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EXPERIMENTAL RESEARCH ON THE REINFORCEMENT OF BRICK WALLS WITH X-SHAPED STEEL MESH AND HIGH-STRENGTH MORTAR
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摘要: 对砖墙应用Ⅹ形钢筋网结合喷射高强改性砂浆的加固技术进行研究，通过在低周往复荷载作用下对砖墙加固后的效果进行试验，分析墙体的滞回特性、破坏形态以及变形、耗能、抗剪能力等技术指标，探讨Ⅹ形钢筋网高强砂浆对砖墙加固抗震性能的影响。试验表明，采用Ⅹ形钢筋网高强砂浆加固后的墙体具有很高的极限抗剪承载力，可大大提高原墙体抵抗水平地震作用的能力，结构的变形、耗能能力均增加。Abstract: The article introduces a technology of applying X-shaped steel mesh combined with high-strength mortar in the reinforcement of brick walls.Then an experiment was conducted to test the effect after the reinforcement under low-cyclic loading.It analysed was the hysteretic characteristics, failure mode, energy dissipation and shear resistance of brick walls with this strengthening method.And the influence of using X-shaped steel mesh combined with high-strength mortar on the seismic behavior of the brick walls was also discussed.The tests show that using this strengthening method can make the walls own a high degree of ultimate shear strength, and greatly improve the walls' ability to resist earthquake forces.Structural deformation and capacity of energy dissipation can also be increased.
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Key words:
- brick wall /
- X-shaped steel mesh /
- high-strength mortar /
- seismic reinforcement
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