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高速鐵路45m+70m+45m連續剛構橋設計+CAD圖紙

時間:2019-05-04 21:15來源:畢業論文
采用單箱單室截面形式,通過Midas軟件進行設計及后期驗算,根據橋梁尺寸擬定建立剛構橋的基本模型,然后施加荷載進行內力分析,計算配筋結果,并進行截面驗算

摘要:20世紀以來,中國的高速鐵路取得了高速發展,為經濟建設作出了重要貢獻。連續剛構橋是高速鐵路的極為重要的組成部分,在鐵路交通運輸中起著不可忽視的作用。連續剛構橋既有連續梁橋結構體系的特點:具有結構剛度好、變形小、行車平順舒適、抗震能力強、養護簡易、伸縮縫少、等優點,而且具有T形剛構橋更有利于機械化施工、有利于懸臂澆注、有利于向更大跨徑方向發展。本次橋梁設計依照任務要求,采用單箱單室截面形式,通過Midas軟件進行設計及后期驗算,根據橋梁尺寸擬定建立剛構橋的基本模型,然后施加荷載進行內力分析,計算配筋結果,并進行截面驗算。本文詳細介紹了45m+70m+45m高速鐵路連續剛構橋的截面尺寸擬定、橋梁模型建立、荷載施加、內力分析、截面配筋和橋梁截面驗算等過程,經過截面驗算等表明該設計計算方法正確,截面尺寸設計合理,內力分布合理,橋梁布筋合理,符合任務書的要求。35150
畢業論文關鍵詞:高速鐵路;連續剛構橋;結構分析;過程驗算
The design of a high-speed railway continuous rigid bridge with the main spans of (45+70+45)m
Abstract: Since the 1990s, China's high-speed railway has made considerable progress,made a significant contribution to economic development. As an important part of high-speed railway, bridge plays an irreplaceable role in the rail transport. Continuous girder bridge is a common bridge structure,pre-stressed concrete continuous girder bridge is its main structure form, it has advantages of fewer seams, high beam can be reduced, saving material and stiffness, good integrity, high overload capacity, safety degree, large deck joints, driving comfort, etc. The design basis requirements of the mission statement, using cross-section in the form of single-chamber single box, designed by midas software. According to the size of the bridge intended to establish the basic model of the bridge, and then the internal force analysis, calculation results of reinforcement, conducted a cross-sectional checking. This paper describes the 70m +120 m +70 m-sectional dimensions of the proposed continuous girder bridge design, bridge model, the applied load, and bridge reinforcement section section of the process of checking, etc., through the analysis of checking design calculations show that the method is correct, rational distribution of internal forces, in line with requirements of the design task. 源¥自%六:維;論-文'網=www.aftnzs.live
Keywords: high-speed railway; continuous girder bridge; structural analysis; checking process
目錄
1 緒論    1
1.1高速鐵路連續剛構橋的發展和特點    1
1.1.1 中國高鐵現狀    1
1.1.2 連續剛構橋的特點    1
1.2 預應力混凝土連續梁橋    2
1.2.1連續剛構橋的適用范圍    2
1.2.2 預應力混凝土結構特點    2
1.3 施工方案    3
1.4 Midas簡介    4
1.5 本設計主要內容    4
2 橋跨整體設計和細部尺寸擬定    5
2.1 設計基本資料    5
2.1.1 主要技術指標    5
2.1.2 材料規格    5
2.1.3 設計恒載    5
2.1.4 結構構造    6
2.1.5 設計依據    6
2.2 主梁結構設計    6
2.3 小結    9
3 荷載內力計算    10
3.1 單元劃分    10
3.2 主梁內力計算    12
3.2.1 荷載內力計算    12
3.2.2 效應作用組合    17
3.3 小結    18
4 預應力筋的設計與布置    19
4.1 鋼束估算    19 高速鐵路45m+70m+45m連續剛構橋設計+CAD圖紙:http://www.aftnzs.live/gongcheng/20190504/32967.html
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