基本介紹

艾(ai)(ai)溪(xi)湖大(da)橋位于中國江西省南昌(chang)(chang)市(shi)，西起(qi)北京東(dong)(dong)(dong)(dong)路(lu)(lu)，主線以高架橋型式由西往東(dong)(dong)(dong)(dong)跨過艾(ai)(ai)溪(xi)湖南路(lu)(lu)、艾(ai)(ai)溪(xi)湖和昌(chang)(chang)東(dong)(dong)(dong)(dong)大(da)道(dao)，接艾(ai)(ai)溪(xi)湖南路(lu)(lu)交叉口(kou)和昌(chang)(chang)東(dong)(dong)(dong)(dong)大(da)道(dao)交叉口(kou)簡易立(li)交，東(dong)(dong)(dong)(dong)至(zhi)紫陽大(da)道(dao)是南昌(chang)(chang)市(shi)東(dong)(dong)(dong)(dong)部的主出入口(kou)。

建筑設計

建筑結構

整體布局

艾溪湖大橋(qiao)(qiao)(qiao)分別由水上主(zhu)橋(qiao)(qiao)(qiao)、南北兩道(dao)引橋(qiao)(qiao)(qiao)、拱肋、橋(qiao)(qiao)(qiao)墩其立交匝道(dao)組(zu)成，主(zhu)橋(qiao)(qiao)(qiao)路段呈(cheng)正西至正東方向布(bu)置。

設計理念

艾溪湖大(da)橋采用外傾式(shi)拱橋作為方案，以(yi)對(dui)稱傾斜拱結(jie)構與(yu)橋外伸出的半圓(yuan)人行道等相對(dui)，寓意“張開雙臂、擁抱藍天”，也象征(zheng)南昌(chang)市(shi)美好的未來與(yu)日同輝。

設計特點

艾溪(xi)湖(hu)大橋主(zhu)(zhu)(zhu)橋為(wei)三(san)跨(kua)(kua)連續外(wai)(wai)傾式(shi)(shi)思索面下(xia)(xia)城市(shi)鋼(gang)(gang)(gang)箱(xiang)(xiang)系桿拱(gong)(gong)(gong)(gong)(gong)(gong)橋，上部結(jie)構(gou)三(san)跨(kua)(kua)連續梁(liang)拱(gong)(gong)(gong)(gong)(gong)(gong)組(zu)合結(jie)構(gou)，中(zhong)跨(kua)(kua)主(zhu)(zhu)(zhu)體為(wei)外(wai)(wai)傾式(shi)(shi)四索面下(xia)(xia)承式(shi)(shi)鋼(gang)(gang)(gang)箱(xiang)(xiang)系桿拱(gong)(gong)(gong)(gong)(gong)(gong)橋；拱(gong)(gong)(gong)(gong)(gong)(gong)肋(lei)(lei)豎向為(wei)疊拱(gong)(gong)(gong)(gong)(gong)(gong)形(xing)(xing)(xing)式(shi)(shi)，下(xia)(xia)層(ceng)主(zhu)(zhu)(zhu)拱(gong)(gong)(gong)(gong)(gong)(gong)肋(lei)(lei)為(wei)受(shou)力拱(gong)(gong)(gong)(gong)(gong)(gong)，上層(ceng)副拱(gong)(gong)(gong)(gong)(gong)(gong)肋(lei)(lei)為(wei)裝(zhuang)飾拱(gong)(gong)(gong)(gong)(gong)(gong)，兩拱(gong)(gong)(gong)(gong)(gong)(gong)間(jian)(jian)以聯系件連接。拱(gong)(gong)(gong)(gong)(gong)(gong)肋(lei)(lei)為(wei)矩形(xing)(xing)(xing)鋼(gang)(gang)(gang)箱(xiang)(xiang)結(jie)構(gou)，拱(gong)(gong)(gong)(gong)(gong)(gong)腳(jiao)底與鋼(gang)(gang)(gang)箱(xiang)(xiang)梁(liang)頂面齊平并由高強螺栓(shuan)連接在墩(dun)(dun)頂中(zhong)橫(heng)梁(liang)上，拱(gong)(gong)(gong)(gong)(gong)(gong)肋(lei)(lei)內設(she)鋼(gang)(gang)(gang)板(ban)(ban)(ban)加勁肋(lei)(lei)。拱(gong)(gong)(gong)(gong)(gong)(gong)肋(lei)(lei)外(wai)(wai)露面采用(yong)(yong)裝(zhuang)飾涂(tu)料(liao)，顏色采用(yong)(yong)突出江西革命文化(hua)特(te)色的中(zhong)國紅(hong)涂(tu)刷涂(tu)料(liao)前必須對拱(gong)(gong)(gong)(gong)(gong)(gong)肋(lei)(lei)表面進行(xing)(xing)(xing)除銹處理，以保(bao)證涂(tu)料(liao)的耐(nai)久性。橋面系為(wei)三(san)跨(kua)(kua)連續鋼(gang)(gang)(gang)箱(xiang)(xiang)梁(liang)結(jie)構(gou)，主(zhu)(zhu)(zhu)跨(kua)(kua)橫(heng)向由三(san)個鋼(gang)(gang)(gang)箱(xiang)(xiang)組(zu)成(cheng)，即中(zhong)間(jian)(jian)為(wei)車行(xing)(xing)(xing)道(dao)(dao)(dao)鋼(gang)(gang)(gang)箱(xiang)(xiang)、兩側為(wei)人行(xing)(xing)(xing)道(dao)(dao)(dao)鋼(gang)(gang)(gang)箱(xiang)(xiang)。車行(xing)(xing)(xing)道(dao)(dao)(dao)鋼(gang)(gang)(gang)箱(xiang)(xiang)與人行(xing)(xing)(xing)道(dao)(dao)(dao)鋼(gang)(gang)(gang)箱(xiang)(xiang)間(jian)(jian)通過鏤空梁(liang)連接；鋼(gang)(gang)(gang)箱(xiang)(xiang)梁(liang)底面無橫(heng)坡，頂面橫(heng)坡與道(dao)(dao)(dao)路一致。中(zhong)跨(kua)(kua)車行(xing)(xing)(xing)道(dao)(dao)(dao)鋼(gang)(gang)(gang)箱(xiang)(xiang)有(you)(you)(you)五道(dao)(dao)(dao)縱(zong)(zong)向腹(fu)板(ban)(ban)(ban)，邊跨(kua)(kua)車行(xing)(xing)(xing)道(dao)(dao)(dao)縱(zong)(zong)向腹(fu)板(ban)(ban)(ban)有(you)(you)(you)九道(dao)(dao)(dao)，鋼(gang)(gang)(gang)箱(xiang)(xiang)梁(liang)頂板(ban)(ban)(ban)采用(yong)(yong)帶U肋(lei)(lei)的正交異性板(ban)(ban)(ban)結(jie)構(gou)，U肋(lei)(lei)為(wei)梯(ti)形(xing)(xing)(xing)閉口肋(lei)(lei)，鋼(gang)(gang)(gang)箱(xiang)(xiang)梁(liang)底板(ban)(ban)(ban)采用(yong)(yong)帶平鋼(gang)(gang)(gang)板(ban)(ban)(ban)肋(lei)(lei)的正交異性板(ban)(ban)(ban)結(jie)構(gou)，在主(zhu)(zhu)(zhu)跨(kua)(kua)車行(xing)(xing)(xing)道(dao)(dao)(dao)鋼(gang)(gang)(gang)梁(liang)內、拱(gong)(gong)(gong)(gong)(gong)(gong)腳(jiao)處布置(zhi)有(you)(you)(you)4組(zu)用(yong)(yong)于平衡拱(gong)(gong)(gong)(gong)(gong)(gong)腳(jiao)水平推力的系桿，系桿均采用(yong)(yong)環氧噴涂(tu)非集束鋼(gang)(gang)(gang)絞(jiao)(jiao)線(xian)形(xing)(xing)(xing)式(shi)(shi)，采用(yong)(yong)非集束形(xing)(xing)(xing)式(shi)(shi)布置(zhi)，每(mei)組(zu)鋼(gang)(gang)(gang)絞(jiao)(jiao)線(xian)外(wai)(wai)再增設(she)PE防(fang)(fang)護(hu)套；鋼(gang)(gang)(gang)絞(jiao)(jiao)線(xian)采用(yong)(yong)單根雙向張(zhang)拉工藝，錨墊板(ban)(ban)(ban)下(xia)(xia)設(she)置(zhi)糾偏裝(zhuang)置(zhi)，錨頭防(fang)(fang)護(hu)參照可換式(shi)(shi)鋼(gang)(gang)(gang)絞(jiao)(jiao)線(xian)系桿的保(bao)護(hu)罩構(gou)造(zao)。主(zhu)(zhu)(zhu)橋橋墩(dun)(dun)采用(yong)(yong)鋼(gang)(gang)(gang)筋(jin)混凝土(tu)方形(xing)(xing)(xing)柱身、鋼(gang)(gang)(gang)筋(jin)混凝土(tu)承臺、鉆孔灌注樁基礎(chu)，一個主(zhu)(zhu)(zhu)墩(dun)(dun)以道(dao)(dao)(dao)路中(zhong)心線(xian)為(wei)界(jie)分成(cheng)左右兩個橋墩(dun)(dun)。

設計參數

艾溪湖大橋(qiao)(qiao)(qiao)線(xian)路(lu)(lu)長2.54千(qian)米(mi)(mi)(mi)(mi)(mi)，橋(qiao)(qiao)(qiao)梁(liang)全長1.54千(qian)米(mi)(mi)(mi)(mi)(mi)，水上主橋(qiao)(qiao)(qiao)總長168米(mi)(mi)(mi)(mi)(mi) ，橋(qiao)(qiao)(qiao)寬(kuan)41米(mi)(mi)(mi)(mi)(mi)，其中(zhong)(zhong)(zhong)(zhong)，非機動車道(dao)3.5米(mi)(mi)(mi)(mi)(mi)，人(ren)行(xing)道(dao)5.0米(mi)(mi)(mi)(mi)(mi)；全橋(qiao)(qiao)(qiao)處在(zai)半(ban)徑10000米(mi)(mi)(mi)(mi)(mi)的豎曲線(xian)內，拱(gong)平面(mian)向外傾斜比例1:3，主拱(gong)圈(quan)在(zai)豎直平面(mian)內投(tou)影高(gao)度(du)為(wei)39米(mi)(mi)(mi)(mi)(mi)，裝飾拱(gong)圈(quan)在(zai)最高(gao)點比主拱(gong)圈(quan)高(gao)7米(mi)(mi)(mi)(mi)(mi)，主拱(gong)肋寬(kuan)自拱(gong)冠(guan)至(zhi)(zhi)拱(gong)底(di)由(you)1.5米(mi)(mi)(mi)(mi)(mi)至(zhi)(zhi)2.5米(mi)(mi)(mi)(mi)(mi)線(xian)性變化，截面(mian)高(gao)度(du)自拱(gong)冠(guan)至(zhi)(zhi)拱(gong)底(di)由(you)1.3米(mi)(mi)(mi)(mi)(mi)至(zhi)(zhi)2.0米(mi)(mi)(mi)(mi)(mi)，車行(xing)道(dao)鋼(gang)(gang)箱(xiang)梁(liang)高(gao)度(du)由(you)道(dao)路(lu)(lu)中(zhong)(zhong)(zhong)(zhong)心(xin)(xin)線(xian)處2米(mi)(mi)(mi)(mi)(mi)漸(jian)變到車行(xing)道(dao)邊線(xian)位置的1.59米(mi)(mi)(mi)(mi)(mi)，人(ren)行(xing)道(dao)鋼(gang)(gang)箱(xiang)梁(liang)高(gao)為(wei)1.59米(mi)(mi)(mi)(mi)(mi)，中(zhong)(zhong)(zhong)(zhong)跨車行(xing)道(dao)鋼(gang)(gang)箱(xiang)五道(dao)縱(zong)向腹(fu)板，分別在(zai)道(dao)路(lu)(lu)中(zhong)(zhong)(zhong)(zhong)心(xin)(xin)線(xian)及距中(zhong)(zhong)(zhong)(zhong)心(xin)(xin)線(xian)9.92米(mi)(mi)(mi)(mi)(mi)、20.5米(mi)(mi)(mi)(mi)(mi)位置，厚(hou)(hou)(hou)(hou)度(du)為(wei)14毫(hao)米(mi)(mi)(mi)(mi)(mi)；邊跨車行(xing)道(dao)縱(zong)向腹(fu)板有九道(dao)，間距4.96至(zhi)(zhi)5.62米(mi)(mi)(mi)(mi)(mi)。鋼(gang)(gang)箱(xiang)梁(liang)頂板厚(hou)(hou)(hou)(hou)度(du)為(wei)16毫(hao)米(mi)(mi)(mi)(mi)(mi)，局部(bu)頂板加厚(hou)(hou)(hou)(hou)至(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)(hou)(hou)(hou)的鋼(gang)(gang)板冷彎成形，鋼(gang)(gang)箱(xiang)梁(liang)底(di)板厚(hou)(hou)(hou)(hou)14毫(hao)米(mi)(mi)(mi)(mi)(mi)。一(yi)個主墩以道(dao)路(lu)(lu)中(zhong)(zhong)(zhong)(zhong)心(xin)(xin)線(xian)為(wei)界(jie)分成左右2個橋(qiao)(qiao)(qiao)墩，每個橋(qiao)(qiao)(qiao)墩由(you)2個2.5米(mi)(mi)(mi)(mi)(mi)×2.0米(mi)(mi)(mi)(mi)(mi)方柱(zhu)組成，2個方柱(zhu)下(xia)設(she)承臺，承臺下(xia)為(wei)雙排8根直徑1.5米(mi)(mi)(mi)(mi)(mi)樁基，承臺厚(hou)(hou)(hou)(hou)度(du)2.0米(mi)(mi)(mi)(mi)(mi)。

技術標準

道路等級 城(cheng)市(shi)快速路

設計基準 100年

車(che)道(dao)設置 雙(shuang)向六車(che)道(dao)

設計速度 60千米/小時

縱坡系數 0.5%（橋面）

荷載標準(zhun) 公路-Ⅰ級(ji)，人群：3.1千牛(niu)(niu)/平方米，路面：BZZ-100千牛(niu)(niu)

設計風速 27.2米/秒

日(ri)照(zhao)溫差 溫差效應遵照(zhao)《公路橋(qiao)涵設計通用規范》

抗震等級 Ⅵ度

通航(hang)標準 橋(qiao)下(xia)凈空大于2.5米

環境類別 Ⅰ類

功能價值

艾溪湖(hu)大橋的(de)建設不僅是城(cheng)(cheng)市(shi)(shi)交通發(fa)展(zhan)的(de)需要也是實施省(sheng)市(shi)(shi)發(fa)展(zhan)戰略，增強南昌市(shi)(shi)經(jing)濟輻射力，把南昌打造成現代(dai)制造業基地的(de)需要，同時也是當時南昌市(shi)(shi)舉辦第七(qi)屆全國(guo)城(cheng)(cheng)市(shi)(shi)運(yun)動會和招(zhao)商引資的(de)需要，是一條(tiao)體現南昌“城(cheng)(cheng)湖(hu)相融”意境(jing)的(de)景觀(guan)大道，體現南昌山水城(cheng)(cheng)、園(yuan)林(lin)城(cheng)(cheng)、科技城(cheng)(cheng)風貌(mao)的(de)景觀(guan)軸之一。（《城(cheng)(cheng)市(shi)(shi)道橋與(yu)防洪》 評）

建設沿革

2009年6月(yue)(yue)30日，南昌(chang)市有關部(bu)門(men)同意(yi)艾溪(xi)湖(hu)大(da)橋(qiao)工程立項(xiang)；11月(yue)(yue)30日，艾溪(xi)湖(hu)大(da)橋(qiao)前期建設勘察人(ren)員對(dui)勘測點地質(zhi)構成(cheng)進行鉆孔取(qu)樣分析；12月(yue)(yue)21日，艾溪(xi)湖(hu)大(da)橋(qiao)工程開造(zao)圍堰。

2010年1月(yue)(yue)14日(ri)，艾(ai)(ai)溪湖(hu)大(da)橋(qiao)(qiao)(qiao)完成圍(wei)堰合龍工(gong)程(cheng)(cheng)；4月(yue)(yue)12日(ri)，艾(ai)(ai)溪湖(hu)大(da)橋(qiao)(qiao)(qiao)進(jin)行(xing)橋(qiao)(qiao)(qiao)基建設；5月(yue)(yue)8日(ri)，艾(ai)(ai)溪湖(hu)橋(qiao)(qiao)(qiao)體(ti)動工(gong)興建；8月(yue)(yue)5日(ri)，艾(ai)(ai)溪湖(hu)大(da)橋(qiao)(qiao)(qiao)完成樁基建設工(gong)程(cheng)(cheng)； 10月(yue)(yue)21日(ri)，艾(ai)(ai)溪湖(hu)大(da)橋(qiao)(qiao)(qiao)進(jin)行(xing)主體(ti)澆筑工(gong)程(cheng)(cheng)； 10月(yue)(yue)23日(ri)，艾(ai)(ai)溪湖(hu)大(da)橋(qiao)(qiao)(qiao)完成大(da)橋(qiao)(qiao)(qiao)下(xia)部結構工(gong)程(cheng)(cheng)； 12月(yue)(yue)30日(ri)，艾(ai)(ai)溪湖(hu)大(da)橋(qiao)(qiao)(qiao)進(jin)行(xing)橋(qiao)(qiao)(qiao)面混凝土(tu)澆灌工(gong)程(cheng)(cheng)；

2011年1月(yue)，艾溪(xi)(xi)湖(hu)大(da)橋(qiao)完(wan)成主(zhu)橋(qiao)合龍工(gong)程；3月(yue)31日，艾溪(xi)(xi)湖(hu)大(da)橋(qiao)進(jin)行(xing)斜拱結(jie)構(gou)安(an)裝工(gong)程；5月(yue)3日，艾溪(xi)(xi)湖(hu)大(da)橋(qiao)完(wan)成主(zhu)橋(qiao)斜拱鋼結(jie)構(gou)安(an)裝；5月(yue)29日，艾溪(xi)(xi)湖(hu)大(da)橋(qiao)完(wan)成橋(qiao)梁下部(bu)和上(shang)部(bu)結(jie)構(gou)工(gong)程，進(jin)行(xing)橋(qiao)面鋪裝及(ji)橋(qiao)梁附屬工(gong)程。9月(yue)9日，艾溪(xi)(xi)湖(hu)大(da)橋(qiao)竣工(gong)，通(tong)車(che)運營。

活動及其他

設備設施

交通監控

2017年9月(yue)15日起，南(nan)昌(chang)市公安交(jiao)管局(ju)利用南(nan)昌(chang)市道路(lu)上的動態(tai)監控系統，對艾溪(xi)湖(hu)大橋和昌(chang)南(nan)高架橋通行的違法行為進行全天候抓拍。

照明設施

2011年9月9日，艾(ai)溪湖橋上各(ge)(ge)類景觀(guan)、照明燈共達12291盞，主橋雙拱上的LED燈亮出各(ge)(ge)種造型(xing)，使其成為(wei)一處新的靚麗風(feng)景。

運營情況

票價票制

2017年(nian)9月1日，艾(ai)溪湖大橋(qiao)(qiao)不實施收(shou)費制度，全橋(qiao)(qiao)免費通(tong)行。

通行事項

2017年(nian)9月(yue)15日起(qi)，艾溪湖大橋限重55噸，限重時間為全(quan)天候。

建設成果

技術難題

艾(ai)溪湖(hu)大橋(qiao)在(zai)主(zhu)橋(qiao)上采(cai)用(yong)了(le)MIDAS2006程序進行(xing)計算(suan)；結構為空間體(ti)系，該計算(suan)中采(cai)用(yong)了(le)三維有限元(yuan)模(mo)型計算(suan)。由于鋼箱梁比較寬，計算(suan)模(mo)型采(cai)用(yong)梁格(ge)法進行(xing)模(mo)擬；主(zhu)梁、主(zhu)拱采(cai)用(yong)空間梁單元(yuan)模(mo)擬，斜拉索(suo)采(cai)用(yong)單元(yuan)模(mo)擬。