本文關(guān)鍵詞：下承式鋼管混凝土系桿拱橋施工監(jiān)控技術(shù)研究　出處：《合肥工業(yè)大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 鋼管混凝土 系桿拱橋 吊桿力計(jì)算與優(yōu)化 有限元仿真分析 施工監(jiān)控

【摘要】：鋼管混凝土拱橋因其受力性能良好、施工方便、造型美觀和抗震性好等優(yōu)點(diǎn)在工程中得到了廣泛地應(yīng)用。同時(shí)，鋼管混凝土拱橋的施工方法得到了很大的改善和發(fā)展，施工監(jiān)控得到廣泛的重視和提高。本文結(jié)合目前國內(nèi)外鋼管混凝土拱橋的發(fā)展情況，在總結(jié)國內(nèi)外鋼管混凝土拱橋施工和監(jiān)控的基礎(chǔ)上，以臨安雙塔大橋?yàn)楣こ瘫尘�，對鋼管混凝土拱橋的施工工藝和監(jiān)控進(jìn)行較為全面的分析研究。全文完成了以下主要工作: 1、介紹了臨安雙塔大橋施工技術(shù)以及施工控制的方案和內(nèi)容，同時(shí)以系桿拱橋施工過程中的內(nèi)力、線形和吊桿張拉力為控制目標(biāo)，建立了雙塔大橋的施工控制體系。 2、雙塔大橋施工過程的仿真計(jì)算與分析。運(yùn)用有限元軟件Midas/Civil建立全橋模型，對雙塔大橋的施工過程進(jìn)行仿真模擬，了解整個(gè)施工過程中全橋的受力和變形情況，為施工監(jiān)控提供理論依據(jù)以及指導(dǎo)施工。 3、系桿拱橋施工中吊桿張拉的施工控制與優(yōu)化。借助有限元軟件的理論計(jì)算，確定吊桿的初始張拉力，另外，利用影響矩陣法對吊桿張拉力進(jìn)行優(yōu)化，通過對吊桿的二次張拉與優(yōu)化，使得在最終成橋狀態(tài)下全部吊桿力符合設(shè)計(jì)要求。 4、拱腳節(jié)點(diǎn)空間應(yīng)力分析，運(yùn)用大型通用有限元軟件ANSYS對雙塔大橋的拱腳局部進(jìn)行建模分析，掌握拱腳在全橋施工過程中的受力特性，為施工監(jiān)控提供理論依據(jù)和指導(dǎo)。 5、對雙塔大橋的系梁、拱肋的應(yīng)力和線形以及吊桿索力進(jìn)行監(jiān)測和控制，將理論計(jì)算值與實(shí)測值進(jìn)行對比分析，保證誤差控制在設(shè)計(jì)范圍以內(nèi)，結(jié)果證實(shí)了大橋在施工過程中的受力滿足設(shè)計(jì)要求，，監(jiān)控達(dá)到了預(yù)期的目標(biāo)。
[Abstract]:Concrete-filled steel tubular arch bridge has been widely used in engineering because of its good mechanical performance, easy construction, beautiful shape and good seismic resistance. The construction method of CFST arch bridge has been greatly improved and developed, and construction monitoring has been widely paid attention to and enhanced. This paper combines the development of CFST arch bridge at home and abroad. On the basis of summing up the construction and monitoring of concrete-filled steel tube arch bridge at home and abroad, taking the double tower bridge in Lin'an as the engineering background. The construction technology and monitoring of concrete-filled steel tubular arch bridge are analyzed and studied comprehensively. 1. This paper introduces the construction technology, construction control scheme and content of Linan double-tower bridge. At the same time, it takes the internal force, linear shape and tension of suspenders as the control target during the construction of tied arch bridge. The construction control system of double tower bridge is established. 2, the simulation calculation and analysis of the construction process of the double-tower bridge. Using the finite element software Midas/Civil to establish the full-bridge model, the construction process of the double-tower bridge is simulated. To understand the stress and deformation of the whole bridge during the whole construction process, to provide theoretical basis and guide construction for construction monitoring. 3, the construction control and optimization of the suspender tensioning in the construction of tied arch bridge. With the help of the theoretical calculation of finite element software, the initial tension of the suspender is determined. In addition, the influence matrix method is used to optimize the tension of the suspender. Through the secondary tension and optimization of the suspension rod, all the suspender forces meet the design requirements in the final state of the bridge. 4. The spatial stress of arch joint is analyzed, and the local model of double tower bridge is modeled and analyzed by using the large scale finite element software ANSYS, and the mechanical characteristics of arch foot in the whole bridge construction process are grasped. To provide theoretical basis and guidance for construction monitoring. 5. Monitoring and controlling the stress and line shape of the tie beam and arch rib of the double tower bridge as well as the cable force of the suspender, and comparing the theoretical calculation value with the measured value to ensure that the error is controlled within the design range. The results show that the stress of the bridge in the construction process meets the design requirements, and the monitoring achieves the expected goal.
【學(xué)位授予單位】：合肥工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U448.225

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 葉建龍,孫建淵,石洞;梁拱組合橋柔性吊桿張拉力的確定及分析[J];城市道橋與防洪;1999年04期

2 葉建龍,孫建淵,席廣恒;梁拱組合橋柔性吊桿張拉力的確定及分析[J];東北公路;2000年01期

3 虞建成,邵容光,王小林;系桿拱橋吊桿初始張拉力及施工控制[J];東南大學(xué)學(xué)報(bào);1998年03期

4 鐘健聰,李新平;空間系桿拱橋吊桿張拉控制的研究[J];廣東公路交通;2004年02期

5 鐘健聰,李新平;空間組合拱橋仿真分析[J];廣東公路交通;2005年02期

6 鐘健聰;;空間組合拱橋吊桿張拉力的確定[J];廣東公路交通;2008年01期

7 周念先;;大跨拱橋的特點(diǎn)及其發(fā)展途徑 第二講 設(shè)計(jì)[J];華東公路;1990年03期

8 江祥林,曾明水;鋼管混凝土拱橋的施工監(jiān)測[J];華東公路;2002年06期

9 張國泉;徐雷;;無支架施工的系桿拱橋吊桿索力優(yōu)化[J];上海公路;2005年04期

10 李艷明,肖飛;丫髻沙大橋主橋豎轉(zhuǎn)施工控制技術(shù)[J];鐵道標(biāo)準(zhǔn)設(shè)計(jì);2001年06期

本文編號：1434853