摘 要关键词：地锚式悬索桥 三跨 钢箱梁Design of Three-span Steel Box Girder Ground Anchored Suspension Bridge of Qiupu River Bridge in ChizhouAbstractKey words: three-span steel box girder of ground-anchored suspension bridge目录摘要 IIIAbstract III第一章 绪论11.1地锚式悬索桥的优点11.2地锚式悬索桥的孔跨布置形式1第二章 方案设计22.1跨径布置22.2顺桥向设计22.3横桥向设计22.4主塔设计3第三章 计算模型53.1计算模型及考虑因素53.2节段划分及截面几何特性计算53.3静力分析说明63.4结构整体刚度73.5反力计算结果8第四章 缆吊系统计算104.1缆索计算104.2吊索计算13第五章 恒载计算175.1一期恒载计算175.2二期恒载计算185.3总恒载效应19第六章 活载计算206.1汽车荷载20第七章 其他荷载计算277.1温度次内力计算277.2支座沉降次内力计算327.3抗风计算36第八章 荷载组合计算408.1荷载组合408.2基本组合计算418

摘 要关键词：地锚式悬索桥 三跨 钢箱梁Design of Three-span Steel Box Girder Ground Anchored Suspension Bridge of Qiupu River Bridge in ChizhouAbstractKey words: three-span steel box girder of ground-anchored suspension bridge目录摘要 IIIAbstract III第一章 绪论11.1地锚式悬索桥的优点11.2地锚式悬索桥的孔跨布置形式1第二章 方案设计22.1跨径布置22.2顺桥向设计22.3横桥向设计22.4主塔设计3第三章 计算模型53.1计算模型及考虑因素53.2节段划分及截面几何特性计算53.3静力分析说明63.4结构整体刚度73.5反力计算结果8第四章 缆吊系统计算104.1缆索计算104.2吊索计算13第五章 恒载计算175.1一期恒载计算175.2二期恒载计算185.3总恒载效应19第六章 活载计算206.1汽车荷载20第七章 其他荷载计算277.1温度次内力计算277.2支座沉降次内力计算327.3抗风计算36第八章 荷载组合计算408.1荷载组合408.2基本组合计算418

摘 要连续钢箱梁桥作为一种构造、安装及制造都极其方便的钢结构桥梁，在世界桥梁建造中具有广泛的应用性，但是当简支箱梁桥的跨径超过四十米时，主跨与边跨所承受的恒载与活载所产生的弯矩会增大，因此，我们在钢箱梁设计中必须将钢箱梁梁截面的尺寸加大，但是这样会耗费大量的额外材料，极大地增加了设计工程的施工难度，使人工成本提高，导致建设成本增大，造成设计的不经济性。。本设计拟采用连续钢箱梁桥，该桥种具有施工灵活，整体结构抗刚强度大，抗地震效应强以及结构轻盈等特点。 关键词：连续钢箱梁桥 钢结构 梁截面AbstractContinuous steel box girder bridge, as a kind of steel structure bridge with extremely convenient structure, installation and manufacture, is widely used in bridge construction in the world. But when the span of simply supported box girder bridge exceeds 40 m

摘 要池州秋浦河桥拟采用自锚式组合梁悬索桥设计方案，其上部结构拟采用组合梁结构体系。桥梁上部结构横断面拟采用扁平钢箱梁截面。依据工程概况与规范要求，选定方案为三跨自锚式组合梁悬索桥，，内部增加。通过查找规范及相关书籍初定主缆的相关尺寸，吊杆的尺寸及间距，扁平钢箱梁的尺寸，桥塔及桥墩的形式及尺寸，之后通过迈达斯软件建立桥梁模型得出桥梁的上部结构及下部结构的内力分析数据，为检验所设计的桥梁是否符合我们所需要的力学性能，受力状态，。最后我们还应该绘制桥梁的主要部分的施工图纸以及工程量及预算分析，进一步完善整个设计过程。关键词 悬索桥 自锚式 扁平钢箱梁 设计Chizhou qiupu river bridge composite beam self-anchored suspension bridge designAbstractQiupu river bridge in chizhou is planned to adopt self-anchored composite beam suspe

摘 要1. Introduction 1.1 Research background. 1.2 Research purpose 1.3 Methods and Procedures of the Study 2. Literature Review 3. A Brief Introduction of Heroism 3.1 Chinese heroism 3.2 American heroism 4. Differences between Chinese and American heroism in movies 4.1 Differences in heroes’ origin 4.2 Differences in heroes’ auxiliary equipment 4.3 Differences in heroes’ responsibility 4.4 Differences in heroes’ social influence 5. Causes of the differences between Chinese and American heroism in movies 5.1 History 5.2 Religion 5.3 Social values................................................................................................. 196. Conclusion References AcknowledgmentsAfter hard work, I finally completed the writing of the thesis. First of all, I would like to thank my thesis supervisor Liu Nonghong. She has given me a lot of help in the process of writing my thesis. Every time I encounter difficulties and doubts, she will give valuable advice.Secondly, I s

摘 要1. Introduction 11.1 About George Orwell 11.2 About Nineteen Eighty-Four 11.3 Need for the study 22. Literature Review 32.1 Totalitarianism 32.2 Dystopia 42.3 Human nature 42.4 Previous studies on Nineteen Eighty-Four 53. Distortion of Human Nature under Totalitarianism 73.1 Distortion of human nature 7 3.1.1 Distortion of human nature in family 7 3.1.2 Distortion of human nature in friendship 8 3.1.3 Distortion of human nature in love 93.2 Causes of distortion of human nature 9 3.2.1 Education 9 3.2.2 Environment 104. Conclusion 11References 12AbstractThe study intends to analyze the distortion of human nature under the totalitarianism in Nineteen Eighty-Four. By analyzing the main characters, the paper probes into the harmfulness of the distortion of the human nature and explores the causes of the distortion of human nature. The main part of the paper consists of two aspects. It discusses the distortion of human nature in family, friendship and love. In the novel, the re

摘 要List of Figures iv1. Introduction 11.1 Research background 11.1.1 The Silk Road Economic Belt and the 21st-Century Maritime Silk Road 11.1.2 Tourism Industry in Yunnan Province 11.2 Need for the study 21.3 Structure of the thesis 32. Literature Review 42.1 The origin of Functional Equivalence Theory 42.2 The value of Functional Equivalence Theory 52.3 The gap of study of Functional Equivalence Theory 63. Methodology 73.1 Research questions 73.2 Research design 73.2.1 Qualitative design 73.2.2 Quantitative design 83.3 Research Procedures 84. Results and Discussion 104.1 The linguistic characteristics of English tourism promotion slogans 104.1.1 Lexical characteristics 104.1.2 Sentence characteristics 144.2 The potency of English tourism promotion slogans 154.2.1 The slogan of understanding easily and concisely 164.2.2 The slogan of catching your attention 174.2.3 The slogan of highlighting its value and tourism features 184.2.4 The slogan of arousing your curiosity and interest

摘 要我国农村低劣生物质量巨大，且利用效率低下，严重制约了新农村的可持续发展。而以农村低劣生物质为代表的生物质材料为原料，采用热裂解技术制备高附加值活性炭将实现低劣生物质的高效资源转化。本文以木屑A为原料，重点考察引入不同热裂解气氛后对活性炭成品的影响，分别从表观BET面积、内部孔道结构、拉曼光谱分析、傅里叶红外光谱分析等方面进行对比，发现二氧化碳气氛的引入能够在碳内造就出丰富孔道。同时通过同步热分析技术发现，其内在机制为：二氧化碳能在700℃下与碳发生生成一氧化碳的反应。进而，借助气相色谱分析裂解全过程，二氧化碳和生物炭的反应计量比接近1，与理想反应接近；且现有管式炉裂解设备的二氧化碳利用率不足25%，制备工艺还有待进一步优化。关键词：生物质; 活性炭; 二氧化碳; 裂解 AbstractThe

摘 要1. Introduction 31.1 Need for the study 41.2 Research purpose 52. Literature Review 62.1 Theoretical foundations 62.2 Related empirical studies 72.2.1 Related empirical studies of automated writing evaluation system 72.2.2 Related empirical studies of writing self-efficacy 72.2.3 Related empirical studies of writing motivation 83. Methodology 93.1 Research questions 93.2 Research subjects 93.3 Questionnaires 93.4 Writing tasks 113.5 Interview 113.6 Data collection 114. Results and Discussion 134.1 Results 134.1.1 Comparison of writing self-efficacy 134.1.2 Comparison of writing motivation 154.1.3. Results of writing performance in the pre-test and post-test 174.1.4. Results of interview 204.2 Discussion 224.2.1 Difference of writing self-efficacy 224.2.2 Difference of writing motivation 234.2.3 Difference of writing performance 235. Conclusion 245.1 Major findings of the study 245.2 Limitations and suggestions for future research 24References 26Acknowledgments 29Appendix I Engl

摘 要1. Introduction 11.1 Life and experience of William Somerset Maugham 11.2 Introduction of the book 12. The Theory on Binary Opposition 32.1 Definition.........................................................................................................32.2 Literature review 33. Binary Opposition in Characterization..................................................................53.1 The contradiction between idealist and realist.................................................53.2 The opposition of rationalist and artist.............................................................83.3 The opposition between spiritual love and mundane love.............................114.Conclusion 14References 15Acknowledgments.......................................................................................................16Abstract William somerset Maugham was a famous British realist writer in the late 19th and early 20th century. His works are charming because they are calm and obj