页岩烧结保温砌块超薄灰缝墙体抗震性能试验研究
发布时间：2018-09-01 19:08
【摘要】：为研究页岩烧结保温砌块超薄灰缝墙体的抗震性能,以有无构造柱、竖向压应力、高宽比、开洞率及开洞形式作为设计参数设计并制作10个试件,对其进行水平低周反复荷载试验。分析了该类墙体在拟静力荷载作用下的破坏过程和破坏形态,研究了构造柱、竖向压应力、高宽比、开洞率及开洞形式对其承载力、滞回曲线、骨架曲线、延性、耗能性能、刚度退化等的影响。试验结果表明:构造柱-圈梁体系充分发挥了其对内部砌体墙的约束作用,实现了墙体"裂而不倒"的目标;增加竖向压应力、减小高宽比,均可提高墙体的受剪承载力,减缓墙体刚度退化速度;构造柱的存在对提高墙体受剪承载力和延性均有明显效果;洞口的削弱作用使墙体受剪承载力下降,耗能能力变差。建立了页岩烧结保温砌块超薄灰缝墙体受剪承载力计算式,计算结果与试验结果吻合较好。
[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.
【作者单位】： 西安建筑科技大学土木工程学院;西安墙体材料研究设计院;新疆凯乐新材料有限公司;
【基金】：国家科技支撑计划子课题(2011BAJ04B01-02,2011BAJ08B05-4,2012BAJ19B04-02) 西安建筑科技大学创新团队资助计划
【分类号】：TU364;TU352.11
[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.
【作者单位】： 西安建筑科技大学土木工程学院;西安墙体材料研究设计院;新疆凯乐新材料有限公司;
【基金】：国家科技支撑计划子课题(2011BAJ04B01-02,2011BAJ08B05-4,2012BAJ19B04-02) 西安建筑科技大学创新团队资助计划
【分类号】：TU364;TU352.11
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