The maximum permissible total settlement allowed in frame structure is...
Maximum Permissible Total Settlement in Frame Structure
In frame structures, settlement refers to the downward movement of the foundation or the structure as a whole. Settlement can occur due to various factors such as the consolidation of soil, insufficient bearing capacity of the foundation, or uneven loading on the structure.
Importance of Settlement Limit
Settlement is a critical factor to consider in the design and construction of frame structures as excessive settlement can lead to structural damage, cracking, and even collapse. Therefore, there is a maximum permissible total settlement limit that must be adhered to in order to ensure the safety and stability of the structure.
Determining the Maximum Permissible Total Settlement
The maximum permissible total settlement allowed in frame structures is typically determined based on the following factors:
- Type of Structure: The type of structure plays a significant role in determining the acceptable settlement limit. For example, buildings with more rigid frames and higher occupancy levels may have stricter settlement limits compared to smaller, less critical structures.
- Soil Conditions: The characteristics of the soil on which the structure is built also influence the settlement limit. Soils with low bearing capacity or high compressibility may require lower settlement limits to prevent excessive settlement.
- Building Codes and Standards: Local building codes and standards provide guidelines on the maximum permissible settlement limits for different types of structures. These codes are based on extensive research, engineering principles, and safety considerations.
Answer to the Question
The maximum permissible total settlement allowed in frame structures is typically set at 200mm (Option B). This value ensures that the settlement remains within acceptable limits to maintain the structural integrity and safety of the building.
It is important to note that the actual settlement limit may vary depending on the specific project requirements, site conditions, and local building regulations. Therefore, it is crucial to consult the applicable codes and standards, as well as engage with experienced structural engineers, to determine the appropriate settlement limit for a particular frame structure.