japan. The content of the contest is asking the researcher to do analysis of a real steel frame structure before the shaking table test. Before the test, researcher should hand in the report of the response of the structure under an simulated earthquake named “Takatori”. The team whose result is close to the test result will win the award. Many researchers form many countries (China, Japan, United States, New Zealand, Italy, United Kingdom), 47 teams are join into the contest. All these teams represent the new technology and advance method in structure seismic analysis. After a few months, the contest result come out, and we got the third place and it’s broadcasted on the internet. I felt so happy and couldn’t sleep at night.
转载网址:http://202.38.194.228:8880/newsDetail.jsp?id=52884


DinoPTESAP v1.0 常应力(应变)单元有限元程序的开发

DinoPTESAP v1.0 这是我本科时候的作品,与Dino Sap v1.0 一样通过编程的方法去了解及体会静力学有限元方法的基本原理,通过一些美术功底与前后处理技术,并参考美国的SAP4源程序(我认为学生有限元的学生一定要看的源代码)开发的第二个有限元程序,当然第一个是DINOSAP,这两个程序是练手之作来的。常应变(应力)三角形单元CST的原理在有限元法一书(王勖成)或弹性力学(徐芝纶)一书都有介绍,原理与编制过程我就不详细阐述,学习有限元的学生通过编写这个程序会基本了解弹性静力学有限元的基本过程。在sap2000,ANSYS等程序中,都已经没有CST单元了,基本上最小阶次的单元都是二次元,教师在用ANSYS教学有限元时,往往不能SHOW一下常应变(应力)三角形单元的不足之处。这个程序就可以能过图形直观了体现常应变(应力)单元的性态了。

结构有限元模型采用3DSMAX建模后导入,3DSMAX有部分插件是可以实现网格划分的。导入后,在DINO PTESAP中建立约束,荷载,厚度弹性模量等信息后进行静力分析,最后结果可以显示变形及应力(应变)云图。

点击下载Dino PteSap v1.0


程序界面图(结构变形图)

结构应力 stress-y 图

以前在www.okok.org 上发表过的,求解一些不规则空间曲面有用到的程序,Dino Area Calculator 程序,原理与有限元的基本原理一样,求面积的过程是积分,积分的求解可以是通过公式来求出解析解计算得到,但对于复杂曲面,描述的公式可以很复杂,因此可以选择离散法,先将曲面离散成很多三角或四边面,然后以求和代替求积分。

软件操作说明:
1.用3DSMAX对计算的模型进行建模,细分网格;
2.输出ASCII文件,后辍为*.ASE,精度为七位;
3.打开面积求解器,计算表面积与重心;

点击下载:


在3dsmax建立半椭球表面并细分网格


在Dino Area Calculator 计算表面积

珠海天朗海峰国际中心_基于性能抗震分析


珠海天朗海峰相关网站:http://www.zhtlhf.com/

2008年8月完成了珠海天朗海峰国际中心的超限初步设计,采用了PERFORM-3D对其进行了弹塑性时程分析及基于性能的抗震评估。由于PERFORM-3D的建模非常复杂,所以我开发了一个ETABS TO PERFORM-3D的前处理,可以实现在ETABS建立几何模型,再通过我开发的前处理系统输入配筋与纤维截面划分,再导入PERFORM-3D完成非线性模型。PERFORM-3D 上述基于纤维模型(PERFORM-3D)的弹塑性分析的研究已初步完成论文《基于纤维模型的超高层钢筋混凝土结构弹塑性时程分析及工程应用》,正准备发表!PERFORM-3D是一个很不错的软件,可以输出大量工程关心的结果,塑性铰转角及能量耗散情况。


PERFORM-3D三维模型


PERFORM-3D前处理系统 ETP(ETABS TO PERFORM-3D)程序