Abstract
采用体外粘贴碳纤维板 (CFRP)或钢板加固钢筋混凝土结构构件是一种有效的加固方法。近年来 ,世界上许多学者对此做了大量的研究工作 ,并取得了很大的成果。但迄今为止研究的重点仍然是钢筋混凝土梁及单向板 ,双向板的研究还相当少。为此 ,本文着重对受集中荷载作用的粘钢加固混凝土双向板的受力性能 :包括变形 ,抗裂 ,破坏形态和承载力等进行了较为深入的试验研究和理论分析。基于塑性铰线理论 ,导出了该类板的极限承载力计算公式。||The behavior of two?way slabs externally strengthened with a steel plate to subject a patch load is studied in the paper, it is a simply supported reinforced concrete slab. It is focused to study the deformation, the crack resistance, the failure mode, and the bearing capacity of the strengthened slabs. At same time, a test of five pieces of reinforced concrete square slabs bonded with steel plate is carried out. Based on the yield?line method, a practical method to predict the ultimate load of strengthened slabs is proposed. It is found that the results of proposed method are in good agreement with the minimum of upper bond value.
| Original language | Chinese (Simplified) |
|---|---|
| Pages (from-to) | 20-25 |
| Number of pages | 6 |
| Journal | 土木工程学报 (China civil engineering journal) |
| Volume | 35 |
| Issue number | 2 |
| Publication status | Published - 2002 |
Keywords
- Strengthening
- Reinforced concrete
- Two-way slab
- Bonding
- Yield-line method
ASJC Scopus subject areas
- Arts and Humanities (miscellaneous)
- Civil and Structural Engineering
- Building and Construction
- Architecture