摘要本设计是根据毕业设计任务书要求和设计规范的规定,根据老师与自己的设计确定的,为预制混凝土T梁,为先简直后连续结构。预应力混凝土T形梁桥具有结构简单,受力明确、节省材料、架设安装方便,跨越能力较大等优点。该桥分为5片、4跨,每跨40m,上部结构为连续梁。本桥采用分离式路基,设计时只考虑半面路基的设计。施工方法选为预制T梁法。29304
上部构造的计算拟定T梁截面,对4×40m跨径进行了很详细的单元划分,计算恒载内力和活载内力,全桥均采用MIDAS软件进行了计算,全部设计图纸由AutoCAD绘制,计算机编档、排版,打印出图及论文。此外,还翻译了一篇英文文献“ Full-Range Analysis of Multi-Span Prestressed Concrete Segmental Bridges”
毕业论文关键词: 预应力混凝土连续梁桥 预制T梁
Abstract
This design is according to the requirements of the design and design
specification, according to the teacher and his design, for the precast concrete
T beam, for the first simply after continuous structure. The prestressed concrete
T shaped beam bridge has the advantages of simple structure, clear loading, saving
material, installing and installing, and crossing over ability.. The bridge is
pided into 5 pieces, 4 span, each span 40m, and the upper structure is continuous
beam. The bridge uses the separation type roadbed, the design only considers the
design of the half roadbed. The construction method is precast T beam
Method.
Calculation of the upper structure of the proposed T beam section, very
detailed unit pision of 4 x 40m span, the calculation of the internal force
of dead load and live load force, full bridge by Midas are calculated, all designed
to drawings by AutoCAD drawing and computer filing, typesetting, print out the
diagram and thesis.In addition, an English document is also translated
“ Full-Range Analysis of Multi-Span Prestressed Concrete Segmental Bridges”
Keywords: grade separated pre-stressed concrete continuous girder bridge
Precast T beam1.绪论 8
1.1 预应力混凝土连续预制箱梁桥概述 8
1.2毕业设计的目的与意义 9
2.设计资料 9
2.1 桥梁概况 9
2.2 设计参数 9
2.3 技术条件 10
2.4 设计要求 10
2.5计算原则、内容及控制标准 10
2.6 规范标准 10
3.桥跨总体布置及结构尺寸拟定 11
3.1 本桥主料材料 11
3.1.1 混凝土 11
3.1.2预应力材料 11
3.1.3普通钢筋 12
3.2结构尺寸图 12
3.3 桥孔分跨 14
3.4 截面形式 15
3.4.1 立截面 15
3.4.2 横截面 16
3.4.2.1典型横断面图 16
3.5梁高 17
3.6横隔梁的设置 17
3.7截面尺寸图 18
4.荷载计算 20
4.1恒载内力计算 21
4.2主梁分段与施工方法 21
4.2.1分段原则 21
4.2.2具体分段 21
4.2.3主梁施工方法及注意事项 21
4.3计算模型 21
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