Foundation for Columns in a Row
The most suitable type of foundation for a series of columns constructed in a row is a strip footing.
Reasoning for Strip Footing
- A strip footing is essentially a continuous strip of concrete that runs along the line of support.
- It is designed to distribute the loads from multiple columns (or a continuous load-bearing wall) evenly over a wider area of soil.
- This type of foundation is cost-effective and structurally sound when columns are arranged linearly.
Other Foundation Types
- Footing (Isolated): Typically used for single columns, not ideal for a row.
- Raft Foundation: Used for entire structures, especially on weak soil, not specific to a single row of columns.
- Strap Foundation: Connects two isolated footings, usually when one column is far from others, not the primary choice for a uniform row.
Therefore, for columns constructed in a row, a continuous strip footing is the appropriate foundation choice.
Important Questions from Shallow Foundation
According to Terzaghi theory, what is the value of coefficient (Nc) for an angle of shear resistance (ϕ) = 0?
If two individual footings are too close as per design, then they should be converted as
A raft foundation of 6 m × 9 m is placed at a depth of 3 m in a cohesive soil having c = 120 kN/m 2. The net ultimate bearing capacity of the soil using Terzaghi's theory will be.
Piles are usually driven by
The type of footing in which the load bearing structures share the common rectangular or trapezoidal footing is called:
