【土木】清江大桥施工图设计

收藏

编号:20171225085458649    类型:共享资源    大小:6.19MB    格式:RAR    上传时间:2017-12-25
  
25
关 键 词:
土木 清江 大桥 施工图 设计
资源目录:
(温馨提示:点“+”可展开查看一级资源目录。点“-”可关闭资源目录。)
跳过导航链接。
资源描述:

摘 要

本设计为湖南省吉首矮寨Ⅱ号隧道清江大桥施工图设计。根据设计任务书提供的设

计资料与要求,根据现行公路桥梁设计规范,结合“实用、经济、安全、美观”的桥梁

设计原则,确定该桥梁方案为:88m+145m+145+88m 的四跨全预应力混凝土连续刚构桥。

截面尺寸拟定:桥面宽为 24.5m,单箱单室分离式截面。顶板宽 12m,厚 30cm,底

板宽 6.m。支点腹板厚度 90cm,底板厚度 60-73cm,取 60cm;跨中腹板厚度 60,底板

22-28,取 28cm。腹板和底板厚度呈线性变化。梁高:支点梁高 9m(与主跨比值 1/16.5),

跨中梁高 3m(与主跨比值 1/3)。边跨和中跨梁高变化均为二次曲线,边跨已支点底部

为二次抛物线顶点,中跨以跨中截面底部为二次抛物线顶点。下部设置多排桩基础,墩

宽 1.8 米、长 40 米,桩基础直径 1 米。主梁施工采用悬臂现浇,边跨合拢采用挂篮推

进合拢。

采用 Midas 软件计算桥梁结构的内力及内力组合,进行预应力钢筋的估算与配置。

根据《公预规》的规定,对该桥梁进行了截面强度验算、抗裂验算、持久状况构件的应

力验算和挠度验算,验算结果表明该设计是合理的,该桥梁的各项性能在设计年限内均

能满足的要求。

关键词:连续刚构桥;1.8 次抛物线;双肢薄壁墩;Midas 软件

THE CONSTRUCTION CONSTRUCTION CONSTRUCTION CONSTRUCTION DESIGN OF

LIANG HE KOU’S BRIDGE

ABSTRACT ABSTRACT ABSTRACT ABSTRACT

This design for the hunan jishou aizhai Ⅱ tunnel qingjiang bridge construction drawing

design. According to the design specification for the design data and requirements,

according to the current highway bridge design specifications, combined with \"practical,

safe, economic and beautiful\" principles of bridge design, determine the scheme for the

bridge, 88 m + 145 m + 145 + 145 m SiKua prestressed concrete continuous rigid frame

bridge.

Section size to: bridge deck width is 24.5 m, single box single room separate section. Roof

12 m wide and 30 cm, thick slab width 6 m. Support web thickness is 90 cm, 60-73 cm,

base plate thickness take 60 cm; Across the web thickness, 60 floor 22 to 28, 28 cm. Web

plate and bottom plate thickness is linear change. It is 9 m high beam: pivot beam with

mainspan ratio (1/16.5), across the centre sill high 3 m (1/3) and mainspan ratio. High side

span and middle span beam changes are quadratic curve, at the bottom of the side span has

protection for quadratic parabola vertices, midspan to across the section at the bottom of

the quadratic parabola apex. Lower setting pile foundation, 1.8 meters wide, 40 meters

long, 1 meter diameter pile foundation. Using cantilever cast-in-place girder construction,

push fold folded edge across using hanging basket.

Using Midas software is to get the internal force of the structures and the composition of

internal force. For this, we can evaluate the amount of longitudinal tendons and distribute

the tendons to the bridge. According to Code for Design of Highway Reinforce and

Prestressed concrete Bridges and Culverts we deed some checking, that includes the

load-caring capacity ultimate state and the normal service ability ultimate state as well as

the main section’s being out of shape. The conclusion can be drawn that the design is up

to the assignment.

Key words: continual rigid frame bridge; parabola with power of 1.8;cast-in-cantiever;

目 录

1 概况与方案比选...................................................................................................................... ...................................................................................................................... ...................................................................................................................... ......................................................................................................................1

1.1 工程概况........................................................................................................................... 1

1.2 技术标准........................................................................................................................... 1

1.3 技术规范........................................................................................................................... 1

1.4 方案比选........................................................................................................................... 2

2 结构尺寸拟定和材料选用...................................................................................................... ...................................................................................................... ...................................................................................................... ......................................................................................................7

2.1 结构尺寸的拟定............................................................................................................... 7

2.2 主要材料........................................................................................................................... 7

3 结构内力计算.......................................................................................................................... .......................................................................................................................... .......................................................................................................................... ..........................................................................................................................7

3.1 有限元建模...................................................................................................................... 7

3.2 恒载作用下的内力值....................................................................................................... 7

3.3 汽车荷载内力计算........................................................................................................... 7

3.4 温度内力计算.................................................................................................................. 7

3.5 基础沉降内力计算.......................................................................................................... 7

3.6 荷载组合.......................................................................................................................... 7

4 预应力钢束的估算及布置...................................................................................................... ...................................................................................................... ...................................................................................................... ......................................................................................................7

4.1 预应力钢筋数量估算....................................................................................................... 7

4.2 预应力钢束的布置.......................................................................................................... 7

5 预应力损失计算...................................................................................................................... ...................................................................................................................... ...................................................................................................................... ......................................................................................................................7

6 配束后的内力组合.................................................................................................................. .................................................................................................................. .................................................................................................................. ..................................................................................................................7

6.1 承载内力极限状态组合................................................................................................... 7

6.2 短期作用组合................................................................................................................... 7

6.3 长期作用组合................................................................................................................... 7

7 截面强度验算.......................................................................................................................... .......................................................................................................................... .......................................................................................................................... ..........................................................................................................................7

7.1 主梁正截面强度验算....................................................................................................... 7

7.2 桥墩正截面强度验算....................................................................................................... 7

8 抗裂验算.................................................................................................................................. .................................................................................................................................. .................................................................................................................................. ..................................................................................................................................7

8.1 正截面抗裂验算............................................................................................................... 7

8.2 斜截面抗裂验算............................................................................................................... 7

9 持久状况构件的应力验算...................................................................................................... ...................................................................................................... ...................................................................................................... ......................................................................................................7

9.1 正截面混凝土压应力验算............................................................................................... 7

9.2 预应力钢筋拉应力验算................................................................................................... 7

9.3 混凝土主压应力验算....................................................................................................... 7

10 挠度验算和预拱度计算........................................................................................................ ........................................................................................................ ........................................................................................................ ........................................................................................................7

10.1 挠度验算......................................................................................................................... 7

10.2 预拱度计算..................................................................................................................... 7

11 设计特点................................................................................................................................ ................................................................................................................................ ................................................................................................................................ ................................................................................................................................7

12 设计总结与致谢.................................................................................................................... .................................................................................................................... .................................................................................................................... ....................................................................................................................7

13 参考文献................................................................................................................................ ................................................................................................................................ ................................................................................................................................ ................................................................................................................................7

附件

附件一:开题报告

附件二:外文文献译文及原文

展开阅读全文
  大分享文库-在线教育资源分享平台 所有资源均是用户自行上传分享,仅供网友学习交流,未经上传用户书面授权,请勿作他用。
0条评论

还可以输入200字符

暂无评论,赶快抢占沙发吧。

关于本文
本文标题:【土木】清江大桥施工图设计
链接地址:http://www.west960.com/p-257907.html
关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服客服 - 联系我们

copyright@ 2008-2018 大分享文库网 版权所有
经营许可证编号:豫ICP备11013292号-2

客服QQ:1965775022

收起
展开