原文传递
Design Approach to Determine Shear Capacity of Reinforced Concrete Beams Shear Strengthened with NSM Systems
| 题名： | Design Approach to Determine Shear Capacity of Reinforced Concrete Beams Shear Strengthened with NSM Systems |
| 正文语种： | 英文 |
| 作者： | Hadi Baghi, A.M.ASCE;Joaquim A. O，Barros |
| 作者单位： | Louisiana Tech Univ;Univ, of Minho |
| 关键词： | Reinforced concrete beams; Shear strengthening; Fiber reinforced polymer; Simplified modified compression field theory; Sensitivity analysis; Monte Carlo simulation; Concrete and masonry structures. |
| 摘要： | This paper presents a design approach to predict the shear capacity of RC beams strengthened with fiber reinforced polymer (FRP) laminates/rods applied according to the near-surface mounted (NSM) technique. The new approach is based on simplified modified compression field theory (SMCFT) and considers the relevant features of the interaction between NSM FRP systems and surrounding concrete, such as debonding and concrete fracture. In the SMCFT model, the shear strength of an RC element is a function of two parameters, the tensile stress factor in the cracked concrete (0), and the inclination of the diagonal compressive stress in the web of the section (0). However, this approach is not a straightforward design methodology due to its iterative nature. A sensitivity analysis is carried out to assess the relative importance of each input parameter that mostly affect the shear capacity of RC beams shear strengthened according to the NSM technique. Equations to determine and without resorting to an iterative procedure are derived. The experimental results of 140 beams shear strengthened with NSM FRP are used to appraise the predictive performance of the developed approach. DOI: 10.106l/(ASCE)ST.1943-541X.0001793. © 2017 American Society of Civil Engineers. |
| 出版日期： | 2017.08 |
| 出版年： | 2017 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | Vol.143 |
| 期： | NO.08 |
| 页码： | 04017061 |
相关文献
- Novel Truss Analogy Approach to Analyze Reinforced Concrete Deep Beams Strengthened with Externally Bonded FRP Systems
- Reinforced Concrete Beams Strengthened in Flexure with Near-Surface Mounted 7075 Aluminum Alloy Bars
- Design-Oriented Solutions for the Shear Capacity of Reinforced Concrete Beams with and without Fibers
- Shear Design of Strain-Hardening Fiber-Reinforced Concrete Beams
- Discussion of "Simplified Shear Design of Slender Reinforced Concrete Beams with Stirrups" by Zhi-Qi He, Zhao Liu, and Zhongguo John Ma
- Shear Capacity of Doubly Skinned Composite Beams with Lacings
检索历史
应用推荐
