摘　要
白潭溝橋，位于鄂陵縣陶城鄉(xiāng)東南部，地貌單元為淮河沖積平原區(qū)，橋位區(qū)周邊地勢平坦，溝谷與橋梁近直交。
水文地質(zhì)條件良好，所跨越河流內(nèi)積水最寬約36m,深約1.5m，河水清澈，水質(zhì)較好，環(huán)境水對混凝土無侵蝕性。土層無不良地質(zhì)現(xiàn)象，地基土層位穩(wěn)定且分布廣泛，無軟弱土層。本地區(qū)地震設(shè)防烈度為6度，基本地震加速為0.5g，區(qū)域穩(wěn)定性好。
橋梁采用預(yù)應(yīng)力混凝土空心板，并列分離雙幅布置，左、右幅橋等長，上部結(jié)構(gòu)：預(yù)制空心板采用40號混凝土；現(xiàn)澆鉸縫采用30號細(xì)骨料混凝土；橋面鋪裝采用30號瀝青混凝土，欄桿及人行道板采用25號混凝土。跨徑18m,橋面凈空為7+2 1.0m，主梁梁高為0.5m，梁長17.96m, 下部結(jié)構(gòu)：蓋梁、墩柱、均采用25號混凝土；樁基采用20號混凝土。
在設(shè)計中需完成的設(shè)計內(nèi)容：
（1）、設(shè)計方案比選，結(jié)構(gòu)布置及尺寸擬定
（2）、主梁、橫隔梁內(nèi)力計算
（3）、預(yù)應(yīng)力鋼束估算及布置
（4）、主梁截面幾何特性計算
（5）、預(yù)應(yīng)力損失計算
（6）、持久狀況應(yīng)力驗算、短暫狀況應(yīng)力驗算
（7）、主梁截面強度驗算
（8）、錨固區(qū)局部承壓計算
（9）、主梁變形計算
（10）、橋臺計算
（11）、橋梁墩柱計算
（12）、鉆孔灌注樁計算
（13）、繪制設(shè)計圖


關(guān)鍵詞：預(yù)應(yīng)力；后張法；錨固；鉆孔灌漿樁；荷載

Abstract
White Lake Ditch Bridge, located in Hubei Lingxian Tao urban and rural south-east, features modules for the Huaihe River Alluvial Plain. Bridge DC surrounding smooth terrain, ravines and bridges nearly orthogonal.
Hydrogeologic conditions are very good, across the river water within the width of 36 m and depth of about 1.5 m, the water is clear and the water quality is better environmental water on the concrete without erosion. Soil no adverse geological phenomena, the foundation soil-stability and widely distributed, and no soft soil. The seismic design intensity of 6 degrees, the basic seismic acceleration of 0.5 g, regional stability.
The proposed bridge using prestressed concrete hollow plate bridge using two parallel separation rate settings, the left and right sites located long, Superstructure : using precast hollow slab of concrete 40; Hinge joints using cast-in-place on the 30th fine aggregate concrete; Deck Paving used on the 30th of asphalt concrete, railings and sidewalks plate used on the 25th of concrete. 18 m span, bridge clearance of 7+2 1.0m, the main high as 0.5m Liang Liang, Liang long 17.96m, Substructure : covered beams, columns, adopted on the 25th concrete; Piles of concrete used on the 20th.
In the design of the required to complete the design content:
(1). the design scheme is selected, the structure arrangement and size drawn up
(2). girders, and the internal force calculation every beam
(3). prestressing tendons estimate and layout
(4). girders section geometry calculation
(5). prestress loss calculation
(6). lasting status stress checking and short stress checking in
(7). girders section strength check
(8). the anchorage zone of local pressure calculation
(9). girders deformation calculation
(10). calculated the abutment
(11). bridge pier column calculation
(12). bored piles calculation
(13). draw design


Keywords: Prestressed; This method; Anchor; Drill-hole grouting pile; load

目　錄
摘　要
ABSTRACT
1 緒論 1
1.1課題背景 1
1.2發(fā)展概況 2
1.3存在問題 2
1.4設(shè)計指導(dǎo)思想 2
2 方案論證 3
2.1設(shè)計資料 3
2.2方案比選 3
2.3方案 4
3 上部結(jié)構(gòu)設(shè)計 5
3.1設(shè)計資料 5
3.2構(gòu)造型式及尺寸選定： 5
3.3截面幾何特性計算： 6
3.4內(nèi)力計算： 7
3.5預(yù)應(yīng)力鋼筋面積的估算及預(yù)應(yīng)力鋼筋布置 17
3.6換算截面幾何特性計算 20
3.7空心板強度計算 21
3.8預(yù)應(yīng)力損失計算 26
3.9短暫狀況應(yīng)力驗算 28
3.10持久狀況應(yīng)力驗算 28
3.11正常使用極限狀態(tài)計算 31
3.12變形計算 35
3.13行車道板計算 37
3.14支座計算 39
4 下部結(jié)構(gòu)計算 42
4.1基本設(shè)計資料 42
4.2蓋梁的計算 43
4.3斜截面抗剪承載力驗算 56
4.4墩柱的內(nèi)力及配筋計算： 58
4.5鉆孔灌注樁計算： 63
結(jié)　論 73
參考文獻
致　謝