原文传递
Strain Rate Effect on Development Length of Steel Reinforcement
| 题名： | Strain Rate Effect on Development Length of Steel Reinforcement |
| 其他题名： | CSA(Canadian Standards Association).(2004)."Design of concrete structures."A23.3-04,Mississauga,ON. |
| 正文语种： | 英文 |
| 作者： | Lauren Toikka |
| 关键词： | Shock and vibratory effects |
| 摘要： | Accidental or premeditated explosions have detrimental effects on the infrastructure near the center of explosion and pose major threats to human life. Thus, research is currently underway to study the effects of explosions on infrastructure systems with the ultimate goal of minimizing infrastructure damage and saving lives. Because reinforced concrete is the most common building material used in blastresistant infrastructure design and construction, understanding the effect of blast loads on reinforced concrete components is essential to reaching this goal. The prevailing design philosophy for blast-resistant structures is energy dissipation through reinforcement yielding (ductility) and large bending deformations without the incidence of nonductile failure modes such as shear and bond. However, information regarding the bond behavior and strength of steel reinforcement–concrete bonds under blast loads is rather scant; therefore, this paper reports on an experimental program designed to investigate the strain rate effect on steel reinforcement–concrete bond. Reinforced concrete beams longitudinally reinforced with 15M, 20M, or 25M were tested in a shock tube under simulated blast loading. The test results show that high strain rate increases the steel reinforcement–concrete bond strength and thus, that the static load development lengths of these bars are adequate for developing their dynamic yield strengths at high strain rate. The dynamic increase factor for bond stress is determined to be 1.11 for 15M, 2.24 for 20M, and 3.68 for 25M bar. |
| 出版年： | 2015 |
| 论文唯一标识： | P-26Y2015V141N11029 |
| 英文栏目名称： | Technical Papers |
| doi： | 10.1061/(ASCE)ST.1943-541X.0001288 |
| 期刊名称： | Journal of Structural Engineering |
| 拼音刊名(出版物代码)： | P-26 |
| 卷： | 141 |
| 期： | 11 |
| 页码： | 318-331 |
相关文献
- Discussion of "Strain Rate Effect on Development Length of Steel Reinforcement" by Lauren Toikka, Abass Braimah, Ghani Razaqpur, and Simon Foo
- Dynamic Hardening Behavior and Ductile Fracture of High-Strength Steel at Intermediate Strain Rates
- High-Strain-Rate Response of Reinforced Concrete Lap-Spliced Beams
- Experimental Performance Assessment of Nearly Full-Scale Reinforced Concrete Columns with Partially Debonded Longitudinal Reinforcement
- Postyield Bond Deterioration and Damage Assessment of RC Beams Using Distributed Fiber-Optic Strain Sensing System
- Transfer and development length of high-strength duplex stainless steel strand in prestressed concrete piles
检索历史
应用推荐
