Punching shear strengthening of flat-slabs with CFRP dowels

被引：18
|
作者：
Erdogan, H. [1 ]
Binici, B. [1 ]
Ozcebe, G. [1 ]
机构：
[1] Kocaeli Univ, Dept Civil Engn, TR-41380 Kocaeli, Turkey
来源：
MAGAZINE OF CONCRETE RESEARCH | 2010年 / 62卷 / 07期
关键词：
FIBER-REINFORCED POLYMERS; COLUMN CONNECTIONS; PLATES; SHEETS;
D O I：
10.1680/macr.2010.62.7.465
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
An economical and easy-to-install strengthening method to enhance the punching shear capacity of slab-column connections in existing deficient flat-plate structures is presented in this study. Seven specimens representing typical interior slab-column connections were tested and experimental results are reported in detail. The strengthening scheme employs the use of in-house fabricated carbon fibre reinforced polymer (CFRP) dowels placed around the column stubs in different numbers and arrangements as vertical shear reinforcement. The test results indicated that the ultimate punching shear capacity of the strengthened specimens improved up to 1.33 times that of the specimen without any strengthening. The experimental punching shear capacities and observed failure modes of the specimens were compared with the estimations of strength and failure modes given by the punching shear strength provisions of three different concrete design codes.
引用
收藏
页码：465 / 478
页数：14
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