HPFL条带加固眠墙抗剪试验研究
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摘要
为了了解高性能水泥复合砂浆薄层(High Performance Ferrocement Laminate,简称HPFL)加固低强度眠墙的抗震性能,本文通过1片未加固眠墙和4片采用HPFL条带加固的眠墙的水平低周反复荷载试验,对比研究了各个墙片的抗震性能。试验结果表明,用HPFL条带加固后的眠墙显著提高了其开裂荷载和极限荷载,墙体的脆性性质有所改善。通过进一步的分析得出了HPFL条带加固砖墙的抗剪承载力计算公式,以供加固设计人员参考。HPFL加固方法可应用于广大农村地区的砌体结构抗震加固。
In order to understand the anti-seismic performance of low-grade solid wall reinforced by HPFL (High Performance Ferrocement Laminate), we conduct horizontal low-cyclic load tests on a non-reinforced solid wall and 4 HPFL reinforced solid walls, and analyze their anti-seismic performance. The test result shows that the cracking load and ultimate load of solid wall after being reinforced by HPFL are significantly improved and so is its brittleness. Through further study, shear strength calculation formula of HPFL reinforced brick wall is also derived for architects’ reference. HPFL reinforcement method can be applied to the masonry structure of seismic reinforcement in rural area.
In order to understand the anti-seismic performance of low-grade solid wall reinforced by HPFL (High Performance Ferrocement Laminate), we conduct horizontal low-cyclic load tests on a non-reinforced solid wall and 4 HPFL reinforced solid walls, and analyze their anti-seismic performance. The test result shows that the cracking load and ultimate load of solid wall after being reinforced by HPFL are significantly improved and so is its brittleness. Through further study, shear strength calculation formula of HPFL reinforced brick wall is also derived for architects’ reference. HPFL reinforcement method can be applied to the masonry structure of seismic reinforcement in rural area.
引文
蒋隆敏,尚守平,黄政宇,2005.一种实用于钢丝(筋)网水泥加固RC结构的纤维增强复合砂浆和界面剂.土木工程学报,38(5):43—47.
潘永灿,荀勇,刘家彬,2010.碳纤维织物网-聚合物砂浆复合面层加固砖墙的试验研究.混凝土,243(1):124—129.
尚守平,罗致,奉杰超等,2009.HPFL加固前后空斗墙片抗侧刚度实验.广西大学学报(自然科学版),35(4):519—523.
尚守平,蒋隆敏,张毛心,2005.钢筋网高性能复合砂浆加固RC偏心受压柱的实验研究.建筑结构学报,26(2):18—23.
王全凤,柴振岭,黄奕辉等,2006.GFRP复合材料加固带壁柱砖墙抗震性能试验研究.土木工程学报,39(8):65—71.
张祥顺,谷倩,彭少民等,2003.CFRP对砖墙抗震加固对比试验研究与计算分析.世界地震工程,19(1):77—82.
张蔚,李爱群,姚秋来等,2009.高强钢绞线网-聚合物砂浆抗震加固既有建筑砖墙体试验研究.建筑结构学报,30(4):55—60.
潘永灿,荀勇,刘家彬,2010.碳纤维织物网-聚合物砂浆复合面层加固砖墙的试验研究.混凝土,243(1):124—129.
尚守平,罗致,奉杰超等,2009.HPFL加固前后空斗墙片抗侧刚度实验.广西大学学报(自然科学版),35(4):519—523.
尚守平,蒋隆敏,张毛心,2005.钢筋网高性能复合砂浆加固RC偏心受压柱的实验研究.建筑结构学报,26(2):18—23.
王全凤,柴振岭,黄奕辉等,2006.GFRP复合材料加固带壁柱砖墙抗震性能试验研究.土木工程学报,39(8):65—71.
张祥顺,谷倩,彭少民等,2003.CFRP对砖墙抗震加固对比试验研究与计算分析.世界地震工程,19(1):77—82.
张蔚,李爱群,姚秋来等,2009.高强钢绞线网-聚合物砂浆抗震加固既有建筑砖墙体试验研究.建筑结构学报,30(4):55—60.
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