本文選題：重力壩 + 靜力分析　； 參考：《華北電力大學(xué)》2014年碩士論文

【摘要】：水能作為一種清潔能源,不僅環(huán)保,還具有可再生性,其開發(fā)利用具有重要意義。水能的開發(fā)離不開大壩的建設(shè),重力壩作為一種擋水建筑物,因安全可靠,對(duì)地形地質(zhì)適應(yīng)性強(qiáng),便于施工等優(yōu)點(diǎn)而被廣泛采用。 我國是地震多發(fā)的國家,建設(shè)重力壩的地區(qū)一旦發(fā)生地震,將帶來災(zāi)難性的后果,所以重力壩的抗震安全研究是十分必要的。結(jié)構(gòu)的優(yōu)化設(shè)計(jì)具有十分重要的意義,因其往往能帶來可觀的經(jīng)濟(jì)效益。對(duì)重力壩斷面進(jìn)行優(yōu)化設(shè)計(jì),并對(duì)比設(shè)計(jì)前后的壩體在靜力荷載、地震動(dòng)力荷載下的應(yīng)力指標(biāo),具有很現(xiàn)實(shí)的工程意義。本文使用有限元法計(jì)算重力壩的應(yīng)力,使用反應(yīng)譜法計(jì)算重力壩的地震響應(yīng)。 ANSYS是大型通用有限元軟件,它包括前處理模塊、分析計(jì)算模塊以及后處理模塊。ANSYS可以進(jìn)行結(jié)構(gòu)的靜力和動(dòng)力分析。此外,ANSYS自帶優(yōu)化模塊,使用APDL語言編制程序可以對(duì)結(jié)構(gòu)進(jìn)行優(yōu)化設(shè)計(jì)。 本文基于ANSYS有限元軟件對(duì)重力壩進(jìn)行靜力分析,得到了重力壩在靜力荷載下應(yīng)力和位移的分布情況。并基于ANSYS對(duì)重力壩進(jìn)行模態(tài)分析和譜分析,分別求出了重力壩空庫模型和滿庫模型的固有頻率,豎向以及水平向地震作用下的應(yīng)力和位移分布。最后,本文基于ANSYS通過APDL語言編制命令流實(shí)現(xiàn)了重力壩斷面的優(yōu)化設(shè)計(jì)。 計(jì)算結(jié)果表明：一階方法對(duì)重力壩進(jìn)行優(yōu)化的結(jié)果要好于零階方法。且通過對(duì)比優(yōu)化前后斷面的一些指標(biāo)可以知道,基于ANSYS的一階優(yōu)化設(shè)計(jì)不僅減小了重力壩斷面面積,提高了設(shè)計(jì)的經(jīng)濟(jì)性,還使得大壩的安全性、抗震能力同時(shí)得到了提高。
[Abstract]:As a kind of clean energy, water energy is not only environmentally friendly, but also renewable. The development of hydraulic energy can not be separated from dam construction. Gravity dam, as a water-retaining structure, is widely used because of its advantages of safety and reliability, strong adaptability to topography and geology, and ease of construction. Once earthquake occurs in the area of gravity dam construction, it will bring disastrous consequences, so it is necessary to study seismic safety of gravity dam. The optimum design of structure is of great significance, because it can bring considerable economic benefits. It is of practical engineering significance to optimize the design of gravity dam section and compare the stress index of dam body under static load and seismic dynamic load before and after design. In this paper, the stress of gravity dam is calculated by finite element method, and the seismic response of gravity dam is calculated by response spectrum method. Analysis and calculation module and post-processing module. ANSYS can carry out static and dynamic analysis of the structure. In addition, ANSYS with its own optimization module, the APDL language programming can be used to optimize the design of the structure. Based on ANSYS finite element software for gravity dam static analysis, the gravity dam under static load stress and displacement distribution. Based on the modal analysis and spectrum analysis of gravity dam with ANSYS, the natural frequency, stress and displacement distribution of the empty reservoir model and the full reservoir model of gravity dam under the action of vertical and horizontal earthquake are obtained respectively. Finally, the optimal design of gravity dam section is realized by APDL language based on ANSYS. The results show that the first order method is better than the zero order method. By comparing some indexes of section before and after optimization, we can know that the first order optimization design based on ANSYS not only reduces the area of gravity dam section, improves the design economy, but also improves the safety and seismic capacity of the dam.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TV642.3;TV312

【參考文獻(xiàn)】

中國期刊全文數(shù)據(jù)庫 前9條

1 王棟,李守義,曹蔚;基于ANSYS的重力壩基本斷面的優(yōu)化設(shè)計(jì)[J];紅水河;2005年03期

2 趙長勇;張系斌;翟曉鵬;;基于ANSYS參數(shù)化語言APDL的結(jié)構(gòu)優(yōu)化設(shè)計(jì)[J];山西建筑;2008年03期

3 王建良;姚激;蒲秀榮;;軟巖邊坡穩(wěn)定性的FLAC和剛體極限平衡法對(duì)比分析[J];科學(xué)技術(shù)與工程;2009年16期

4 毛有智;;碾壓混凝土重力壩的地震動(dòng)力反應(yīng)譜分析[J];山西建筑;2013年25期

5 LIU TianYun;LI QingBin;ZHAO ChongBin;;An efficient time-integration method for nonlinear dynamic analysis of solids and structures[J];Science China(Physics,Mechanics & Astronomy);2013年04期

6 胡正濤;;考慮動(dòng)水壓力的斜拉橋地震反應(yīng)分析[J];四川建筑;2009年04期

7 高榮慧;張巖;羅輝;;基于VB和ANSYS的塔式起重機(jī)臂架參數(shù)化設(shè)計(jì)[J];機(jī)械工程與自動(dòng)化;2008年01期

8 李芬花;郭丹;;基于ANSYS的重力壩非溢流斷面的優(yōu)化設(shè)計(jì)[J];水利水電技術(shù);2012年06期

9 張傳國;;Ansys在混凝土重力壩振型分解反應(yīng)譜分析中的應(yīng)用[J];云南水力發(fā)電;2009年06期

，

本文編號(hào)：2001952