大學本科橋梁畢業設計：公路82+154+82m連續剛構橋設計-文庫吧

【正文】 late the internal force, also used AutoCAD and Excel foraided during the design. The entire bridge is discretized in 92beam elements, the construction process is simulated with 23 construction stages, the side spans are closed at first, and then the middle span. After the pletion of the calculation model, analysis of the internal force of the structure, the amount of the steel bar is estimated and the collocation is done. After these processes, prestressing loss and the redundant internal forces are calculated, and then load bination, the bearing capability of beam’ s main controlling section are checked. At last, the main quantities of the fullbridge are estimated. After all of the calculation, the construction drawings (including bridge span arrangement, construction procedure and so on), the translation of a foreign language article are pleted. And the introduction of the design’ s text is made at last. Keywords: prestressed concrete, rigid frame bridge, cantilever construction, design 西南交通大學本科畢業設計 (論文 ) 第 VI 頁 目 錄 第 1章 緒論 ......................................................... 1 ............................................ 1 連續剛構橋回顧與展望 ............................................ 1 連續剛構橋的基本構造 特點 ........................................ 3 橋梁跨徑 ................................................... 4 箱梁根部底板厚度 ........................................... 4 箱梁頂板厚度 ............................................... 4 主梁高度 ................................................... 4 連續梁橋懸臂施工方法介紹 ........................................ 5 施工特點 ................................................... 5 托架與掛籃 ................................................. 5 工藝流程 ................................................... 6 第 2章 橋跨總體布置及結構主要尺寸 ..................................... 7 橋型布置及孔徑劃分 .............................................. 7 截面形式及截面尺寸擬定 .......................................... 7 截面形式 ................................................... 7 ................................................... 7 ................................................... 7 箱梁底板厚度設置 ........................................... 8 腹板厚度設置 ............................................... 8 橫隔板 ..................................................... 8 ........................................ 9 ................................................... 9 具體分段 ................................................... 9 主梁施工方法及注意事項 .................................... 10 施工階段的劃分 ............................................ 11 第 3章 荷載內力計算 .................................................. 14 MIDAS軟件簡介 .................................................. 14 基本參數 ....................................................... 15 計算方法 .................................................. 15 材料信息 .................................................. 15 荷載信息 .................................................. 16 ....................................................... 17 ............................................ 17 .................................................. 18 二期恒載 .................................................. 18 計算模型 .................................................. 18 西南交通大學本科畢業設計 (論文 ) 第 VII 頁 恒載計算結果 .............................................. 19 活載預應力鋼束設計 ................................................ 23 估算預應力鋼束 ................................................ 23 .................................................. 23 預應力鋼束的估計 .......................