【摘要】：為研究頁巖燒結(jié)保溫砌塊超薄灰縫墻體的抗震性能,以有無構(gòu)造柱、豎向壓應(yīng)力、高寬比、開洞率及開洞形式作為設(shè)計(jì)參數(shù)設(shè)計(jì)并制作10個(gè)試件,對其進(jìn)行水平低周反復(fù)荷載試驗(yàn)。分析了該類墻體在擬靜力荷載作用下的破壞過程和破壞形態(tài),研究了構(gòu)造柱、豎向壓應(yīng)力、高寬比、開洞率及開洞形式對其承載力、滯回曲線、骨架曲線、延性、耗能性能、剛度退化等的影響。試驗(yàn)結(jié)果表明:構(gòu)造柱-圈梁體系充分發(fā)揮了其對內(nèi)部砌體墻的約束作用,實(shí)現(xiàn)了墻體"裂而不倒"的目標(biāo);增加豎向壓應(yīng)力、減小高寬比,均可提高墻體的受剪承載力,減緩墻體剛度退化速度;構(gòu)造柱的存在對提高墻體受剪承載力和延性均有明顯效果;洞口的削弱作用使墻體受剪承載力下降,耗能能力變差。建立了頁巖燒結(jié)保溫砌塊超薄灰縫墻體受剪承載力計(jì)算式,計(jì)算結(jié)果與試驗(yàn)結(jié)果吻合較好。
[Abstract]:In order to study the seismic behavior of ultra-thin ash joint wall of shale-sintered insulating block, 10 specimens were designed and made with or without structural columns, vertical compressive stress, aspect ratio, opening rate and opening form. The horizontal low cycle cyclic loading test was carried out. The failure process and failure form of this kind of wall under quasi-static load are analyzed, and the structural column, vertical compressive stress, aspect ratio, opening rate and opening form to its bearing capacity, hysteretic curve, skeleton curve, ductility, energy dissipation performance are studied. The effect of stiffness degradation etc. The test results show that the structure column-ring beam system can fully exert its constraint on the internal masonry wall, realize the goal of "cracking but not falling down", increase the vertical compressive stress and reduce the aspect ratio, which can increase the shear capacity of the wall, and the shear capacity of the wall can be improved by increasing the vertical compressive stress and reducing the ratio of height to width. The stiffness degradation rate of the wall is slowed down, the existence of the structural column has obvious effect on improving the shear capacity and ductility of the wall, and the weakening effect of the hole makes the shear capacity of the wall decrease and the energy dissipation capacity become worse. A formula for calculating the shear capacity of ultra-thin ash joint wall of shale sintered insulating block is established. The calculated results are in good agreement with the experimental results.
【作者單位】： 西安建筑科技大學(xué)土木工程學(xué)院;西安墻體材料研究設(shè)計(jì)院;新疆凱樂新材料有限公司;
【基金】：國家科技支撐計(jì)劃子課題(2011BAJ04B01-02,2011BAJ08B05-4,2012BAJ19B04-02) 西安建筑科技大學(xué)創(chuàng)新團(tuán)隊(duì)資助計(jì)劃
【分類號】：TU364;TU352.11

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