毕业设计 白潭沟桥设计.rar

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毕业设计 白潭沟桥设计,摘 要白潭沟桥,位于鄂陵县陶城乡东南部,地貌单元为淮河冲积平原区,桥位区周边地势平坦,沟谷与桥梁近直交。水文地质条件良好,所跨越河流内积水最宽约36m,深约1.5m,河水清澈,水质较好,环境水对混凝土无侵蚀性。土层无不良地质现象,地基土层位稳定且分布广泛,无软弱土层。本地区地震设防烈度为6度,基本地震加速为0.5g,区...
编号:125-210330大小:2.10M
分类: 论文>土木工程/建筑论文

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原文档由会员 ljjwl8321 发布

摘 要
白潭沟桥,位于鄂陵县陶城乡东南部,地貌单元为淮河冲积平原区,桥位区周边地势平坦,沟谷与桥梁近直交。
水文地质条件良好,所跨越河流内积水最宽约36m,深约1.5m,河水清澈,水质较好,环境水对混凝土无侵蚀性。土层无不良地质现象,地基土层位稳定且分布广泛,无软弱土层。本地区地震设防烈度为6度,基本地震加速为0.5g,区域稳定性好。
桥梁采用预应力混凝土空心板,并列分离双幅布置,左、右幅桥等长,上部结构:预制空心板采用40号混凝土;现浇铰缝采用30号细骨料混凝土;桥面铺装采用30号沥青混凝土,栏杆及人行道板采用25号混凝土。跨径18m,桥面净空为7+2 1.0m,主梁梁高为0.5m,梁长17.96m, 下部结构:盖梁、墩柱、均采用25号混凝土;桩基采用20号混凝土。
在设计中需完成的设计内容:
(1)、设计方案比选,结构布置及尺寸拟定
(2)、主梁、横隔梁内力计算
(3)、预应力钢束估算及布置
(4)、主梁截面几何特性计算
(5)、预应力损失计算
(6)、持久状况应力验算、短暂状况应力验算
(7)、主梁截面强度验算
(8)、锚固区局部承压计算
(9)、主梁变形计算
(10)、桥台计算
(11)、桥梁墩柱计算
(12)、钻孔灌注桩计算
(13)、绘制设计图


关键词:预应力;后张法;锚固;钻孔灌浆桩;荷载

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 录
摘 要
ABSTRACT
1 绪论 1
1.1课题背景 1
1.2发展概况 2
1.3存在问题 2
1.4设计指导思想 2
2 方案论证 3
2.1设计资料 3
2.2方案比选 3
2.3方案 4
3 上部结构设计 5
3.1设计资料 5
3.2构造型式及尺寸选定: 5
3.3截面几何特性计算: 6
3.4内力计算: 7
3.5预应力钢筋面积的估算及预应力钢筋布置 17
3.6换算截面几何特性计算 20
3.7空心板强度计算 21
3.8预应力损失计算 26
3.9短暂状况应力验算 28
3.10持久状况应力验算 28
3.11正常使用极限状态计算 31
3.12变形计算 35
3.13行车道板计算 37
3.14支座计算 39
4 下部结构计算 42
4.1基本设计资料 42
4.2盖梁的计算 43
4.3斜截面抗剪承载力验算 56
4.4墩柱的内力及配筋计算: 58
4.5钻孔灌注桩计算: 63
结 论 73
参考文献
致 谢