【正文】 . III 目錄 第一章 概 述 ............................................................ 1 、設(shè)計(jì)依據(jù) ............................................................ 1 、技術(shù)標(biāo)準(zhǔn) ............................................................ 1 、地質(zhì)條件 ............................................................ 1 、設(shè)計(jì)參數(shù) ............................................................ 3 、設(shè)計(jì)規(guī)范： .......................................................... 3 第二章 水文計(jì)算 ......................................................... 5 .............................................................. 5 水文計(jì)算 ............................................................. 5 第三章 橋型方案比選 ...................................................... 8 、構(gòu)思宗旨 ............................................................ 8 、比選標(biāo)準(zhǔn)： .......................................................... 8 、比選方案 ............................................................ 8 、方案點(diǎn)評 ........................................................... 10 、方案確定 ： ......................................................... 10 第四章 斜拉橋構(gòu)造設(shè)計(jì) ................................................... 11 總體設(shè)計(jì) ............................................................ 11 主梁設(shè)計(jì) ............................................................ 11 索塔設(shè)計(jì) ............................................................ 23 基礎(chǔ)設(shè)計(jì) ............................................................ 24 斜拉索設(shè)計(jì) .......................................................... 24 IV 輔助墩基礎(chǔ)設(shè)計(jì) ...................................................... 25 邊跨臨時(shí)壓重設(shè)計(jì) .................................................... 25 附屬設(shè)施設(shè)計(jì) ........................................................ 25 、橋面鋪裝、排水和防水層 ............................................. 26 第五章 模型建立 ......................................................... 27 荷載 ................................................................ 27 計(jì)算方法概述 ........................................................ 28 模型建立 ............................................................ 29 模型分塊 ............................................................ 29 主梁及索塔截面特性 .................................................. 31 初索力計(jì)算 .......................................................... 31 第六章 內(nèi)力分析 ......................................................... 33 主梁和索塔控制斷面內(nèi)力和應(yīng)力值 ...................................... 33 主塔主要內(nèi)力圖 ...................................................... 35 ............................................ 錯(cuò)誤 !未定義書簽。斜拉橋；拱橋；懸索橋；主推薦設(shè)計(jì)方案；結(jié)構(gòu)分析；驗(yàn)算 。 本設(shè)計(jì)以斜拉橋設(shè)計(jì)基本理論和靜動(dòng)力分析為理論基礎(chǔ)，以成功修建的斜拉橋?yàn)槔?，根?jù)橋梁的位置、布置形式，擬定橋梁的跨度、矢高、錨索傾角、橋塔高度和截面、塔基形式、錨碇構(gòu)造等，說明選擇相關(guān)參數(shù)的過程、依據(jù)、和考慮的主要因素，然后進(jìn)行橋面系、拉索、橋塔、錨碇等具體尺寸設(shè)計(jì)、配筋和驗(yàn)算。由 于斜拉橋是超靜定結(jié)構(gòu)，計(jì)算較為煩瑣，故在該設(shè)計(jì)中，結(jié)構(gòu)單元?jiǎng)澐趾蛢?nèi)力計(jì)算采用專業(yè)設(shè)計(jì)軟件 MAIDAS 進(jìn)行，計(jì)算方法為有限元法，使設(shè)計(jì)工作量大大的簡化，內(nèi)力求出后，根據(jù)橋梁規(guī)范進(jìn)行結(jié)構(gòu)內(nèi)力組合。 II Abstract The subject is performed in according with the basic theory of Cable stayed bridge dynamic and stationary analysis theory. The span, main cables tower and cables are designed in line with the arrangement of span. The way choose the parameters and decisive elements are illustrated. Thereafter, the sizes of deck system, main cables, end link, cable bands, storm system and anchorages are designed. As a highly redundant system, it is inevitably brings us much difficult in the analysis of the internal forces by hand. The puter program, which named MAIDAS are used in course of calculation in order to simply the work. When the internal stress is carried out, the arrangement of internal stress is implemented in light of bridge specification. After checking the items required in the code for the acrosssections, we can know the feasibility of the design. the process of designment： According to the design assignment and thepresent Highway Bridge Specifications, Take the geological and the landform of the bridge site for further analysis, after preliminary selection, three bridge type schemas are presented, they are Cablestayed bridge, Suspension bridge and Arch bridge. Comparing their characters prehensively, the Cable stayed bridge is selected as the main design scheme by the philosophy of bridge design as “Practicability, Economy, Security, Beauty”.Through drawing up of structure’s dimension, internal force calculation of dead and living load, steel beam stress and strength calculation, fatigue stress calculation, the whole bridge strength calculation, checking putation of cable stress and fatigue stress, living load distortion, drawing up of steel beam’s dimension. The conclusion can be drawn that the design is up to the assignment. Key word: Design 。 ............................................ 錯(cuò)誤 !未定義書簽。 第九章 強(qiáng)度驗(yàn)算 .......................................... 錯(cuò)誤 !未定義書簽。 容許變形 ............................................. 錯(cuò)誤 !未定義書簽。 預(yù)算編制的依據(jù) ....................................... 錯(cuò)誤 !未定義書簽。 XX市建委會(huì)議紀(jì)要長建紀(jì)字【 2020】 222 號關(guān)于研究 XX市 XX大橋 設(shè)計(jì)要點(diǎn)的會(huì)議紀(jì)要。冬季漫長，氣候比較干燥；春秋較短，稍較溫濕，宜植被生長。其巖性或礦物成份由花崗巖類或砂頁巖、石灰?guī)r以及其他暗色礦物構(gòu)成。砂礫顆粒強(qiáng)度較高，磨圓或磨光程度良好。 混和巖：強(qiáng)風(fēng)化，碎石狀。 混和巖：褐黃色，強(qiáng)風(fēng)化，節(jié)理裂縫發(fā)育，巖石破碎，碎石狀，不能提取巖芯。 、 設(shè)計(jì)參數(shù) 管道摩阻系數(shù) ： μ＝ 管道偏差系數(shù) ： K＝ ，一端錨具變形引起的鋼束回縮量：6mm； 鋼絞線松馳率 %；風(fēng) 荷 載： 設(shè)計(jì)風(fēng)速 30m/s，地震荷載：地震基本烈度Ⅶ度，按Ⅷ度設(shè)防；支座不均勻沉降： . 、 設(shè)計(jì) 規(guī)范： 采用規(guī)范 ⑴ 《公路工程技術(shù)標(biāo)準(zhǔn)》（ JTJ00197） ⑵ 《公路橋涵設(shè)計(jì)通用規(guī)范》（ JTJ02189） ⑶ 《公路鋼筋混凝土及預(yù)應(yīng)力混凝土橋涵設(shè)計(jì)規(guī)范》（ JTJ02385） ⑷ 《公路橋涵鋼結(jié)構(gòu)及木結(jié)構(gòu)設(shè)計(jì)規(guī)范》（ JTJ02586） ⑸《公路斜拉橋設(shè)計(jì)規(guī)范（試行）》（ JTJ02796） ⑹ 《公路橋涵地基與基礎(chǔ)技術(shù)規(guī)范》（ JTJ02485） ⑺ 《公路工程抗震設(shè)計(jì)規(guī)范》（ JTJ00489） ⑻ 《公路橋涵施工技術(shù)規(guī)范》（ JTJ0412020） ⑼ 《高速公路交通安全設(shè)施設(shè)計(jì)與施工技術(shù)規(guī)范》（ JTJ07494） ⑽ 《公路橋位勘測設(shè)計(jì)規(guī)范》（ JTJ06291） 參考規(guī)范 ⑴ 《 British Standard BS5400》 沈陽建筑大學(xué)畢業(yè)設(shè)計(jì) 4 ⑵ 《 Standard Specifications for Highway Bridges》 ， 1996. ⑶ 《日本高等級 橋梁 設(shè) 計(jì)規(guī)范》第二冊， 1990. 沈陽建筑大學(xué)畢業(yè)設(shè)計(jì) 5 第 二