典型高铁桥梁(32m简支梁)技术状态检测及分析(含CAD图)

典型高铁桥梁(32m简支梁)技术状态检测及分析(含CAD图)(任务书,开题报告,外文翻译,论文说明书12800字,CAD图8张)
摘要
桥梁技术状态检测是实现桥梁安全工作的重要举措。随着交通运输的快速发展和保障公路铁路桥梁安全运营的实际需求 ,桥梁检测养护已经成为交通部门的重点工作。本论文为根据国家973计划子项目课题3《高速铁路桥梁动力性能演变及服役安全评估》要求，对现代高速铁路最为常用的双线无砟轨道后张法预应力简支梁桥。跨径31.5m，截面宽度为12m,梁高3.05m，单箱单室。
计算过程主要通过Midas软件，对桥梁上部结构、桥墩、桩基础进行各种组合验算，通过验算结果拟定检测试验方案。
关键词：预应力  简支  验算  检测

Abstract
Technical state of bridge detection is an important measure to realize the bridge safety work. With the rapid development of transportation and ensuring the safe operation of highway railway bridge of the actual demand, bridge inspection and maintenance has become the focus of work in the Department of transportation. In this paper, based on the sub project in national 973 program 3 "evolution and service performance of high-speed railway bridge safety assessment" requirement of modern high-speed railway, the most commonly used double ballastless track of post tensioned prestressed concrete beam bridge. Span 31.5m, width 12M, high beam 3.05M, single box single room.

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The calculation process by Midas software, for various combinations of the calculation of the bridge superstructure, bridge pier, pile foundation, through the test plan test results.
Keywords: prestressed  simply supported  checking  detection

本次毕业设计为32m简支梁技术状态检测及分析，桥宽12m，梁高3.05m，单箱单室。桥上为双线布置，无砟轨道。全梁分为32个单元，每个单元约1m。
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目录
摘要...............................................................I
Abstract...........................................................II
绪论...............................................................1
第一章 上部结构
1.1上部结构计算方法................................................2
1.2主梁的主要材料、参数............................................2
1.3结构模型描述....................................................8
1.4承载能力极限状态容许应力计算....................................9

1.5截面验算.......................................................13
1.6结构变形、变位验算.............................................16
1.7简支梁竖向自振频率验算.........................................17
第二章 墩台计算
2.1荷载计算.......................................................20
2.2截面承载验算...................................................25
第三章  桩基础计算
3.1结构尺寸及材料.................................................26                            
3.2地质概况.......................................................27
3.3荷载计算（以82#墩为例）........................................28
3.4桩基础位移及内力计算...........................................28
3.5计算承台所受土抗力.............................................31
3.6计算桩基础的整体刚度系数.......................................31

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3.7计算承台的位移.................................................32
3.8计算各排桩的桩顶内力...........................................32
3.9验算单桩的轴向受压容许承载力...................................33
第四章   检测试验技术方案
4.1工程概况.......................................................34
4.2检测目的.......................................................34
4.3检测试验内容...................................................35
4.4检测方法.......................................................38
参考文献..........................................................47
致谢..............................................................50 [资料来源：www.doc163.com]