【正文】 .................... 35 第三章 橋梁結(jié)構(gòu)檢算中構(gòu)件有效面積計(jì)算 .................................................................................................................. 36 無(wú)綴板受壓桿件有效面積計(jì)算 ................................................................................................................................ 36 有綴板受壓桿件有效面積計(jì)算 ................................................................................................................................ 40 受壓桿件按綴板強(qiáng)度檢算時(shí)桿件有效面積計(jì)算 ................................................................................................. 43 主桁受拉桿件有效面積計(jì)算 ..................................................................................................................................... 45 各桿件連接或接頭的有效面積計(jì)算 ........................................................................................................................ 48 第四章 主桁各桿件影響線面積計(jì)算 ............................................................................................................................... 57 各桿件影響線圖 ........................................................................................................................................................... 57 第五章 主桁桿件承載力檢定計(jì)算 ................................................................................................................................... 61 主桁桿件檢定容許換算均布活載 K 計(jì)算 ............................................................................................................... 61 主桁桿件及連接接頭檢定承載系數(shù) K 值計(jì)算表 ................................................................................................. 61 第六章 主桁節(jié)點(diǎn)板的承載力檢定計(jì)算 .......................................................................................................................... 65 節(jié)點(diǎn)板的抗撕裂強(qiáng)度檢算 ......................................................................................................................................... 65 節(jié)點(diǎn)板的法向應(yīng)力檢定計(jì)算 ..................................................................................................................................... 69 節(jié)點(diǎn)板法向應(yīng)力檢算 .............................................................................................................................................. 74 節(jié)點(diǎn)板水平剪應(yīng)力檢定計(jì)算 ..................................................................................................................................... 75 第七章 縱橫梁檢算 .............................................................................................................................................................. 78 橫梁與主梁 連接驗(yàn)算 .................................................................................................................................................. 78 第八章 橋梁平縱聯(lián)、橫聯(lián)長(zhǎng)細(xì)比檢算 .......................................................................................................................... 80 主桁平縱聯(lián)長(zhǎng)細(xì)比檢算 .............................................................................................................................................. 80 橫聯(lián)長(zhǎng)細(xì)比檢算 ........................................................................................................................................................... 81 第九章 建立有限元分析模型對(duì)結(jié)構(gòu)檢算分析 ............................................................................................................... 84 恒載的施加 .................................................................................................................................................................... 84 橫向附加力的施加 ....................................................................................................................................................... 84 縱向附加力的施加 ....................................................................................................................................................... 86 列車(chē)活載的施加 ........................................................................................................................................................... 86 接觸網(wǎng)桿荷載的施加 .................................................................................................................................................. 88 檢算荷載組合及檢算應(yīng)力標(biāo)準(zhǔn) ................................................................................................................................ 90 中 活載加網(wǎng)桿作用下 MIDAS 軟件檢算 ................................................................................................................... 91 MIDAS 軟件檢算 .......................................................................................................................... 95 第十章 增加橋墩的加固法 ................................................................................................................................................. 101 重載運(yùn)輸下鐵路簡(jiǎn)支鋼桁梁橋加固設(shè)計(jì) 5 加重力式橋墩 ............................................................................................................................................................. 101 對(duì)桿件進(jìn)行驗(yàn)算及加固 ........................................................................................................................................... 106 4H 節(jié)點(diǎn)板加固后的檢算 ......................................................................................................................................... 110 施工方案 ...................................................................................................................................................................... 113 小結(jié) ............................................................................................................................................................................... 117 參考文獻(xiàn) .................................................................................................................................................................................. 118 答 謝 .........................................................................................