本文選題：預(yù)應(yīng)力混凝土—鋼組合塔架　切入點(diǎn)：開孔板穿筋連接　出處：《湖南大學(xué)》2015年碩士論文

【摘要】：隨著世界能源與環(huán)境危機(jī)加劇,風(fēng)能作為一種清潔的可在生能源越來越受到各國政府和研究機(jī)構(gòu)的重視。當(dāng)前,風(fēng)力發(fā)電的單機(jī)裝機(jī)容量不斷增大,塔架的高度不斷增高,傳統(tǒng)鋼制塔架底部直徑大、運(yùn)輸困難、經(jīng)濟(jì)性差等問題日益突出。預(yù)應(yīng)力混凝土—鋼組合風(fēng)力發(fā)電塔架是一種可以有效解決這些問題的新型塔架形式。為了使鋼與混凝土兩種材料的特點(diǎn)可以充分發(fā)揮并且協(xié)同作用,同時(shí)保證結(jié)構(gòu)的剛度突變點(diǎn)受力安全可靠,對組合塔架的混凝土—鋼連接段的結(jié)構(gòu)選型和設(shè)計(jì)及受力分析研究相當(dāng)重要。目前,國內(nèi)外未見有關(guān)組合塔架連接段的詳細(xì)設(shè)計(jì)資料和研究報(bào)道。針對傳統(tǒng)法蘭連接存在的問題,本論文提出一種新型帶孔穿筋板連接段結(jié)構(gòu)方案,在利用有限元軟件對其進(jìn)行受力性能分析的基礎(chǔ)上,選取基本結(jié)構(gòu)單元進(jìn)行比例模型試驗(yàn)研究,為我國風(fēng)電行業(yè)塔架建設(shè)提供參考。本文包括以下主要內(nèi)容:1.結(jié)合工程實(shí)例,對組合塔架新型帶孔穿筋板連接段的結(jié)構(gòu)實(shí)現(xiàn)形式做出詳細(xì)介紹并參考已有的研究資料對連接段的承載能力進(jìn)行驗(yàn)算。2.以設(shè)計(jì)的組合塔架連接段結(jié)構(gòu)為原型,利用ABAQUS有限元分析軟件對其進(jìn)行彈性及采用混凝土塑性本構(gòu)模型的彈塑性數(shù)值模擬。根據(jù)模擬結(jié)果,對連接段混凝土和鋼制構(gòu)件的受力情況及其關(guān)鍵構(gòu)件穿孔鋼筋的受力變形進(jìn)行了分析。3.對組合塔架連接段進(jìn)行合理的簡化后對其基本單元進(jìn)行模型試驗(yàn),分析在最不利荷載組合設(shè)計(jì)值的作用下結(jié)構(gòu)的局部和整體受力情況。模型的試驗(yàn)結(jié)果數(shù)據(jù)驗(yàn)證了該結(jié)構(gòu)方案的可行性。4.對試驗(yàn)構(gòu)件進(jìn)行數(shù)值模擬并和模型試驗(yàn)結(jié)果進(jìn)行對比。通過數(shù)值模擬和模型試驗(yàn)結(jié)果共同驗(yàn)證所提出的組合塔架連接段結(jié)構(gòu)的安全可靠,并探討了進(jìn)一步的研究工作和方向。
[Abstract]:With the intensification of the world energy and environment crisis, wind energy as a clean renewable energy has been paid more and more attention by governments and research institutions.At present, the installed capacity of wind turbine is increasing, the height of tower is increasing, the bottom diameter of traditional steel tower is large, the transportation is difficult, the economy is poor and so on.Prestressed concrete-steel wind power tower is a new type of tower which can solve these problems effectively.In order to give full play to the characteristics of the steel and concrete materials and to cooperate with each other, and to ensure the safety and reliability of the sudden point of stiffness of the structure,It is very important to select and design the structure of the concrete-steel connection section of the composite tower and to analyze the force.At present, there are no detailed design data and research reports about the combined tower connection section at home and abroad.In view of the problems existing in the traditional flange connection, this paper proposes a new type of structure with perforated stiffened plate, which is based on the finite element software to analyze its mechanical performance.The basic structural units are selected for the scale model test, which provides a reference for the tower construction of wind power industry in China.This article includes the following main contents: 1.Combined with engineering examples, this paper introduces in detail the structure realization form of a new type of composite tower with perforated stiffened plate, and checks and calculates the bearing capacity of the connection section with reference to the existing research data.In this paper, the elastoplastic numerical simulation of the composite tower structure is carried out by using the ABAQUS finite element analysis software and the concrete plastic constitutive model.According to the simulation results, the stress of concrete and steel members in connection section and the deformation of perforated steel bar of key members are analyzed.After reasonable simplification of the connection section of the composite tower, the model test of its basic elements is carried out, and the local and global forces of the structure under the action of the most unfavorable load combination design value are analyzed.The experimental data of the model verify the feasibility of the structure scheme. 4.The numerical simulation of the test member is carried out and the results of the model test are compared.The safety and reliability of the proposed structure are verified by numerical simulation and model test results, and the further research work and direction are discussed.
【學(xué)位授予單位】：湖南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TU398.9

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 黃建;馮升波;;我國煤炭統(tǒng)計(jì)體系及二氧化碳排放核算研究[J];中國能源;2013年10期

2 嚴(yán)科飛;萬家軍;任偉華;魏玉通;馮新明;王和;;大型風(fēng)電機(jī)組塔架材料的現(xiàn)狀和發(fā)展[J];風(fēng)能;2013年03期

3 楚晨暉;陳少林;柯世堂;;風(fēng)力發(fā)電機(jī)高塔系統(tǒng)的自振特性及參數(shù)分析[J];電力建設(shè);2013年01期

4 黃建峰;;全球風(fēng)力發(fā)電的現(xiàn)狀及展望[J];科技資訊;2011年23期

5 馬慧敏;;制約我國風(fēng)力發(fā)電可持續(xù)發(fā)展的原因分析[J];華北電力技術(shù);2011年03期

6 葉恒梅;葉文海;;淺析橋梁后張法預(yù)應(yīng)力施工質(zhì)量控制要點(diǎn)[J];鄭州鐵路職業(yè)技術(shù)學(xué)院學(xué)報(bào);2011年01期

7 肖林;李小珍;衛(wèi)星;;PBL剪力鍵靜載力學(xué)性能推出試驗(yàn)研究[J];中國鐵道科學(xué);2010年03期

8 馬人樂;劉愷;黃冬平;;反向平衡法蘭試驗(yàn)研究[J];同濟(jì)大學(xué)學(xué)報(bào)(自然科學(xué)版);2009年10期

9 崔冰;趙燦輝;董萌;唐亮;;南京長江第三大橋主塔鋼混結(jié)合段設(shè)計(jì)[J];公路;2009年05期

10 施躍文;高輝;陳鐘;;特大型風(fēng)力發(fā)電機(jī)組技術(shù)現(xiàn)狀與發(fā)展趨勢[J];神華科技;2009年02期

相關(guān)碩士學(xué)位論文 前5條

1 王志生;索塔式風(fēng)力發(fā)電塔架設(shè)計(jì)及優(yōu)化研究[D];內(nèi)蒙古科技大學(xué);2014年

2 牛家興;預(yù)應(yīng)力混凝土—鋼組合風(fēng)電塔架結(jié)構(gòu)性能研究[D];湖南大學(xué);2014年

3 易跨海;風(fēng)力發(fā)電機(jī)塔架結(jié)構(gòu)的設(shè)計(jì)方法研究[D];內(nèi)蒙古科技大學(xué);2013年

4 肖國亮;鋼—混組合結(jié)構(gòu)PBL剪力鍵承載能力試驗(yàn)研究[D];西南交通大學(xué);2011年

5 王振宇;大型風(fēng)力發(fā)電機(jī)塔架彈塑性地震分析與設(shè)計(jì)[D];內(nèi)蒙古科技大學(xué);2009年

，

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