艾(ai)溪(xi)湖(hu)大橋(qiao)位于中國江西省南(nan)昌市,西起北京東(dong)路(lu),主線以(yi)高架(jia)橋(qiao)型(xing)式由(you)西往東(dong)跨(kua)過艾(ai)溪(xi)湖(hu)南(nan)路(lu)、艾(ai)溪(xi)湖(hu)和昌東(dong)大道(dao),接艾(ai)溪(xi)湖(hu)南(nan)路(lu)交叉口(kou)和昌東(dong)大道(dao)交叉口(kou)簡易立交,東(dong)至(zhi)紫陽大道(dao)是南(nan)昌市東(dong)部(bu)的(de)主出入口(kou)。
整體布局
艾溪湖大橋分別由水上(shang)主(zhu)橋、南北兩道引橋、拱(gong)肋、橋墩其立(li)交(jiao)匝道組(zu)成,主(zhu)橋路段呈正(zheng)西(xi)至正(zheng)東方向布(bu)置。
設計理念
艾溪(xi)湖大橋(qiao)(qiao)采用外傾式拱橋(qiao)(qiao)作為方案,以對(dui)稱傾斜拱結構與橋(qiao)(qiao)外伸出的半圓人行道等(deng)相(xiang)對(dui),寓意“張開雙臂、擁抱藍天”,也象(xiang)征南(nan)昌市美好的未來與日(ri)同輝(hui)。
設計特點
艾溪湖(hu)大橋(qiao)(qiao)主(zhu)(zhu)橋(qiao)(qiao)為(wei)三(san)跨(kua)連(lian)(lian)續(xu)外傾式(shi)(shi)(shi)(shi)思索面(mian)(mian)(mian)(mian)下(xia)城市鋼(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)(xiang)系桿(gan)拱(gong)(gong)橋(qiao)(qiao),上(shang)部結(jie)(jie)(jie)構三(san)跨(kua)連(lian)(lian)續(xu)梁(liang)(liang)(liang)拱(gong)(gong)組(zu)合結(jie)(jie)(jie)構,中(zhong)(zhong)跨(kua)主(zhu)(zhu)體為(wei)外傾式(shi)(shi)(shi)(shi)四(si)索面(mian)(mian)(mian)(mian)下(xia)承式(shi)(shi)(shi)(shi)鋼(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)(xiang)系桿(gan)拱(gong)(gong)橋(qiao)(qiao);拱(gong)(gong)肋(lei)(lei)(lei)豎向(xiang)為(wei)疊(die)拱(gong)(gong)形(xing)(xing)式(shi)(shi)(shi)(shi),下(xia)層(ceng)主(zhu)(zhu)拱(gong)(gong)肋(lei)(lei)(lei)為(wei)受力(li)拱(gong)(gong),上(shang)層(ceng)副(fu)拱(gong)(gong)肋(lei)(lei)(lei)為(wei)裝(zhuang)飾拱(gong)(gong),兩拱(gong)(gong)間(jian)以(yi)(yi)(yi)聯系件連(lian)(lian)接(jie)。拱(gong)(gong)肋(lei)(lei)(lei)為(wei)矩形(xing)(xing)鋼(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)(xiang)結(jie)(jie)(jie)構,拱(gong)(gong)腳底與鋼(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)(xiang)梁(liang)(liang)(liang)頂(ding)面(mian)(mian)(mian)(mian)齊(qi)平并由高強螺栓連(lian)(lian)接(jie)在墩(dun)頂(ding)中(zhong)(zhong)橫(heng)梁(liang)(liang)(liang)上(shang),拱(gong)(gong)肋(lei)(lei)(lei)內設(she)鋼(gang)(gang)(gang)板(ban)(ban)加勁肋(lei)(lei)(lei)。拱(gong)(gong)肋(lei)(lei)(lei)外露面(mian)(mian)(mian)(mian)采(cai)(cai)用(yong)裝(zhuang)飾涂(tu)(tu)料(liao),顏色(se)采(cai)(cai)用(yong)突出江(jiang)西革(ge)命文化特色(se)的(de)中(zhong)(zhong)國(guo)紅涂(tu)(tu)刷涂(tu)(tu)料(liao)前必須對(dui)拱(gong)(gong)肋(lei)(lei)(lei)表面(mian)(mian)(mian)(mian)進行(xing)除銹處(chu)理,以(yi)(yi)(yi)保證涂(tu)(tu)料(liao)的(de)耐久(jiu)性(xing)。橋(qiao)(qiao)面(mian)(mian)(mian)(mian)系為(wei)三(san)跨(kua)連(lian)(lian)續(xu)鋼(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)(xiang)梁(liang)(liang)(liang)結(jie)(jie)(jie)構,主(zhu)(zhu)跨(kua)橫(heng)向(xiang)由三(san)個(ge)鋼(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)(xiang)組(zu)成,即中(zhong)(zhong)間(jian)為(wei)車(che)行(xing)道(dao)(dao)鋼(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)(xiang)、兩側為(wei)人行(xing)道(dao)(dao)鋼(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)(xiang)。車(che)行(xing)道(dao)(dao)鋼(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)(xiang)與人行(xing)道(dao)(dao)鋼(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)(xiang)間(jian)通過鏤空梁(liang)(liang)(liang)連(lian)(lian)接(jie);鋼(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)(xiang)梁(liang)(liang)(liang)底面(mian)(mian)(mian)(mian)無橫(heng)坡,頂(ding)面(mian)(mian)(mian)(mian)橫(heng)坡與道(dao)(dao)路一致。中(zhong)(zhong)跨(kua)車(che)行(xing)道(dao)(dao)鋼(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)(xiang)有(you)(you)五道(dao)(dao)縱(zong)向(xiang)腹(fu)(fu)板(ban)(ban),邊跨(kua)車(che)行(xing)道(dao)(dao)縱(zong)向(xiang)腹(fu)(fu)板(ban)(ban)有(you)(you)九(jiu)道(dao)(dao),鋼(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)(xiang)梁(liang)(liang)(liang)頂(ding)板(ban)(ban)采(cai)(cai)用(yong)帶(dai)U肋(lei)(lei)(lei)的(de)正(zheng)交(jiao)異(yi)性(xing)板(ban)(ban)結(jie)(jie)(jie)構,U肋(lei)(lei)(lei)為(wei)梯(ti)形(xing)(xing)閉口肋(lei)(lei)(lei),鋼(gang)(gang)(gang)箱(xiang)(xiang)(xiang)(xiang)(xiang)梁(liang)(liang)(liang)底板(ban)(ban)采(cai)(cai)用(yong)帶(dai)平鋼(gang)(gang)(gang)板(ban)(ban)肋(lei)(lei)(lei)的(de)正(zheng)交(jiao)異(yi)性(xing)板(ban)(ban)結(jie)(jie)(jie)構,在主(zhu)(zhu)跨(kua)車(che)行(xing)道(dao)(dao)鋼(gang)(gang)(gang)梁(liang)(liang)(liang)內、拱(gong)(gong)腳處(chu)布置(zhi)有(you)(you)4組(zu)用(yong)于平衡拱(gong)(gong)腳水平推力(li)的(de)系桿(gan),系桿(gan)均采(cai)(cai)用(yong)環(huan)氧噴涂(tu)(tu)非集束(shu)(shu)鋼(gang)(gang)(gang)絞線形(xing)(xing)式(shi)(shi)(shi)(shi),采(cai)(cai)用(yong)非集束(shu)(shu)形(xing)(xing)式(shi)(shi)(shi)(shi)布置(zhi),每組(zu)鋼(gang)(gang)(gang)絞線外再(zai)增設(she)PE防(fang)護(hu)套;鋼(gang)(gang)(gang)絞線采(cai)(cai)用(yong)單根(gen)雙向(xiang)張拉工藝,錨(mao)墊板(ban)(ban)下(xia)設(she)置(zhi)糾偏裝(zhuang)置(zhi),錨(mao)頭防(fang)護(hu)參照可換式(shi)(shi)(shi)(shi)鋼(gang)(gang)(gang)絞線系桿(gan)的(de)保護(hu)罩構造。主(zhu)(zhu)橋(qiao)(qiao)橋(qiao)(qiao)墩(dun)采(cai)(cai)用(yong)鋼(gang)(gang)(gang)筋(jin)混凝土(tu)方形(xing)(xing)柱身、鋼(gang)(gang)(gang)筋(jin)混凝土(tu)承臺、鉆孔灌(guan)注樁基(ji)礎,一個(ge)主(zhu)(zhu)墩(dun)以(yi)(yi)(yi)道(dao)(dao)路中(zhong)(zhong)心(xin)線為(wei)界分成左右兩個(ge)橋(qiao)(qiao)墩(dun)。
艾溪湖大橋(qiao)線路(lu)長2.54千米(mi)(mi)(mi),橋(qiao)梁全長1.54千米(mi)(mi)(mi),水上主橋(qiao)總(zong)長168米(mi)(mi)(mi) ,橋(qiao)寬(kuan)41米(mi)(mi)(mi),其(qi)中(zhong)(zhong)(zhong),非(fei)機動車道(dao)(dao)3.5米(mi)(mi)(mi),人(ren)行道(dao)(dao)5.0米(mi)(mi)(mi);全橋(qiao)處在(zai)半(ban)徑10000米(mi)(mi)(mi)的豎曲線內(nei),拱(gong)(gong)平(ping)面(mian)(mian)向(xiang)外傾斜(xie)比例1:3,主拱(gong)(gong)圈(quan)在(zai)豎直(zhi)平(ping)面(mian)(mian)內(nei)投影高(gao)度為39米(mi)(mi)(mi),裝飾拱(gong)(gong)圈(quan)在(zai)最高(gao)點比主拱(gong)(gong)圈(quan)高(gao)7米(mi)(mi)(mi),主拱(gong)(gong)肋寬(kuan)自拱(gong)(gong)冠至(zhi)(zhi)(zhi)拱(gong)(gong)底(di)由1.5米(mi)(mi)(mi)至(zhi)(zhi)(zhi)2.5米(mi)(mi)(mi)線性變化,截(jie)面(mian)(mian)高(gao)度自拱(gong)(gong)冠至(zhi)(zhi)(zhi)拱(gong)(gong)底(di)由1.3米(mi)(mi)(mi)至(zhi)(zhi)(zhi)2.0米(mi)(mi)(mi),車行道(dao)(dao)鋼(gang)(gang)箱梁高(gao)度由道(dao)(dao)路(lu)中(zhong)(zhong)(zhong)心線處2米(mi)(mi)(mi)漸變到車行道(dao)(dao)邊(bian)線位(wei)置的1.59米(mi)(mi)(mi),人(ren)行道(dao)(dao)鋼(gang)(gang)箱梁高(gao)為1.59米(mi)(mi)(mi),中(zhong)(zhong)(zhong)跨車行道(dao)(dao)鋼(gang)(gang)箱五道(dao)(dao)縱(zong)向(xiang)腹板(ban),分別在(zai)道(dao)(dao)路(lu)中(zhong)(zhong)(zhong)心線及距中(zhong)(zhong)(zhong)心線9.92米(mi)(mi)(mi)、20.5米(mi)(mi)(mi)位(wei)置,厚度為14毫(hao)米(mi)(mi)(mi);邊(bian)跨車行道(dao)(dao)縱(zong)向(xiang)腹板(ban)有九道(dao)(dao),間距4.96至(zhi)(zhi)(zhi)5.62米(mi)(mi)(mi)。鋼(gang)(gang)箱梁頂板(ban)厚度為16毫(hao)米(mi)(mi)(mi),局部頂板(ban)加(jia)厚至(zhi)(zhi)(zhi)30毫(hao)米(mi)(mi)(mi),U肋用8毫(hao)米(mi)(mi)(mi)厚的鋼(gang)(gang)板(ban)冷彎成形,鋼(gang)(gang)箱梁底(di)板(ban)厚14毫(hao)米(mi)(mi)(mi)。一個(ge)(ge)(ge)主墩(dun)以道(dao)(dao)路(lu)中(zhong)(zhong)(zhong)心線為界(jie)分成左右2個(ge)(ge)(ge)橋(qiao)墩(dun),每個(ge)(ge)(ge)橋(qiao)墩(dun)由2個(ge)(ge)(ge)2.5米(mi)(mi)(mi)×2.0米(mi)(mi)(mi)方柱組(zu)成,2個(ge)(ge)(ge)方柱下設承臺,承臺下為雙排8根直(zhi)徑1.5米(mi)(mi)(mi)樁基(ji),承臺厚度2.0米(mi)(mi)(mi)。
技術標準
道路等級 城市(shi)快速路
設計基準 100年
車道(dao)設置 雙向(xiang)六車道(dao)
設計速度(du) 60千米(mi)/小(xiao)時
縱(zong)坡系數 0.5%(橋面)
荷載(zai)標(biao)準 公路(lu)-Ⅰ級,人群:3.1千(qian)(qian)牛(niu)/平(ping)方米,路(lu)面:BZZ-100千(qian)(qian)牛(niu)
設計風速 27.2米/秒(miao)
日照溫差(cha) 溫差(cha)效(xiao)應遵照《公路橋涵設計通用規范》
抗震等級 Ⅵ度
通(tong)航標準 橋下凈空(kong)大于2.5米
環境類別 Ⅰ類
艾溪湖大橋的(de)建設不僅是城(cheng)(cheng)市交通發展的(de)需(xu)要也是實施省市發展戰略(lve),增(zeng)強(qiang)南(nan)(nan)昌(chang)市經(jing)濟輻射力,把(ba)南(nan)(nan)昌(chang)打造成現代制造業基地的(de)需(xu)要,同時也是當時南(nan)(nan)昌(chang)市舉辦第七屆全國城(cheng)(cheng)市運動會和招商(shang)引資(zi)的(de)需(xu)要,是一(yi)條體(ti)現南(nan)(nan)昌(chang)“城(cheng)(cheng)湖相融”意(yi)境的(de)景(jing)觀(guan)大道,體(ti)現南(nan)(nan)昌(chang)山水城(cheng)(cheng)、園(yuan)林城(cheng)(cheng)、科技(ji)城(cheng)(cheng)風貌的(de)景(jing)觀(guan)軸之一(yi)。(《城(cheng)(cheng)市道橋與防洪》 評)
2009年6月(yue)30日(ri)(ri),南(nan)昌市有關(guan)部門同(tong)意艾(ai)(ai)溪湖大(da)(da)橋工程(cheng)立項;11月(yue)30日(ri)(ri),艾(ai)(ai)溪湖大(da)(da)橋前期建(jian)設勘察人(ren)員對(dui)勘測(ce)點地質構成進行鉆孔取樣分析;12月(yue)21日(ri)(ri),艾(ai)(ai)溪湖大(da)(da)橋工程(cheng)開造圍堰。
2010年(nian)1月(yue)14日(ri)(ri),艾(ai)(ai)溪(xi)(xi)(xi)湖(hu)(hu)大(da)橋(qiao)(qiao)完(wan)成圍(wei)堰合龍工(gong)程(cheng)(cheng);4月(yue)12日(ri)(ri),艾(ai)(ai)溪(xi)(xi)(xi)湖(hu)(hu)大(da)橋(qiao)(qiao)進行(xing)橋(qiao)(qiao)基(ji)建設(she);5月(yue)8日(ri)(ri),艾(ai)(ai)溪(xi)(xi)(xi)湖(hu)(hu)橋(qiao)(qiao)體(ti)動工(gong)興建;8月(yue)5日(ri)(ri),艾(ai)(ai)溪(xi)(xi)(xi)湖(hu)(hu)大(da)橋(qiao)(qiao)完(wan)成樁基(ji)建設(she)工(gong)程(cheng)(cheng); 10月(yue)21日(ri)(ri),艾(ai)(ai)溪(xi)(xi)(xi)湖(hu)(hu)大(da)橋(qiao)(qiao)進行(xing)主體(ti)澆筑工(gong)程(cheng)(cheng); 10月(yue)23日(ri)(ri),艾(ai)(ai)溪(xi)(xi)(xi)湖(hu)(hu)大(da)橋(qiao)(qiao)完(wan)成大(da)橋(qiao)(qiao)下部(bu)結(jie)構工(gong)程(cheng)(cheng); 12月(yue)30日(ri)(ri),艾(ai)(ai)溪(xi)(xi)(xi)湖(hu)(hu)大(da)橋(qiao)(qiao)進行(xing)橋(qiao)(qiao)面混凝土澆灌(guan)工(gong)程(cheng)(cheng);
2011年1月,艾(ai)溪湖(hu)大(da)(da)橋(qiao)(qiao)完成主橋(qiao)(qiao)合龍(long)工(gong)程(cheng)(cheng);3月31日(ri),艾(ai)溪湖(hu)大(da)(da)橋(qiao)(qiao)進行斜(xie)拱結(jie)構安裝(zhuang)工(gong)程(cheng)(cheng);5月3日(ri),艾(ai)溪湖(hu)大(da)(da)橋(qiao)(qiao)完成主橋(qiao)(qiao)斜(xie)拱鋼結(jie)構安裝(zhuang);5月29日(ri),艾(ai)溪湖(hu)大(da)(da)橋(qiao)(qiao)完成橋(qiao)(qiao)梁下部和(he)上部結(jie)構工(gong)程(cheng)(cheng),進行橋(qiao)(qiao)面(mian)鋪裝(zhuang)及橋(qiao)(qiao)梁附(fu)屬工(gong)程(cheng)(cheng)。9月9日(ri),艾(ai)溪湖(hu)大(da)(da)橋(qiao)(qiao)竣(jun)工(gong),通車運營(ying)。
交通監控
2017年9月15日(ri)起,南昌市公安交(jiao)管局利用(yong)南昌市道路上的動態監(jian)控系統(tong),對艾溪湖大橋和昌南高(gao)架橋通行的違法行為進(jin)行全天候(hou)抓拍。
照明設施
2011年9月(yue)9日,艾溪(xi)湖橋(qiao)上各類(lei)景觀、照明(ming)燈共達12291盞(zhan),主橋(qiao)雙拱(gong)上的(de)LED燈亮出各種造型,使其成為一處新的(de)靚(jing)麗風景。
票價票制
2017年9月1日,艾溪湖(hu)大(da)橋(qiao)不實施收費制(zhi)度,全橋(qiao)免費通行。
通行事項
2017年9月15日起,艾溪湖大橋(qiao)限(xian)重(zhong)55噸,限(xian)重(zhong)時間為全天候。
技術難題
艾溪湖大橋(qiao)在主(zhu)橋(qiao)上采(cai)用了MIDAS2006程序進(jin)(jin)行計(ji)算(suan)(suan);結構為空(kong)間(jian)體系(xi),該計(ji)算(suan)(suan)中采(cai)用了三維有限(xian)元模(mo)(mo)(mo)(mo)型計(ji)算(suan)(suan)。由于(yu)鋼箱梁比(bi)較(jiao)寬,計(ji)算(suan)(suan)模(mo)(mo)(mo)(mo)型采(cai)用梁格法進(jin)(jin)行模(mo)(mo)(mo)(mo)擬(ni);主(zhu)梁、主(zhu)拱采(cai)用空(kong)間(jian)梁單元模(mo)(mo)(mo)(mo)擬(ni),斜(xie)拉索采(cai)用單元模(mo)(mo)(mo)(mo)擬(ni)。