本文關(guān)鍵詞：焊接箍筋混凝土梁受剪性能試驗(yàn)研究　出處：《西安建筑科技大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 焊接箍筋 鋼筋混凝土梁 受剪性能 破壞形態(tài) 抗剪承載能力

【摘要】：隨著施工和鋼筋焊接技術(shù)的提高，，焊接箍筋具有節(jié)約鋼材、節(jié)約工時(shí)、方便施工、可工業(yè)化和標(biāo)準(zhǔn)化生產(chǎn)等性能優(yōu)勢(shì)，采用專門的焊機(jī)焊接，制作質(zhì)量可靠，可避免傳統(tǒng)綁扎箍筋在制作及安裝中的各種弊端，具有良好的應(yīng)用前景。然而，目前國(guó)內(nèi)外對(duì)于焊接箍筋混凝土梁抗剪方面的研究較少，缺乏試驗(yàn)資料，現(xiàn)行規(guī)范中的公式是否會(huì)因?yàn)楹附庸拷钆c普通箍筋性能特點(diǎn)不同而不適用于焊接箍筋混凝土梁的抗剪承載力設(shè)計(jì)，因此有必要進(jìn)行焊接箍筋混凝土梁抗剪性能試驗(yàn)研究。 為研究采用焊接箍筋的鋼筋混凝土梁斜截面抗剪性能，本文通過(guò)對(duì)6根焊接箍筋混凝土梁和4根普通綁扎箍筋混凝土梁的斜截面受剪性能試驗(yàn)研究。結(jié)合試驗(yàn)研究，考察了焊接箍筋混凝土梁與普通綁扎箍筋混凝土梁在試驗(yàn)加載過(guò)程中裂縫的產(chǎn)生及開展過(guò)程、梁受剪破壞形態(tài)以及梁的抗剪性能。研究焊接箍筋和普通箍筋在梁試件加載過(guò)程中的受力狀態(tài)，測(cè)試并將焊接箍筋混凝土梁和普通箍筋混凝土梁抗剪承載力及撓度作對(duì)比。 試驗(yàn)研究結(jié)果表明在鋼筋混凝土梁中以焊接箍筋替代傳統(tǒng)綁扎箍筋作為抗剪箍筋是可行的，主要表現(xiàn)在焊接箍筋混凝土梁與普通箍筋混凝土梁的裂縫開展、變形發(fā)展和破壞形態(tài)基本相同，并且焊接箍筋混凝土梁的極限抗剪承載力略高于普通箍筋混凝土梁。將中國(guó)、美國(guó)、新加坡對(duì)于鋼筋混凝土梁抗剪承載力計(jì)算公式理論計(jì)算結(jié)果與試驗(yàn)結(jié)果對(duì)比，發(fā)現(xiàn)采用中國(guó)規(guī)范的計(jì)算公式計(jì)算結(jié)果與試驗(yàn)值吻合較好，建議采用中國(guó)規(guī)范計(jì)算焊接箍筋梁抗剪承載力。 本文研究結(jié)果可為焊接箍筋混凝土梁后續(xù)研究和工程應(yīng)用提供理論依據(jù)。
[Abstract]:With the improvement of construction and steel bar welding technology, welding stirrups have the advantages of saving steel, saving time, convenient construction, industrialization and standardized production. It can avoid all kinds of malpractices in the manufacture and installation of traditional stirrups, and has a good application prospect. However, at present, there are few researches on shear resistance of welded stirrups concrete beams at home and abroad, and lack of experimental data. Whether the formula in the current code is not suitable for the shear bearing capacity design of welded stirrups concrete beams because of the different performance characteristics of welded stirrups and common stirrups. Therefore, it is necessary to test the shear behavior of welded stirrups concrete beams. In order to study the shear behavior of reinforced concrete beams with welded stirrups. In this paper, the shear behavior of 6 welded stirrups concrete beams and 4 common bound stirrups concrete beams are studied. The crack generation and development process of welded stirrups concrete beam and common bound stirrups concrete beam under experimental loading were investigated. The shear failure mode of beam and the shear resistance of beam are studied. The stress state of welded stirrups and common stirrups in the loading process of beam specimens is studied. The shear capacity and deflection of welded stirrups concrete beams and common stirrups concrete beams are tested and compared. The experimental results show that it is feasible to use welded stirrups instead of traditional strapped stirrups as shear stirrups in reinforced concrete beams, mainly in the crack development between welded stirrups concrete beams and ordinary stirrups concrete beams. Deformation development and failure are basically the same, and the ultimate shear capacity of welded stirrups concrete beams is slightly higher than that of ordinary stirrups concrete beams. In Singapore, the theoretical calculation results of shear bearing capacity of reinforced concrete beams are compared with the experimental results, and it is found that the calculated results of the formulas adopted in China Code are in good agreement with the experimental values. It is suggested that the shear capacity of welded stirrups beam should be calculated by Chinese code. The results of this paper can provide theoretical basis for further research and engineering application of welded stirrups concrete beams.
【學(xué)位授予單位】：西安建筑科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TU375.1

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 何理;歐陽(yáng)寧?kù)o;;閃光對(duì)焊封閉箍筋施工技術(shù)應(yīng)用[J];重慶建筑;2011年09期

2 楊力列,楊秀敏;閃光對(duì)焊封閉環(huán)式箍筋應(yīng)用技術(shù)[J];工程質(zhì)量;2004年06期

3 張宏戰(zhàn);黃承逵;張瑞瑾;;鋼纖維高強(qiáng)混凝土箍筋梁抗剪性能試驗(yàn)[J];哈爾濱工業(yè)大學(xué)學(xué)報(bào);2006年10期

4 卜良桃;曾堅(jiān);李為;;鋼纖維水泥砂漿鋼筋網(wǎng)加固RC梁抗剪試驗(yàn)研究[J];湖南大學(xué)學(xué)報(bào)(自然科學(xué)版);2012年02期

5 顏軍;李升才;宋美潔;;蜂窩梁-焊接環(huán)式箍筋柱節(jié)點(diǎn)抗剪受力性能[J];華僑大學(xué)學(xué)報(bào)(自然科學(xué)版);2009年05期

6 顧萬(wàn)黎,任民,畢既華;歐洲鋼筋焊接網(wǎng)技術(shù)考察[J];建筑結(jié)構(gòu);2002年10期

7 魏巍巍;貢金鑫;車軼;;無(wú)腹筋鋼筋混凝土受彎構(gòu)件基于修正壓力場(chǎng)理論的受剪計(jì)算[J];建筑結(jié)構(gòu)學(xué)報(bào);2010年08期

8 魏巍巍;貢金鑫;;基于修正壓力場(chǎng)理論的有腹筋鋼筋混凝土受彎構(gòu)件受剪計(jì)算[J];建筑結(jié)構(gòu)學(xué)報(bào);2011年05期

9 劉立新;鋼筋混凝土深梁、短梁和淺梁受剪承載力的統(tǒng)一計(jì)算方法[J];建筑結(jié)構(gòu)學(xué)報(bào);1995年04期

10 顧萬(wàn)黎;鋼筋焊接網(wǎng)的發(fā)展現(xiàn)狀和前景[J];建筑技術(shù);2004年05期

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