【正文】 .................................... 9 、復(fù)核水面超高 .................................................................................. 9 、漸變段布置 ...................................................................................... 9 三、槽身結(jié)構(gòu)計(jì)算 .................................................................................................. 10 、縱向結(jié)構(gòu)計(jì) 算 .......................................................................................... 10 、槽身剖面形式及尺寸擬定 ............................................................... 10 、各類系數(shù)的確定 ............................................................................. 10 、荷載計(jì)算 ....................................................................................... 11 、縱向內(nèi)力計(jì)算 ................................................................................ 12 、配筋計(jì)算 ....................................................................................... 13 、抗裂校核 ....................................................................................... 13 、橫向結(jié)構(gòu)計(jì)算 .......................................................................................... 15 、荷載計(jì)算 ....................................................................................... 15 、橫向結(jié)構(gòu)內(nèi)力計(jì)算 ......................................................................... 16 、配筋計(jì)算 ....................................................................................... 17 四、支撐結(jié)構(gòu)設(shè)計(jì) .................................................................................................. 20 、支撐結(jié)構(gòu)的形式及尺寸擬定 ..................................................................... 20 、主拱圈設(shè)計(jì) .................................................................................... 20 、拱軸系數(shù) m的確定及拱圈幾何特性計(jì)算 ......................................... 20 、拱上排架設(shè)計(jì) .......................................................................................... 21 、排架底部高程及高度 H（ m） ........................................................ 21 、排架形式及尺寸的選擇 .................................................................. 21 、排架荷載計(jì)算 ................................................................................ 22 、排架的內(nèi)力計(jì)算 ............................................................................. 24 、排架的配筋計(jì)算 ............................................................................. 27 、排架的縱向計(jì)算 ............................................................................. 29 、拱圈設(shè)計(jì) ................................................................................................. 30 、拱軸系數(shù) m的校核 ........................................................................ 30 、彈性壓縮系數(shù)的計(jì)算 ...................................................................... 31 、鉛直荷載作用下的內(nèi)力計(jì)算 ........................................................... 31 、 水深變化引起的拱圈內(nèi)力計(jì)算 ........................................................ 34 、溫度變化及混凝土收縮作用下的內(nèi)力計(jì)算 ...................................... 35 、主拱圈的強(qiáng)度及穩(wěn)定驗(yàn)算 ............................................................... 36 、拱圈配筋 ....................................................................................... 39 、基礎(chǔ)設(shè)計(jì) ................................................................................................. 40 、支座設(shè)計(jì)（ 0 號和 12 號排架） ....................................................... 40 、槽臺設(shè)計(jì)（ 0 號和 12 號排架） ....................................................... 40 、槽墩設(shè)計(jì) ....................................................................................... 41 五、細(xì)部結(jié)構(gòu) ......................................................................................................... 42 、 伸縮縫及止水 ................................................................................... 42 、支座 ................................................................................................. 42 、兩岸連接 .......................................................................................... 42 引 言 、研究背景及意義 渡槽是輸送渠道水流跨越河渠、道路、山?jīng)_、谷口等的架空輸水建筑物，是灌區(qū)水工建筑物中應(yīng)用最廣的交叉建筑物之一，除用于輸送渠水外還可排洪和導(dǎo)流等之用。槽身、排架、拱圈以及基礎(chǔ)采用預(yù)制吊裝形式。經(jīng)灌區(qū)重新規(guī)劃，將原山谷 下的沿山渠道進(jìn)行截彎取直，在截彎處新建新的龍?zhí)稕_渡槽，工程為 III 等工程，主要建筑物為 3 級。對本論文所涉及的研究工作做出貢獻(xiàn)的其他個(gè)人和集體，均已在文中以明確的方式標(biāo)明。 學(xué)號 202031580223 密級 武漢大學(xué)本科畢業(yè)生論文 白蓮河龍?zhí)稕_ (拱式 )渡槽設(shè)計(jì) 二○一○年六月 BACHELOR39。本學(xué)位論文的知識產(chǎn)權(quán)歸屬于培養(yǎng)單位。 新建的渡槽采用矩形拱式渡槽，拱跨 87m，共兩跨，槽底寬為 ，側(cè)墻高 ，設(shè)有間距為 ，高為 ，考慮到交通要求，還設(shè)有 1m 寬的人行板。 關(guān)鍵詞： 渡槽；懸鏈線無鉸拱；排架； ABSTRACT The aqueduct of Longtan Chong is located in upstream of the west main canal, the pile number is 1+800, pletion of fixed number of year from 1961~1962. After 30 years of running, the aqueduct appeared serious aging problems, in addition of the irrigation area and rate of flow increased, the aqueduct can not take the task for irrigation any more, requesting reconstruction of the Bailian River aqueduct. In consideration of the channel of the original aqueduct was located in a huge valley, it was often threatened by flood during that period of channels in flash floods. After the irrigation district planning, The channel original Valley channel by bent into straight, the new aqueduct will be built in curved, engineering projects such as the III, the main building to the level 3. The new aqueduct used rectangular arch aqueduct, the arch span is 87 m, there will be double crosses, the aqueduct at the bottom of a width of ， side wall height ， set a spacing of , the lever of the . Considering the traffic requirements, also has 1m wide sidewalks. This design layout, etc. across a 15m of 12 singlebent cross, with the transition section junction with masonry stone runnel pier, bent and ground connection with overall foundation, Aqueduct, bent, Arch, and the und