材料科学
复合材料
结构工程
纤维增强塑料
拉伤
栏(排版)
钢筋混凝土
碳纤维增强聚合物
测距
计算机科学
工程类
医学
连接(主束)
内科学
电信
作者
Thong M. Pham,Muhammad N.S. Hadi
出处
期刊:Journal of Composites for Construction
[American Society of Civil Engineers]
日期:2013-05-16
卷期号:17 (6)
被引量:42
标识
DOI:10.1061/(asce)cc.1943-5614.0000397
摘要
A new model is presented for calculating the axial strain of carbon fiber-reinforced polymer (CFRP)-confined concrete columns. An energy-balance approach is introduced to establish a relationship of the energy absorption between a confined concrete column and CFRP. The proposed model was verified using a large database collected from 167 CFRP-confined plain concrete specimens. This database contains 98 circular specimens with diameters ranging between 100 and 152 mm, and 69 square specimens having a side length ranging between 100 and 152 mm. The database covers unconfined concrete strengths from 20 to 50 MPa. The proposed model shows very good correlation with the experimental results. In addition, the proposed model also provides a comparative prediction of the strain of CFRP-confined concrete columns in two extreme cases, i.e., (1) insufficient confinement, and (2) heavy confinement, which are not usually well predicted by other models.
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