本文關(guān)鍵詞： 鋼筋套筒灌漿連接 高溫作用 連接性能 粘結(jié)錨固 破壞模式　出處：《蘇州科技大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：近年來(lái),隨著我國(guó)住宅產(chǎn)業(yè)化進(jìn)程的快速發(fā)展,裝配式建筑作為一種國(guó)家和地方政府大力推廣的結(jié)構(gòu)形式,逐漸成為建設(shè)工程領(lǐng)域的研究熱點(diǎn)。鋼筋灌漿套筒連接技術(shù)是預(yù)制裝配式結(jié)構(gòu)構(gòu)件連接的關(guān)鍵技術(shù)之一,也是預(yù)制裝配式建筑使用和推廣過(guò)程中要解決的主要問(wèn)題。目前國(guó)內(nèi)外對(duì)灌漿套筒的研究主要集中在常溫下的性能上,而對(duì)于灌漿連接在高溫下的力學(xué)性能卻鮮有報(bào)道。本文開(kāi)展灌漿套筒連接試件的高溫試驗(yàn)研究,對(duì)試件在高溫下的極限承載力、延性、破壞模式等性能進(jìn)行分析,并應(yīng)用有限元分析軟件ABAQUS對(duì)連接高溫下的粘結(jié)滑移性能進(jìn)行模擬,得到不同直徑的鋼筋應(yīng)用套筒灌漿連接的高溫性能。主要工作如下:(1)進(jìn)行了16mm、20mm和25mm三種鋼筋直徑,六種試驗(yàn)溫度條件下鋼筋灌漿套筒連接試件的高溫試驗(yàn)。每個(gè)溫度測(cè)點(diǎn)下每種鋼筋直徑各有三個(gè)試件,共54個(gè)試件。(2)獲得了試件荷載-位移曲線及破壞模式。根據(jù)高溫下試件的荷載位移曲線分析了連接的極限荷載、荷載位移剛度、彈性段的粘結(jié)強(qiáng)度、極限強(qiáng)度、延性等。(3)對(duì)比了常溫和高溫下鋼筋灌漿連接的破壞模式,得到不同溫度下和各種鋼筋直徑連接件的破壞模式規(guī)律。(4)利用有限元軟件ABAQUS對(duì)高溫下鋼筋灌漿套筒連接的性能進(jìn)行了模擬,通過(guò)非線性彈簧spring2來(lái)模擬鋼筋和灌漿料界面上的粘結(jié)作用,進(jìn)而分析套筒灌漿連接的粘結(jié)錨固作用,并與試驗(yàn)數(shù)據(jù)進(jìn)行對(duì)比。
[Abstract]:In recent years, with the rapid development of China's residential industrialization process, the structure form of prefabricated building as a national and local government's promotion, has gradually become a hot research field of construction engineering. The reinforced grouting sleeve connection technology is the key technology of prefabricated structural members connected to the main problems to be solved are prefabricated the construction and use of the promotion process. The performance of the current research on the grouting sleeve at home and abroad are mainly concentrated in room temperature, and the mechanical properties of grouting connection under high temperature has been reported. This paper carried out experimental study on high temperature grouting sleeve connection specimens, the limit of the specimen under high temperature bearing capacity and ductility. Analysis of failure mode and other properties, and the application of finite element analysis software ABAQUS to connect the bond slip properties under high temperature were simulated, obtained with different diameter steel should be set High performance grouting tube connection. The main work is as follows: (1) were 16mm, 20mm and 25mm three kinds of bar diameter, high temperature test six test temperature reinforced grouting sleeve connection specimens. Each temperature measuring points under each bar diameter of each of the three specimens, a total of 54 specimens. (2) the specimen load displacement curves and failure modes. According to the load displacement curve under high temperature specimen analysis of the ultimate load connection, load displacement stiffness, bond strength, elastic ultimate strength, ductility and so on. (3) compared with normal and high temperature reinforced grouting connection failure mode the failure mode, obtained under different temperature and different diameter steel connections. (4) on the performance of high temperature reinforced grouting sleeve connection was simulated by finite element software ABAQUS to simulate bonding reinforcement and grouting material on the interface through a nonlinear spring spring2. The bond anchorage effect of the sleeve grouting is analyzed and compared with the experimental data.

【學(xué)位授予單位】：蘇州科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TU741;TU756

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