本文關(guān)鍵詞： 裝配式混凝土結(jié)構(gòu) 梁-柱節(jié)點 柱-柱節(jié)點 鋼筋套筒灌漿連接 鋼筋漿錨搭接連接 優(yōu)化設(shè)計 接頭型式檢驗　出處：《安徽理工大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著現(xiàn)代住宅產(chǎn)業(yè)化不斷發(fā)展,裝配式混凝土結(jié)構(gòu)采用了構(gòu)件工廠預(yù)制和現(xiàn)場裝配相結(jié)合的方法,達到了保證質(zhì)量和縮短工期的目的。裝配式混凝土結(jié)構(gòu)建筑在生產(chǎn)效率有了明顯的提高,同時節(jié)約能源和資源,體現(xiàn)綠色環(huán)保的理念。裝配式混凝土結(jié)構(gòu)關(guān)鍵節(jié)點處的連接是關(guān)鍵問題,這將對裝配式混凝土結(jié)構(gòu)的安全性有著重大的影響。目前國內(nèi)裝配式混凝土結(jié)構(gòu)在節(jié)點處所采用的鋼筋連接方式主要有鋼筋套筒灌漿連接和鋼筋漿錨搭接連接兩種,分別對這兩種連接方式在連接構(gòu)造、基本原理、破壞模式和施工技術(shù)要點進行說明。當(dāng)前裝配式混凝土結(jié)構(gòu)設(shè)計計算采用了等同現(xiàn)澆或基本等同現(xiàn)澆的設(shè)計計算方法,而實際上裝配式混凝土結(jié)構(gòu)與現(xiàn)澆混凝土結(jié)構(gòu)并不完全相同,因此完全采用現(xiàn)澆混凝土結(jié)構(gòu)的計算體系和方法并不合理。通過比較裝配式混凝土結(jié)構(gòu)與現(xiàn)澆混凝土結(jié)構(gòu)的差異,探尋裝配式混凝土結(jié)構(gòu)連接節(jié)點的計算體系和方法。并對梁-柱節(jié)點和柱-柱節(jié)點連接做如下處理:(1)對梁-柱節(jié)點鋼筋的連接方式由搭接改為套筒灌漿連接,混凝土由現(xiàn)澆改為灌漿,原來梁-柱節(jié)點的剛性連接改為了套筒灌漿連;(2)對預(yù)制柱進行分段,各段柱-柱鋼筋的連接方式采用套筒灌漿連接,混凝土由現(xiàn)澆改為灌漿,預(yù)制柱之間同樣采用套筒灌漿連接。通過利用等強連接進行結(jié)構(gòu)優(yōu)化方案設(shè)計。在具體應(yīng)用種采用鋼筋套筒灌漿連接技術(shù)分別對梁-柱節(jié)點和柱-柱節(jié)點進行優(yōu)化設(shè)計,并做出效果評價得出采用鋼筋套筒灌漿連接的節(jié)點在性能上優(yōu)于采用混凝土現(xiàn)澆連接的節(jié)點,分別對鋼筋套筒灌漿連接接頭進行偏置單向拉伸試驗、對中單向拉伸試驗、高應(yīng)力反復(fù)拉壓試驗和大變形反復(fù)拉壓試驗,試驗結(jié)果表明:連接鋼筋斷裂先于套筒被拉斷和灌漿料被拔出,進一步驗證梁-柱節(jié)點和柱-柱節(jié)點采用鋼筋套筒灌漿連接的合理性和安全性。鋼筋套筒灌漿連接技術(shù)在關(guān)鍵節(jié)點上的應(yīng)用對裝配式混凝土結(jié)構(gòu)的發(fā)展具有較為廣泛的前景。
[Abstract]:With the continuous development of the industrialization of modern housing, the prefabricated concrete structure adopts the method of combining the prefabrication of the component factory with the on-site assembly. In order to ensure the quality and shorten the construction period, the production efficiency of the prefabricated concrete structure building has been improved obviously, and energy and resources have been saved at the same time. The key problem is the connection of the key joints of the assembled concrete structure. This will have a great impact on the safety of the assembled concrete structure. At present, there are two kinds of reinforced concrete structures in China, which are reinforced sleeve grouting connection and reinforced mortar anchor lapping connection. The connection structure, the basic principle, the failure mode and the key points of construction technology are explained respectively. At present, the design and calculation methods of equivalent cast-in-place or basic equivalent cast-in-place are used in the design and calculation of the assembled concrete structure. In fact, the prefabricated concrete structure is not exactly the same as the cast-in-place concrete structure, so the calculation system and method of adopting the cast-in-place concrete structure completely is not reasonable. By comparing the difference between the prefabricated concrete structure and the cast-in-place concrete structure, This paper explores the calculation system and method of the connection joints of prefabricated concrete structures. The connection between beam-column joints and column-column joints is treated as follows: 1) the connection mode of beam-column joints is changed from lap connection to sleeve grouting connection. The concrete is changed from cast-in-situ to grouting, and the rigid connection of beam-column joint is changed to sleeve grouting to link the precast column. The connecting mode of steel bar between column and column is connected with sleeve grouting, and the concrete is changed from cast-in-place to grouting. The sleeve grouting connection is also used between the prefabricated columns. The structural optimization scheme is designed by using the equal strength connection. In the concrete application, the beam-column joints and the column-column joints are designed optimally by using the reinforced sleeve grouting connection technology, respectively. The results show that the performance of the joints with reinforced sleeve grouting connections is better than that with concrete cast-in-place joints. The eccentric uniaxial tensile tests and the middle uniaxial tensile tests are carried out on the joints of reinforced sleeve grouting connections respectively. The high stress repeated tensile compression test and the large deformation repeated tension compression test show that the connecting steel bar breaks before the sleeve is pulled and the grouting material is pulled out. The rationality and safety of reinforced sleeve grouting connection for beam-column and column-column joints are further verified. The application of reinforced sleeve grouting in key joints has a broad prospect for the development of prefabricated concrete structures.
【學(xué)位授予單位】：安徽理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TU758.12

【參考文獻】

相關(guān)期刊論文 前10條

1 高向玲;徐龍標;李杰;曹楊;;裝配式混凝土梁柱節(jié)點試驗及受力性能分析[J];華中科技大學(xué)學(xué)報(自然科學(xué)版);2016年10期

2 程東輝;田曄環(huán);許鵬程;;純干裝配式混凝土節(jié)點性能研究綜述[J];山西建筑;2016年24期

3 潘志宏;周智彬;李愛群;張義保;朱延章;宋惠峰;;混凝土柱-鋼梁混合結(jié)構(gòu)栓接節(jié)點的抗震性能試驗研究[J];應(yīng)用基礎(chǔ)與工程科學(xué)學(xué)報;2016年04期

4 趙廣軍;;預(yù)制裝配式混凝土結(jié)構(gòu)發(fā)展現(xiàn)狀分析[J];工程質(zhì)量;2016年07期

5 王亞超;李俊峰;蔣世林;張峰;;裝配式混凝土結(jié)構(gòu)設(shè)計關(guān)鍵連接技術(shù)研究[J];建筑結(jié)構(gòu);2016年10期

6 朱清華;劉興亞;錢冠龍;郝敏;;低負溫鋼筋連接用套筒灌漿料的應(yīng)用研究[J];施工技術(shù);2016年10期

7 劉天姿;閆少華;王維;;裝配式混凝土結(jié)構(gòu)研究現(xiàn)狀與展望[J];山西建筑;2016年13期

8 曹楊;孫千偉;宮文軍;魏宏超;丁文勝;王國林;;新型裝配式混凝土框架型鋼節(jié)點試驗[J];建筑科學(xué)與工程學(xué)報;2016年02期

9 謝志英;桓秀劍;陶勝;;裝配式混凝土結(jié)構(gòu)的發(fā)展與應(yīng)用[J];四川建材;2016年01期

10 程蓓;苗小燕;徐建偉;;一種新型裝配式混凝土框架結(jié)構(gòu)連接節(jié)點試驗研究[J];工業(yè)建筑;2015年12期

，

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