【正文】 ................................................................................................................................36 .........................................................................................................................................................36 ..............................................................................................................................................................37 .....................................................................................................................................................38 ..............................................................................................................................................................39 .....................................................................................................................................................41 .......................................................................................................................................................................43 ..............................................................................................................................................45 ............................................................................................................................................................46 ..........................................................................................................................................47 第九章 焊釘施工 .................................................................................................................. 48 .......................................................................................................................................................................48 ..............................................................................................................................................................48 ........................................................................................................................................49 第十章涂裝施工方案 .............................................................................................................. 50 ............................................................................................................................................................50 ............................................................................................................................................................51 .......................................................................................................................................................51 ..............................................................................................................................................52 ............................................................................................................................................................53 ..............................................................................................................................................61 ..............................................................................................................................................62 第十一章 轉(zhuǎn)運(yùn)及存放 .......................................................................................................... 64 ............................................................................................................................................................64 .....................................................................................................................................................................64 第十二章 現(xiàn)場(chǎng)施工工藝 ........................................................................................................ 66 ............................................................................................................................................................66 ..............................................................................................................................................66 、鋼柱的拼裝 ...................................................................................................................................................67 .......................................................................................................................................................68 、應(yīng)急資源 .................................................................................................................................................................74 、應(yīng)急工作程序 ........................................................................................................................................................77 ..............................................................................................................................................78 、 附表、附圖 .............................................................................................................................................................82 合福 聯(lián)絡(luò)線跨既有滬昆線門式墩鋼箱梁施工專項(xiàng)方案 1 第一章 工程概況 結(jié)構(gòu)體系 本工程為 新建鐵路合福線合肥至福州段西南下行聯(lián)絡(luò)線特大橋 11~14共 4個(gè) 門式墩 。門式墩中心 跨度均為 26m，高 度 在 ～ 26m之 間 。每個(gè)門式墩由 1段鋼梁、 2個(gè)鋼柱組成，鋼梁和鋼柱均為鋼箱結(jié)構(gòu) 形式， 鋼梁截面形式為 179。 。鋼柱截面形式為 179。 。鋼梁和鋼柱鋼材采用 Q345qD，應(yīng)符合《 橋梁用結(jié)構(gòu)鋼 》 GB/T71420xx的規(guī)定。鋼梁與鋼柱整體采用焊接形式連接。焊釘沿 鋼柱外圍布置，同時(shí)鋼梁與鋼柱銜接處底板下緣單側(cè)及支座墊石下部鋼梁頂板布置焊釘。本工程還包括檢修平臺(tái)和臨時(shí)吊點(diǎn)，總重量約為 608噸。 門式墩 構(gòu)造 鋼梁 、鋼柱 均 為箱型結(jié)構(gòu)，由 2塊腹板、 1塊頂板、 1塊底板 、 橫隔板 及縱向筋 組成。 鋼梁 與鋼柱為一體式結(jié)構(gòu)，焊接連接。 鋼柱 插入混凝土柱處均設(shè)置 焊 釘 。 工地連接 鋼梁、鋼柱在工廠焊接制造，工地拼裝后整體吊裝架設(shè)。 焊 釘 采用 Φ 25*12 ML15 圓頭焊釘 ， 應(yīng)符合 《電弧螺柱焊用圓柱頭焊釘》 GB/T1043320xx 的 規(guī)定。 合福 聯(lián)絡(luò)線跨既有滬昆線門式墩鋼箱梁施工專項(xiàng)方案 2 第二章 編制依據(jù) 設(shè)計(jì)圖 紙 中鐵 第 四 勘察設(shè)計(jì)院集團(tuán)有限公司設(shè)計(jì)的《 新建鐵路合福線合肥至福州段施工圖 》圖紙 。 采用規(guī)范及標(biāo)準(zhǔn) 鐵路橋梁鋼結(jié)構(gòu)設(shè)計(jì)規(guī)范 TB1020320xx 鐵路橋涵施工規(guī)范 TZ21320xx 客運(yùn)專線鐵路橋涵工程施工技術(shù)