工程力学 ›› 2018, Vol. 35 ›› Issue (S1): 126-133.doi: 10.6052/j.issn.1000-4750.2017.06.S022

• 土木工程学科 • 上一篇    下一篇

玻纤格栅配筋砌块墙体抗震性能试验研究

徐春一1, 逯彪1, 余希2   

  1. 1. 沈阳建筑大学土木工程学院, 辽宁, 沈阳 110168;
    2. 中建八局浙江建设有限公司, 浙江, 杭州 311215
  • 收稿日期:2017-06-02 修回日期:2018-01-15 出版日期:2018-06-30 发布日期:2018-07-11
  • 通讯作者: 徐春一(1983-),女,辽宁人,副教授,博士,硕导,从事现代砌体结构及加固改造研究(E-mail:xuchunyiyi@163.com). E-mail:xuchunyiyi@163.com
  • 作者简介:逯彪(1992-),男,黑龙江人,硕士生,从事现代砌体结构及加固改造研究(E-mail:250982776@qq.com);余希(1992-),男,浙江人,硕士,从事现代砌体结构及加固改造研究(E-mail:398853092@qq.com).
  • 基金资助:
    国家自然科学基金项目(51408373);辽宁省自然科学基金项目(20170540765)

Experimental study on the seismic behavior of masonry wall with fiberglass geogrid

XU Chun-yi1, LU Biao1, YU Xi2   

  1. 1. School of Civil Engineering, Shenyang Jianzhu University, Shenyang, Liaoning 110168, China;
    2. Zhejiang Construction Co. Ltd of China Construction Eighth Engineer Division, Hangzhou, Zhejiang 311215, China
  • Received:2017-06-02 Revised:2018-01-15 Online:2018-06-30 Published:2018-07-11

摘要: 针对配筋砌体存在配筋层砂浆灰缝较厚,不利于节能保温,该文采用玻纤格栅土工材料替代配筋砌体中的水平钢筋,可有效减小灰缝厚度、方便施工。为研究其抗震性能,该文采用四连杆机构加载装置分别对水平配玻纤格栅砌块墙体、水平配钢筋砌块墙体和无筋砌块墙体进行低周往复荷载试验,对比分析各类墙体的破坏特征及抗震性能。试验结果表明:水平配玻纤格栅可显著提高墙体抗剪承载力、变形能力及延性。其与无筋砌块墙体相比极限荷载提高了75%,极限位移提高了7.5倍,延性系数为无筋砌块墙体的3.61倍。其与配钢筋墙体相比各抗震性能指标较为接近,且略小于配钢筋墙体。采用玻纤格栅配置在砌体水平灰缝中,不仅可以实现薄灰缝砌体,提高砌体热工性能,还可显著提高砌体墙体的抗震性能,具有很好的应用前景,对砌体结构抗震及促进建筑节能具有重要的理论价值和现实意义。

关键词: 玻纤格栅, 配筋砌体, 抗震性能, 延性分析, 蒸压加气混凝土

Abstract: The mortar seam in the reinforced masonry is thick, which is not conducive to energy saving and heat preservation. The glass fiber grille geotextile is used to replace the horizontal bar in the reinforced masonry. It can effectively reduce the thickness of mortar ash seam, leading to convenient construction. In order to study the seismic performance of horizontal glass fiber reinforced concrete block wall, horizontal reinforced concrete block wall and non-reinforced concrete block wall, the four-link-rod loading system is used to carry out cyclic test. The failure characteristics and seismic performance of various types of walls are compared and analyzed. Test results show that the horizontal glass fiber grille can significantly improve the shear capacity, deformation capacity and ductility of the wall. Compared with the non-reinforced concrete block wall, the ultimate load increases by 75%, the ultimate displacement increases by 7.5 times, and the ductility coefficient is 3.61 times of that without reinforcement. Compared with the reinforced concrete wall, the seismic performance index is slightly smaller than the reinforced concrete wall. The construction of fiber grille in masonry horizontal ash joints can not only improve thermal performance of the thin cracks in masonry, but also significantly improve the seismic performance of masonry walls. It has good application prospects, with important theoretical value and practical significance to promote the masonry structure seismic and building energy saving.

Key words: glass fiber grill, reinforced masonry, seismic behavior, ductility analysis, autoclaved aerated concrete

中图分类号: 

  • TU352.11
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