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30m+30m+30m+30m預應力混凝土連續梁橋設計+CAD圖紙

時間:2019-05-04 21:38來源:畢業論文
跨徑布置為:30m+30m+30m+30m,為分離式設計,半幅橋面寬19.2m,分離式雙向八車道,設有2m寬的人行道。主梁施工采用分段支架施工,對稱平衡澆筑混凝土

摘要本畢業畢業設計是關于中大跨度預應力混凝土連續梁橋上部結構的設計。預應力混凝土連續梁橋具有以下優點:結構受力性能好、變形小、伸縮縫少、養護工程量小、抗震能力強。
本畢業設計的連續梁橋為昆山市趙家橋,橋梁跨度為四跨,跨徑布置為:30m+30m+30m+30m,為分離式設計,半幅橋面寬19.2m,分離式雙向八車道,設有2m寬的人行道。主梁施工采用分段支架施工,對稱平衡澆筑混凝土。35155
本畢業設計旨在運用大型有限元軟件 Midas 設計一座4×30m的先簡支后連續的預應力混凝土連續梁橋。首先根據國家現行規范和目前同類結構設計中的做法進行了混凝土收縮徐變函數定義及上部結構截面選擇。其次,通過建立有限元模型對恒載、活載內力進行了計算并進行了荷載組合。再次,根據結構在承載能力極限狀態和正常使用極限狀態的內力估算并布置預應力鋼束,并驗算了各項應力。最后對橫隔板、行車道板及下部結構進行了設計。
畢業論文關鍵詞: 預應力混凝土、連續梁、T梁
Abstract
This graduation design is about the design of the upper structure of middle span PC continuous girder bridge. The pre-stressed concrete continuous girder bridge has the following advantages: the structure is good, the deformation is small, the expansion joint is little, the maintenance engineering is small, and the earthquake resistance is strong.
The graduation design of continuous beam bridge Zhao Jia Qiao, Kunshan City, span bridge spans, span arrangement: 30m+30m+30m+30m. For the separation of design, the half width of the deck width of 19.2m and separation type two-way eight lane, a 2m wide sidewalks. Construction of the main girder using segmental bracket construction, symmetrical balance pouring concrete.
源`自*六)維[論*文'網www.aftnzs.live

This graduation design is to use large-scale finite element software MIDAS design of a 4 * 30m to Jane supported continuous prestressed concrete continuous beam bridge. Firstly, the definition of shrinkage and creep function of concrete and the selection of superstructure section are carried out according to the current codes of the state and the current practice of the similar structure design.. Secondly, by establishing the finite element model, the internal force of dead load and live load are calculated and load combination is carried out.. Thirdly, according to the internal force of the structure in the load bearing capacity limit state and normal use limit state, the prestressed steel bundle is calculated and the stress is checked.. At the end of the diaphragm, and the lower deck structure design.
Keywords: prestressed concrete continuous beam T beam
目錄
1緒論    6
1.1預應力混凝土連續梁橋概述    6
1.2  畢業設計的目的與意義    6
2設計資料    8
2.1橋梁概況    8
2.2 設計參數    8
2.3 工程地質    8
2.4場地水文地質條件    9
2.5工程設計參數    10
2.6規范標準    10
3 橋梁結構的總體布置及結構尺寸擬定    11
3.1本橋主要材料    11
3.1.1混凝土    11           
3.1.2預應力鋼絞線    11
3.1.3普通鋼筋    12   
3.2結構尺寸圖    12
3.2.1橫截面    13
3.2.2T梁截面    14
3.3毛截面的幾何特性    16
源`自*六)維[論*文'網www.aftnzs.live

4 荷載計算    17
4.1主梁分段與施工方法    17
4.1.1分段原則    17
4.1.2具體分段    17
4.2計算模型    17 30m+30m+30m+30m預應力混凝土連續梁橋設計+CAD圖紙:http://www.aftnzs.live/gongcheng/20190504/32978.html
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