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论文类型：期刊论文

发表时间：2015-12-05

发表刊物：Jianzhu Jiegou Xuebao/Journal of Building Structures

收录刊物：EI、PKU、ISTIC、Scopus

卷号：36

页面范围：183-187

ISSN号：10006869

摘要：Dynamic properties of CFRP reinforced concrete slabs were identified through numerical study via the software ANSYS. The dynamic performances of the concrete slabs before and after strengthening with different layers of CFRP were compared by calculating the dynamic parameters with discrete finite element models. The numerical results indicate that the cracks of strengthened concrete slabs have been obviously reduced, and the stiffness improved, leading to smaller deflections than the slab without CFRP. With the increase of CFRP layers, the peak values of the dynamic stresses, displacement, velocity and acceleration of the strengthened slabs are gradually decreased. The external enhancement with two layers of CFRP is the most effective in both strengthening effect and material utilization. ? 2015, Science Press. All right reserved.