鋼筋混凝土框架結構加固技術的研究與應用
發(fā)布時間：2018-11-14 21:03
【摘要】：本文研究的主要內容是既有建筑的可靠性鑒定及其加固技術。我國房屋建筑用地資源有限、原有建筑不滿足目前的使用要求、地震災害造成既有建筑存在安全隱患、偶然作用使得建筑部分構件出現(xiàn)損傷等等多重原因造成建筑物急需進行加固維修,促使近年來我國建筑加層、加固技術發(fā)展越來越快,對既有建筑進行加固施工已經成為政府部門及建筑行業(yè)廣泛關注和研究的問題。影響建筑物加固的因素有很多,如建筑結構形式不一、施工難易程度不同、加固改造要求不同、后期使用條件不同等。 對既有建筑結構進行加固,首先需要對其進行可靠性分析。既有建筑的可靠性分析建立在現(xiàn)有的結構服役信息的基礎上,并據(jù)此推斷出在建筑剩余服役期內結構的可靠性等。目前較為常用的既有建筑可靠性鑒定方法有：傳統(tǒng)經驗鑒定法、模糊評價法、實用鑒定法、概率論評價法、借助PKPM軟件進行可靠性分析等。本文研究比較了幾種常見鑒定技術的優(yōu)缺點及其適用范圍,通過分析兩個實際的工程項目,對常見的幾種建筑可靠性鑒定技術和PKPM軟件鑒定技術進行比較,證明運用計算機軟件進行既有建筑的可靠性鑒定比其他幾種鑒定方法可操作性強,PKPM軟件比其他幾種常用可靠性鑒定技術能更快速、科學的對建筑物進行可靠性分析、鑒定。 既有建筑結構的加固有著不同于新建建筑的特殊性：施工現(xiàn)場狹小、施工受到局限、新舊建筑結合處施工工藝要求高等。目前我國使用較多的加固技術主要有增大截面加固法、外貼型鋼加固法、粘貼碳纖維復合材料加固法、鋼絲網復合砂漿加固法、鋼筋網砂漿加固法、鋼筋鋼絲網復合砂漿加固法、外套鋼框加固法等,這幾種常用的加固技術各有優(yōu)缺點。本文分析研究了幾種常用加固技術的特點及其適用范圍,并通過分析某鋼筋混凝土柱構件加固案例,比較了鋼筋鋼絲網符合砂漿加固技術和套箍加固技術的施工工藝、承載力提高能力,還借助了廣聯(lián)達計算軟件方法比較兩種加固技術加固鋼筋混凝土柱構件的造價,在承載力和剛度方面的提高及造價幾方面證明了鋼筋鋼絲網復合砂漿加固技術加固柱構件不僅比其他常用加固方法更加合理高效,而且更加經濟,具有推廣使用的實際意義。 本文還通過分析某一食堂加層加固案例,比較幾種目前常用的加層方式后得出外套鋼架加固混凝土結構在某些特殊加固工程中應用具有其優(yōu)越性的結論,證明外套鋼架的加固技術具有實際推廣意義。
[Abstract]:The main content of this paper is the reliability appraisal and reinforcement technology of existing buildings. Because of the limited land resources for housing construction in our country, the original buildings do not meet the current requirements for use, and the existing buildings have hidden dangers caused by earthquake disasters. Accidental action causes the damage of some parts of the building and many other reasons, resulting in the urgent need for strengthening and maintenance of the building. In recent years, the reinforcement technology is developing more and more rapidly. Reinforcement of existing buildings has become a widespread concern and research of government departments and construction industry. There are many factors that influence the reinforcement of buildings, such as the different forms of building structures, the different degree of construction difficulty, the different requirements of reinforcement and reconstruction, and the different conditions of later use. To reinforce the existing building structure, it is necessary to analyze its reliability first. The reliability analysis of the existing buildings is based on the existing service information of the structures and the reliability of the structures during the remaining service periods of the buildings is inferred. At present, the commonly used methods for reliability appraisal of existing buildings are: traditional empirical appraisal method, fuzzy evaluation method, practical appraisal method, probability theory evaluation method, reliability analysis with PKPM software, etc. This paper studies and compares the advantages and disadvantages of several common identification techniques and their scope of application. Through the analysis of two practical engineering projects, this paper compares several common building reliability identification techniques with PKPM software identification techniques. It is proved that using computer software to identify the reliability of existing buildings is more operable than other identification methods, and that PKPM software can be used to analyze and identify the reliability of buildings more quickly than other commonly used reliability identification techniques. The reinforcement of the existing building structure is different from that of the new building: the construction site is small, the construction is limited, and the construction technology of the new and old buildings is high. At present, more and more reinforcement techniques are used in our country, such as reinforcement of enlarged section, reinforcement of external steel, reinforcement of carbon fiber composite material, reinforcement of steel wire mesh composite mortar, reinforcement of reinforced concrete mesh mortar, reinforcement of steel wire mesh mortar, The reinforcement method of steel wire mesh composite mortar and the reinforcement method of overburden steel frame have their own advantages and disadvantages. In this paper, the characteristics and applicable range of several commonly used reinforcement techniques are analyzed and studied. By analyzing a case of reinforcement of reinforced concrete column members, the construction technology of reinforced steel wire mesh in accordance with mortar reinforcement technology and hoop reinforcement technology is compared. In order to improve the capacity, the cost of strengthening reinforced concrete column members with two kinds of reinforcement techniques is compared by means of the Guanglianda calculation software method. The improvement of bearing capacity and stiffness and the cost of strengthening column members with steel wire mesh composite mortar not only are more reasonable and efficient than other commonly used reinforcement methods, but also more economical, and have practical significance of popularizing and using. By analyzing the case of adding layer in a canteen, this paper compares several commonly used ways of adding layer, and draws the conclusion that the application of overcoat steel frame to reinforce concrete structure in some special reinforcement projects has its superiority. It is proved that the reinforcement technology of overcoat steel frame has practical popularization significance.
【學位授予單位】：西安工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TU375.4
本文編號：2332300
[Abstract]:The main content of this paper is the reliability appraisal and reinforcement technology of existing buildings. Because of the limited land resources for housing construction in our country, the original buildings do not meet the current requirements for use, and the existing buildings have hidden dangers caused by earthquake disasters. Accidental action causes the damage of some parts of the building and many other reasons, resulting in the urgent need for strengthening and maintenance of the building. In recent years, the reinforcement technology is developing more and more rapidly. Reinforcement of existing buildings has become a widespread concern and research of government departments and construction industry. There are many factors that influence the reinforcement of buildings, such as the different forms of building structures, the different degree of construction difficulty, the different requirements of reinforcement and reconstruction, and the different conditions of later use. To reinforce the existing building structure, it is necessary to analyze its reliability first. The reliability analysis of the existing buildings is based on the existing service information of the structures and the reliability of the structures during the remaining service periods of the buildings is inferred. At present, the commonly used methods for reliability appraisal of existing buildings are: traditional empirical appraisal method, fuzzy evaluation method, practical appraisal method, probability theory evaluation method, reliability analysis with PKPM software, etc. This paper studies and compares the advantages and disadvantages of several common identification techniques and their scope of application. Through the analysis of two practical engineering projects, this paper compares several common building reliability identification techniques with PKPM software identification techniques. It is proved that using computer software to identify the reliability of existing buildings is more operable than other identification methods, and that PKPM software can be used to analyze and identify the reliability of buildings more quickly than other commonly used reliability identification techniques. The reinforcement of the existing building structure is different from that of the new building: the construction site is small, the construction is limited, and the construction technology of the new and old buildings is high. At present, more and more reinforcement techniques are used in our country, such as reinforcement of enlarged section, reinforcement of external steel, reinforcement of carbon fiber composite material, reinforcement of steel wire mesh composite mortar, reinforcement of reinforced concrete mesh mortar, reinforcement of steel wire mesh mortar, The reinforcement method of steel wire mesh composite mortar and the reinforcement method of overburden steel frame have their own advantages and disadvantages. In this paper, the characteristics and applicable range of several commonly used reinforcement techniques are analyzed and studied. By analyzing a case of reinforcement of reinforced concrete column members, the construction technology of reinforced steel wire mesh in accordance with mortar reinforcement technology and hoop reinforcement technology is compared. In order to improve the capacity, the cost of strengthening reinforced concrete column members with two kinds of reinforcement techniques is compared by means of the Guanglianda calculation software method. The improvement of bearing capacity and stiffness and the cost of strengthening column members with steel wire mesh composite mortar not only are more reasonable and efficient than other commonly used reinforcement methods, but also more economical, and have practical significance of popularizing and using. By analyzing the case of adding layer in a canteen, this paper compares several commonly used ways of adding layer, and draws the conclusion that the application of overcoat steel frame to reinforce concrete structure in some special reinforcement projects has its superiority. It is proved that the reinforcement technology of overcoat steel frame has practical popularization significance.
【學位授予單位】：西安工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TU375.4
【參考文獻】
相關期刊論文 前10條
1 張照福;高冬芹;;建筑抗震鑒定加固的歷史現(xiàn)狀和展望[J];低溫建筑技術;2009年04期
2 王宏偉;;計算機技術在施工過程中的應用[J];工程質量;2008年04期
3 禹智濤,李士恩;鋼纖維增強鋼絲網混凝土小梁力學性能試驗研究[J];混凝土與水泥制品;2003年03期
4 李明,王志浩;鋼筋網水泥砂漿加固低強度砂漿磚砌體的試驗研究[J];建筑結構;2003年10期
5 蔡新江;田石柱;王大鵬;王偉;肖巖;董旭華;;FRP加固橋梁RC短柱擬靜力及網絡擬動力試驗[J];建筑結構學報;2009年02期
6 熊光晶;焊接鋼絲網水泥在彎曲疲勞荷載作用下的應力計算[J];力學與實踐;1997年06期
7 李威;;計算機技術在建筑施工中的應用探討[J];門窗;2013年05期
8 鐘登華;任炳昱;吳康新;;Construction Simulation and Real-Time Control for High Arch Dam[J];Transactions of Tianjin University;2008年04期
9 李明,陸洲導,王李果;玻璃鋼圍覆加固鋼筋混凝土偏心受壓柱的試驗研究[J];土木工程學報;2000年03期
10 許清風;江歡成;朱雷;杜剛;;鋼筋網水泥砂漿加固舊磚墻的試驗研究[J];土木工程學報;2009年04期
相關博士學位論文 前4條
1 鄭怡;既有結構構件可靠性研究與應用[D];大連理工大學;2009年
2 鄭華彬;基于目標使用期和整體可靠性的既有鋼筋混凝土結構鑒定與加固研究[D];華南理工大學;2010年
3 孫昊;套箍技術加固既有鋼筋混凝土拱橋的試驗研究[D];西南交通大學;2011年
4 白雪霜;現(xiàn)有鋼筋混凝土框架結構抗震鑒定方法試驗研究[D];中國建筑科學研究院;2012年
，本文編號：2332300
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