360R-06 Design of Slabs-on-Ground
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- Điều hướng trang này:
- 2.3—General comparison of slab types
- 2.4—Design and construction variables
- 2.5—Conclusion
| 360R-6 ACI COMMITTEE REPORT
and perimeter foundations, with a compressible material that allows the initial slab expansion. Design methods for slabs reinforced to prevent cracking can be found in Chapters 8 and 9 . 2.2.4 Structural slabs—Slabs that transmit vertical loads or lateral forces from other portions of the structure to the soil should be designed in accordance with ACI 318. Using the methods in ACI 318 with high steel reinforcement stresses, however, may lead to unacceptably wide crack widths. For an unreinforced (plain) structural concrete slab, the requirements of ACI 318, Chapter 22, “Structural Plain Concrete,” should be used. 2.3—General comparison of slab types Table 2.1 provides general advantages and disadvantages for the various slab types discussed in Section 2.2 . This table can assist the designer with selecting the slab type that is most appropriate for the particular project. 2.4—Design and construction variables Design and construction of slabs-on-ground involves both technical and human factors. The technical factors include loadings, soil-support systems, joint types and spacings, design method, slab type, concrete mixture, development of maintenance procedures, and the construction process. Human factors involve the workers’ abilities, feedback to evaluate the construction process, and conformance to proper maintenance procedures for cracking, curling, shrinkage, and other conditions. These and other factors should be considered when designing a slab (Westergaard 1926). 2.5—Conclusion There is no single design technique recommended for all applications. Rather, there are a number of identifiable construction concepts and a number of design methods. Each combination should be selected based on the requirements of the specific application. tải về 2.35 Mb. Chia sẻ với bạn bè của bạn:
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