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Author:

邓宗才 (邓宗才.) (Scholars:邓宗才) | 王力 (王力.)

Indexed by:

CQVIP PKU CSCD

Abstract:

加固采用尼龙、芳纶和聚脂纤维丝混杂而成的层内混杂布(inner hybrid fiber reinforced plastics,IHFRP).通过IHFRP布约束混凝土圆柱体、棱柱体的轴压试验,研究了其破坏形态、应力-应变全曲线、峰值应力、峰值应变、弹性模量、延性.试验结果表明,与无纤维布相比,有3、4层布的试样的抗压强度和峰值应变均提高;纤维布层数相同时,圆柱体试件的抗压强度、峰值应变比棱柱体试件高;与零倒角相比倒角半径增大,棱柱体试件的峰值应力和峰值应变有不同程度提高.采用压缩韧性指数对约束柱的延性进行评价,加固柱韧性指数I20高,接近理想弹塑性材料,非常有利于结构抗震耗能.

Keyword:

层内混杂纤维布 延性 轴压 力学性能

Author Community:

  • [ 1 ] 北京工业大学城市与工程防灾减灾省部共建教育部重点实验室

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Source :

北京工业大学学报

Year: 2012

Issue: 02

Volume: 38

Page: 161-166

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 12

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