【正文】
懸索橋設(shè)計(jì) (圖紙圖片 +施工方案 +施工工藝 +論文 )論文 懸索橋設(shè)計(jì) (圖紙圖片 +施工方案 +施工工藝 +論文 ) 目 錄 摘要…………………………………………………………………………………………………… .Ⅰ Abstract……………………………… ...……………………………………………………Ⅱ 第一章 緒論……………………………………………………………………………… 1 懸索橋的分類(lèi)、構(gòu)造及主要特點(diǎn)………………………………………… ............1 分類(lèi)……………………………………………………………………………1 主要構(gòu)造………………………………………………………………………1 懸索橋的發(fā)展概況……………………………………………………………… ...3 懸索橋的計(jì)算理論簡(jiǎn)介………………………………………………………… ...4 本文的主要工作………………………………………………………………… ...5 第二章 懸索橋結(jié)構(gòu)設(shè)計(jì)………………………………………………………… ............6 設(shè)計(jì)方案 比選…………………………………………………………………… ...6 橋面系計(jì)算……………………………………………………………………… ...6 橋面系構(gòu)造……………………………………………………………… ........6 橋面系縱、橫梁內(nèi)力計(jì)算…………………………………………………… 7 主索和邊索的計(jì)算…………………………………………………………… .… 20 基本參數(shù)……………………………………………………………… .… .…20 主索內(nèi)力計(jì)算……………………………………………………………… ..20 邊索內(nèi)力計(jì)算……………………………………………………………… ..22 索的強(qiáng)度驗(yàn)算……………………………………………………………… ..22 撓度驗(yàn)算………………………………………………………………………… .22 主索因溫度及荷載作用下的撓度計(jì)算……………………………… .…… .22 邊索因溫度及荷載作用下引起主索跨中撓度的計(jì)算………………… .… .25 最不利情況下跨中失高 變化值的計(jì)算…………………………………… ..27 抗風(fēng)索的計(jì)算…………………………………………………………………… .27 抗風(fēng)索布置………………………………………………………………… ..27 抗風(fēng)索的設(shè)計(jì)……………………………………………………………… ..28 抗風(fēng)索錨碇的設(shè)計(jì)………………………………………………………… ..30 吊桿設(shè)計(jì)…………………………………………………………………… ..… ...32 吊桿形式和各部尺寸…………………………………………………… ..…32 吊桿承受的荷載內(nèi)力……………………………………………………… ..32 吊桿及連接件設(shè)計(jì)……………………………………………………… ..…33 索夾設(shè)計(jì)………………………………………………………………………… .34 索夾尺寸……………………………………………………………… ..……34 U 形環(huán)強(qiáng)度驗(yàn)算………………………………………………………… ..… .34 索夾凈截 面強(qiáng)度驗(yàn)算…………………………………………………… .… .34 橋塔設(shè)計(jì)……………………………………………………………………… .… 35 橋塔及基本尺寸………………………………………………………… .… .35 橋塔計(jì)算……………………………………………………………… .…… .35 橋塔基底應(yīng)力檢算……………………………………………………… .… .51 錨碇設(shè)計(jì)橋塔基底應(yīng)力檢算………………………………………………… .… 51 第三章 設(shè)計(jì)總結(jié)…………………… …………………………………………… .…… .55 參考文獻(xiàn)…………………………………………………………………………… ...… ...56 致謝……………………………………………………………………………… ..……… 57 附錄1 …………………………………… ...…………………………………………… ...58 附錄2 …………………………………… ...…………………………………………… ...87 小跨吊橋設(shè)計(jì) 摘要 本設(shè)計(jì)為公路( 13m+68m+13m)三跨柔性懸索橋,主跨 68m,邊跨對(duì)稱(chēng) 13m。橋面系為鋼結(jié)構(gòu),橋塔 為鋼筋混凝土結(jié)構(gòu)。懸索橋很早以前就有了,到了近代發(fā)展速度十分迅猛,在現(xiàn)代橋梁工程實(shí)踐中開(kāi)始廣泛應(yīng)用,其特點(diǎn)是受力性能好、跨越能力大、輕型美觀(guān)、抗震性能好。是跨越大江大河、海峽港灣等交通障礙的首選橋型。 本設(shè)計(jì)以懸索橋設(shè)計(jì)基本理論和靜動(dòng)力分析為理論基礎(chǔ),以成功修建的懸索橋?yàn)槔?,根?jù)橋梁的位置、布置形式,擬定橋梁的跨度、矢高、吊桿間距、錨索傾角、橋塔高度和截面、塔基形式、錨碇構(gòu)造等,說(shuō)明選擇相關(guān)參數(shù)的過(guò)程、依據(jù)、和考慮的主要因素,然后進(jìn)行橋面系、主索邊索、吊桿、索夾、抗風(fēng)索、橋塔、錨碇等具體尺寸設(shè)計(jì)、配筋和驗(yàn)算 。 橋面系采用工字鋼橫縱梁布置,主索用 719 鋼絲繩,橋塔用 C20 鋼筋混凝土,本橋相對(duì)懸索橋跨度較小,設(shè)計(jì)考慮恒載、風(fēng)荷載和溫度荷載,活載為汽 10 和人行荷載,不考慮地震荷載。 由于懸索橋是超靜定結(jié)構(gòu),計(jì)算較為煩瑣,故在該設(shè)計(jì)中,結(jié)構(gòu)單元?jiǎng)澐趾蛢?nèi)力計(jì)算采用專(zhuān)業(yè)設(shè)計(jì)軟件 ansys 進(jìn)行,計(jì)算方法為有限元法,使設(shè)計(jì)工作量大大的簡(jiǎn)化,內(nèi)力求出后,根據(jù)橋梁規(guī)范進(jìn)行結(jié)構(gòu)內(nèi)力組合。最后,按容許應(yīng)力法和極限狀態(tài)法來(lái)驗(yàn)算主要截面,以判定設(shè)計(jì)的合理性。 關(guān)鍵詞:懸索橋 橋面系 主索 橋塔 錨碇 The Design of Shotspan Suspension Bridge Abstract The subject of this thesis is the design of a suspension bridge, which the arrangement is 13m+68m+13m. The deck system is made of steel and the tower is posed concrete. Suspension brides with a long history are developing rapidly recently. In the family of bridge, the suspension bridges are widely applied in practical. For their merit of light distinguished capability of span, and aesthetic shape. It is the very best kind bridge to across wide rive, strait and gulf. The subject is performed in according with the basic theory of suspension bridge dynamic and stationary analysis theory. The span, main cables tower and anchorages are designed in line with the arrangement of span. The way choose the parameters and decisive elements are illustrated. Thereafter, the sizes of deck system, main cables, end link, cable bands, storm system and anchorages are designed. As a highly redundant system, it is inevitably brings us much difficult in the analysis of the internal forces by hand. The puter program, which named Ansys are used in course of calculation in order to simply the work. When the internal stress is carried out, the arrangement of internal stress is implemented in light of bridge specification. After checking the items required in the code for th