Why is the main reinforcement provided on the longer side of raft footing?
Factors affecting the selection of foundation: Factors affecting the selection of foundation based on politics to basic criteria: Based on soil condition Based on loads from the building 1. based on soil condition: The shallow foundations are most preferred Foundation whenever the soil close to theRead more
Factors affecting the selection of foundation:
Factors affecting the selection of foundation based on politics to basic criteria:
- Based on soil condition
- Based on loads from the building
1. based on soil condition:
- The shallow foundations are most preferred Foundation whenever the soil close to the surface which is capable of support structural loads.
- Where ground close to the surface is not capable of supporting structural loads Din hard starter is used for the foundation is required.
- The stable ground requires Shallow Foundation whereas filled up Grounds has low bearing capacity thus requires deep Foundation.
2. based on loads from the building:
- In case of very low height building in a larger area than the extent of loading is relatively very slow and that’s why Shallow Foundation con resists the load from the structures.
- In the case of high rise building with less area and high amount of loads. In that case, the foundation is required. Because the shallow Foundation may not be able to resist such high loads of great intensity.
Thank you.
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nikeetasharma
The longest span is in more critical section due to which main reinforcement is provided on the longer span. The longest span has to bear a higher bending moment. This is because the uplift pressure from the soil below will be equal in all locations, but the moment developed at the longer span willRead more
The longest span is in more critical section due to which main reinforcement is provided on the longer span. The longest span has to bear a higher bending moment. This is because the uplift pressure from the soil below will be equal in all locations, but the moment developed at the longer span will be higher because of a long arm. Its a uniformly distributed load and so it produces a larger moment on a longer beam. Thus, the main reinforcement is provided in longer span.
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