CGMM加固钢筋混凝土圆柱的拟静力试验研究
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徐聪(1994—),男,硕士研究生,研究方向为桥梁工程。

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TU375.3;TU376

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苏州市市级建设科研项目(苏住建科[2018]6 号);苏州科技大学科研创新计划项目(SKCX17-022)


Pseudo Static Experiment of Reinforced Concrete Circular Columns Strengthened with CGMM
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    摘要:

    钢筋混凝土柱是结构的主要承重构件,为更有效提高试件的抗震加固效率,提出采用不同高度的水泥基灌浆料及钢丝网 (CGMM)加固思路。 试验制作 3 根钢筋混凝土圆柱进行低周反复加载,主要介绍了试验过程,分析研究各试件破坏机理、滞回性能、延性、耗能能力及刚度退化。 试验结果表明:CPRP1,CPRP2 试件较 CP 试件抗震能力有显著提高;加固高度不同的试件,随 CGMM 加固层的增高,试件峰值荷载、延性、耗能均增大,刚度退化减缓。

    Abstract:

    Reinforced concrete columns are the main load-bearing component of the structure. In order to en- hance more efficiently the seismic behavior of reinforced concrete columns, a method to strengthen column by using different height of cement-based grouting material with steel wire mesh (CGMM)was proposed. Three rein- forced concrete columns were tested under low reversed cyclic loading and the process of tests was introduced. Failure mechanism, hysteretic behavior, ductility, cumulative energy dissipation and stiffness degradation of specimens were analyzed. The experimental results showed that the seismic performances of CPRP1 and CPRP2 specimens were significantly higher than that of CP specimen. In the columns of different strengthened height, with the increase of CGMM strengthened layer, the peak load, ductility and energy dissipation of specimen in- creased and the stiffness degradation became less rapid.

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徐聪,陈建兵,李响. CGMM加固钢筋混凝土圆柱的拟静力试验研究[J].华东交通大学学报,2019,36(2):8-14.

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  • 在线发布日期: 2021-05-31
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