【摘要】：社會(huì)的發(fā)展對(duì)房屋建筑結(jié)構(gòu)的設(shè)計(jì)和建造提出了環(huán)保、節(jié)能、抗震等要求，采用裝配整體式框架結(jié)構(gòu)取代現(xiàn)澆式框架結(jié)構(gòu)，可以很好地適應(yīng)和滿足這種要求。 高強(qiáng)螺旋箍筋能夠產(chǎn)生很好的約束作用，有效改善混凝土的脆性，提高延性，因而有利于改善結(jié)構(gòu)的抗震性能。本文將其應(yīng)用于裝配整體式框架結(jié)構(gòu)，提出了一種新型裝配式柱－鋼板栓筋連接高強(qiáng)箍筋約束混凝土柱。連接節(jié)點(diǎn)構(gòu)造為：先將預(yù)埋鋼板焊在上、下柱的縱向鋼筋，然后用外貼鋼板蓋在上、下柱的預(yù)埋鋼板上；預(yù)埋鋼板與外貼鋼板都在指定位置穿孔，，用水平栓筋穿過(guò)鋼板與混凝土柱預(yù)留孔，末端與外貼鋼板焊接，將上、下兩段柱連接成整體柱。通過(guò)試驗(yàn)研究、數(shù)值模擬和連接節(jié)點(diǎn)承載力分析，對(duì)鋼板栓筋連接高強(qiáng)箍筋約束混凝土柱的抗震性能進(jìn)行了研究。 進(jìn)行了2個(gè)鋼板栓筋連接高強(qiáng)箍筋約束混凝土柱、2個(gè)對(duì)比整澆普通筋箍柱及2個(gè)整澆高強(qiáng)箍筋約束混凝土柱的低周反復(fù)水平加載試驗(yàn)。觀測(cè)和記錄了6個(gè)試件受力－變形－損傷－裂縫－屈服的全過(guò)程；分析了各試件的破壞特征、滯回曲線、骨架曲線、剛度衰減、位移延性、耗能能力等。試驗(yàn)表明：在相同條件下，鋼板栓筋連接高強(qiáng)箍筋約束混凝土柱具有與整澆柱相當(dāng)?shù)某休d能力、耗能能力和延性，抗震性能良好；連接節(jié)點(diǎn)未先于構(gòu)件破壞，表明采用焊接及水平栓筋的鋼板栓筋連接方式能滿足強(qiáng)節(jié)點(diǎn)的要求，是安全可靠的。 在試驗(yàn)的基礎(chǔ)上，分析了連接節(jié)點(diǎn)的受力性能；進(jìn)一步推導(dǎo)出連接節(jié)點(diǎn)正截面和斜截面承載力計(jì)算公式；研究了連接節(jié)點(diǎn)處鋼板、焊縫、水平栓筋的強(qiáng)度驗(yàn)算方法，為這種新型連接節(jié)點(diǎn)的設(shè)計(jì)方法提供試驗(yàn)數(shù)據(jù)和理論基礎(chǔ)。 結(jié)合試驗(yàn)，采用ABAQUS軟件建立了鋼板栓筋連接高強(qiáng)箍筋約束混凝土裝配柱的三維實(shí)體有限元模型，分析構(gòu)件在往復(fù)水平荷載作用下的受力過(guò)程、變形大小及應(yīng)力－應(yīng)變分布；對(duì)這種裝配式柱的抗震性能及工程應(yīng)用進(jìn)行了綜合評(píng)價(jià)。
[Abstract]:The development of society has put forward the requirements of environmental protection, energy saving and earthquake resistance to the design and construction of building structure. The use of assembly integral frame structure to replace the cast-in-place frame structure can well adapt to and meet this requirement. The high strength spiral stirrups can effectively improve the brittleness and ductility of concrete and thus improve the seismic performance of the structure. In this paper, a new type of reinforced concrete column with high strength stirrups is proposed for assembling integral frame structure. The connection joint is constructed as follows: first, the embedded steel plate is welded on the top, the longitudinal steel bar of the lower column is first welded, then the overlay steel plate is covered with the outer steel plate, and the embedded steel plate of the lower column is placed on the steel plate; The embedded steel plate and the external steel plate are perforated in the specified position. The horizontal bolt bar is used to pass through the reserved hole of the steel plate and concrete column, the end is welded with the external steel plate, and the upper and the next sections of the column are connected to the whole column. The seismic behavior of high strength stirrups confined concrete columns with steel plate corrugated bars is studied by means of experimental study, numerical simulation and bearing capacity analysis of connection joints. In this paper, two concrete columns with high strength stirrups, two concrete columns with normal reinforcement and two concrete columns with high strength stirrups are tested under low cycle and horizontal loading. The whole process of stress deformation-damage crack and yield of 6 specimens was observed and recorded and the failure characteristics hysteretic curves skeleton curves stiffness attenuation displacement ductility and energy dissipation capacity of each specimen were analyzed. The test results show that under the same conditions, the confined concrete columns with high strength stirrups connected with steel plate bolted bars have the same bearing capacity, energy dissipation, ductility and good seismic performance as the cast-in-place columns. The connection joint is not destroyed before the component, which indicates that the steel plate bolted joint with welding and horizontal corrugated bars can meet the requirements of the strong joint and is safe and reliable. On the basis of the test, the bearing capacity of the connection joint is analyzed, and the bearing capacity formula of the normal section and the inclined section of the connection joint is derived. In this paper, the strength checking method of steel plate, weld seam and horizontal bolted bar is studied, which provides the experimental data and theoretical basis for the design of the new connection joint. Combined with the test, the three-dimensional solid finite element model of the steel plate bolt-bar connection high-strength stirrups confined concrete assembly column is established by using ABAQUS software. The stress process, deformation and stress-strain distribution of the members under reciprocating horizontal load are analyzed. The seismic performance and engineering application of this prefabricated column are comprehensively evaluated.
【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)】：TU398;TU352.11

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 張大長(zhǎng);支正東;盧中強(qiáng);金如元;;外殼預(yù)制核心現(xiàn)澆裝配式RC柱抗震性能的試驗(yàn)研究[J];工程力學(xué);2009年08期

2 胡海濤,葉知滿;復(fù)合箍筋約束高強(qiáng)混凝土應(yīng)力應(yīng)變性能[J];工業(yè)建筑;1997年10期

3 曹新明,熊嵐,郭獻(xiàn)忠;約束高強(qiáng)混凝土軸心受壓柱的延性[J];貴州工業(yè)大學(xué)學(xué)報(bào)(自然科學(xué)版);2002年06期

4 吳綺蕓;龍明英;;約束混凝土構(gòu)件的變形性能[J];地震工程動(dòng)態(tài);1984年02期

5 蔡健，楊明，呂永森;鋼筋混凝土圓柱中圓形螺旋箍筋的受力機(jī)理[J];華南理工大學(xué)學(xué)報(bào)(自然科學(xué)版);1996年09期

6 王清湘,趙國(guó)藩,林立巖;冷軋帶肋箍筋柱軸壓比及配箍率的試驗(yàn)研究[J];建筑結(jié)構(gòu);1999年09期

7 張勁;王慶揚(yáng);胡守營(yíng);王傳甲;;ABAQUS混凝土損傷塑性模型參數(shù)驗(yàn)證[J];建筑結(jié)構(gòu);2008年08期

8 嚴(yán)薇,曹永紅,李國(guó)榮;裝配式結(jié)構(gòu)體系的發(fā)展與建筑工業(yè)化[J];重慶建筑大學(xué)學(xué)報(bào);2004年05期

9 翁義軍,沈聚敏,馬寶民;復(fù)合箍對(duì)鋼筋混凝土柱延性的改善[J];建筑結(jié)構(gòu)學(xué)報(bào);1985年01期

10 郭忠賢,劉志鴻,車曉;低周反復(fù)水平荷載作用下柱配有方形螺旋箍筋的鋼筋混凝土單元框架抗震性能試驗(yàn)研究[J];建筑結(jié)構(gòu)學(xué)報(bào);2001年01期

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