Final answer:
The correct spacing of lateral reinforcement in pre-cast reinforced concrete piles should not be less than the least width of the pile, with the proper spacing being equal to the pile width. This ensures the structural integrity and performance of the concrete piles in various load conditions. Option b is the correct answer.
Step-by-step explanation:
The centre to centre spacing of lateral reinforcement in pre-cast reinforced concrete piles should not be less than the width of the pile. This practice ensures the structural integrity and helps in maintaining the durability of the pile against various loads and forces such as bending moments, shear forces, and axial loads. The correct spacing is vital for the performance of concrete piles, as it prevents buckling of the reinforcement and provides adequate support and confinement to the core concrete. According to standards and guidelines on pile construction, the minimum spacing of the lateral reinforcement should not be less than the least width (dimension) of the pile.
Based on available guidelines and the choices provided in the question, the correct option for the minimum spacing of the lateral reinforcement in a pre-cast reinforced concrete pile compared to the least width of the pile is:
This means that the lateral reinforcement spacing cannot be less than the actual width of the pile. The reinforcement plays a critical role in the strength and durability of these structures, therefore adhering to these guidelines is extremely important for the safety of the constructions utilizing these piles.
Please note that while this information is accurate to the best of my knowledge, it is always recommended to consult the specific building codes and regulations that apply to your particular project as these may vary by region and more recent updates.