设计简介 |
设计描述:
文档包括:
word版设计说明书一份,76页,约20000字
开题报告一份
翻译一份
CAD版本图纸,共10张
摘要
京沈高速公路绕阳河大桥为分离式预应力连续箱形梁桥,全桥长120m,分为4跨,每跨30m,设计荷载为公路I级,设计车速100千米每小时。本桥下部结构设计主要包括设计包括桥墩和桥台设计两大部分。
在桥墩设计中,采用双柱式钻孔灌注桩桥墩,C50混凝土,截面尺寸根据经验和相关规范拟定。桥墩的设计包括盖梁,桩身和桩基计算,截面验算及配筋等部分,对双柱式桥墩,盖梁按双悬臂梁计算,还包括活载及其内力的计算,以及荷载组合。桩身计算内容包括:桥墩刚度的计算,制动力和温度影响力的计算与分配。在桩基设计中,包括承台底内力组合,桩长估算和桩基强度验算。
在桥台设计中,主要进行了桥台一般构造尺寸的拟定,台帽,台墙及桩基计算。台墙承受上部构造恒载、活载、支座摩阻力、后台土压力、地震力、溜坡主动土压力等外力。台前溜坡土压力在溜坡不被冲毁时予以考虑。计算台身反力时,按盖梁底面,墙身中部,墙身底部,承台底面等处进行计算,每处截面内力包括垂直力,垂直力偏心弯矩,水平力,水平力所产生的弯矩,桥台中桩基的计算与桥墩中的一样。
本设计解决了上述一系列的计算与验算问题,并且配合设计的尺寸绘制了对应的工程设计图纸,也对该设计的工作量与材料用量作出了概预算统计。
关键词:下部结构;桥墩;桥台;盖梁;桩基
Abstract
This bridge is a separation formula with pre-stressed concrete beam, the total length of the bridge is120 meters, it is composed of 5 spans, and each span is 30 meters. The designed load is road-I. The design consists of pier and abutment design.
In the design of pier, I adopt pair-column-drilling-and-filling pile pier. The rank of the concrete is C50. I designed the dimension of every section according to empirical date and some relative code. The calculation of column-like pier consists of lid beam, pile body and pile foundations. To pair-column-like pier, lid beam is calculated as two cantilever beams, and this calculating context consist of dead and live loads and their inner force, the combination of loads. The calculation of pier, including the distribution of barking force and the temperature influence force. Pile foundations consist of internal force combination under the lid bean assessment of the length of pile and the pile foundation strength.
In the abutment design, I complete the design of abutment configuration dimensional drawing and the calculations of bed block, abutment wall and pie foundation. Abutment wall bears substructure dead and live loads, soil pressure at the back of abutment, the force of earthquake and the pressure of revetment active soil and other forces. Revetment active force in front of abutment is considered when it is not scoured. I calculate the force revolted by abutment body according to the bottom of lid beam, the middle of wall body, the button of wall body and the button of pier cap. Every section internal force consists of vertical force, en-centric moments caused by vertical force, horizontal force and moments caused by horizontal force. The calculation of pile foundation in abutment is the same as in pier’s.
This designed meet the needs of series of calculations issues and checking computations above, and mapped the designed project in corresponding size by design drawings, and made shall budget statistics with the workload of the design and materials usage.
Key words: Substructure; Pier; Abutment; Bent cap; Pile foundation
目录
前言……………………………………………………………………1
1桥型方案比选……………………………………………………2
1.1设计资料…………………………………………………………2
2支座的设计…………………………………………………………5
2.1板式橡胶支座的选用……………………………………………5
2.2计算支座反力…………………………………………………5
2.3支座平面尺寸的确定……………………………………………5
2.4确定支座的厚度……………………………………………6
2.5支座偏转情况的验算……………………………………………6
2.6验算支座的抗滑稳定性……………………………………………7
3桥墩构造设计…………………………………………………………8
3.1桥墩类型和主要材料……………………………………………8
3.2桥墩截面尺寸拟定…………………………………………………8
3.3盖梁计算………………………………………………………9
3.4墩柱计算…………………………………………………………25
3.5桩基的设计………………………………………………31
4桥台的设计……………………………………………………39
4.1桥台类型和主要材料……………………………………………39
4.2 桥台一般构造尺寸的拟定………………………………………39
4.3台帽计算……………………………………………………39
4.4台墙计算……………………………………………………47
4.5背墙计算…………………………………………………60
4.6耳墙计算…………………………………………………61
5工程概算……………………………………………………63
5.1概算费用的组成…………………………………………………63
5.2本项目概预算编制…………………………………………………64
6结论…………………………………………………………………65
致谢……………………………………………………………………66
参考文献………………………………………………………………67
附录A 译文……………………………………………………68
附录B 外文文献………………………………………………………73
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