有粘結(jié)預(yù)應(yīng)力在高層框架結(jié)構(gòu)中的應(yīng)用及施工控制技術(shù)研究
發(fā)布時(shí)間：2018-08-17 14:24
【摘要】：隨著社會(huì)科學(xué)技術(shù)水平的提高,建筑結(jié)構(gòu)也逐漸向高層、大跨度方向發(fā)展。同時(shí)人們對材料的充分利用、耐久性等方面有了更高的要求,有粘結(jié)預(yù)應(yīng)力混凝土結(jié)構(gòu)是利用高性能材料、現(xiàn)代設(shè)計(jì)理論和先進(jìn)施工工藝設(shè)計(jì)建造起來的高效結(jié)構(gòu)。與非預(yù)應(yīng)力混凝土結(jié)構(gòu)相比,有粘結(jié)預(yù)應(yīng)力混凝土結(jié)構(gòu)不僅具有跨越能力大、受力性能好、使用性能優(yōu)越、耐久性高、輕巧美觀等優(yōu)點(diǎn),而且較為經(jīng)濟(jì)、節(jié)材、節(jié)能。因此,預(yù)應(yīng)力混凝土結(jié)構(gòu)是建造高層建筑、大跨度大空間結(jié)構(gòu)和重載結(jié)構(gòu)以及特種結(jié)構(gòu)及特殊用途工程中不可缺少的重要結(jié)構(gòu)型式之一。后張有粘結(jié)預(yù)應(yīng)力混凝土結(jié)構(gòu)是預(yù)應(yīng)力混凝土結(jié)構(gòu)的主要結(jié)構(gòu)形式之一,并在單層、多層大跨度建筑工程中得到了較為廣泛的應(yīng)用。本論文以蘇州某辦公樓建筑為例,從預(yù)應(yīng)力混凝土框架結(jié)構(gòu)有粘結(jié)預(yù)應(yīng)力后張法施工的基本概念入手,結(jié)合具體本工程實(shí)例通過對其內(nèi)容、特點(diǎn)、工藝、施工質(zhì)量控制等的研究,著重介紹了該工程預(yù)應(yīng)力梁在跨度大、單孔預(yù)應(yīng)力束較多并且較長、張拉所需較大千斤頂、預(yù)應(yīng)力柱和梁采用變角度張拉等施工中所遇到的難點(diǎn)以及相應(yīng)的解決措施,提出一套有粘結(jié)預(yù)應(yīng)力混凝土框架結(jié)構(gòu)大跨度連續(xù)梁后張法具體施工工藝方法和質(zhì)量控制要點(diǎn)。對大跨度連續(xù)梁有粘結(jié)預(yù)應(yīng)力后張法施工工藝中的材料選用,孔道的預(yù)留,預(yù)應(yīng)力筋的制作、穿束、張拉、孔道灌漿等工序在施工工藝中的具體操作方法提出了自己的見解,探討了一系列較符合施工實(shí)際要求及經(jīng)濟(jì)效益較好的施工工藝,在材料選擇、工具構(gòu)件、單項(xiàng)施工組織計(jì)等方面提出了改進(jìn)措施,為以后的后張法有粘結(jié)預(yù)應(yīng)力混凝土施工提供了參考依據(jù)。
[Abstract]:With the improvement of social science and technology, the building structure is gradually developing to the high-rise and long-span direction. At the same time, people have higher requirements for the full use and durability of materials. The bonded prestressed concrete structure is an efficient structure designed and constructed by using high performance materials, modern design theory and advanced construction technology. Compared with the non-prestressed concrete structure, the bonded prestressed concrete structure not only has the advantages of large span ability, good mechanical performance, superior performance, high durability, lightness and beauty, but also has the advantages of economy, material saving and energy saving. Therefore, prestressed concrete structure is one of the indispensable structural types in the construction of high-rise buildings, large-span and large-space structures and heavy load structures, as well as special structures and special purpose projects. Post-tensioned bonded prestressed concrete structure is one of the main structural forms of prestressed concrete structure and has been widely used in monolayer and multi-story long-span construction projects. Taking an office building in Suzhou as an example, this paper starts with the basic concept of Zhang Fa construction of prestressed concrete frame structure after bonded prestressing, and combines the concrete project example through the content, characteristics and technology of the construction. Based on the research of construction quality control, this paper emphatically introduces that the prestressed beam in this project has a large span, many prestressing tendons with one hole and a long length, and the large Jack is needed for the tension. The difficulties encountered in the construction of prestressed columns and beams with variable angle tensioning and the corresponding solving measures are put forward, and a set of concrete construction techniques and quality control points of Zhang Fa after long span continuous beams of prestressed concrete frame structures with bond are put forward. In this paper, the author puts forward his own opinions on the material selection, the reservation of holes, the making of prestressing tendons, the tensioning, and the concrete operation methods of the hole grouting in the construction process of long-span continuous beams with bonded prestressing. This paper probes into a series of construction techniques which meet the practical requirements of construction and have better economic benefits, and puts forward some improvement measures in the aspects of material selection, tool members, single construction organization, etc. It provides a reference for the post-Zhang Fa bonded prestressed concrete construction.
【學(xué)位授予單位】：蘇州科技學(xué)院
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TU974;TU757
本文編號：2187918
[Abstract]:With the improvement of social science and technology, the building structure is gradually developing to the high-rise and long-span direction. At the same time, people have higher requirements for the full use and durability of materials. The bonded prestressed concrete structure is an efficient structure designed and constructed by using high performance materials, modern design theory and advanced construction technology. Compared with the non-prestressed concrete structure, the bonded prestressed concrete structure not only has the advantages of large span ability, good mechanical performance, superior performance, high durability, lightness and beauty, but also has the advantages of economy, material saving and energy saving. Therefore, prestressed concrete structure is one of the indispensable structural types in the construction of high-rise buildings, large-span and large-space structures and heavy load structures, as well as special structures and special purpose projects. Post-tensioned bonded prestressed concrete structure is one of the main structural forms of prestressed concrete structure and has been widely used in monolayer and multi-story long-span construction projects. Taking an office building in Suzhou as an example, this paper starts with the basic concept of Zhang Fa construction of prestressed concrete frame structure after bonded prestressing, and combines the concrete project example through the content, characteristics and technology of the construction. Based on the research of construction quality control, this paper emphatically introduces that the prestressed beam in this project has a large span, many prestressing tendons with one hole and a long length, and the large Jack is needed for the tension. The difficulties encountered in the construction of prestressed columns and beams with variable angle tensioning and the corresponding solving measures are put forward, and a set of concrete construction techniques and quality control points of Zhang Fa after long span continuous beams of prestressed concrete frame structures with bond are put forward. In this paper, the author puts forward his own opinions on the material selection, the reservation of holes, the making of prestressing tendons, the tensioning, and the concrete operation methods of the hole grouting in the construction process of long-span continuous beams with bonded prestressing. This paper probes into a series of construction techniques which meet the practical requirements of construction and have better economic benefits, and puts forward some improvement measures in the aspects of material selection, tool members, single construction organization, etc. It provides a reference for the post-Zhang Fa bonded prestressed concrete construction.
【學(xué)位授予單位】：蘇州科技學(xué)院
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TU974;TU757
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相關(guān)期刊論文 前3條
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2 韓重慶,孟少平;新規(guī)范中對預(yù)應(yīng)力混凝土框架梁的構(gòu)造要求[J];江蘇建筑;2003年04期
3 房貞政;無粘結(jié)預(yù)應(yīng)力混凝土連續(xù)梁的試驗(yàn)研究[J];福州大學(xué)學(xué)報(bào)(自然科學(xué)版);1994年06期
，本文編號：2187918
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