原文传递
Compressive Membrane Capacity Estimates in Laterally Edge Restrained Reinforced Concrete One-Way Slabs; Civil engineering studies
| 题名： | Compressive Membrane Capacity Estimates in Laterally Edge Restrained Reinforced Concrete One-Way Slabs; Civil engineering studies |
| 作者： | Welch, R. W.; Hall, W. J.; Gamble, W. L. |
| 关键词： | Concrete slabs; Reinforced concrete; Membranes; Finite element analysis; Reinforcing steels; Deflection; Webs(Sheets); Sheels(Structure forms) |
| 摘要： | The load capacity of laterally restrained reinforced concrete one-way slabs is estimated in compressive membrane theory with the use of a midspan deflection. However, the midspan deflection estimates exhibit large variability. The point of peak thrust leads to a more accurate index of the peak load capacity than midspan deflection. The calculation of the thrust within the compressive membrane theory is a maximum when the slab's axial shortening and the outward support movement are a maximum. The use of the peak thrust to select the peak capacity, when combined with a modification to Park and Gamble's (1980) compressive membrane theory, provides an improved overall correlation to the experimental data for a large range of span-to-thickness rations (2.7 < L/h < 28.3). In this study, peak midspan deflection estimates were developed to define the peak point of the load-deflection curve. The slab's axial concrete compressive strength and the peak concrete compressive strain are used within a curvature and geometrically based deflection equation, to preduct the midspan deflection. The post-peak trough and ultimate points are related empirically to the tensil membrane curve, and the generated load-deflection curve compares well with the experimental data. |
| 总页数： | 454p |
| 报告类型： | 科技报告 |
相关文献
- Driver Understanding of Red Retroreflective Raised Pavement Markers.
- CAPACITY OF ONE-WAY YIELD-CONTROLLED INTERSECTIONS.
- AASHTO'S LOAD AND RESISTANCE FACTOR DESIGN SPECIFICATIONS FOR TRANSVERSE BRACES: ADVERSE EFFECTS ON INTEGRITY AND DURABILITY OF REINFORCED CONCRETE DECK SLABS.
- Field Performance of Continuously Reinforced Concrete Pavement in Illinois; Civil engineering studies
- Operational Effects of Geometrics and Access Management 2013.Transportation Research Record: Journal of the Transportation Research Board, No. 2348.
- Free-Floating Carsharing Systems: Innovations in Membership Prediction, Mode Share, and Vehicle Allocation Optimization Methodologies.
检索历史
应用推荐
