原文传递
Flexure-Shear Capacity of Perforated Steel Beams Reinforced with Novel Ring Plates
| 题名： | Flexure-Shear Capacity of Perforated Steel Beams Reinforced with Novel Ring Plates |
| 正文语种： | eng |
| 作者： | Ho-Jun Lee;Hong-Gun Park;Hyeon-Jong Hwang |
| 作者单位： | Steel Structure Research Group Pohang Iron and Steel Company;Seoul National Univ.;Konkuk Univ. |
| 关键词： | Perforated steel beam;Circular web opening;Opening reinforcement;Half-ring plates;Flexure-shear capacity;Cyclic loading test |
| 摘要： | Abstract A web opening at the end zone of an I-section steel beam decreases the load-carrying capacity of the steel member. In the present study, a reinforcement method for circular web opening was investigated, applying novel half-ring plates for better economy. To validate the structural performance of the proposed reinforcement, cyclic loading tests were performed on cantilever beams having a web opening adjacent to the plastic hinge zone. The test parameters were shear span-to-depth ratio (i.e., L/d=4.9 or 2.9), opening diameter-to-beam depth ratio (i.e., H/d=0.5 or 0.67), and ring-to-opening diameter ratio (i.e., 2R/H=1.3, 1.5, or 1.7). The test results showed that the ring plates successfully strengthened the web opening, developing a plastic hinge at the beam end. Further, irrespective of the design parameters and failure modes, the load-carrying capacity of the reinforced specimens was maintained up to large inelastic deformation. This result indicates that the plate-reinforcing method is effective for increasing both strength and deformation capacity of the perforated beams. To evaluate the flexure-shear capacity of the reinforced opening, an existing model for circular web opening without reinforcement was modified. The predicted flexure-shear interactions agreed well with the test strengths. On the basis of the test results, design considerations for the proposed reinforcement method are recommended. |
| 出版年： | 2023 |
| 期刊名称： | Journal of structural engineering |
| 卷： | 149 |
| 期： | 9 |
| 页码： | 04023116.1-04023116.15 |
相关文献
- Shear Capacity of Doubly Skinned Composite Beams with Lacings
- Shear Performance of Fire-Damaged Reinforced Concrete Beams Repaired by a Bolted Side-Plating Technique
- Seismic Performance of Coupled Steel Plate Shear Walls with Different Degrees of Coupling
- Cyclic Performance of Steel Plate-Reinforced High Toughness-Concrete Coupling Beams with Different Span-to-Depth Ratios
- Decomposition of the Shear Capacity of Steel Fiber-Reinforced Concrete Coupling Beams
- Shear Resistance of a Biaxial Hollow Composite Floor System with GFRP Plates
检索历史
应用推荐
