【正文】 .............. 24 桿件控 制內(nèi)力的計(jì)算 .................................................................................... 25 計(jì)算模型 .................................................................................................. 25 算法設(shè)計(jì)概述 ........................................................................................... 25 矩陣位移法概述 ............................................................................................ 25 矩陣位移法具體過(guò)程 .................................................................................... 26 結(jié)構(gòu)離散化： ........................................................................................... 26 單元分析 .................................................................................................. 27 整體分析 .................................................................................................. 30 位移邊界條件的引入 ................................................................................ 31 求解結(jié)構(gòu)剛度方程 ................................................................................... 31 內(nèi)力計(jì)算 .................................................................................................. 32 ZK 活載加載的計(jì)算 ..................................................................................... 32 程序說(shuō)明 ........................................................................................................ 34 程序使用說(shuō)明 ................................................................................................ 37 程序使用步驟 .......................................................................................... 37 輸入數(shù)據(jù)表格式說(shuō)明 ............................................................................... 37 主桁桿件截面設(shè)計(jì) ........................................................................................ 37 截面尺寸擬定 .......................................................................................... 37 建立輸入數(shù)據(jù)文件 ................................................................................... 38 截面尺寸設(shè)計(jì)結(jié)果 ................................................................................... 38 截面幾何特性計(jì)算數(shù)據(jù) ............................................................................ 39 主桁桿件主力作用下控制內(nèi)力 ................................................................. 42 主桁桿件截面剛度、強(qiáng)度、穩(wěn)定性檢算 ................................................... 44 主桁桿件截面疲勞檢算 ............................................................................ 51 主桁桿件承載能力以及螺栓數(shù)目計(jì)算 ....................................................... 55 第 5 章 剛度驗(yàn)算及上拱度設(shè)置 ................................................................................ 58 橫向及豎向剛度的驗(yàn)算 ................................................................................ 58 橫向剛度驗(yàn)算 .......................................................................................... 58 豎向剛度驗(yàn)算 .......................................................................................... 58 上拱度的設(shè)置 ................................................................................................ 58 上拱度設(shè)計(jì)依據(jù) ...................................................................................... 58 設(shè)置上拱度的幾何方法和實(shí)際上拱度 ....................................................... 59 第 6 章 橋面系設(shè)計(jì) .................................................................................................... 62 縱梁設(shè)計(jì) ...................................................................................................... 62 中南大學(xué)本科畢 業(yè)設(shè)計(jì) 目錄 縱梁內(nèi)力計(jì)算 ........................................................................................ 62 縱梁截面設(shè)計(jì)與內(nèi)力檢算 ........................................................................ 65 縱梁的總體穩(wěn)定與局部穩(wěn)定檢算 .............................................................. 69 縱梁翼緣焊縫計(jì)算 ................................................................................... 71 縱梁與橫梁的連接計(jì)算 .......................................................................... 71 橫梁設(shè)計(jì) ........................................................................................................ 73 中間橫梁內(nèi)力計(jì)算 ................................................................................. 73 端橫梁內(nèi)力計(jì)算 ............................................................................................ 78 、起重橫梁內(nèi)力 ........................................................................................ 78 橫梁截面設(shè)計(jì)與強(qiáng)度的檢算 ........................................................................ 80 、橫梁截面設(shè)計(jì)與強(qiáng)度檢算 ....................................................................... 80 橫梁的總體與局部穩(wěn)定 ............................................................................ 82 橫梁翼緣焊縫計(jì)算 ................................................................................... 83 橫梁與主桁的聯(lián)接計(jì)算 ............................................................................ 83 第 7 章 節(jié)點(diǎn)板設(shè)計(jì) .................................................................................................... 84 8 號(hào)節(jié)點(diǎn)設(shè)計(jì) .................................................................................................. 84 弦桿拼接計(jì)算 .......................................................................................... 84 節(jié)點(diǎn)板設(shè)計(jì) ............................................................................................. 86 節(jié)點(diǎn)板強(qiáng)度檢算 ...................................................................................... 87 27 號(hào)節(jié)點(diǎn)設(shè)計(jì) ................................................................................................ 92 弦桿拼接計(jì)算 .......................................................................................... 93 節(jié)點(diǎn)板設(shè)計(jì) ............................................................................................. 94 節(jié)點(diǎn)板強(qiáng)度檢算 ...................................................................................... 95 53 號(hào) 節(jié)點(diǎn)設(shè)計(jì) ......................................................................