艾溪(xi)(xi)(xi)(xi)湖(hu)大(da)(da)橋(qiao)位(wei)于中國江(jiang)西(xi)省南昌(chang)(chang)市,西(xi)起(qi)北京東(dong)路(lu),主(zhu)線以高架橋(qiao)型式由西(xi)往東(dong)跨過艾溪(xi)(xi)(xi)(xi)湖(hu)南路(lu)、艾溪(xi)(xi)(xi)(xi)湖(hu)和昌(chang)(chang)東(dong)大(da)(da)道(dao),接(jie)艾溪(xi)(xi)(xi)(xi)湖(hu)南路(lu)交叉口(kou)(kou)和昌(chang)(chang)東(dong)大(da)(da)道(dao)交叉口(kou)(kou)簡(jian)易立交,東(dong)至紫陽大(da)(da)道(dao)是南昌(chang)(chang)市東(dong)部(bu)的主(zhu)出入口(kou)(kou)。
整體布局
艾溪湖大(da)橋(qiao)(qiao)(qiao)分別由水上主橋(qiao)(qiao)(qiao)、南北(bei)兩道引橋(qiao)(qiao)(qiao)、拱(gong)肋(lei)、橋(qiao)(qiao)(qiao)墩(dun)其立交(jiao)匝道組成,主橋(qiao)(qiao)(qiao)路段呈正西至(zhi)正東方向布置。
設計理念
艾溪湖(hu)大橋采用外傾(qing)式拱橋作為(wei)方案,以對稱傾(qing)斜拱結構與橋外伸出的半圓人行(xing)道等相對,寓(yu)意“張開(kai)雙臂、擁抱藍天”,也象征南昌市(shi)美好(hao)的未來與日同輝。
設計特點
艾溪湖大橋(qiao)主(zhu)橋(qiao)為(wei)(wei)三(san)跨連(lian)(lian)續(xu)外傾(qing)式(shi)思索(suo)面(mian)(mian)下(xia)(xia)城市(shi)鋼(gang)(gang)(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)系(xi)桿拱(gong)(gong)(gong)橋(qiao),上(shang)部結構三(san)跨連(lian)(lian)續(xu)梁拱(gong)(gong)(gong)組(zu)(zu)合結構,中跨主(zhu)體為(wei)(wei)外傾(qing)式(shi)四索(suo)面(mian)(mian)下(xia)(xia)承式(shi)鋼(gang)(gang)(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)系(xi)桿拱(gong)(gong)(gong)橋(qiao);拱(gong)(gong)(gong)肋(lei)豎向為(wei)(wei)疊拱(gong)(gong)(gong)形式(shi),下(xia)(xia)層主(zhu)拱(gong)(gong)(gong)肋(lei)為(wei)(wei)受力拱(gong)(gong)(gong),上(shang)層副拱(gong)(gong)(gong)肋(lei)為(wei)(wei)裝(zhuang)飾拱(gong)(gong)(gong),兩拱(gong)(gong)(gong)間(jian)以(yi)聯系(xi)件連(lian)(lian)接(jie)(jie)。拱(gong)(gong)(gong)肋(lei)為(wei)(wei)矩形鋼(gang)(gang)(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)結構,拱(gong)(gong)(gong)腳底(di)(di)與鋼(gang)(gang)(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)梁頂(ding)面(mian)(mian)齊平并由高強螺(luo)栓連(lian)(lian)接(jie)(jie)在(zai)墩(dun)頂(ding)中橫(heng)(heng)梁上(shang),拱(gong)(gong)(gong)肋(lei)內設鋼(gang)(gang)(gang)(gang)(gang)板加勁肋(lei)。拱(gong)(gong)(gong)肋(lei)外露面(mian)(mian)采用裝(zhuang)飾涂料(liao),顏色(se)采用突出江西革命文化特色(se)的(de)中國紅涂刷涂料(liao)前必須(xu)對(dui)拱(gong)(gong)(gong)肋(lei)表面(mian)(mian)進行(xing)除銹(xiu)處理,以(yi)保證涂料(liao)的(de)耐(nai)久性。橋(qiao)面(mian)(mian)系(xi)為(wei)(wei)三(san)跨連(lian)(lian)續(xu)鋼(gang)(gang)(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)梁結構,主(zhu)跨橫(heng)(heng)向由三(san)個(ge)鋼(gang)(gang)(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)組(zu)(zu)成,即中間(jian)為(wei)(wei)車(che)(che)行(xing)道(dao)(dao)(dao)(dao)鋼(gang)(gang)(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)、兩側(ce)為(wei)(wei)人行(xing)道(dao)(dao)(dao)(dao)鋼(gang)(gang)(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)。車(che)(che)行(xing)道(dao)(dao)(dao)(dao)鋼(gang)(gang)(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)與人行(xing)道(dao)(dao)(dao)(dao)鋼(gang)(gang)(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)間(jian)通過鏤空梁連(lian)(lian)接(jie)(jie);鋼(gang)(gang)(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)梁底(di)(di)面(mian)(mian)無橫(heng)(heng)坡,頂(ding)面(mian)(mian)橫(heng)(heng)坡與道(dao)(dao)(dao)(dao)路(lu)一致。中跨車(che)(che)行(xing)道(dao)(dao)(dao)(dao)鋼(gang)(gang)(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)有(you)五道(dao)(dao)(dao)(dao)縱(zong)向腹(fu)板,邊(bian)跨車(che)(che)行(xing)道(dao)(dao)(dao)(dao)縱(zong)向腹(fu)板有(you)九道(dao)(dao)(dao)(dao),鋼(gang)(gang)(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)梁頂(ding)板采用帶U肋(lei)的(de)正(zheng)交異性板結構,U肋(lei)為(wei)(wei)梯形閉(bi)口肋(lei),鋼(gang)(gang)(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)梁底(di)(di)板采用帶平鋼(gang)(gang)(gang)(gang)(gang)板肋(lei)的(de)正(zheng)交異性板結構,在(zai)主(zhu)跨車(che)(che)行(xing)道(dao)(dao)(dao)(dao)鋼(gang)(gang)(gang)(gang)(gang)梁內、拱(gong)(gong)(gong)腳處布(bu)置有(you)4組(zu)(zu)用于平衡拱(gong)(gong)(gong)腳水平推(tui)力的(de)系(xi)桿,系(xi)桿均采用環氧噴涂非集(ji)束鋼(gang)(gang)(gang)(gang)(gang)絞(jiao)線(xian)(xian)形式(shi),采用非集(ji)束形式(shi)布(bu)置,每組(zu)(zu)鋼(gang)(gang)(gang)(gang)(gang)絞(jiao)線(xian)(xian)外再增設PE防護套;鋼(gang)(gang)(gang)(gang)(gang)絞(jiao)線(xian)(xian)采用單根雙向張(zhang)拉工藝,錨墊(dian)板下(xia)(xia)設置糾(jiu)偏裝(zhuang)置,錨頭防護參照可換式(shi)鋼(gang)(gang)(gang)(gang)(gang)絞(jiao)線(xian)(xian)系(xi)桿的(de)保護罩(zhao)構造。主(zhu)橋(qiao)橋(qiao)墩(dun)采用鋼(gang)(gang)(gang)(gang)(gang)筋(jin)混凝土(tu)方形柱身、鋼(gang)(gang)(gang)(gang)(gang)筋(jin)混凝土(tu)承臺、鉆孔灌注樁基(ji)礎,一個(ge)主(zhu)墩(dun)以(yi)道(dao)(dao)(dao)(dao)路(lu)中心線(xian)(xian)為(wei)(wei)界分(fen)成左右兩個(ge)橋(qiao)墩(dun)。
艾溪湖大橋(qiao)(qiao)線路長2.54千米(mi)(mi)(mi)(mi)(mi),橋(qiao)(qiao)梁(liang)全(quan)長1.54千米(mi)(mi)(mi)(mi)(mi),水上主(zhu)(zhu)橋(qiao)(qiao)總長168米(mi)(mi)(mi)(mi)(mi) ,橋(qiao)(qiao)寬(kuan)(kuan)41米(mi)(mi)(mi)(mi)(mi),其(qi)中(zhong)(zhong),非機動(dong)車(che)(che)(che)道(dao)(dao)3.5米(mi)(mi)(mi)(mi)(mi),人行(xing)(xing)(xing)道(dao)(dao)5.0米(mi)(mi)(mi)(mi)(mi);全(quan)橋(qiao)(qiao)處在(zai)半(ban)徑(jing)10000米(mi)(mi)(mi)(mi)(mi)的豎曲線內,拱(gong)平(ping)(ping)面(mian)向(xiang)外(wai)傾斜比例1:3,主(zhu)(zhu)拱(gong)圈(quan)在(zai)豎直(zhi)平(ping)(ping)面(mian)內投影高(gao)度(du)(du)為(wei)(wei)39米(mi)(mi)(mi)(mi)(mi),裝(zhuang)飾拱(gong)圈(quan)在(zai)最高(gao)點比主(zhu)(zhu)拱(gong)圈(quan)高(gao)7米(mi)(mi)(mi)(mi)(mi),主(zhu)(zhu)拱(gong)肋寬(kuan)(kuan)自(zi)拱(gong)冠(guan)至(zhi)(zhi)(zhi)拱(gong)底(di)由1.5米(mi)(mi)(mi)(mi)(mi)至(zhi)(zhi)(zhi)2.5米(mi)(mi)(mi)(mi)(mi)線性變化,截面(mian)高(gao)度(du)(du)自(zi)拱(gong)冠(guan)至(zhi)(zhi)(zhi)拱(gong)底(di)由1.3米(mi)(mi)(mi)(mi)(mi)至(zhi)(zhi)(zhi)2.0米(mi)(mi)(mi)(mi)(mi),車(che)(che)(che)行(xing)(xing)(xing)道(dao)(dao)鋼(gang)(gang)(gang)箱梁(liang)高(gao)度(du)(du)由道(dao)(dao)路中(zhong)(zhong)心線處2米(mi)(mi)(mi)(mi)(mi)漸(jian)變到車(che)(che)(che)行(xing)(xing)(xing)道(dao)(dao)邊線位置的1.59米(mi)(mi)(mi)(mi)(mi),人行(xing)(xing)(xing)道(dao)(dao)鋼(gang)(gang)(gang)箱梁(liang)高(gao)為(wei)(wei)1.59米(mi)(mi)(mi)(mi)(mi),中(zhong)(zhong)跨車(che)(che)(che)行(xing)(xing)(xing)道(dao)(dao)鋼(gang)(gang)(gang)箱五道(dao)(dao)縱向(xiang)腹板(ban)(ban),分(fen)別(bie)在(zai)道(dao)(dao)路中(zhong)(zhong)心線及距中(zhong)(zhong)心線9.92米(mi)(mi)(mi)(mi)(mi)、20.5米(mi)(mi)(mi)(mi)(mi)位置,厚(hou)度(du)(du)為(wei)(wei)14毫(hao)米(mi)(mi)(mi)(mi)(mi);邊跨車(che)(che)(che)行(xing)(xing)(xing)道(dao)(dao)縱向(xiang)腹板(ban)(ban)有九道(dao)(dao),間(jian)距4.96至(zhi)(zhi)(zhi)5.62米(mi)(mi)(mi)(mi)(mi)。鋼(gang)(gang)(gang)箱梁(liang)頂板(ban)(ban)厚(hou)度(du)(du)為(wei)(wei)16毫(hao)米(mi)(mi)(mi)(mi)(mi),局部頂板(ban)(ban)加厚(hou)至(zhi)(zhi)(zhi)30毫(hao)米(mi)(mi)(mi)(mi)(mi),U肋用8毫(hao)米(mi)(mi)(mi)(mi)(mi)厚(hou)的鋼(gang)(gang)(gang)板(ban)(ban)冷彎成形,鋼(gang)(gang)(gang)箱梁(liang)底(di)板(ban)(ban)厚(hou)14毫(hao)米(mi)(mi)(mi)(mi)(mi)。一個(ge)主(zhu)(zhu)墩(dun)以道(dao)(dao)路中(zhong)(zhong)心線為(wei)(wei)界分(fen)成左右2個(ge)橋(qiao)(qiao)墩(dun),每個(ge)橋(qiao)(qiao)墩(dun)由2個(ge)2.5米(mi)(mi)(mi)(mi)(mi)×2.0米(mi)(mi)(mi)(mi)(mi)方(fang)柱(zhu)組成,2個(ge)方(fang)柱(zhu)下設(she)承臺(tai),承臺(tai)下為(wei)(wei)雙(shuang)排8根直(zhi)徑(jing)1.5米(mi)(mi)(mi)(mi)(mi)樁基(ji),承臺(tai)厚(hou)度(du)(du)2.0米(mi)(mi)(mi)(mi)(mi)。
技術標準
道路等級 城市快(kuai)速路
設計基準 100年
車(che)道設(she)置 雙向六車(che)道
設計速度 60千(qian)米/小時(shi)
縱坡系數 0.5%(橋面)
荷載標準 公路(lu)-Ⅰ級,人群:3.1千(qian)(qian)牛/平方米,路(lu)面:BZZ-100千(qian)(qian)牛
設計風(feng)速(su) 27.2米/秒(miao)
日(ri)照溫差(cha) 溫差(cha)效(xiao)應遵照《公路橋涵設計通用規(gui)范》
抗震等級 Ⅵ度
通航標準 橋下凈空大(da)于2.5米
環境類別 Ⅰ類
艾溪湖大橋的(de)(de)建設不僅是城(cheng)(cheng)市(shi)(shi)交通發(fa)展的(de)(de)需(xu)(xu)要(yao)也是實(shi)施(shi)省市(shi)(shi)發(fa)展戰略,增強南(nan)(nan)昌(chang)(chang)(chang)市(shi)(shi)經濟(ji)輻(fu)射力,把南(nan)(nan)昌(chang)(chang)(chang)打造成現(xian)代制造業基地(di)的(de)(de)需(xu)(xu)要(yao),同(tong)時(shi)(shi)也是當時(shi)(shi)南(nan)(nan)昌(chang)(chang)(chang)市(shi)(shi)舉(ju)辦(ban)第(di)七屆(jie)全(quan)國城(cheng)(cheng)市(shi)(shi)運動(dong)會和招商引資的(de)(de)需(xu)(xu)要(yao),是一條體現(xian)南(nan)(nan)昌(chang)(chang)(chang)“城(cheng)(cheng)湖相融(rong)”意境的(de)(de)景觀(guan)大道(dao),體現(xian)南(nan)(nan)昌(chang)(chang)(chang)山水城(cheng)(cheng)、園林城(cheng)(cheng)、科技城(cheng)(cheng)風貌的(de)(de)景觀(guan)軸(zhou)之(zhi)一。(《城(cheng)(cheng)市(shi)(shi)道(dao)橋與防洪(hong)》 評(ping))
2009年6月(yue)30日,南昌(chang)市有關部門同意艾(ai)溪湖(hu)(hu)大橋工程(cheng)立項;11月(yue)30日,艾(ai)溪湖(hu)(hu)大橋前期建設勘(kan)察(cha)人員對勘(kan)測點(dian)地(di)質構成進行(xing)鉆孔取(qu)樣分析(xi);12月(yue)21日,艾(ai)溪湖(hu)(hu)大橋工程(cheng)開造圍堰。
2010年(nian)1月(yue)(yue)14日(ri),艾溪湖(hu)大(da)橋(qiao)完成(cheng)圍(wei)堰合(he)龍工(gong)(gong)(gong)(gong)程(cheng);4月(yue)(yue)12日(ri),艾溪湖(hu)大(da)橋(qiao)進行(xing)橋(qiao)基(ji)建(jian)設(she);5月(yue)(yue)8日(ri),艾溪湖(hu)橋(qiao)體(ti)動工(gong)(gong)(gong)(gong)興建(jian);8月(yue)(yue)5日(ri),艾溪湖(hu)大(da)橋(qiao)完成(cheng)樁基(ji)建(jian)設(she)工(gong)(gong)(gong)(gong)程(cheng); 10月(yue)(yue)21日(ri),艾溪湖(hu)大(da)橋(qiao)進行(xing)主體(ti)澆筑工(gong)(gong)(gong)(gong)程(cheng); 10月(yue)(yue)23日(ri),艾溪湖(hu)大(da)橋(qiao)完成(cheng)大(da)橋(qiao)下部結構(gou)工(gong)(gong)(gong)(gong)程(cheng); 12月(yue)(yue)30日(ri),艾溪湖(hu)大(da)橋(qiao)進行(xing)橋(qiao)面混凝土(tu)澆灌工(gong)(gong)(gong)(gong)程(cheng);
2011年1月(yue)(yue),艾(ai)溪(xi)(xi)湖大橋(qiao)(qiao)(qiao)完(wan)成(cheng)主橋(qiao)(qiao)(qiao)合龍工程(cheng);3月(yue)(yue)31日,艾(ai)溪(xi)(xi)湖大橋(qiao)(qiao)(qiao)進行斜拱結(jie)構安裝工程(cheng);5月(yue)(yue)3日,艾(ai)溪(xi)(xi)湖大橋(qiao)(qiao)(qiao)完(wan)成(cheng)主橋(qiao)(qiao)(qiao)斜拱鋼結(jie)構安裝;5月(yue)(yue)29日,艾(ai)溪(xi)(xi)湖大橋(qiao)(qiao)(qiao)完(wan)成(cheng)橋(qiao)(qiao)(qiao)梁下部(bu)(bu)和上部(bu)(bu)結(jie)構工程(cheng),進行橋(qiao)(qiao)(qiao)面鋪裝及橋(qiao)(qiao)(qiao)梁附屬工程(cheng)。9月(yue)(yue)9日,艾(ai)溪(xi)(xi)湖大橋(qiao)(qiao)(qiao)竣工,通車運(yun)營。
交通監控
2017年9月15日起,南昌(chang)市公安交管局利用(yong)南昌(chang)市道(dao)路上的(de)動(dong)態監控系統,對艾溪(xi)湖大橋(qiao)和(he)昌(chang)南高架橋(qiao)通行的(de)違法行為進(jin)行全天候抓拍(pai)。
照明設施
2011年9月9日,艾(ai)溪湖橋上各類景觀、照明燈共達12291盞,主橋雙拱上的LED燈亮出各種造型,使其成為一處新的靚麗風景。
票價票制
2017年9月1日(ri),艾溪(xi)湖大(da)橋(qiao)不實(shi)施(shi)收費(fei)制(zhi)度,全橋(qiao)免(mian)費(fei)通行。
通行事項
2017年9月15日起,艾溪(xi)湖大橋限(xian)重55噸,限(xian)重時間為全天候。
技術難題
艾溪湖大橋在主橋上采(cai)用(yong)(yong)了(le)MIDAS2006程(cheng)序進行計算(suan)(suan);結構為空(kong)間(jian)體系,該計算(suan)(suan)中采(cai)用(yong)(yong)了(le)三維有限元模(mo)型(xing)(xing)計算(suan)(suan)。由于鋼箱梁(liang)比較寬(kuan),計算(suan)(suan)模(mo)型(xing)(xing)采(cai)用(yong)(yong)梁(liang)格法進行模(mo)擬(ni)(ni);主梁(liang)、主拱(gong)采(cai)用(yong)(yong)空(kong)間(jian)梁(liang)單元模(mo)擬(ni)(ni),斜拉索采(cai)用(yong)(yong)單元模(mo)擬(ni)(ni)。